10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

__________________________________________________________

FORM 10-Q

__________________________________________________________

(Mark One)
x	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2023

or

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from __________ to __________

Commission File Number: 001-39283

__________________________________________________________

Lightning eMotors, Inc.

(Exact name of registrant as specified in its charter)

__________________________________________________________

Delaware	84-4605714
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)
815 14th Street SW Suite A100 Loveland, Colorado	80537
(Address of Principal Executive Offices)	(Zip Code)

(800) 223-0740

(Registrant’s telephone number)

__________________________________________________________

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	Trading symbol(s)	Name of Exchange on which registered
Common Stock, par value $0.0001 per share	ZEV	New York Stock Exchange
Redeemable Warrants, each full warrant exercisable for one share of Common stock at an exercise price of $230.00 per share	ZEV.WS	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes x No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	o	Accelerated filer	o
Non-accelerated filer	x	Smaller reporting company	x	Emerging growth company	x

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No x

As of May 16, 2023, there were 5,652,174 shares of the registrant’s common stock outstanding.

TABLE OF CONTENTS

		Page
Part I	Financial Information
Item 1.	Financial Statements	3
	Consolidated Balance Sheets as of March 31, 2023 (Unaudited) and December 31, 2022	3
	Consolidated Statements of Operations for the three months ended March 31, 2023 and 2022 (Unaudited)	4
	Consolidated Statements of Stockholders’ Equity for the three months ended March 31, 2023 and 2022 (Unaudited)	5
	Consolidated Statements of Cash Flows for the three months ended March 31, 2023 and 2022 (Unaudited)	6
	Notes to Consolidated Financial Statements (Unaudited)	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	31
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	40
Item 4.	Controls and Procedures	40
Part II	Other Information
Item 1.	Legal Proceedings	41
Item 1A.	Risk Factors	41
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	41
Item 3.	Defaults Upon Senior Securities	41
Item 4.	Mine Safety Disclosures	41
Item 5.	Other Information	41
Item 6.	Exhibits	42
Exhibit Index		42
Signatures		44

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PART I —FINANCIAL INFORMATION

Item 1. Financial Statements

Lightning eMotors, Inc.

Consolidated Balance Sheets

(in thousands, except share data)

	March 31, 2023		December 31, 2022
	(Unaudited)
Assets
Current assets
Cash and cash equivalents	$	35,447	$	56,011
Accounts receivable, net of allowance of $2,989 and $2,028 as of March 31, 2023 and December 31, 2022, respectively	10,901		9,899
Inventories	46,988		47,066
Prepaid expenses and other current assets	7,826		9,401
Total current assets	101,162		122,377
Property and equipment, net	12,475		11,519
Operating lease right-of-use asset, net	7,411		7,735
Other assets	1,770		1,928
Total assets	$	122,818	$	143,559
Liabilities and stockholders’ equity
Current liabilities
Accounts payable	$	5,228	$	7,961
Accrued expenses and other current liabilities	11,912		6,270
Warrant liability	54		60
Current portion of operating lease obligation	1,734		1,649
Total current liabilities	18,928		15,940
Long-term debt, net of debt discount	52,755		62,103
Operating lease obligation, net of current portion	7,262		7,735
Derivative liability	26		78
Earnout liability	1,859		2,265
Other long-term liabilities	851		880
Total liabilities	81,681		89,001
Commitments and contingencies (Note 13)
Stockholders’ equity
Preferred stock, par value $0.0001, 1,000,000 shares authorized and no shares issued and outstanding as of March 31, 2023 and December 31, 2022	—		—
Common stock, par value $0.0001, 250,000,000 shares authorized as of March 31, 2023 and December 31, 2022; 5,652,448 and 4,492,157 shares issued and outstanding as of March 31, 2023 and December 31, 2022, respectively	1		1
Additional paid-in capital	230,965		220,951
Accumulated deficit	(189,829)		(166,394)
Total stockholders’ equity	41,137		54,558
Total liabilities and stockholders’ equity	$	122,818	$	143,559

See accompanying notes to Consolidated Financial Statements.

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Lightning eMotors, Inc.

Consolidated Statements of Operations

(in thousands, except share and per share data)

(Unaudited)

	Three Months Ended March 31,
	2023		2022
Revenue, net of customer refunds	$	1,311	$	5,412
Cost of revenues	8,152		7,722
Gross loss	(6,841)		(2,310)
Operating expenses
Research and development	2,087		1,942
Selling, general and administrative	14,848		11,599
Total operating expenses	16,935		13,541
Loss from operations	(23,776)		(15,851)
Other (income) expense, net
Interest expense, net	3,129		3,861
(Gain) loss from change in fair value of warrant liabilities	(6)		(188)
(Gain) loss from change in fair value of derivative liability	(39)		(2,555)
(Gain) loss from change in earnout liability	(406)		(6,172)
Gain on extinguishment of debt	(2,965)		—
Other expense (income), net	(54)		(41)
Total other (income) expense, net	(341)		(5,095)
Net income (loss)	$	(23,435)	$	(10,756)
Net income (loss) per share, basic	$	(4.89)	$	(2.86)
Net income (loss) per share, diluted	$	(4.89)	$	(2.86)
Weighted-average shares outstanding, basic	4,794,178		3,756,402
Weighted-average shares outstanding, diluted	4,794,178		3,756,402

See accompanying notes to Consolidated Financial Statements.

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Lightning eMotors, Inc.

Consolidated Statements of Stockholders’ Equity

(in thousands, except share data)

(Unaudited)

	Common Stock			Additional Paid-in Capital		Stockholders’ Accumulated Deficit		Total Stockholders’ Equity (Deficit)
	Shares	Par Value
Balance as of December 31, 2022	4,492,157	$	1	$	220,951	$	(166,394)	$	54,558
Exercise of stock options	6,744	—		7		—		7
Vesting of restricted stock units, net of taxes	5,604	—		(2)		—		(2)
Stock-based compensation expense	—	—		1,442		—		1,442
Conversion of convertible notes payable	1,147,943	—		8,567		—		8,567
Net loss	—	—		—		(23,435)		(23,435)
Balance as of March 31, 2023	5,652,448	$	1	$	230,965	$	(189,829)	$	41,137
Balance as of December 31, 2021	3,753,132	$	—	$	206,776	$	(181,564)	$	25,212
Exercise of stock options	1,222	—		6		—		6
Vesting of restricted stock units, net of taxes	3,321	—		—		—		—
Stock-based compensation expense	—	—		972		—		972
Net loss	—	—		—		(10,756)		(10,756)
Balance as of March 31, 2022	3,757,675	$	—	$	207,754	$	(192,320)	$	15,434

See accompanying notes to Consolidated Financial Statements.

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Lightning eMotors, Inc.

Consolidated Statements of Cash Flows

(in thousands)

(Unaudited)

	Three Months Ended March 31,
	2023		2022
Cash flows from operating activities
Net income (loss)	$	(23,435)	$	(10,756)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	532		361
Provision for doubtful accounts	961		48
Provision for inventory obsolescence and write-downs	3,256		95
Gain on extinguishment of debt	(2,965)		—
Change in fair value of warrant liability	(6)		(188)
Change in fair value of earnout liability	(406)		(6,172)
Change in fair value of derivative liability	(39)		(2,555)
Stock-based compensation	1,442		972
Amortization of debt discount	2,171		2,119
Non-cash impact of operating lease right-of-use asset	324		267
Changes in operating assets and liabilities:
Accounts receivable	(1,963)		213
Inventories	(3,178)		(2,785)
Prepaid expenses and other assets	1,695		80
Accounts payable	(2,736)		(898)
Accrued expenses and other liabilities	5,496		3,057
Net cash used in operating activities	(18,851)		(16,142)
Cash flows from investing activities
Purchase of property and equipment	(1,673)		(2,024)
Net cash used in investing activities	(1,673)		(2,024)
Cash flows from financing activities
Payments on finance lease obligations	(45)		(15)
Proceeds from exercise of stock options	7		6
Tax withholding payment related to net settlement of equity awards	(2)		—
Net cash (used in) provided by financing activities	(40)		(9)
Net (decrease) increase in cash	(20,564)		(18,175)
Cash - Beginning of period	56,011		168,538
Cash - End of period	$	35,447	$	150,363
Supplemental cash flow information - Cash paid for interest	$	381	$	113
Significant noncash transactions
Conversion of convertible notes for common stock	$	8,567	$	—
Property and equipment included in accounts payable and accruals	(223)		387
Finance lease right-of-use asset in exchange for a lease liability	—		183

See accompanying notes to Consolidated Financial Statements.

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Lightning eMotors, Inc.

Notes to Consolidated Financial Statements

(in thousands, except share data)

(Unaudited)

Note 1 – Description of Business and Basis of Presentation

Lightning eMotors, Inc. (the “Company”, “Lightning”) designs and manufactures zero-emission vehicles (“ZEV”) and charging infrastructure solutions for commercial fleets, large enterprises, original equipment manufacturers, and governments. The Company’s product offerings range from electrified cargo vans, transit and shuttle buses, school buses, specialty work trucks, ambulances, mobile and stationary chargers and electric powertrains for school buses, transit buses and motorcoaches. The Company operates predominately in the United States.

On May 6, 2021, GigCapital3, Inc. (“Gig”), consummated the merger pursuant to the Business Combination Agreement, dated December 10, 2020, by and among Project Power Merger Sub, Inc., a wholly-owned subsidiary of Gig incorporated in the State of Delaware, and Lightning Systems, Inc., a Delaware corporation (“Lightning Systems”) (the “Business Combination”). On May 6. 2021, and in connection with the closing of the Business Combination, Gig changed its name to Lightning eMotors, Inc.

The accompanying consolidated financial statements have been prepared in accordance with U.S. Generally Accepted Accounting Principles (“GAAP”) and pursuant to the regulations of the U.S. Securities and Exchange Commission (“SEC”). The unaudited financial information reflects, in the opinion of management, all adjustments, consisting of normal recurring adjustments, considered necessary for a fair statement of the Company’s financial position, results of operations and cash flows for the periods indicated. The results reported for the interim period presented are not necessarily indicative of results that may be expected for the full year. These consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022.

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. Intercompany accounts and transactions have been eliminated.

Reverse Stock Split

The Company effected a 1-for-20 reverse stock split (the “Reverse Stock Split”) of the Company’s issued and outstanding shares of common stock, par value $0.0001 per share, effective as of 5:00 p.m. Eastern Time on April 27, 2023. As a result of the Reverse Stock Split, every twenty shares of common stock issued and outstanding were automatically reclassified into one share of common stock. The Reverse Stock Split did not reduce the number of authorized shares of common stock of 250,000,000, or change the par value of the common stock. All outstanding options, warrants, restricted stock units and similar securities entitling their holders to receive or purchase shares of common stock were adjusted as a result of the Reverse Stock Split, as required by the terms of each security. All share and per share amounts were retroactively adjusted for all periods presented to give effect to this reverse stock split, including reclassifying an amount equal to the reduction in par value of the Company’s common stock to additional paid-in capital. See Note 14 for additional information.

Liquidity and Capital

As of March 31, 2023, the Company had $35,447 in cash and cash equivalents. For the three months ended March 31, 2023, the net loss of the Company amounted to $23,435. Cash used in operating activities was $18,851 for the three months ended March 31, 2023. The Company had positive working capital of $82,234 as of March 31, 2023. The current and historical operating cash flows, current cash and working capital balances, and forecasted obligations of the Company were considered in connection with management’s evaluation of the Company’s ongoing liquidity.

The Company has suffered recurring losses from operations. The continuation of the Company as a going concern is dependent upon the Company attaining and maintaining profitable operations and/or raising additional capital from public offerings, debt financings or other capital markets transactions, collaborations or licensing arrangements. There can be no assurance that the Company will be successful in raising additional capital or that such capital, if available, will be on terms that are acceptable to the Company.

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The Company has secured and intend to employ various strategies to obtain the required funding for future operations such as accessing capital through the Company's ELOC Agreement with Lincoln Park Capital, LLC. However, the ability to access the ELOC Agreement is dependent on common stock trading volumes and the market price of the Company's common stock, which cannot be assured, and as a result cannot be included as sources of liquidity for the Company's ASC 205-40 analysis. As of March 31, 2023 and through the date of this filing, the Company has not sold any shares of common stock to Lincoln Park under the ELOC Agreement.

If capital is not available to the Company when, and in the amounts needed, the Company could be required to delay, scale back, or abandon some or all of the Company's development programs and operations, which could materially harm the Company's business, financial condition and results of operations. The result of the Company's ASC 205-40 analysis, due to uncertainties discussed above, there is substantial doubt about the Company's ability to continue as a going concern through the next twelve months from the date of issuance of these consolidated financial statements.

These consolidated financial statements have been prepared by management in accordance with GAAP and this basis assumes that the Company will continue as a going concern, which contemplates the realization of assets and the satisfaction of liabilities and commitments in the normal course of business.

Note 2 – Summary of Significant Accounting Policies

Use of estimates

The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. The Company’s most significant estimates and judgments involve deferred income taxes, provision for credit losses, warranty liability, write downs and write offs of obsolete and damaged inventory and valuations of share-based compensation, warrant liability, convertible note derivative liability and earnout share liability. Management bases its estimates on historical experience and on various other assumptions believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from those estimates, and such differences could be material to the Company’s financial statements.

Segment information

ASC 280, Segment Reporting, defines operating segments as components of an enterprise where discrete financial information is available that is evaluated regularly by the chief operating decision-maker (“CODM”) in deciding how to allocate resources and in assessing performance. The Company operates as a single operating segment. The Company’s CODM is the Chief Executive Officer, who has ultimate responsibility for the operating performance of the Company and the allocation of resources. The CODM uses Company forecasts, a financial and operations dashboard, and cash flows as the primary measures to manage the business and does not segment the business for internal reporting or decision making.

8

Concentrations of credit risk

As of March 31, 2023, two customers accounted for 31% and 18% of the Company’s total accounts receivable. As of December 31, 2022, two customers accounted for 40% and 25% of total accounts receivable. The net sales to the following customers comprised more than 10% of revenues for the periods presented.

	Three Months Ended March 31,
	2023				2022
	Net Sales		% of Revenue		Net Sales		% of Revenue
Customer A	$	830	23	%	$	—	—	%
Customer B	788		22	%	—		—	%
Customer C	—		—	%	1,478		27	%
Customer D	—		—	%	1,965		36	%
Customer E	—		—	%	720		13	%
Total of customers with sales greater than 10%	$	1,618	45	%	$	4,163	76	%
Total of customers with sales less than 10%	1,948		55	%	1,249		24	%
Gross Revenue	$	3,566	100	%	$	5,412	100	%
Customer refunds(1)	(2,255)				—
Total Revenue, net of customer refunds	$	1,311			$	5,412

(1)    Customer refunds are related to the recall for certain 2021-2022 model year FE4-129 vehicles (“ZEV4”) that were manufactured with Romeo Power Systems, Inc (“Romeo”) battery packs. See section “Revenue Recognition” below for more detail concerning the accounting treatment and the section “Warranties and Recall Campaigns” for more detail on the recall.

Concentrations of supplier risk

As of March 31, 2023, one supplier accounted for 21% of the Company’s total accounts payable. As of December 31, 2022, two suppliers accounted for 20% and 15% of the Company’s total accounts payable. For the three months ended March 31, 2023, two suppliers accounted for 18% and 14% of inventory purchases. For the three months ended March 31, 2022, one supplier accounted for 13% of inventory purchases.

Cash and cash equivalents

Cash and cash equivalents include cash held in banks and in money market funds. The Company’s cash and cash equivalents are placed with high-credit-quality financial institutions and issuers, and at times exceed federally insured limits. To date, the Company has not experienced any credit loss relating to its cash and cash equivalents. The carrying value of the cash equivalents approximates fair value, which represents a Level 1 input.

Accounts receivable

Accounts receivable are recorded at invoiced amounts, net of discounts, and allowances. The Company grants credit in the normal course of business to its customers. The Company periodically performs credit analyses and monitors the financial condition of its customers to reduce credit risk. The Company reduces the carrying value for estimated uncollectible accounts based on a variety of factors including the length of time receivables are past due, economic trends and conditions affecting the Company’s customer base, and historical collection experience. Specific provisions are recorded for individual receivables when the Company becomes aware of a customer’s inability to meet its financial obligations. The

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Company writes off accounts receivable when they are deemed uncollectible. The following table details the change in the allowance for credit losses for the periods indicated:

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	2,028	$	3,349
Credit loss expense	961		48
Deductions	—		—
Balance at end of period	$	2,989	$	3,397

Inventories

Inventories consist of raw materials, work in progress, and finished goods and are stated at the lower of cost or net realizable value, with cost determined on the average cost method. A valuation adjustment is made to inventory for any excess, obsolete or slow-moving items based on management’s review of on-hand inventories compared to historical and estimated future sales and usage profiles.

Property and equipment

Property and equipment is stated at cost, less accumulated depreciation. Depreciation is provided using the straight-line method over the estimated useful asset lives. Leasehold improvements are stated at cost and amortized on the straight-line basis over their estimated economic useful lives or the lease term, whichever is shorter. Costs of enhancements or modifications that substantially extend the capacity or useful life of an asset are capitalized and depreciated accordingly. Ordinary repairs and maintenance are expensed as incurred. Depreciation is included in the consolidated statements of operations in “Cost of revenues”, “Research and development” and “Selling, general and administrative.” When property is retired or otherwise disposed of, the cost and accumulated depreciation are removed from the consolidated balance sheets and the resulting gain or loss, if any, is reflected in “Other income, net.” The estimated useful lives of the Company’s major classes of property and equipment are as follows:

Major Class of Property and Equipment	Estimated Useful Lives
Machinery and equipment	7 years
Vehicles	5 years
Leasehold improvements	5 years
Computer equipment	3 years
Software	3 years
Furniture and fixtures	7 years

Impairment of long-lived assets

Long-lived assets to be held and used in the Company’s operations are evaluated for impairment when events or circumstances indicate the carrying value of a long-lived asset or asset group is less than the undiscounted cash flows from its use and eventual disposition over its remaining economic life. The Company assesses recoverability by comparing the sum of projected undiscounted cash flows from the use and eventual disposition over the remaining economic life of a long-lived asset or asset group to its carrying value, and records a loss from impairment if the carrying value is more than its undiscounted cash flows. Assets or asset groups to be abandoned or from which no future benefit is expected are written down to zero in the period it is determined they will no longer be used and are removed entirely from service. There were no impairments of long-lived assets recognized during the three months ended March 31, 2023 and 2022.

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Revenue recognition

Revenue Summary

The following table disaggregates revenue by major source:

	Three Months Ended March 31,
	2023		2022
ZEVs	$	3,222	$	5,179
Other	344		233
Gross Revenue	$	3,566	$	5,412
Customer refunds(1)	(2,255)		—
Total Revenue, net of customer refunds	$	1,311	$	5,412

(1) Customer refunds are related to the recall for ZEV4 vehicles that were manufactured with Romeo battery packs.

The Company manufactures and sells ZEVs, such as delivery vans and buses. The Company manufactures ZEVs by removing the internal combustion engine and certain associated components (collectively, “decontented parts”) and installing and integrating its internally-developed, zero-emission powertrain into a vehicle chassis supplied by original equipment manufacturer (“OEM”) partners or from the customer. At times, the Company also installs and integrates its zero-emission powertrains into a used vehicle chassis supplied by the customer (“repower”).

The Company recognizes revenue at a point in time when its performance obligation has been satisfied and control of the ZEV or zero-emission powertrain is transferred to the customer, which generally aligns with shipping terms. Contract shipping terms include ExWorks (“EXW”), “FOB Shipping Point” and “FOB Destination” all as defined in the Incoterms. Under EXW (meaning the seller fulfills its obligation to deliver when it makes goods available at its premises, or another specified location, for the buyer to collect), the performance obligation is satisfied and control is transferred at the point when the customer is notified that the ZEV is available for pickup. Under “FOB Shipping Point,” control is transferred to the customer at the time the good is transferred to the shipper and under “FOB Destination,” at the time the good is delivered to a customer’s specified delivery location. At times, the Company sells ZEVs that require additional upfitting from a third party before the final sale to the customer. The Company is acting as the principal in such transactions and revenue is recognized on a gross basis.

Other revenue primarily includes the sale of stand-alone zero-emission powertrains, charging systems, engineering consulting services, telematics and analytics subscription services and decontented parts. Revenue for zero-emission powertrains, chargers and decontented parts is generally recognized based on contract shipping terms. At times, chargers may be drop shipped directly to the customer from the manufacturer, in which revenue is recognized at the time of shipment. The Company is acting as the principal in such transactions and revenue is recognized on a gross basis. Services are recognized as revenue over time as either percentage of completion (i.e. engineering service contracts) or as the service is transferred to the customer (i.e. telematics and analytics subscription services).

The Company made an accounting policy election to account for any shipping and handling costs that occur after control has transferred to the customer as fulfillment costs that are accrued to cost of revenues at the time control transfers. Shipping and handling costs billed to customers are initially recorded in deferred revenue and recognized as revenue once shipping is complete.

The Company often applies for governmental funding programs, including California’s Hybrid and Zero Emission Truck and Bus Voucher Incentive Project (“HVIP”), on behalf of its customers for ZEV sales. Generally, as a condition of the program, the amount billed to the customer must be reduced by the amount that will be funded by the government program, and the Company will receive the funds directly from the government program. However, the discount to the customer is contingent upon the Company’s receipt of the funding. Revenue is recognized on the gross amount of the ZEV at the time substantially all of the conditions of the government program required of the Company have been met and control of the ZEV has transferred to the customer based on shipping terms.

The following economic factors affect the nature, amount, timing, and uncertainty of the Company’s revenue and cash flows as indicated:

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•Type of customer: The Company’s sales are directly to commercial fleet customers, OEMs, governments and dealers.

•Type of contract: Sales contracts are for goods or services. The majority of contracts are short term (i.e., less than or equal to one year in duration).

Significant Payment Terms

None of the Company’s contracts have a significant financing component. Any cash that is received prior to revenue recognition is deferred as deferred revenue (a contract liability) until the good is delivered or service is rendered. Payment terms are identified when the contract has commercial substance and collectability of consideration is probable. The Company generally utilizes payment terms of a twenty percent deposit once a contract is executed with the remainder due upon receipt.

Contract Liabilities

Contract liabilities relate to payments received in advance of performance obligations under the contract and are realized when the associated revenue is recognized under the contracts. The Company’s contract liabilities consist of customer deposits and deferred revenue, of which current amounts are included in “Accrued expenses and other current liabilities” and long-term amounts are included in “Other long-term liabilities” on the consolidated balance sheets. Changes in contract liabilities are as follows:

Balance as of December 31, 2022	$	794
Revenues recognized	(520)
Increase due to billings	623
Balance as of March 31, 2023	$	897

Returns and Refunds

Based on our standard terms and conditions, consideration paid for goods and/or services that customers purchase from the Company are nonrefundable. Therefore, at the time revenue is recognized, the Company does not estimate expected refunds for goods or services, nor does the Company exclude any such amounts from revenue.

However, during the quarter ended March 31, 2023 and as special consideration to those customers impacted by the Romeo battery recall, the Company extended an offer to allow a return and refund for the affected ZEV4s. The Company applied a reserve for estimated refunds based on known pending refunds and reduced sales in the current quarter accordingly. The Company initially recorded, on a gross basis, a refund liability in the amount of $5,037 and inventory in the amount of $2,171. The total refund liability associated with ZEV4 recalls was $3,228 as of March 31, 2023, which is included in accrued expenses and other current liabilities on the consolidated balance sheets. In some instances, the refund paid to customers exceeded the original transaction price and value of goods to be received (“Accommodation”), representing consideration payable to the customer. The Company recorded the Accommodation as an asset and will derecognize the asset as a reduction to the future revenues that will be recognized from orders placed by that customer, which were associated with the Accommodation. During the quarter ended March 31, 2023, the Company recorded an Accommodation in the amount of $611 and this amount is included in prepaid expenses and other current assets on the consolidated balance sheets. The Company expects the Accommodation asset to be derecognized over the remainder of the year ended 2023 as orders associated with the Accommodation are completed and gross revenue is recognized.

Transaction Price

The transaction price of a contract is the amount of consideration to which the Company expects to be entitled in exchange for transferring promised goods to a customer. Transaction prices do not include amounts collected on behalf of third parties (e.g., sales taxes). Sales taxes collected on sales are recorded as a sales tax liability and are included in “Accrued expenses and other current liabilities.”

To determine the transaction price of a contract, the Company considers its customary business practices and the terms of the contract. For the purpose of determining transaction prices, the Company assumes that the goods and/or services will be transferred to the customer as promised in accordance with existing contracts and that the contracts will not be canceled,

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renewed, or modified. The Company’s revenue terms do not include retrospective or prospective volume discounts, rights of return, rebates, performance bonuses or other forms of variable consideration.

The Company’s contracts with customers have fixed transaction prices that are denominated in U.S. dollars and payable in cash.

Future Performance Obligations

The Company has applied the practical expedient to exclude the value of remaining performance obligations for (i) contracts with an original term of one year or less and (ii) contracts for which the Company recognizes revenue in proportion to the amount it has the right to invoice for services performed (i.e. analytical data subscription services).

As of March 31, 2023, the Company had remaining performance obligations related to a non-cancellable (other than for a breach by the Company) minimum-quantity purchase commitment. The customer is obligated to purchase a fixed number of ZEVs through December 31, 2023. The Company estimates that the future revenues associated with this contract (based on estimated orders from the customer) will be $10,500 in 2023. The timing of the revenue associated with these estimates will change if the ZEVs are commissioned and/or shipped subsequent to the year in which they were ordered, as revenue will not be recognized until control of the ZEV transfers to the customer based on the purchase order shipping terms.

As of March 31, 2023, the Company also had $206 of remaining performance obligations related to unsatisfied extended warranty performance obligations the Company expects to recognize ratably from approximately September 2027 through August 2030.

Costs to Obtain or Fulfill a Contract with a Customer

The Company has elected the practical expedient to expense contract acquisition costs, which consist of sales commissions, which are reported within “Selling, general and administrative” expenses.

Warranties and Recall Campaigns

Warranties

All ZEVs that customers purchase from the Company are covered by five-year and 60-thousand-mile limited product warranties. At the time revenue is recognized, the Company estimates the cost of expected future warranty claims and accrues estimated future warranty costs based upon the history of warranty claims. The Company periodically reviews the adequacy of its product warranties and adjusts, if necessary, the warranty estimate and accrued warranty liability for actual historical experience. The warranty liability is included in “Accrued expenses and other current liabilities” and the cost of warranties is included in “Cost of revenues.”

At times, the Company may sell its ZEVs with an extended product warranty, with coverage beyond the five-year and 60-thousand-mile limited standard warranty. The Company considers these extended warranties to be separate performance obligations. The consideration allocated to the extended warranty is deferred and recognized over the term of the extended warranty. The Company’s deferred revenue associated with extended warranties is currently all classified as long-term within “Other long-term liabilities.”

Recall Campaigns

The Company records product recall reserves when a liability is probable and the related amounts are reasonably estimable.

On December 16, 2022, the Company initiated a voluntary recall for certain 2021-2022 model year Lightning eMotors ZEV4 vehicles due to multiple software and hardware discrepancies internal to the Romeo battery packs installed in the ZEV4 series vehicles. The affected vehicles may fail to operate in cold temperatures, fail to start, or may lose traction power while driving, increasing the risk of an accident. Romeo has been formally notified of the recall; however, Romeo has not reached a solution to honor their battery warranty. See Note 13 under the section “Legal Proceedings”. The Company’s current remedy is to either replace the ZEV4 manufactured with Romeo battery packs with updated ZEV4 models manufactured with Proterra battery packs or to refund full value of the purchase price to the customer. The Company will seek to recover the costs and expenses associated with the recall from Romeo.

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On March 27, 2023, the Company initiated a voluntary recall for certain model year 2020 FT3-43, 2019-2022 FT3-86, 2020 FE4-86 and 2019-2021 FE4-129 vehicles equipped with eMatrix battery packs. Defective structural welds and internal radiator leaks have been found in the battery packs which may result in isolation faults and cell imbalances. The affected vehicles may lose traction power, increasing the potential for collisions or experience a thermal runaway which could result in vehicle fires. The Company is currently working with eMatrix, the battery manufacturer, to develop a remedy for the structural welds and internal radiator leaks. Because the remedy is still being developed, the Company is unable to reasonably estimate a range of the potential losses associated with the recall.

Fair value, measurements, and financial instruments

A fair value hierarchy was established that prioritizes fair value measurements based on the types of inputs used for the various valuation techniques (market approach, income approach, and cost approach). The Company’s financial assets and liabilities are measured using inputs from the three levels of the fair value hierarchy. The three levels of the hierarchy and the related inputs are as follows:

•Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the Company can access at the measurement date.

•Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data.

•Level 3: Significant unobservable inputs that reflect the Company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

An asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs. Assets and liabilities measured at fair value are based on one or more of the following three valuation techniques:

•Market approach: Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.

•Cost approach: Amount that would be required to replace the service capacity of an asset (replacement cost).

•Income approach: Techniques to convert future amounts to a single present value amount based upon market expectations (including present value techniques, option pricing and excess earnings models).

The Company believes its valuation methods are appropriate and consistent with other market participants, however, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. The Company’s recurring fair value measurements categorized within Level 3 discussed below contain significant unobservable inputs. A change in those significant unobservable inputs could result in a significantly higher or lower fair value measurement at the reporting date.

The Company’s financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable, accrued liabilities, warrant liabilities, long-term debt, derivative liabilities and earnout liabilities. The carrying value of cash, accounts receivable, accounts payable, and accrued liabilities approximate fair value because of the short-term nature of those instruments.

Long-term debt is not presented at fair value on the consolidated balance sheets, as it is recorded at carrying value, net of unamortized debt discounts. However, the 7.5% $100,000 convertible senior note (the “Convertible Note”) has an embedded conversion option accounted for as a derivative liability, which is presented at fair value on the consolidated balance sheets. The fair value of the Convertible Note, including the conversion option, was $49,167 and $58,155 as of March 31, 2023 and December 31, 2022, respectively. The Company’s term note and working capital facility (“Facility”) had an outstanding term note with a principal amount of $3,000 as of both March 31, 2023 and December 31, 2022 and a fair value of $3,106 and $3,125 as of March 31, 2023 and December 31, 2022, respectively.

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The following tables set forth by level within the fair value hierarchy the Company’s financial assets and liabilities that were measured at fair value on a recurring basis in the consolidated balance sheets.

	Level 1		Level 2		Level 3
As of March 31, 2023
Financial assets
Cash equivalents	$	31,768	$	—	$	—
Financial Liabilities
Warrant liability	$	—	$	—	$	54
Derivative liability	—		—		26
Earnout liability	—		—		1,859
As of December 31, 2022
Financial assets
Cash equivalents	$	51,351	$	—	$	—
Financial Liabilities
Warrant liability	$	—	$	—	$	60
Derivative liability	—		—		78
Earnout liability	—		—		2,265

As of March 31, 2023 and December 31, 2022, the Company had cash equivalents held in a money market account. The Company has concluded that due to the highly liquid nature of the money market account, the carrying value approximates fair value, which represents a Level 1 input.

As a result of the Business Combination, the Company assumed the liability associated with the Gig warrants. The Company accounts for the warrants as liabilities at fair value with subsequent changes in fair value recorded in the statement of operations for each reporting period. The fair value is determined using the Black-Scholes-Merton option-pricing model (“BSM”) where the share price input represents the Company’s stock price as of the valuation date. The BSM is a commonly-used mathematical model for pricing an option or warrant. In particular, the model estimates the variation in value over time of financial instruments. The fair value measurements are considered Level 3 measurements within the fair value hierarchy.

The Company estimates the fair value of its derivative liability associated with the Convertible Note at each reporting date, as well as at each conversion date. The Convertible Note and embedded conversion option are valued using a Binomial Lattice Model designed to capture incremental value attributed to the conversion options in addition to the value of the Convertible Note. The value of the Convertible Note without the conversion feature is valued utilizing the income approach, specifically the discounted cash flow method. Cash flows are discounted utilizing the U.S. Treasury rate and the credit spread to estimate the appropriate risk-adjusted rate. The conversion feature utilizes the Company’s stock price as of the valuation date as the starting point of the valuation. A Binomial Lattice Model is used to estimate a credit spread by solving for a premium to the U.S. Treasury rate that produces a value of the Convertible Note. As of issuance, the value of the Convertible Note and warrants related to the Convertible Note were set to equal $100,000 to solve for the credit spread which is then updated quarterly. The fair value measurements are considered Level 3 measurements within the fair value hierarchy.

As a result of the Business Combination, the Company recognized additional earnout shares with performance conditions as a liability measured at fair value with subsequent changes in fair value recorded in the consolidated statement of operations for each reporting period. The earnout shares are valued using the Company’s stock price as of the valuation date. The valuation methodology used is a Monte Carlo Simulation model (“MCS”) utilizing a Geometric Brownian motion process to capture meeting the various performance conditions. MCS is a technique that uses a stochastic process to create a range of potential future outcomes given a variety of inputs. Stochastic processes involve the use of both predictive assumptions (e.g., volatility, risk-free rate) and random numbers to create potential outcomes of value. MCS assumes that stock prices take a random walk and cannot be predicted; therefore, random number generators are used to create random outcomes for stock prices. The fair value measurements are considered Level 3 measurements within the fair value hierarchy.

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The Company’s non-financial assets, which primarily consist of property and equipment, are not required to be carried at fair value on a recurring basis and are reported at carrying value. However, on a periodic basis or whenever events or changes in circumstances indicate that their carrying value may not be fully recoverable, these along with other non-financial instruments are assessed for impairment and, if applicable, written down to and recorded at fair value.

Beneficial conversion features

The Company followed the beneficial conversion feature guidance in ASC 470-20, Debt with Conversion and Other Options, which applies to redeemable convertible preferred stock and convertible debt. A beneficial conversion feature is defined as a nondetachable conversion feature that is in the money at the commitment date.

The beneficial conversion feature guidance requires recognition of the conversion option’s in-the-money portion, the intrinsic value of the option, in equity, with an offsetting reduction to the carrying amount of the instrument. The resulting discount is amortized as interest over the life of the instrument. When there is a subsequent change to the conversion ratio based on a future occurrence, the new conversion price may trigger the recognition of an additional beneficial conversion feature on occurrence.

As a result of the Business Combination, the unamortized portion of the beneficial conversion feature was recorded to additional paid-in capital.

Stock-based compensation

The Company accounts for share-based compensation in accordance with ASC 718, Compensation – Stock Compensation, under which share based payments that involve the issuance of common stock to employees and non-employees and meet the criteria for equity-classified awards are recognized in the financial statements as share-based compensation expense based on the fair value on the date of grant. The Company issues stock option awards and restricted stock unit awards to employees and non-employees.

The Company utilizes the Black-Scholes model to determine the fair value of the stock option awards, which requires the input of subjective assumptions. These assumptions include estimating (a) the length of time grantees will retain their vested stock options before exercising them for employees and the contractual term of the option for non-employees (“expected term”), (b) the volatility of the Company’s common stock price over the expected term, (c) expected dividends, and (d) the fair value of a share of common stock prior to the Business Combination. After the closing of the Business Combination, the Company’s board of directors determined the fair value of each share of common stock underlying stock-based awards based on the closing price of the Company’s common stock as reported by the NYSE on the date of grant. The Company has elected to recognize the adjustment to share-based compensation expense in the period in which forfeitures occur.

The assumptions used in the Black-Scholes model are management’s best estimates, but the estimates involve inherent uncertainties and the application of management judgment (see Note 10). As a result, if other assumptions had been used, the recorded share-based compensation expense could have been materially different from that recorded in the financial statements.

Warrants and Warrant liabilities

As a result of the Business Combination, the Company assumed the liability associated with the Gig warrants. The Company accounts for the warrants for shares of the Company’s common stock that are not indexed to its own stock as liabilities at fair value on the consolidated balance sheets. The warrants are subject to remeasurement at each balance sheet date and any change in fair value is recognized as a “(Gain) loss from change in fair value of warrant liabilities” in the consolidated statements of operations. The Company will continue to adjust the liability for changes in fair value until the earlier of the exercise or expiration of the common stock warrants. At that time, the portion of the warrant liability related to the common stock warrants will be reclassified to “Additional paid-in capital”.

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Research and development

Research and development costs are primarily expensed when incurred and consist of personnel-related expenses including salaries, benefits, travel and stock-based compensation for personnel performing research and development activities; expenses related to materials, supplies and testing; and consulting and occupancy expenses. In addition, costs for certain property and equipment utilized for research and development are capitalized and depreciated to “Research and development” over the useful life of the asset based on the property and equipment policy discussed above.

Advertising

Advertising costs are expensed when incurred and are included in “Selling, general and administrative” expenses and total $214 and $116 for the three months ended March 31, 2023 and 2022, respectively.

Derivative Liability

The Company accounts for the embedded conversion feature of the Convertible Note as a derivative liability. Pursuant to ASC 815-15, Derivatives and Hedging – Embedded Derivatives, the embedded conversion feature meets all three criteria to be bifurcated and accounted for separately from the host instrument, i.e., the Convertible Notes. Because this feature meets all criteria of a derivative instrument, it was accounted for and recorded as a derivative liability at fair value on the Company’s balance sheet with subsequent changes in fair value recorded in the consolidated statement of operations each reporting period.

Earnout Liability

As a result of the Business Combination, the Company recognized additional earnout shares as a liability. Pursuant to ASC 805, Business Combinations, the initial fair value of the earnout shares was recorded as a liability with the offset going to additional paid-in capital and with subsequent changes in fair value recorded in the consolidated statement of operations for each reporting period. The following table provides a reconciliation of the beginning and ending balances for the earnout liability measured at fair value using significant unobservable inputs (Level 3):

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	2,265	$	83,144
(Gain) loss	(406)		(6,172)
Balance at end of period	$	1,859	$	76,972

Income taxes

Income taxes are accounted for using the asset and liability method which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the carrying amounts and the tax basis of other assets and liabilities. The Company provides for income taxes at the current and future enacted tax rates and laws applicable in each taxing jurisdiction. The Company uses a two-step approach for recognizing and measuring tax benefits taken or expected to be taken in a tax return and disclosures regarding uncertainties in income tax positions. The Company recognizes interest and penalties related to income tax matters in income tax expense in the consolidated statement of operations.

Earnings per share

Basic earnings (loss) per share (“EPS”) are computed by dividing net earnings (loss) by the weighted average number of common shares outstanding for the period. Diluted EPS attributable to common shareholders is computed by adjusting net earnings by the weighted average number of common shares and potential common shares outstanding (if dilutive) during each period. Potential common shares include shares issuable upon exercise of stock options and vesting of restricted stock awards. Anti-dilutive securities are excluded from diluted EPS.

The Company applies the treasury stock method to account for the dilutive impact of its options, warrants and restricted stock units and the if converted method for its Convertible Note.

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Recent accounting pronouncements issued and adopted

In June 2016, the Financial Accounting Standards Board issued Accounting Standards Update (“ASU”) 2016-13 related to the measurement of credit losses on financial instruments and has since modified the standard with several ASUs (collectively, the “credit loss standard”). The credit loss standard requires a financial asset (or a group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of the reported amount. The credit loss standard took effect for public entities for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. As amended in ASU 2019-10, for smaller reporting companies, the credit loss standard will take effect for fiscal years beginning after December 15, 2022, and for interim periods within those fiscal years. The adoption of this ASU will require a cumulative-effect adjustment to accumulated deficit as of the beginning of the first reporting period in which the guidance is effective (that is, a modified-retrospective approach). The Company adopted this standard on January 1, 2023, and this ASU did not have a material impact to the Company’s financial statements.

Note 3 – Inventories

At March 31, 2023 and December 31, 2022, inventories consist of the following:

	March 31, 2023		December 31, 2022
Raw materials	$	27,866	$	30,763
Work in progress	4,104		3,357
Finished goods	15,018		12,946
Total inventories	$	46,988	$	47,066

The Company reduced the cost of certain inventory to net realizable value by $3,256 and $95 during the three months ended March 31, 2023 and 2022, respectively, which was recorded in “Cost of revenues.”

Note 4 – Prepaid Expenses and Other Current Assets

At March 31, 2023 and December 31, 2022, prepaid expenses and other current assets consist of the following:

	March 31, 2023		December 31, 2022
Vendor deposits	$	4,473	$	4,447
Prepaid insurance	1,021		2,367
Other prepaid expenses	2,309		2,559
Other current assets	23		28
Total prepaid expenses and other current assets	$	7,826	$	9,401

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Note 5 – Property and Equipment

Cost and accumulated depreciation as of March 31, 2023 and December 31, 2022 are as follows:

	March 31, 2023		December 31, 2022
Machinery and equipment	$	3,173	$	2,945
Vehicles	3,988		3,634
Leasehold improvements	3,355		3,660
Computer equipment	702		688
Software	11		11
Furniture and fixtures	1,086		969
Capital projects in progress	3,360		2,317
Total cost	15,675		14,224
Accumulated depreciation and amortization	(3,200)		(2,705)
Total property and equipment, net	$	12,475	$	11,519

Depreciation and amortization expense associated with property and equipment is as follows for the periods indicated:

	Three Months Ended March 31,
	2023		2022
Cost of revenues	$	159	$	85
Research and development	15		92
Selling, general and administrative	320		179
Total depreciation and amortization expense	$	494	$	356

Note 6 – Accrued Expenses and Other Current Liabilities

At March 31, 2023 and December 31, 2022, accrued expenses and other current liabilities consist of the following:

	March 31, 2023		December 31, 2022
Accrued professional services	$	1,077	$	597
Accrued interest	1,684		806
Accrued payroll and benefits	2,197		1,451
Other accrued expense	1,072		1,436
Warranty liability	1,851		1,268
Refund liability	3,228		—
Customer deposits	530		427
Deferred revenue	92		106
Current portion of finance lease obligation	181		179
Total accrued expenses and other current liabilities	$	11,912	$	6,270

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Changes in warranty liability (included in accrued expenses and other current liabilities) were as follows:

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	1,268	$	994
Charge for the period	558		252
Utilized during the period	25		(55)
Balance at end of period	$	1,851	$	1,191

Note 7 – Notes Payable

Notes payable as of March 31, 2023 and December 31, 2022 consist of the following:

	March 31, 2023		December 31, 2022
Convertible Note	$	59,863	$	73,863
Facility	3,000		3,000
Total debt principal	62,863		76,863
Unamortized debt discount - Convertible Note	(10,086)		(14,735)
Unamortized debt discount - Facility	(22)		(25)
Total long-term debt	$	52,755	$	62,103

Convertible Note

In conjunction with the Business Combination, the Company entered into the 7.5% $100,000 Convertible Note and paid issuance costs of $5,000. The Convertible Note has a maturity date of May 15, 2024 and has semi-annual interest payments due May 15 and November 15 of each year starting on November 15, 2021. The Convertible Note has a conversion feature at a conversion price of $230.00 and warrants to purchase up to 434,782 shares of common stock for a per share price of $230.00. The Convertible Note has a mandatory conversion option that: a) is exercisable at the option of the Company on or after May 15, 2022; b) occurs when the Company’s stock price (1) is greater than 120% of the conversion price of $230.00, or $276.00 for 20 trading days in a period of 30 consecutive trading days and (2) the 30-day average daily trading volume during the applicable exercise period, i.e., consecutive 30 trading day period, is greater than or equal to $3,000; and c) the Company will make payments in accordance with the interest make-whole (defined below) amount in cash or issuance of additional shares of the Company’s common stock.

The interest make-whole amount means, with respect to the conversion of the Convertible Note, in an amount denominated in U.S. dollars, the sum of all regularly scheduled interest payments, if any, due on such Convertible Note on each interest payment date occurring after the conversion date for such conversion and on or before the maturity date; provided, however, that (A) for these purposes, the amount of interest due on the interest payment date immediately after such conversion date will be deemed to be the following amount: any accrued and unpaid interest, if any, at such conversion date, plus any remaining amounts that would be owed to, but excluding, the maturity date in respect of such Convertible Note, including all regularly scheduled interest payments; and (B) if such conversion date occurs after the Company has sent a mandatory conversion notice, then the interest make-whole amount for such conversion shall be the sum of all regularly scheduled interest payments, if any, due on such Convertible Note on each interest payment date occurring after the conversion date for such conversion to, but excluding, the maturity date.

If the Company incurs other unpermitted indebtedness, it is required to redeem the Convertible Notes in full including outstanding principal and accrued and unpaid interest, plus a prepayment premium equal to the amount of interest which would have accrued on the Convertible Notes through maturity (the “Redemption Feature”). In addition, the Company is required to issue to the holders a fixed number of warrants to purchase shares of Common Stock. The fixed number of warrants will be based on the principal balance of the Convertible Notes, divided by $230.00 (“Redemption Warrants”). The Redemption Warrants will be exercisable from the date of repayment of the Convertible Notes through the original maturity date of the Convertible Notes.

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If the number of outstanding shares of Common Stock is increased by a stock split or other similar event, the number of shares issuable on exercise of each warrant shall be increased proportionately and the exercise price shall be decreased proportionately. Consequently, if the number of outstanding shares of Common Stock is decreased by a reverse stock split, consolidation, combination or reclassification of shares of Common Stock or other similar event, the number of shares of Common Stock issuable on exercise of each warrant shall be decreased proportionately and the exercise price shall be increased proportionately.

The Company has identified certain embedded derivatives related to its Convertible Note. Since the Convertible Note has a conversion feature whereby the principal amount will convert into a variable number of shares based on the future trading price of the Company’s common stock, the conversion feature is recorded as a derivative liability. Therefore, the fair value of the convertible feature at inception on May 6, 2021 in the amount of $17,063 was recorded as a debt discount and an addition to “Derivative liability” on the consolidated balance sheets. The derivative liability is adjusted to fair value each reporting period, with the changes in fair value reported in “(Gain) loss from change in fair value of derivative liability” on the consolidated statements of operations.

During the year ended December 31, 2021, $12,137 of Convertible Notes were converted into 52,769 shares of the Company’s common stock. The Company recognized a gain on extinguishment of $2,194 in “Gain on extinguishment of debt” on the consolidated statement of operations associated with the difference between (1) the sum of the fair value of the common stock issued of $10,089 and cash paid for the remaining annual interest due May 2022 of $668 and (2) the sum of the carrying amount of the converted debt $7,966 and the fair value of the convertible note derivative liability of $4,985.

On November 21, 2022, the Company completed an exchange with certain holders of the Convertible Notes via privately negotiated exchange agreements, pursuant to which the holders agreed to exchange$14,000 in aggregate principal amount of the Company's outstanding Convertible Notes for 663,822 newly issued shares of the Company's common stock, par value $0.0001 per share, at a price of $21.00 per share. The Company recognized a gain on extinguishment of $2,921 in “Gain on extinguishment of debt” on the consolidated statement of operations associated with the difference between (1) the sum of the fair value of the common stock issued of $8,138 and (2) the sum of the carrying amount of the converted debt $11,021 and the fair value of the convertible note derivative liability of $38.

On February 10, 2023, the Company completed an exchange with a holder of the Convertible Notes via a privately negotiated exchange agreement, pursuant to which the holder agreed to exchange $3,500 in aggregate principal amount of the Company's outstanding Convertible Notes at 95% of par for 210,443 newly issued shares of the Company's common stock, par value $0.0001 per share, at a price of $15.80 per share. The Company recognized a gain on extinguishment of $46 in “Gain on extinguishment of debt” on the consolidated statement of operations associated with the difference between (1) the sum of the fair value of the common stock issued of $2,811 and (2) the sum of the carrying amount of the converted debt $2,850 and the fair value of the convertible note derivative liability of $8.

On March 15, 2023, the Company completed an exchange with certain holders of the Convertible Notes via privately negotiated exchange agreements, pursuant to which the holders agreed to exchange $10,500 in aggregate principal amount of the Company's outstanding Convertible Notes for 937,500 newly issued shares of the Company's common stock, par value $0.0001 per share, at a price of $11.20 per share. The Company recognized a gain on extinguishment of $2,919 in “Gain on extinguishment of debt” on the consolidated statement of operations associated with the difference between (1) the sum of the fair value of the common stock issued of $5,754 and (2) the sum of the carrying amount of the converted debt $8,669 and the fair value of the convertible note derivative liability of $5.

The following table provides a reconciliation of the beginning and ending balances for the Convertible Note derivative liability measured at fair value using significant unobservable inputs (Level 3):

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	78	$	17,418
(Gain) Loss	(39)		(2,555)
Change resulting from conversions	(13)		—
Balance at end of period	$	26	$	14,863

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The Convertible Note warrants are considered free-standing instruments and meet the criteria for equity classification because they are indexed to the Company’s own stock and provide a fixed number of shares. Therefore, the fair value of the Convertible Note warrants on May 6, 2021 in the amount of $14,522 was recorded as a debt discount and an addition to “Additional paid-in capital” on the consolidated balance sheets.

Interest expense for the three months ended March 31, 2023 and 2022 was $3,421 and $3,762, respectively, of which $1,254 and $1,647, respectively, related to contractual interest expense and $2,167 and $2,115, respectively, related to amortization of the discount.

Facility

The Facility provides for both term and working capital loans for borrowings up to $6,700 as of March 31, 2023. However, the Company’s Convertible Note requirements limit the Company’s permitted indebtedness to $5,000. Interest is payable quarterly on borrowings at a fixed annual rate of 15%. Borrowings under the Facility are secured by substantially all the Company’s assets, are subject to borrowing base limitations, and require the Company to meet certain covenants. The Facility borrowings, with a maturity date of October 21, 2024, were $3,000 as of March 31, 2023 and December 31, 2022. Interest expense related to the Facility was $118 and $118 for the three months ended March 31, 2023 and 2022, respectively.

Debt maturities

The total balance of all debt matures as follows:

Period Ending December 31,	Amount
2023 (remainder of the year)	$	—
2024	62,863
2025	—
Thereafter	—
Total	$	62,863

Note 8 – Leases

A contract is or contains a lease when, (1) the contract contains an explicitly or implicitly identified asset and (2) the customer obtains substantially all of the economic benefits from the use of that underlying asset and directs how and for what purpose the asset is used during the term of the contract in exchange for consideration. The Company assesses whether an arrangement is or contains a lease at inception of the contract. For all leases, other than those that qualify for the short-term recognition exemption, the Company recognizes as of the lease commencement date on the balance sheet a liability for its obligation related to the lease and a corresponding asset representing the Company’s right to use the underlying asset over the period of use.

The Company leases its manufacturing center, distribution center, and office space (collectively “Operating Facility”) and certain information technology (“IT”) equipment under non-cancelable operating leases. The Company also leases equipment utilized in the manufacturing process under non-cancelable financing leases. These financing leases include either a bargain purchase option or the equipment reverts ownership to the Company at the end of the lease term.

The Company assesses the expected lease term at lease inception and discounts the lease using a fully-secured, annual incremental borrowing rate (or rate implicit in the lease, if readily determinable), adjusted for time value corresponding with the expected lease term. The Company elected, for all classes of underlying assets, to not apply the balance sheet recognition requirements of ASC 842, Leases, to leases with a term of one year or less, and instead, recognize the lease payments in the income statement on a straight-line basis over the lease term. The Company also elected, for certain classes of underlying assets, to combine lease and non-lease components. The Company elected to combine lease and non-lease components for its Operating Facility, IT equipment and manufacturing equipment leases.

Right-of-use assets and lease liabilities as of March 31, 2023 and December 31, 2022 consist of the following:

22

	March 31, 2023				December 31, 2022
	Operating		Finance		Operating		Finance
Assets
Right-of-use assets, net (1)	$	7,411	$	855	$	7,735	$	893
Liabilities
Lease obligation - current portion (2)	$	1,734	$	181	$	1,649	$	179
Lease obligation - long-term portion (3)	7,262		573		7,735		619
Total lease obligations	$	8,996	$	754	$	9,384	$	798
Weighted average remaining lease terms (in years)	3.9		4.6		4.2		4.8
Weighted average discount rate	15%		4%		15%		4%

(1)Finance right-of-use assets, net are included in “Other assets” on the consolidated balance sheets.

(2)Finance lease obligation – current portion is included in “Accrued expenses and other current liabilities” on the consolidated balance sheets.

(3)Finance lease obligation – long-term portion is included in “Other long-term liabilities” on the consolidated balance sheets.

The Company’s lease cost is presented below. The Company does not have any short-term leases or leases with variable lease payments. The financing lease cost for the three months ended March 31, 2023 and 2022 was immaterial.

	Three Months Ended March 31,
	2023		2022
Operating Lease Cost
Cost of revenues	$	404	$	261
Research and development	76		308
Selling, general and administrative	183		78
Total operating lease cost	$	663	$	647

The maturities of the Company’s lease liabilities are as follows:

	March 31, 2023
	Operating		Finance
2023 (remainder of year)	$	2,186	$	154
2024	2,997		205
2025	3,043		160
2026	3,105		128
2027	517		82
Thereafter	—		84
Total future minimum lease payments	11,848		813
Less: imputed interest	(2,852)		(59)
Total maturities	$	8,996	$	754

Note 9 – Capital Structure

Equity Line of Credit (“ELOC”)

On August 30, 2022, the Company entered into the ELOC Agreement with Lincoln Park, pursuant to which Lincoln Park committed to purchase up to $50.0 million of shares of the Company’s common stock, subject to certain limitations and

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conditions set forth in the ELOC Agreement. The Company may not issue or sell any shares of common stock under the ELOC Agreement which, when aggregated with all other shares of common stock beneficially owned by Lincoln Park, would result in beneficial ownership of more than 9.99% of the Company’s outstanding shares of common stock.

Under the terms of the ELOC Agreement, the Company has the right, but not the obligation, to sell to Lincoln Park, shares of its common stock over the period commencing on or about August 30, 2022 (the “Closing Date”) and ending on the first day of the month following the 36-month anniversary of the Closing Date. Purchase notices for regular or accelerated purchases to Lincoln Park include share volume limitations and are at prevailing market prices as defined in the ELOC Agreement.

During the three months ended September 30, 2022 and concurrently with the signing of the ELOC Agreement, the Company issued 14,974 shares of its common stock to Lincoln Park as a commitment fee. The fair value of the shares issued for the commitment fee of $851 was recorded in "Selling, general, and administrative" expense on the Company's consolidated statement of operations.

As of March 31, 2023, the Company had not sold any common stock to Lincoln Park under the ELOC Agreement, other than the shares of common stock issued as a commitment fee.

Warrants

As of March 31, 2023, there are warrants outstanding convertible into 1,218,285 shares of common stock. In total, there are 14,999,970 public warrants convertible into 749,998 shares of common stock, 8,695,641 Convertible Note warrants convertible into 434,782 shares of common stock, and 670,108 private placement warrants convertible into 33,505 shares of common stock outstanding. Each warrant entitles the holder to purchase 1/20th of a share of common stock at a price of $230.00 per whole share, subject to adjustment as discussed below. The warrants will expire at 5:00 p.m., New York City time, on May 26, 2026, the fifth anniversary of the completion of the Company’s Business Combination, or earlier upon redemption or liquidation.

The private placement warrants are identical to the public warrants except that such private placement warrants will be exercisable for cash or on a cashless basis, at the holder’s option, and will not be redeemable by the Company, in each case so long as they are still held by the sponsor or its affiliates.

The Company may redeem the outstanding warrants (excluding the private placement warrants):

•in whole and not in part;

•at a price of $0.01 per warrant;

•upon a minimum of 30 days’ prior written notice of redemption, which the Company refers to as the 30-day redemption period; and

•if, and only if, the last reported sale price of the Company’s common stock equals or exceeds $360.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within a 30 trading day period ending on the third trading day prior to the date on which the Company sends the notice of redemption to the warrant holders.

The fair value of the private placement warrants on May 6, 2021 in the amount of $1,253 was recorded as a “Warrant liability” and a reduction to “Additional paid-in capital” on the consolidated balance sheets. The change in fair value at each reporting date was recognized in “(Gain) loss from change in fair value of warrant liabilities” on the consolidated statements of operations. The fair value of the Convertible Note warrants on May 6, 2021 in the amount of $14,522 was recorded as a debt discount and an addition to “Additional paid-in capital” on the consolidated balance sheets.

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The following table presents information for privately placed warrants that were assumed in the Business Combination:

	Number of Warrants(1)	Warrant Fair Value		Weighted Average Exercise Price		Weighted Average Remaining Life
Private warrants assumed through Business Combination
Outstanding at December 31, 2021	670,108	$	2,185	$	230.00	4.3
Change in fair value	—	(2,125)		—		—
Outstanding — December 31, 2022	670,108	60		230.00		3.4
Change in fair value	—	(6)		—		—
Outstanding — March 31, 2023	670,108	54		230.00		3.1

(1)     The 670,108 private placement warrants are convertible into 33,505 shares of common stock outstanding. Each warrant entitles the holder to purchase 1/20th of a share of common stock at a price of $230.00 per whole share, subject to adjustment.

Note 10 – Stock-Based Compensation

2021 Equity Incentive Plan

In connection with the Business Combination, the stockholders approved the 2021 Equity Incentive Plan (the “2021 Plan”). The 2021 Plan provides the Company the ability to grant incentive stock options, non-qualified stock options, restricted stock awards, stock appreciation rights, restricted stock units, performance units, performance shares, cash-based awards and other stock-based awards. The purpose of the 2021 Plan is to advance the interests of the Company and its stockholders by providing an incentive to attract, retain and reward persons for performing services and by motivating such persons to contribute to the growth and profitability of the Company and its subsidiaries. As of March 31, 2023, there were 889,712 shares reserved and 586,128 shares available for grant under the 2021 Plan.

Prior Lightning Systems 2019 Equity Incentive Plan

The legacy Lightning Systems 2019 Equity Incentive Plan (“2019 Plan”) provided for the grant of incentive stock options, non-qualified stock options, and other awards. As a result of the Business Combination, the 2019 Plan was superseded by the 2021 Plan; therefore, no further awards will be granted under the 2019 Plan. In connection with the Business Combination, awards outstanding were converted into an option exercisable for common stock of the Company based on the Exchange Ratio. As of March 31, 2023, there were 82,746 stock options previously granted and unexercised under the 2019 Plan, which remain subject to the terms and conditions of the 2019 Plan.

Compensation Expense

To date, the Company has issued stock option and restricted stock unit (“RSU”) awards. The Company recognizes stock-based compensation expense based on the fair value of the awards issued at the date of grant and amortized on a straight-line basis as the employee renders services over the requisite service period. Forfeitures are accounted for as they occur by

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reversing the expense previously recognized for non-vested awards that were forfeited during the period. The following table presents the stock-based compensation related to stock option and RSU awards for the periods presented:

	Three Months Ended March 31,
	2023		2022
Stock options expense
Cost of revenues	$	2	$	5
Research and development	6		9
Selling, general and administrative	197		192
Total stock options expense	$	205	$	206
Restricted stock units expense
Cost of revenues	$	87	$	54
Research and development	61		46
Selling, general and administrative	1,089		666
Total restricted stock units expense	$	1,237	$	766
Total stock-based compensation	$	1,442	$	972

The estimated unrecognized expense for stock options and RSUs not vested as of March 31, 2023, which will be recognized over the remaining requisite service period, is as follows:

Stock options unrecognized expense	$	1,907
Stock options weighted-average remaining requisite service period (in years)	2.0
Restricted stock units unrecognized expense	$	10,079
Restricted stock units weighted-average remaining requisite service period (in years)	2.4

Stock Option Awards

Stock option awards are issued to employees with an exercise price equal to the estimated fair market value per share at the date of grant and a term of 10 years. Stock option awards generally vest over 4 years. It is the Company’s policy to issue new shares upon option exercise. Changes in the Company’s stock options for the three months ended March 31, 2023 are presented in the table below.

	Number of Options	Weighted Average Exercise Price per Share		Aggregate Intrinsic Value (in thousands)		Weighted Average Remaining Life (in years)
Outstanding at January 1, 2023	138,091	$	45.60
Granted	—	—
Exercised	(6,744)	1.20
Forfeited	(206)	11.60
Expired	—	—
Outstanding at March 31, 2023	131,141	47.80		$	197	7.7
Vested and exercisable at March 31, 2023	60,487	78.40		130		7.2

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Changes in the status of the Company’s non-vested stock option awards for the three months ended March 31, 2023 are presented in the table below.

	Non-vested Shares Under Option	Weighted Average Grant Date Fair Value per Share
Non-vested at January 1, 2023	73,939	$	35.00
Granted	—	—
Vested	(3,080)	33.80
Forfeited	(206)	42.60
Non-vested at March 31, 2023	70,654	35.00

The aggregate intrinsic value of options exercised were $60 and $106 during the three months ended March 31, 2023 and 2022, respectively.

Restricted Stock Unit Awards

The Company grants RSU awards to employees that generally vest over 3 years. RSU awards are valued based on the closing market price of the Company’s common stock on the grant date.

	Number of RSUs	Weighted Average Grant Date Fair Value per Share
Outstanding at January 1, 2023	188,223	$	71.40
Granted	47,178	12.00
Vested	(5,753)	98.00
Forfeited	(8,784)	57.80
Outstanding at March 31, 2023	220,865	58.40

Other Employee Benefits - 401(k) Savings Plan

The Company has an employee-directed 401(k) savings plan (the “401(k) Plan”) for all eligible employees. Under the 401(k) Plan, employees may make voluntary contributions based on a percentage of their pretax income, subject to statutory limitations. The Company matches 100% for the first 3% of each employee’s contribution and 50% for the next 2% of each employee’s contribution. The Company’s cash contributions are fully vested upon the date of match. The Company made matching cash contributions of $257 and $165 for the three months ended March 31, 2023 and 2022, respectively.

Note 11 – Income Taxes

The provision for income taxes is recorded at the end of each interim period based on the Company’s best estimate of its effective income tax rate expected to be applicable for the full fiscal year. There is no provision for income taxes because the Company has incurred taxable losses since inception. The Company’s effective income tax rate was 0% for the three months ended March 31, 2023 and 2022 and the realization of any deferred tax assets is not more likely than not.

Note 12 – Earnings (Loss) per Common Share

Basic income or loss per common share is computed by dividing net income or loss by the weighted average number of common shares outstanding during the period. Diluted income or loss per common share is computed by dividing net income or loss by the weighted average number of common shares outstanding, plus the issuance of potentially dilutive common shares that could result from the exercise of outstanding stock options and warrants, vesting of restricted stock and conversion of convertible notes. No potentially dilutive common shares are included in the computation of any diluted per share amount when a loss is reported, which was the case for the three months ended March 31, 2023 and 2022. The Company applied the treasury stock method to account for the dilutive impact of its options, warrants and restricted stock units and the if-converted method for its Convertible Note.

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The following table reconciles the earnings (loss) and number of common shares used to calculate basic and diluted earnings per common share attributable to the Company’s shareholders:

	Three Months Ended March 31,
	2023		2022
Basic earnings per common share:
Net income (loss) - basic	$	(23,435)	$	(10,756)
Weighted shares outstanding - basic	4,794,178		3,756,402
Basic earnings (loss) per common share	$	(4.89)	$	(2.86)
Diluted earnings per common share:
Net income (loss) - basic	$	(23,435)	$	(10,756)
Net income (loss) - diluted	$	(23,435)	$	(10,756)
Weighted shares outstanding - basic	4,794,178		3,756,402
Weighted shares outstanding - diluted	4,794,178		3,756,402
Diluted earnings (loss) per common share	$	(4.89)	$	(2.86)

All potentially dilutive common shares in the following table were excluded from the computation of diluted loss per share for the three months ended March 31, 2023 and 2022 because including them would have had an anti-dilutive effect due to losses reported during those periods.

	Outstanding as of March 31,
	2023	2022
Convertible notes payable	260,273	382,012
Outstanding warrants	1,218,286	1,218,286
Stock options	131,141	157,285
Restricted stock units	220,865	51,414
Total anti-dilutive stock	1,830,565	1,808,997

Note 13 – Commitments and Contingencies

Firm Purchase and Other Commitments

The Company is party to firm purchase commitments with some of its suppliers. A firm purchase commitment represents an agreement that specifies all significant terms, including price and timing of the transactions, and includes a disincentive for non-performance that is sufficiently large to make performance probable. This disincentive is generally in the form of a take-or-pay provision, which requires the Company to pay for committed volumes regardless of whether the Company actually acquires the materials. The Company evaluates these agreements and records a loss, if any, on firm purchase commitments using the same lower of cost or market approach as that used to value inventory.

The Company amended certain firm purchase commitments during the year ended December 31, 2022, which significantly reduced its commitments. Negotiations with other suppliers are still ongoing to blend and extend or terminate other future commitments due to supply chain constraints and cost increases for both parties. The Company recognized $600 in losses associated with firm purchase commitments during the year ended December 31, 2022. If negotiations to amend certain purchase commitments are not successful, the Company may incur additional losses in future periods.

The Company also has other commitments, including marketing and software subscription agreements and equipment leases. The equipment leases included here only relate to leases for which the equipment had not yet been delivered to the Company as of March 31, 2023. Since the Company did not receive the equipment, the related right-of-use asset and lease liability were not recognized as of March 31, 2023. However, the Company was still committed to the financing

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arrangement. All other financial commitments under leasing arrangements are described in Note 8.

The amounts in the table below represent the Company’s future minimum commitments.

	As of March 31, 2023
	Firm Purchase		Other		Total
2023 (remainder of the year)	$	55,742	$	725	$	56,467
2024	—		482		482
2025	—		203		203
2026	—		163		163
2027	—		12		12
Thereafter	—		—		—
Total	$	55,742	$	1,585	$	57,327

Legal Proceedings

Aside from the proceedings described below, the Company may be involved in legal matters arising in the ordinary course of business from time to time. While the Company believes that such matters are currently not material, there can be no assurance that matters arising in the ordinary course of business for which the Company is or could become involved in litigation will not have a material adverse effect on its business, financial condition or results of operations. The Company records an accrual for legal contingencies when it determines that it is probable that it has incurred a liability and it can reasonably estimate the amount of the loss.

On August 4, 2021, a purported stockholder of the Company filed a putative class action complaint in the Delaware Chancery Court, captioned Delman v. GigCapitalAcquisitions3, LLC, et al. (Case No. 2021-0679) on behalf of a purported class of stockholders. The lawsuit names GigCapitalAcquisitions3, LLC and the Company’s former directors Dr. Katz, Dr. Dinu, and Messrs. Betti-Berutto, Mikulsky, Miotto and Wang, as defendants. The lawsuit alleges that the defendants breached their fiduciary duty stemming from Gig’s merger with Lightning Systems and unjust enrichment of certain of the defendants. The lawsuit seeks, among other relief, unspecified damages, redemption rights, and attorneys’ fees. Neither the Company nor any of its current officers or directors are parties to the lawsuit. The Company’s former directors are subject to certain indemnification obligations of the Company. On January 4, 2023, the Delaware Chancery Court denied the defendant's motion to dismiss.

In addition, on October 15, 2021, the Company and certain of its officers were named as defendants in a putative securities class action. The action is pending in the U.S. District Court for the District of Colorado, and is captioned Shafer v. Lightning eMotors, Inc., et al., Case No. 1:21-cv02774. The lawsuit alleges violations of Sections 10(b), Section 14(a) and 20(a) of the Securities Exchange Act of 1934, as amended, and Rule 10b-5 promulgated thereunder for purported false or misleading statements regarding the Company’s business operations and financial condition. A related lawsuit captioned Cohen v. Lightning eMotors, Inc., et al., Case No. 1:21-cv-03215, was filed in the United States District Court for the District of Colorado on December 1, 2021. On December 17, 2021, the Cohen lawsuit was consolidated with the Shafer lawsuit. On April 22, 2022, the court appointed a lead plaintiff in the consolidated lawsuit. The lead plaintiff’s filed a consolidated complaint on May 20, 2022. On July 13, 2022, the Company and the other defendants filed a motion to dismiss the class action. On February 21, 2023, the court denied the motion to dismiss. The plaintiffs seek damages in an unspecified amount, attorneys’ fees, and other remedies. The Company believes the allegations are without merit and intends to defend vigorously against such allegations.

On February 6, 2023, a purported stockholder of the Company filed a derivative complaint in the Delaware Chancery Court, captioned Uvaydov v. Robert Fenwick-Smith, Tim Reeser, et al. (Case No. 2023-0137-LWW). The lawsuit names certain current and former officers and directors of the Company as defendants. The lawsuit alleges that the defendants breached their fiduciary duty stemming from GigCapital3’s merger with Lightning Systems. The lawsuit seeks, among other relief, unspecified damages, redemption rights, and attorneys’ fees. The Company believes the allegations are without merit and intends to defend vigorously against them.

On February 24, 2023, a purported stockholder of the Company filed a derivative complaint in the U.S. District Court for the District of Colorado, captioned Lanham v. Robert Fenwick-Smith, et al. (Case No. 1:23-cv00507). The lawsuit names certain current and former officers and directors of the Company as defendants. The lawsuit alleges, among others, that the

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defendants breached their fiduciary duty stemming from GigCapital3’s merger with Lightning Systems. The lawsuit seeks, among other relief, unspecified damages, and attorneys’ fees. The Company believes the allegations are without merit and intends to defend vigorously against them.

On March 9, 2023, the Company filed a lawsuit against Romeo Systems, Inc. and Nikola Corporation in the Larimer County District Court, Colorado (Case No. 2023CV30187) seeking damages for breach of contract and tortious interference related to the product supply agreement between the Company and Romeo dated July 13, 2020, arising from Romeo’s failure to deliver batteries under the agreement and for costs associated with a recall of the batteries. The Company initiated a voluntary recall after Romeo refused to take action as the supplier of the batteries.

Recall Campaigns

On December 16, 2022, the Company initiated a voluntary recall for certain 2021-2022 model year Lightning eMotors ZEV4 vehicles due to multiple software and hardware discrepancies internal to the Romeo battery packs installed in the ZEV4 series vehicles. The affected vehicles may fail to operate in cold temperatures, fail to start, or may lose traction power while driving, increasing the risk of an accident. Romeo has been formally notified of the recall; however, Romeo has not reached a solution to honor their battery warranty. See Note 13 under the section “Legal Proceedings”. The Company’s current remedy is to either replace the ZEV4 manufactured with Romeo battery packs with updated ZEV4 models manufactured with Proterra battery packs or to refund full value of the purchase price to the customer. The Company will seek to recover the costs and expenses associated with the recall from Romeo.

On March 27, 2023, the Company initiated a voluntary recall for certain model year 2020 FT3-43, 2019-2022 FT3-86, 2020 FE4-86 and 2019-2021 FE4-129 vehicles equipped with eMatrix battery packs. Defective structural welds and internal radiator leaks have been found in the battery packs which may result in isolation faults and cell imbalances. The affected vehicles may lose traction power, increasing the potential for collisions or experience a thermal runaway which could result in vehicle fires. The Company is currently working with eMatrix, the battery manufacturer, to develop a remedy for the structural welds and internal radiator leaks. Because the remedy is still being developed, the Company is unable to reasonably estimate a range of the potential losses associated with the recall.

Note 14 - Subsequent Events

On April 24, 2023, the Company filed with the Secretary of State of the State of Delaware a Certificate of Amendment (the “Certificate of Amendment”) to the Company’s Second Amended and Restated Certificate of Incorporation to effect a 1-for-20 reverse stock split (the “Reverse Stock Split”) of the Company’s issued and outstanding shares of common stock, par value $0.0001 per share, effective as of 5:00 p.m. Eastern Time on April 27, 2023. Beginning with the opening of trading on April 28, 2023, the Company’s common stock traded on the New York Stock Exchange on a split-adjusted basis under the new CUSIP number 53228T 200 and will continue to trade under the symbol “ZEV.”

As a result of the Reverse Stock Split, every twenty shares of common stock issued and outstanding were automatically reclassified into one share of common stock. No fractional shares were issued in connection with the Reverse Stock Split. Stockholders who otherwise would have been entitled to receive fractional shares because they held a number of shares of common stock not evenly divisible by the Reverse Stock Split ratio were automatically entitled to receive a cash payment equal to the value of such fractional share based on the closing price of the common stock as of the effective time of the Reverse Stock Split adjusted for the Reverse Stock Split.

The Reverse Stock Split did not reduce the number of authorized shares of common stock of 250,000,000, or change the par value of the common stock. The Reverse Stock Split affected all stockholders uniformly and did not affect any stockholder’s ownership percentage of the Company’s shares of common stock.

All outstanding options, warrants, restricted stock units and similar securities entitling their holders to receive or purchase shares of common stock were adjusted as a result of the Reverse Stock Split, as required by the terms of each security. Prior to the Reverse Stock Split, the Company had outstanding issued warrants listed on the NYSE to purchase a total of 14,999,970 shares of common stock, with each whole warrant being exercisable to purchase one share of common stock at $11.50 per share. After giving effect to the Reverse Stock Split, these warrants are now exercisable for a total of approximately 749,998 shares of common stock, resulting in each warrant becoming exercisable for 1/20th of a share of common stock with an exercise price of $230.00 per whole share.

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Item 2. Management’s Discussion of Analysis of Financial Condition and Results of Operations

References to “we,” “us,” “our” or the “Company” are to Lightning eMotors, Inc., together with its wholly owned subsidiary, except where the context requires otherwise. The following discussion should be read in conjunction with our unaudited consolidated financial statements and related notes thereto included elsewhere in this report and our audited consolidated financial statements and the related notes included in our annual report on Form 10-K for the year ended December 31, 2022 filed with the Securities and Exchange Commission on March 13, 2023.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This quarterly report on Form 10-Q includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Our forward-looking statements include, but are not limited to, statements regarding our or our management team’s expectations, hopes, beliefs, intentions, or strategies regarding the future. In addition, any statements that refer to projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, are forward-looking statements. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “will,” “would” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking.

The forward-looking statements contained in this report are based on our current expectations and beliefs concerning future developments and their potential effects on us. There can be no assurance that future developments affecting us will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. These risks and uncertainties include, but are not limited to the risks described in our annual report on Form 10-K, including, but not limited to: our ability to continue as a going concern; our ability to become profitable; our ability to raise additional funds; our ability to service our debt; our ability to control costs of our operations; our ability to obtain sufficient supplies of chassis, motors, batteries and other critical components for the manufacture of our ZEVs and powertrains; an increase in the cost of raw materials due to inflation; the impact of inflation and rising rates on customers’ decisions to purchase ZEVs; the number of orders placed by our commercial fleet customers; the market acceptance of our products; the availability, amount and disbursement of government grants, loans or other incentives; and other risks and uncertainties.

Should one or more of these risks or uncertainties materialize, or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. These forward-looking statements speak only as of the date hereof. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required by law.

Overview

We are a leading designer and manufacturer of zero-emission commercial trucks and buses and charging infrastructure solutions for fleets, large enterprises, original equipment manufacturers, and governments. Our product offerings range from cargo vans, transit and shuttle buses, school buses, specialty work trucks, ambulances and electric powertrains for school buses, transit buses and motorcoaches. Our product solutions help our customers reduce their greenhouse gas emissions, lower operating costs and improve energy efficiency.

We started in 2008 as a manufacturer of hybrid systems for commercial vehicles. In 2017, we redirected our efforts to focus exclusively on the market opportunity in ZEVs. We successfully and quickly adapted to developing ZEVs by leveraging nearly 10 years of extensive knowledge and production infrastructure for the hybrid systems. Our 14-year track-record of research and development, significant customer engagement and validation, and focus on building highly customized vehicles has allowed us to create an electric solution that we believe remains ahead of the competition in terms of technology, reliability, and versatility. We combine internally-developed, optimized modular software, which can be used in multiple platforms and applications, with hardware designs that allows us to address a diverse range of opportunities in the markets in which we operate in a cost-effective manner. Our flexible approach provides a significant time-to-market advantage. We believe we are the only full-range manufacturer of Class 3 to 7 ZEVs in the United States providing end-to-end electrification solutions including advanced analytics software and mobile charging solutions to our customers.

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Recent Developments

Production. During the three months ended March 31, 2023 and 2022, we produced 53 and 74 units, respectively, consisting of zero-emission vehicles, or ZEVs, and separately sold zero-emission powertrains. During the three months ended March 31, 2023, we sold 29 units compared to the sale of 68 units in the same period in 2022. As of May 8, 2023, we had over 500 vehicles on the road with over 4.2 million miles driven.We are currently focused on increasing production of our ZEVs and our mobile battery vehicle charger, reducing costs, increasing the affordability and efficiency of our ZEVs, and bringing new products to market.

Reverse Stock Split. We effected a 1-for-20 reverse stock split, or the Reverse Stock Split, of our issued and outstanding shares of common stock, par value $0.0001 per share, effective as of 5:00 p.m. Eastern Time on April 27, 2023. As a result of the Reverse Stock Split, every twenty shares of common stock issued and outstanding were automatically reclassified into one share of common stock. All share and per share amounts were retroactively adjusted for all periods presented to give effect to the Reverse Stock Split, including reclassifying an amount equal to the reduction in par value of our common stock to additional paid-in capital.

Material Trends and Uncertainties

Macroeconomic Factors. The impact of current macroeconomic conditions on our business - including slowed economic growth or the potential for a recession, increasing inflation and interest rates which affect the demand of our ZEVs, supply chain constraints, and geopolitical events - is uncertain. In addition, although the impact is lessening, the extent to which the effects of the COVID-19 pandemic may impact our business in future periods remains uncertain and unpredictable. Our outlook for future growth in ZEVs depends upon the various economic and regulatory conditions, and on our ability to manage through supply chain issues that have, and will continue to, limit the level to which we can increase output in the near term. Our long-term outlook remains positive as we believe the adoption of alternative fuel vehicles and the electric vehicle market will continue to grow.

Availability of grant funding. Many of our customers utilize state and federal incentive programs to offset the higher initial costs of electric vehicles, as well as to fund the installation of charging equipment. In connection with the new tax credits for certain commercial EVs established by the Inflation Reduction Act of 2022, we have been transitioning some of our efforts towards larger ZEVs that qualify for the larger tax credits. The IRS is still in the process of releasing further guidance on specific aspects of the aforementioned credits. The announcement of the IRA and the delay in receiving IRS guidance as to the roll-out of the new tax credits has reduced the number of customer orders during the first quarter of 2023, as many existing or potential customers are waiting to place orders until they are certain of the amount of tax credits available per ZEV. In addition, many customers are evaluating the size and type of ZEV they intend to purchase because the amount of the tax credit depends on the weight of the vehicle, among other factors. Furthermore, other government programs, such as the FTA's Low- and No-Emission Vehicle Program, the Colorado Electric School Bus Grant Program or certain other state programs, recently announced new funding and are in the process of making these funds available for eligible purchases. Until these processes are established, we believe, customer orders may be delayed.

Supply-Chain challenges. We have been experiencing significant delivery delays from our suppliers since April 2020. In addition, we often do not get informed of delivery delays until or after the expected delivery dates and have, at times, also experienced deliveries in advance of expected delivery dates without prior notice (for orders that were previously delayed), which does not allow for adequate planning. We have also been experiencing shortages of chassis and other components. We have increased our raw material inventories and added new suppliers. However, adding new suppliers, especially for chassis, increases cost and delays production. We expect supply chain challenges will continue for the foreseeable future. As a result of these challenges, we increased our inventory of chassis, batteries, motors and other raw materials to optimize cost, minimize supply chain issues and prepare for an increase in future production. We have also entered into multi-year minimum purchase commitments with some of our suppliers of critical components. As of March 31, 2023, the minimum purchase commitment for the next twelve months is $55.7 million under these agreements. However, we are constantly evaluating our commitments and are currently in negotiations to either blend and extend or terminate some of our future commitments to address supply chain constraints and costs.

Inflation and interest rates. We are experiencing cost increases due to inflation resulting from various supply chain disruptions and general global economic conditions. The cost of raw materials, manufacturing equipment, labor and shipping and transportation has increased considerably. We expect higher levels of inflation to persist for the foreseeable future. If we are unable to fully offset higher costs through price increases or other measures, we could experience an adverse impact to our business, prospects, financial condition, results of operations, and cash flows. Interest rates have also

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increased considerably. The increase in inflation and interest rates impacts the demand for our ZEVs, as customers may delay purchasing ZEVs and/or have difficulty financing their ZEV purchases. Rising interest rates also present a recent challenge impacting the U.S. economy and could make it more difficult for us to obtain financing on acceptable terms, if at all, in the future.Additionally, the general consensus among economists suggests that we should expect a higher recession risk to continue over the next year, which, together with the foregoing, could result in further economic uncertainty and volatility in the capital markets in the near term, and could negatively affect our operations. Furthermore, such economic conditions have produced downward pressure on share prices.

Ability to Attract New Customers and Customer Demand. Our growth will depend in large part on our ability to attract new customers. We have invested heavily in developing our ZEVs and electric powertrains and plan to continue to do so. We anticipate that our sales activities will lead to additional orders and deliveries, and, as a result, increase our base of customers. An inability to attract new customers would substantially impact our ability to grow revenue or improve our financial results. Further, we often receive binding and non-binding purchase orders from customers that are contingent on various factors, such as completing a successful pilot program, obtaining third-party financing or obtaining government grants, such as HVIP. In addition, some customers are interested in future products, not yet in our production. While we continuously strive to expand our product catalog, developing new platforms takes a significant amount of time and expense, such as engineering work, sourcing new suppliers, marketing, testing and quality control. In addition, orders may be delayed for a number of reasons, many of which are beyond our control, including supplier delays, which may cause delays in our manufacturing process, or delays in customers obtaining financing. As a result, any such orders may not result in actual revenue in the near term or at all. Accordingly, revenue estimates and the amount and timing of work expected to be performed at the time the estimate of order backlog is developed is subject to change.

Ability to Continue as a Going Concern. As discussed below, we have suffered recurring losses from operations. Our continuation as a going concern is dependent upon us attaining and maintaining profitable operations and/or raising additional capital from public offerings, debt financings or other capital markets transactions, collaborations or licensing arrangements. There can be no assurance that we will be successful in raising additional capital or that such capital, if available, will be on terms that are acceptable to us. If capital is not available to us when, and in the amounts needed, we could be required to delay, scale back, or abandon some or all of our development programs and operations, which could materially harm our business, financial condition and results of operations. Due to uncertainties discussed above, there is substantial doubt about our ability to continue as a going concern through the next twelve months from the date of issuance of the consolidated financial statements contained herein.

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Results of Operations

Comparison of Three Months Ended March 31, 2023 and 2022

Revenue

The following table compares revenue for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023		2022		$ Change		% Change
	(dollar amounts in thousands)
Gross Revenue	$	3,566	$	5,412	$	(1,846)	(34)	%
Customer refunds(1)	(2,255)		—		$	(2,255)	nm*
Revenue, net of customer refunds	$	1,311	$	5,412	$	(4,101)	(76)	%
ZEV units sold	29		68		(39)		(57)	%

(1) Customer refunds are related to the ZEV4 recall on vehicles that were manufactured with Romeo battery packs.

We derive revenue primarily from the sale of our ZEVs. Revenue, net of customer refunds decreased by $4.1 million, or 76%, during the three months ended March 31, 2023 primarily related to lower sales and refunds of the purchase price made to customers for the ZEV4 manufactured with Romeo batteries in connection with the Romeo recall. We will seek to recover the costs and expenses associated with the recall from Romeo. Excluding the adjustment for customer refunds, revenue decreased by $1.8 million, or 34%, during the three months ended March 31, 2023 due to a decrease in ZEV sales. We sold 29 ZEVs during the three months ended March 31, 2023 compared to the sale of 68 ZEVs during the three months ended March 31, 2022. The decrease in revenue and number of units sold was primarily the result of lower ZEV4 sales due to the Romeo battery recall, offset by an increase in the average sales price per unit due to the change in product mix to primarily ZEV3 passenger transit van sales during the three months ended March 31, 2023 compared to ZEV3 cargo van sales during the prior year period.

Cost of Revenues, Gross Loss and Gross Margin

The following table compares the cost of revenues, gross loss and gross margin for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023			2022			$ Change		% Change
	(dollar amounts in thousands)
Cost of revenues	$	8,152		$	7,722		$	430	6	%
Gross loss	$	(6,841)		$	(2,310)		$	(4,531)	(196)	%
Gross margin	(522)		%	(43)		%

Cost of revenues includes direct costs (parts, material, and labor); indirect manufacturing costs (manufacturing overhead, depreciation and plant operating lease expense); shipping, field services, logistics and warranty costs.

Cost of revenues increased during the three months ended March 31, 2023 due to an increase in the lower of cost or net realizable value expense associated with finished goods, an increase in inventory obsolescence expense, as well as an increase in costs per unit due to an increase in raw material costs and factory overhead and other fixed costs during the three months ended March 31, 2023 compared to the prior year period.

Research and Development

The following table compares research and development expense for the three months ended March 31, 2023 and 2022:

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	Three Months Ended March 31,
	2023		2022		$ Change		% Change
	(dollar amounts in thousands)
Research and development	$	2,087	$	1,942	$	145	7	%

Research and development expenses consist primarily of costs incurred for the discovery and development of our zero-emission powertrain solutions and the production thereof, which principally include personnel-related expenses including salaries, benefits, travel and stock-based compensation, for personnel performing research and development activities; expenses related to materials, supplies and testing; and consulting and occupancy expenses.

Research and development expenses increased during the three months ended March 31, 2023 due to an increase in our engineering headcount year-over-year, as we continue to advance the development and design of our products, refine and improve our production processes and enhance our in-house engineering capabilities.

Selling, General and Administrative

The following table compares selling, general and administrative expense for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023		2022		$ Change		% Change
	(dollar amounts in thousands)
Selling, general and administrative	$	14,848	$	11,599	$	3,249	28	%

Selling, general and administrative expenses consist of personnel-related expenses for our corporate, executive, engineering, finance, sales, marketing, program management support, and other administrative functions, expenses for outside professional services, including legal, audit and accounting services, as well as expenses for information technology, facilities, insurance, depreciation, amortization, travel, and sales and marketing costs. Personnel-related expenses consist of salaries, payroll taxes, benefits, and stock-based compensation.

Selling, general and administrative expenses increased by $3.2 million, or 28%, during the three months ended March 31, 2023 primarily due to an increase in employee headcount in sales and administration.

Interest Expense, net

The following table compares interest expense for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023		2022		$ Change		% Change
	(dollar amounts in thousands)
Interest expense, net	$	3,129	$	3,861	$	(732)	(19)	%

Interest expense consists of interest paid on notes payable, the amortization of debt issuance costs, the amortization of debt discounts attributable to the bifurcation of warrants issued, and amortization of an embedded conversion feature. The notes payable included, over the periods presented, the Convertible Note and the Facility, as described in more detail in Note 7 to the consolidated financial statements.

Interest expense for the three months ended March 31, 2023 included $3.4 million of accrued interest and discount amortization related to the Convertible Note and $0.1 million of interest expense associated with the Facility, offset by $0.4 million of interest income on our cash equivalents. Interest expense for the three months ended March 31, 2022 included $3.8 million of accrued interest and discount amortization related to the Convertible Note and $0.1 million of interest expense associated with the Facility.

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Change in Fair Value of Warrant Liabilities

The following table compares the change in fair value of warrant liabilities for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023		2022		$ Change
	(dollar amounts in thousands)
Gain from change in fair value of warrant liabilities	$	(6)	$	(188)	$	182

The change in fair value of the warrant liabilities for the three months ended March 31, 2023 and March 31, 2022 reflect the impact of the marking-to-market of the warrant liabilities.

Change in Fair Value of Derivative Liability

The following table compares the change in fair value of derivative liability embedded in the Convertible Note for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023		2022		$ Change
	(dollar amounts in thousands)
Gain from change in fair value of derivative liability	$	(39)	$	(2,555)	2,516

The changes in fair value of the derivative liability for the three months ended March 31, 2023 and March 31, 2022 reflect the impact of the marking-to-market of the underlying derivative embedded in the Convertible Note.

Change in Fair Value of Earnout Liability

The following table compares the change in fair value of earnout liability for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023		2022		$ Change
	(dollar amounts in thousands)
Gain from change in fair value of earnout liability	$	(406)	$	(6,172)	$	5,766

The changes in fair value of the earnout liability for the three months ended March 31, 2023 and March 31, 2022 reflect the impact of the marking-to-market of the earnout shares.

Non-GAAP Financial Measures

In addition to our results determined in accordance with GAAP, we believe the following non-GAAP measures, as defined in Item 10(e) of Regulation S-K, are useful in evaluating our operational performance. We use the following non-GAAP financial information among other operational metrics to evaluate our ongoing operations and for internal planning and forecasting purposes. We believe that non-GAAP financial information, when taken collectively, may be helpful to investors in assessing our operating performance. The presentation of non-GAAP financial information should not be considered in isolation or as a substitute for, or superior to, the financial information prepared and presented in accordance with GAAP.

EBITDA and Adjusted EBITDA

We define EBITDA as net income (loss) before depreciation and amortization and interest expense. We define adjusted EBITDA as net income (loss) before depreciation and amortization, interest expense, stock-based compensation, gains or losses related to the change in fair value of warrant, derivative and earnout share liabilities and other non-recurring costs determined by management, such as gains or losses on extinguishment of debt and losses related to the Romeo battery

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recall. We believe EBITDA and adjusted EBITDA are meaningful metrics intended to supplement measures of our performance that are neither required by, nor presented in accordance with, GAAP. We believe that using EBITDA and adjusted EBITDA provides an additional tool for investors to use in evaluating ongoing operating results and trends while comparing our financial measures with those of comparable companies, which may present similar non-GAAP financial measures to investors. However, you should be aware that when evaluating EBITDA and adjusted EBITDA we may incur future expenses similar to those excluded when calculating these measures. In addition, our presentation of these measures should not be construed as an inference that our future results will be unaffected by unusual or non-recurring items. Our computation of EBITDA and adjusted EBITDA may not be comparable to other similarly titled measures computed by other companies, because all companies may not calculate EBITDA and adjusted EBITDA in the same fashion.

Because of these limitations, EBITDA and adjusted EBITDA should not be considered in isolation or as a substitute for performance measures calculated in accordance with GAAP. We compensate for these limitations by relying primarily on our GAAP results and using EBITDA and adjusted EBITDA on a supplemental basis. No undue reliance should be placed on these non-GAAP measures.

The following table reconciles net income (loss) to EBITDA and adjusted EBITDA for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023		2022
Net income (loss)	$	(23,435)	$	(10,756)
Adjustments:
Depreciation and amortization	532		361
Interest expense, net	3,129		3,861
EBITDA	$	(19,774)	$	(6,534)
Stock-based compensation expense	1,442		972
(Gain) loss from change in fair value of warrant liabilities	(6)		(188)
(Gain) loss from change in fair value of derivative liability	(39)		(2,555)
(Gain) loss from change in earnout liability	(406)		(6,172)
Gain on extinguishment of debt	(2,965)		—
Romeo battery recall	2,025		—
Adjusted EBITDA	$	(19,723)	$	(14,477)

Adjusted Revenue

Adjusted revenue is defined as revenue before customer refunds. The following table reconciles revenue, net of customer refunds and adjusted revenue for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31,
	2023		2022
Revenue, net of customer refunds	$	1,311	$	5,412
Customer refunds	2,255		—
Adjusted Revenue	$	3,566	$	5,412

Liquidity and Going Concern

Since our inception, we have financed our operations primarily from debt financing and the sales of common and convertible preferred shares. We closed the Business Combination on May 6, 2021 pursuant to which we added $216.8 million of cash, net of redemptions, to the balance sheet.

In accordance with the ASC 205-40, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, (“ASC 205-40”), we have evaluated whether there are conditions and events, considered in the aggregate, that raise

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substantial doubt about our ability to continue as a going concern within one year after the date that the consolidated financial statements are issued.

As of March 31, 2023, the we had $35,447 in cash and cash equivalents and an accumulated deficit of $(189,829). For the three months ended March 31, 2023, our net loss amounted to $23,435. Cash used in operating activities was $18,851 for the three months ended March 31, 2023. We had positive working capital of $82,234 as of March 31, 2023 primarily as a result of the Business Combination. The current and historical operating cash flows, current cash and working capital balances, and forecasted obligations were considered in connection with management’s evaluation of our ongoing liquidity. However, we will require additional capital to fund our operations; further develop our products and services; and fund possible acquisitions. Our ability to access capital is critical. Until we can generate sufficient cash flow from operations, we expect to finance our operations through a combination of the merger proceeds received from the Business Combination as well as from additional public offerings, debt financings or other capital markets transactions, collaborations or licensing arrangements. The amount and timing of future funding requirements depend on many factors, including the pace and results of development efforts and our ability to scale our operations. There can be no assurance that we will be successful in raising additional capital or that such capital, if available, will be on terms that are acceptable to us.

We have secured and intend to employ various strategies to obtain the required funding for future operations such as accessing capital through our ELOC Agreement with Lincoln Park Capital, LLC. However, the ability to access the ELOC Agreement is dependent on our common stock trading volumes and the market price of our common stock, which cannot be assured, and as a result cannot be included as sources of liquidity for our ASC 205-40 analysis. As of March 31, 2023 and through the date of this filing, we have not sold any shares of common stock to Lincoln Park under the ELOC Agreement other than the commitment shares.

If capital is not available to us when, and in the amounts needed, we could be required to delay, scale back, or abandon some or all of our development programs and operations, which could materially harm our business, financial condition and results of operations. Due to uncertainties discussed above, there is substantial doubt about our ability to continue as a going concern through the next twelve months from the date of issuance of the consolidated financial statements contained herein.

Material Cash Requirements

From time to time in the ordinary course of business, we enter into agreements with vendors for the purchase of components and raw materials to be used in the manufacture of our products. To provide flexibility in our development and production plan and opportunities to renegotiate pricing, we generally do not have binding and enforceable purchase orders beyond the near term. However, in order to secure raw materials vital to our products, we have entered into multi-year minimum purchase commitments with some of our suppliers. If we fail to meet the minimum purchase commitments, we must pay a penalty. As of March 31, 2023, the minimum purchase commitment for the next twelve months is $55.7 million under these agreements. However, we are currently in negotiations with certain suppliers to either blend and extend or terminate some of our future commitments due to supply chain constraints and cost increases for both parties. See Note 13 to the consolidated financial statements for additional information.

Our capital expenditures are typically difficult to project beyond the short term given potential supply chain constraints and market conditions. We estimate our total capital expenditures for the year 2023 to be between $5.0 and $8.0 million for development and production activities.

Debt

As of March 31, 2023, we had outstanding $59.9 million of principal indebtedness associated with our Convertible Note, which matures on May 15, 2024. We are obligated to make semi-annual interest payments of $2.3 million in May and November through maturity based on an annual interest rate of 7.5%.

On February 10, 2023, we completed an exchange with a holder of the outstanding Convertible Notes via privately negotiated exchange agreements, pursuant to which the holder agreed to exchange $3.5 million in aggregate principal amount of the Convertible Notes at a discount of 95% of par for 210,443 shares of our common stock at a price of $15.80 per share.

On March 10, 2023, we entered into privately negotiated exchange agreements with certain holders pursuant to which the holders agreed to exchange $10.5 million in aggregate principal amount of the outstanding Convertible Notes for 937,500 shares of our common stock, par value $0.0001 per share, at a price of $11.20 per share.

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We also had outstanding $3.0 million of principal indebtedness associated with our Facility, which matures on October 21, 2024. We are obligated to make quarterly interest payments of $0.1 million through maturity based on an annual interest rate of 15%. See Note 7 to the consolidated financial statements for additional information.

Leases

We have one material lease commitment, an operating lease covering our manufacturing center, distribution center and office space. We also have an operating lease for IT equipment and finance leases for manufacturing equipment. As of March 31, 2023, our total minimum lease commitments were $12.7 million, with $3.1 million due in the next twelve months. See Note 8 to the consolidated financial statements for additional information.

Cash Flows

The following table provides a summary of cash flow data (in thousands):

	Three Months Ended March 31,
	2023		2022
	(dollar amounts in thousands)
Net cash used in operating activities	$	(18,851)	$	(16,142)
Net cash used in investing activities	(1,673)		(2,024)
Net cash (used in) provided by financing activities	(40)		(9)
Net (decrease) increase in cash	$	(20,564)	$	(18,175)

Cash Flows Used In Operating Activities

Net cash used in operating activities for the three months ended March 31, 2023 and 2022 was $18.9 million and $16.1 million, respectively. Cash flows from operating activities are significantly affected by revenue levels, mix of products and services, and investments in the business in research and development and selling, general and administrative costs in order to develop products and services, improve manufacturing capacity and efficiency, and support revenue growth. With respect to the three months ended March 31, 2023, increases in net cash used in operating activities, in comparison to the corresponding prior period, were principally driven by increases in cost of revenues and selling, general and administrative expenses, as described in more detail above.

Cash Flows Used In Investing Activities

Net cash used in investing activities for the three months ended March 31, 2023 and 2022 was $1.7 million and $2.0 million, respectively.

Cash Flows From Financing Activities

Net cash used in financing activities for the three months ended March 31, 2023 and 2022 was de minimis.

Off-Balance Sheet Arrangements

We have not engaged in any off-balance sheet arrangements, as defined in the rules and regulations of the SEC.

Critical Accounting Policies and Estimates

We believe that there have been no significant changes to our critical accounting policies and estimates during the three months ended March 31, 2023 as compared to those disclosed in our Annual Report on Form 10-K for the year ended December 31, 2022.

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Emerging Growth Company Status

We are an emerging growth company, or EGC, as defined in Section 2(a) of the Securities Act, as modified by the JOBS Act. As an EGC, we are permitted to take advantage of an extended transition period to comply with new or revised accounting standards, delaying the adoption of these accounting standards until they would apply to private companies. We have elected to use this extended transition period to enable us to comply with new or revised accounting standards that have different effective dates for public and private companies until the earlier of the date we (i) are no longer an emerging growth company or (ii) affirmatively and irrevocably opt out of the extended transition period. As a result, our financial statements may not be comparable to companies that comply with the new or revised accounting standards as of public company effective dates.

In addition, we intend to rely on the other exemptions and reduced reporting requirements provided by the JOBS Act. Subject to certain conditions set forth in the JOBS Act, if, as an EGC, we intend to rely on such exemptions, we are not required to, among other things: (i) provide an auditor’s attestation report on our system of internal controls over financial reporting pursuant to Section 404(b) of the Sarbanes-Oxley Act; (ii) provide all of the compensation disclosure that may be required of non-emerging growth public companies under the Dodd-Frank Wall Street Reform and Consumer Protection Act; (iii) comply with any requirement that may be adopted by the Public Company Accounting Oversight Board regarding mandatory audit firm rotation or a supplement to the auditor’s report providing additional information about the audit and the financial statements (auditor discussion and analysis); and (iv) disclose certain executive compensation-related items such as the correlation between executive compensation and performance and comparisons of the Chief Executive Officer’s compensation to median employee compensation.

We will remain an EGC under the JOBS Act until the earliest of (i) December 31, 2025, which is the last day of our first fiscal year following the fifth anniversary of our initial public offering, (ii) the last date of our fiscal year in which we have total annual gross revenue of at least $1.24 billion, (iii) the date on which we are deemed to be a “large accelerated filer” under the rules of the SEC with at least $700.0 million of our common equity held by non-affiliates, or (iv) the date on which we have issued more than $1.0 billion in non-convertible debt securities during the previous three-year period.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

As a small reporting company defined by Rule 12b-2 of the Exchange Act and in Item 10(f)(1) of regulation S-K, we are not required to provide the information requested by this item.

Item 4. Controls and Procedures

Disclosure Controls and Procedures

The Company maintains disclosure controls and procedures designed to provide reasonable assurance that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in SEC rules and forms. Any controls and procedures, no matter how well designed and operated, can provide only reasonable, not absolute, assurance of achieving the desired control objectives. The Company’s management, with participation from our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our design and operation of the Company’s disclosure controls and procedures as of March 31, 2023. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of March 31, 2023.

Changes in Internal Control over Financial Reporting

During the three months ended March 31, 2023, there has been no change in our internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II — OTHER INFORMATION

Item 1. Legal Proceedings

The information with respect to this Part II, Item 1 can be found in Note 13 to the consolidated financial Statements included in this quarterly report on Form 10-Q, and is incorporated herein by reference.

Item 1A. Risk Factors

There have been no material changes from the risk factors previously discussed in Part 1, Item 1A Risk Factors in our annual report on Form 10-K for the year ended December 31, 2022. However, these risks are not the only risks facing us. There may be additional risks and uncertainties that are not currently known to us or that we currently consider to be insignificant that could materially and adversely affect our business, financial condition, or operating results in the future.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

During the three months ended March 31, 2023, we issued the following unregistered shares:

On February 10, 2023, we issued 210,443 shares of common stock, par value $0.0001 per share, at a price of $15.80 per share to a holder of the Company’s unsecured 7.5% convertible senior notes due in 2024 in exchange for the cancellation of $3.5 million in aggregate principal amount of the outstanding convertible notes at a discount of 95% of par.

On March 10, 2023, we issued 937,500 shares of common stock, par value $0.0001 per share, at a price of $11.20 per share to certain holders of the Company’s unsecured 7.5% convertible senior notes due in 2024 in exchange for the cancellation of $10.5 million in aggregate principal amount of the outstanding convertible notes.

We relied on the Section 4(a)(2) exemption from securities registration under the federal securities laws for transactions not involving any public offering. No advertising or general solicitation was employed in offering the securities. The securities were issued to accredited investors. The securities were offered for investment purposes only and not for the purpose of resale or distribution

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

None.

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Item 6. Exhibits

EXHIBIT INDEX

Exhibit No.	Description
2.1*	Business Combination Agreement, dated as of December 10, 2020, by and among GigCapital3, Inc., Project Power Merger Sub, Inc. and Lightning Systems, Inc. (included as Annex A to the Final Proxy Statement/Prospectus filed under Rule 424(b)(3) on March 26, 2021).
3.1	Second Amended and Restated Certificate of Incorporation of Lightning eMotors, Inc. (incorporated by reference to Exhibit 3.1 filed on the Company’s Current Report on Form 8-K, filed by the Company on May 12, 2021)
3.2	Certificate of Amendment to the Second Amended and Restated Certificate of Incorporation of the Company, effective April 27, 2023 (incorporated by reference to Exhibit 3.1 filed on the Company’s Current Report on Form 8-K, filed by the Company of April 24, 2023)
3.3	Amended and Restated Bylaws of Lightning eMotors, Inc. (incorporated by reference to Exhibit 3.2 filed on the Company’s Current Report on Form 8-K, filed by the Company on May 12, 2021)
4.1	Specimen Common Stock Certificate (incorporated by reference to Exhibit 4.1 filed on the Company’s Form S-1 (File No. 333-257237), filed by the Company on June 21, 2021)
4.2	Specimen Warrant Certificate (incorporated by reference to Exhibit A in Exhibit 10.4 filed on the Company’s Current Report on Form 8-K, filed by the Company on May 12, 2021)
4.3	Description of the Company’s Securities (incorporated by reference to Exhibit 4.3 filed on the Company’s Annual Report on Form 10-K for the year ended December 31, 2021, filed by the Company on March 30, 2022)
10.1	Lightning Systems, Inc. 2019 Equity Incentive Plan (incorporated by reference to Exhibit 10.16 filed on the Company’s Current Report on Form 8-K/A, filed by the Company on May 17, 2021)
10.2	2021 Equity Incentive Plan (incorporated by reference to Exhibit 10.7 filed on the Company’s Current Report on Form 8-K, filed by the Company on May 12, 2021)
10.3	Indenture dated May 6, 2021, by and between the Company and Wilmington Trust, National Association, in its capacity as trustee thereunder (incorporated by reference to Exhibit 10.3 filed on the Company’s Current Report on Form 8-K, filed by the Company on May 12, 2021)
10.4	Amended and Restated Warrant Agreement, dated May 6, 2021, by and between the Company and Continental Stock Transfer & Trust Company, as warrant agent (incorporated by reference to Exhibit 10.4 filed on the Company’s Current Report on Form 8-K, filed by the Company on May 12, 2021)
10.5	Purchase Agreement, dated August 30, 2022, between the Company and Lincoln Park Capital Fund, LLC (incorporated by reference to Exhibit 10.1 filed on the Company’s Current Report on Form 8-K, filed by the Company on August 30, 2022)
31.1†	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2†	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

42

32.1**	Certification of Chief Executive Officer (Principal Executive Officer) and Chief Financial Officer (Principal Financial Officer) Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS	Inline XBRL Instance Document
101.SCH	Inline XBRL Taxonomy Extension Schema Document
101.CAL	Inline XBRL Taxonomy Calculation Linkbase Document
101.DEF	Inline XBRL Taxonomy Definition Linkbase Document
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document
104†	Cover Page Interactive Data File (formatted in iXBRL and contained in Exhibit 101)

_____________________________________

*Schedules and similar attachments to this exhibit have been omitted pursuant to Item 601(a)(5) of Regulation S-K and the Company agrees to furnish a copy of such omitted materials to the SEC upon request.

†Filed herewith.

#    Indicates a management contract or compensatory plan, contract or arrangement.

**Furnished herewith.

43

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Date: May 17, 2023

LIGHTNING EMOTORS, INC.
By:	/s/ Timothy Reeser
Name:	Timothy Reeser
Title:	Chief Executive Officer and President
	(Principal Executive Officer)
By:	/s/ David Agatston
Name:	David Agatston
Title:	Chief Financial Officer
	(Principal Financial Officer)

44

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, Timothy Reeser, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Lightning eMotors, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principle;

(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 17, 2023

By:	/s/ Timothy Reeser
Name:	Timothy Reeser
Title:	Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, David Agatston, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Lightning eMotors, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principle

(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 17, 2023

By:	/s/ David Agatston
Name:	David Agatston
Title:	Chief Financial Officer (Principal Financial Officer)

EX-32.1

Exhibit 32.1

Certification of CEO and CFO Pursuant to 18 U.S.C. Section 1350,

As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the quarterly report of Lightning eMotors, Inc. on Form 10-Q for the period ended March 31, 2023, as filed with the Securities and Exchange Commission on the date hereof, I, Timothy Reeser, hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

(1)The quarterly report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934, as amended; and

(2)The information contained in the quarterly report fairly presents, in all material respects, the financial condition and results of operations of Lightning eMotors, Inc.

In connection with the quarterly report of Lightning eMotors, Inc. on Form 10-Q for the period ended March 31, 2023, as filed with the Securities and Exchange Commission on the date hereof, I, David Agatston, hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

(1)The quarterly report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934, as amended; and

(2)The information contained in the quarterly report fairly presents, in all material respects, the financial condition and results of operations of Lightning eMotors, Inc.

Date: May 17, 2023

By:	/s/ Timothy Reeser
Name:	Timothy Reeser
Title:	Chief Executive Officer (Principal Executive Officer)

Date: May 17, 2023

By:	/s/ David Agatston
Name:	David Agatston
Title:	Chief Financial Officer (Principal Financial Officer)

The foregoing certification is being furnished pursuant to 18 U.S.C. Section 1350. It is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and it is not to be incorporated by reference into any filing of Lightning eMotors, Inc., regardless of any general incorporation language in such filing.

XML

Cover - shares	3 Months Ended
	Mar. 31, 2023	May 15, 2023
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	001-39283
Entity Registrant Name	Lightning eMotors, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	84-4605714
Entity Address, City or Town	Loveland
Entity Address, State or Province	CO
Entity Address, Address Line One	815 14th Street SW
Entity Address, Address Line Two	Suite A100
Entity Address, Postal Zip Code	80537
City Area Code	800
Local Phone Number	223-0740
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	ZEV
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		5,652,174
Entity Central Index Key	0001802749
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false
Redeemable Warrants, each full warrant exercisable for one share of Common stock at an exercise price of $230.00 per share
Title of 12(b) Security	Redeemable Warrants, each full warrant exercisable for one share of Common stock at an exercise price of $230.00 per share
Trading Symbol	ZEV.WS
Security Exchange Name	NYSE

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 35,447	$ 56,011
Accounts receivable, net of allowance of $2,989 and $2,028 as of March 31, 2023 and December 31, 2022, respectively	10,901	9,899
Inventories	46,988	47,066
Prepaid expenses and other current assets	7,826	9,401
Total current assets	101,162	122,377
Property and equipment, net	12,475	11,519
Operating lease right-of-use asset, net	7,411	7,735
Other assets	1,770	1,928
Total assets	122,818	143,559
Current liabilities
Accounts payable	5,228	7,961
Accrued expenses and other current liabilities	11,912	6,270
Warrant liability	54	60
Current portion of operating lease obligation	1,734	1,649
Total current liabilities	18,928	15,940
Long-term debt, net of debt discount	52,755	62,103
Operating lease obligation, net of current portion	7,262	7,735
Derivative liability	26	78
Earnout liability	1,859	2,265
Other long-term liabilities	851	880
Total liabilities	81,681	89,001
Commitments and contingencies (Note 13)
Stockholders’ equity
Preferred stock, par value $0.0001, 1,000,000 shares authorized and no shares issued and outstanding as of March 31, 2023 and December 31, 2022	0	0
Common stock, par value $0.0001, 250,000,000 shares authorized as of March 31, 2023 and December 31, 2022; 5,652,448 and 4,492,157 shares issued and outstanding as of March 31, 2023 and December 31, 2022, respectively	1	1
Additional paid-in capital	230,965	220,951
Accumulated deficit	(189,829)	(166,394)
Total stockholders’ equity	41,137	54,558
Total liabilities and stockholders’ equity	$ 122,818	$ 143,559

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 2,989	$ 2,028
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, authorized (in shares)	1,000,000	1,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, authorized (in shares)	250,000,000	250,000,000
Common stock, issued (in shares)	5,652,448	4,492,157
Common stock, outstanding (in shares)	5,652,448	4,492,157

XML

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenue, net of customer refunds	$ 1,311	$ 5,412
Cost of revenues	8,152	7,722
Gross loss	(6,841)	(2,310)
Operating expenses
Research and development	2,087	1,942
Selling, general and administrative	14,848	11,599
Total operating expenses	16,935	13,541
Loss from operations	(23,776)	(15,851)
Other (income) expense, net
Interest expense, net	3,129	3,861
(Gain) loss from change in fair value of warrant liabilities	(6)	(188)
(Gain) loss from change in fair value of derivative liability	(39)	(2,555)
(Gain) loss from change in earnout liability	(406)	(6,172)
Gain on extinguishment of debt	(2,965)	0
Other expense (income), net	(54)	(41)
Total other (income) expense, net	(341)	(5,095)
Net income (loss)	$ (23,435)	$ (10,756)
Net income (loss) per share, basic (in dollars per share)	$ (4.89)	$ (2.86)
Net income (loss) per share, diluted (in dollars per share)	$ (4.89)	$ (2.86)
Weighted-average shares outstanding, basic (in shares)	4,794,178	3,756,402
Weighted-average shares outstanding, diluted (in shares)	4,794,178	3,756,402

XML

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Conversion of Convertible Debt	Common Stock	Common Stock Conversion of Convertible Debt	Additional Paid-in Capital	Additional Paid-in Capital Conversion of Convertible Debt	Stockholders’ Accumulated Deficit
Balance, at beginning of period at Dec. 31, 2021	$ 25,212		$ 0		$ 206,776		$ (181,564)
Balance, at beginning of period (in shares) at Dec. 31, 2021			3,753,132
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options	6				6
Exercise of stock options (in shares)			1,222
Vesting of restricted stock units, net of taxes (in shares)			3,321
Stock-based compensation expense	972				972
Net income (loss)	(10,756)						(10,756)
Balance, at end of period at Mar. 31, 2022	15,434		$ 0		207,754		(192,320)
Balance, at end of period (in shares) at Mar. 31, 2022			3,757,675
Balance, at beginning of period at Dec. 31, 2022	54,558		$ 1		220,951		(166,394)
Balance, at beginning of period (in shares) at Dec. 31, 2022			4,492,157
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options	$ 7				7
Exercise of stock options (in shares)	6,744		6,744
Vesting of restricted stock units, net of taxes	$ (2)				(2)
Vesting of restricted stock units, net of taxes (in shares)			5,604
Stock-based compensation expense	1,442				1,442
Conversion of convertible notes payable		$ 8,567		$ 0		$ 8,567
Conversion of convertible notes payable (in shares)				1,147,943
Net income (loss)	(23,435)						(23,435)
Balance, at end of period at Mar. 31, 2023	$ 41,137		$ 1		$ 230,965		$ (189,829)
Balance, at end of period (in shares) at Mar. 31, 2023			5,652,448

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net income (loss)	$ (23,435)	$ (10,756)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	532	361
Provision for doubtful accounts	961	48
Provision for inventory obsolescence and write-downs	3,256	95
Gain on extinguishment of debt	(2,965)	0
Change in fair value of warrant liability	(6)	(188)
Change in fair value of earnout liability	(406)	(6,172)
Change in fair value of derivative liability	(39)	(2,555)
Stock-based compensation	1,442	972
Amortization of debt discount	2,171	2,119
Non-cash impact of operating lease right-of-use asset	324	267
Changes in operating assets and liabilities:
Accounts receivable	(1,963)	213
Inventories	(3,178)	(2,785)
Prepaid expenses and other assets	1,695	80
Accounts payable	(2,736)	(898)
Accrued expenses and other liabilities	5,496	3,057
Net cash used in operating activities	(18,851)	(16,142)
Cash flows from investing activities
Purchase of property and equipment	(1,673)	(2,024)
Net cash used in investing activities	(1,673)	(2,024)
Cash flows from financing activities
Payments on finance lease obligations	(45)	(15)
Proceeds from exercise of stock options	7	6
Tax withholding payment related to net settlement of equity awards	(2)	0
Net cash (used in) provided by financing activities	(40)	(9)
Net (decrease) increase in cash	(20,564)	(18,175)
Cash - Beginning of period	56,011	168,538
Cash - End of period	35,447	150,363
Supplemental cash flow information
Cash paid for interest	381	113
Significant noncash transactions
Property and equipment included in accounts payable and accruals	(223)	387
Finance lease right-of-use asset in exchange for a lease liability	0	183
Conversion of Convertible Debt
Significant noncash transactions
Conversion of convertible notes for common stock	$ 8,567	$ 0

XML

Description of Business and Basis of Presentations

3 Months Ended

Mar. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Description of Business and Basis of Presentation

Description of Business and Basis of Presentation

Lightning eMotors, Inc. (the “Company”, “Lightning”) designs and manufactures zero-emission vehicles (“ZEV”) and charging infrastructure solutions for commercial fleets, large enterprises, original equipment manufacturers, and governments. The Company’s product offerings range from electrified cargo vans, transit and shuttle buses, school buses, specialty work trucks, ambulances, mobile and stationary chargers and electric powertrains for school buses, transit buses and motorcoaches. The Company operates predominately in the United States.

On May 6, 2021, GigCapital3, Inc. (“Gig”), consummated the merger pursuant to the Business Combination Agreement, dated December 10, 2020, by and among Project Power Merger Sub, Inc., a wholly-owned subsidiary of Gig incorporated in the State of Delaware, and Lightning Systems, Inc., a Delaware corporation (“Lightning Systems”) (the “Business Combination”). On May 6. 2021, and in connection with the closing of the Business Combination, Gig changed its name to Lightning eMotors, Inc.

The accompanying consolidated financial statements have been prepared in accordance with U.S. Generally Accepted Accounting Principles (“GAAP”) and pursuant to the regulations of the U.S. Securities and Exchange Commission (“SEC”). The unaudited financial information reflects, in the opinion of management, all adjustments, consisting of normal recurring adjustments, considered necessary for a fair statement of the Company’s financial position, results of operations and cash flows for the periods indicated. The results reported for the interim period presented are not necessarily indicative of results that may be expected for the full year. These consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022.

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. Intercompany accounts and transactions have been eliminated.

Reverse Stock Split

The Company effected a 1-for-20 reverse stock split (the “Reverse Stock Split”) of the Company’s issued and outstanding shares of common stock, par value $0.0001 per share, effective as of 5:00 p.m. Eastern Time on April 27, 2023. As a result of the Reverse Stock Split, every twenty shares of common stock issued and outstanding were automatically reclassified into one share of common stock. The Reverse Stock Split did not reduce the number of authorized shares of common stock of 250,000,000, or change the par value of the common stock. All outstanding options, warrants, restricted stock units and similar securities entitling their holders to receive or purchase shares of common stock were adjusted as a result of the Reverse Stock Split, as required by the terms of each security. All share and per share amounts were retroactively adjusted for all periods presented to give effect to this reverse stock split, including reclassifying an amount equal to the reduction in par value of the Company’s common stock to additional paid-in capital. See Note 14 for additional information.

Liquidity and Capital

As of March 31, 2023, the Company had $35,447 in cash and cash equivalents. For the three months ended March 31, 2023, the net loss of the Company amounted to $23,435. Cash used in operating activities was $18,851 for the three months ended March 31, 2023. The Company had positive working capital of $82,234 as of March 31, 2023. The current and historical operating cash flows, current cash and working capital balances, and forecasted obligations of the Company were considered in connection with management’s evaluation of the Company’s ongoing liquidity.

The Company has suffered recurring losses from operations. The continuation of the Company as a going concern is dependent upon the Company attaining and maintaining profitable operations and/or raising additional capital from public offerings, debt financings or other capital markets transactions, collaborations or licensing arrangements. There can be no assurance that the Company will be successful in raising additional capital or that such capital, if available, will be on terms that are acceptable to the Company.

The Company has secured and intend to employ various strategies to obtain the required funding for future operations such as accessing capital through the Company's ELOC Agreement with Lincoln Park Capital, LLC. However, the ability to access the ELOC Agreement is dependent on common stock trading volumes and the market price of the Company's common stock, which cannot be assured, and as a result cannot be included as sources of liquidity for the Company's ASC 205-40 analysis. As of March 31, 2023 and through the date of this filing, the Company has not sold any shares of common stock to Lincoln Park under the ELOC Agreement.

If capital is not available to the Company when, and in the amounts needed, the Company could be required to delay, scale back, or abandon some or all of the Company's development programs and operations, which could materially harm the Company's business, financial condition and results of operations. The result of the Company's ASC 205-40 analysis, due to uncertainties discussed above, there is substantial doubt about the Company's ability to continue as a going concern through the next twelve months from the date of issuance of these consolidated financial statements.

These consolidated financial statements have been prepared by management in accordance with GAAP and this basis assumes that the Company will continue as a going concern, which contemplates the realization of assets and the satisfaction of liabilities and commitments in the normal course of business.

XML

Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Use of estimates

The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. The Company’s most significant estimates and judgments involve deferred income taxes, provision for credit losses, warranty liability, write downs and write offs of obsolete and damaged inventory and valuations of share-based compensation, warrant liability, convertible note derivative liability and earnout share liability. Management bases its estimates on historical experience and on various other assumptions believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from those estimates, and such differences could be material to the Company’s financial statements.

Segment information

ASC 280, Segment Reporting, defines operating segments as components of an enterprise where discrete financial information is available that is evaluated regularly by the chief operating decision-maker (“CODM”) in deciding how to allocate resources and in assessing performance. The Company operates as a single operating segment. The Company’s CODM is the Chief Executive Officer, who has ultimate responsibility for the operating performance of the Company and the allocation of resources. The CODM uses Company forecasts, a financial and operations dashboard, and cash flows as the primary measures to manage the business and does not segment the business for internal reporting or decision making.

Concentrations of credit risk

As of March 31, 2023, two customers accounted for 31% and 18% of the Company’s total accounts receivable. As of December 31, 2022, two customers accounted for 40% and 25% of total accounts receivable. The net sales to the following customers comprised more than 10% of revenues for the periods presented.

	Three Months Ended March 31,
	2023				2022
	Net Sales		% of Revenue		Net Sales		% of Revenue
Customer A	$	830	23	%	$	—	—	%
Customer B	788		22	%	—		—	%
Customer C	—		—	%	1,478		27	%
Customer D	—		—	%	1,965		36	%
Customer E	—		—	%	720		13	%
Total of customers with sales greater than 10%	$	1,618	45	%	$	4,163	76	%
Total of customers with sales less than 10%	1,948		55	%	1,249		24	%
Gross Revenue	$	3,566	100	%	$	5,412	100	%
Customer refunds(1)	(2,255)				—
Total Revenue, net of customer refunds	$	1,311			$	5,412

(1)    Customer refunds are related to the recall for certain 2021-2022 model year FE4-129 vehicles (“ZEV4”) that were manufactured with Romeo Power Systems, Inc (“Romeo”) battery packs. See section “Revenue Recognition” below for more detail concerning the accounting treatment and the section “Warranties and Recall Campaigns” for more detail on the recall.

Concentrations of supplier risk

As of March 31, 2023, one supplier accounted for 21% of the Company’s total accounts payable. As of December 31, 2022, two suppliers accounted for 20% and 15% of the Company’s total accounts payable. For the three months ended March 31, 2023, two suppliers accounted for 18% and 14% of inventory purchases. For the three months ended March 31, 2022, one supplier accounted for 13% of inventory purchases.

Cash and cash equivalents

Cash and cash equivalents include cash held in banks and in money market funds. The Company’s cash and cash equivalents are placed with high-credit-quality financial institutions and issuers, and at times exceed federally insured limits. To date, the Company has not experienced any credit loss relating to its cash and cash equivalents. The carrying value of the cash equivalents approximates fair value, which represents a Level 1 input.

Accounts receivable

Accounts receivable are recorded at invoiced amounts, net of discounts, and allowances. The Company grants credit in the normal course of business to its customers. The Company periodically performs credit analyses and monitors the financial condition of its customers to reduce credit risk. The Company reduces the carrying value for estimated uncollectible accounts based on a variety of factors including the length of time receivables are past due, economic trends and conditions affecting the Company’s customer base, and historical collection experience. Specific provisions are recorded for individual receivables when the Company becomes aware of a customer’s inability to meet its financial obligations. The

Company writes off accounts receivable when they are deemed uncollectible. The following table details the change in the allowance for credit losses for the periods indicated:

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	2,028	$	3,349
Credit loss expense	961		48
Deductions	—		—
Balance at end of period	$	2,989	$	3,397

Inventories

Inventories consist of raw materials, work in progress, and finished goods and are stated at the lower of cost or net realizable value, with cost determined on the average cost method. A valuation adjustment is made to inventory for any excess, obsolete or slow-moving items based on management’s review of on-hand inventories compared to historical and estimated future sales and usage profiles.

Property and equipment

Property and equipment is stated at cost, less accumulated depreciation. Depreciation is provided using the straight-line method over the estimated useful asset lives. Leasehold improvements are stated at cost and amortized on the straight-line basis over their estimated economic useful lives or the lease term, whichever is shorter. Costs of enhancements or modifications that substantially extend the capacity or useful life of an asset are capitalized and depreciated accordingly. Ordinary repairs and maintenance are expensed as incurred. Depreciation is included in the consolidated statements of operations in “Cost of revenues”, “Research and development” and “Selling, general and administrative.” When property is retired or otherwise disposed of, the cost and accumulated depreciation are removed from the consolidated balance sheets and the resulting gain or loss, if any, is reflected in “Other income, net.” The estimated useful lives of the Company’s major classes of property and equipment are as follows:

Major Class of Property and Equipment	Estimated Useful Lives
Machinery and equipment	7 years
Vehicles	5 years
Leasehold improvements	5 years
Computer equipment	3 years
Software	3 years
Furniture and fixtures	7 years

Impairment of long-lived assets

Long-lived assets to be held and used in the Company’s operations are evaluated for impairment when events or circumstances indicate the carrying value of a long-lived asset or asset group is less than the undiscounted cash flows from its use and eventual disposition over its remaining economic life. The Company assesses recoverability by comparing the sum of projected undiscounted cash flows from the use and eventual disposition over the remaining economic life of a long-lived asset or asset group to its carrying value, and records a loss from impairment if the carrying value is more than its undiscounted cash flows. Assets or asset groups to be abandoned or from which no future benefit is expected are written down to zero in the period it is determined they will no longer be used and are removed entirely from service. There were no impairments of long-lived assets recognized during the three months ended March 31, 2023 and 2022.

Revenue recognition

Revenue Summary

The following table disaggregates revenue by major source:

	Three Months Ended March 31,
	2023		2022
ZEVs	$	3,222	$	5,179
Other	344		233
Gross Revenue	$	3,566	$	5,412
Customer refunds(1)	(2,255)		—
Total Revenue, net of customer refunds	$	1,311	$	5,412

(1) Customer refunds are related to the recall for ZEV4 vehicles that were manufactured with Romeo battery packs.

The Company manufactures and sells ZEVs, such as delivery vans and buses. The Company manufactures ZEVs by removing the internal combustion engine and certain associated components (collectively, “decontented parts”) and installing and integrating its internally-developed, zero-emission powertrain into a vehicle chassis supplied by original equipment manufacturer (“OEM”) partners or from the customer. At times, the Company also installs and integrates its zero-emission powertrains into a used vehicle chassis supplied by the customer (“repower”).

The Company recognizes revenue at a point in time when its performance obligation has been satisfied and control of the ZEV or zero-emission powertrain is transferred to the customer, which generally aligns with shipping terms. Contract shipping terms include ExWorks (“EXW”), “FOB Shipping Point” and “FOB Destination” all as defined in the Incoterms. Under EXW (meaning the seller fulfills its obligation to deliver when it makes goods available at its premises, or another specified location, for the buyer to collect), the performance obligation is satisfied and control is transferred at the point when the customer is notified that the ZEV is available for pickup. Under “FOB Shipping Point,” control is transferred to the customer at the time the good is transferred to the shipper and under “FOB Destination,” at the time the good is delivered to a customer’s specified delivery location. At times, the Company sells ZEVs that require additional upfitting from a third party before the final sale to the customer. The Company is acting as the principal in such transactions and revenue is recognized on a gross basis.

Other revenue primarily includes the sale of stand-alone zero-emission powertrains, charging systems, engineering consulting services, telematics and analytics subscription services and decontented parts. Revenue for zero-emission powertrains, chargers and decontented parts is generally recognized based on contract shipping terms. At times, chargers may be drop shipped directly to the customer from the manufacturer, in which revenue is recognized at the time of shipment. The Company is acting as the principal in such transactions and revenue is recognized on a gross basis. Services are recognized as revenue over time as either percentage of completion (i.e. engineering service contracts) or as the service is transferred to the customer (i.e. telematics and analytics subscription services).

The Company made an accounting policy election to account for any shipping and handling costs that occur after control has transferred to the customer as fulfillment costs that are accrued to cost of revenues at the time control transfers. Shipping and handling costs billed to customers are initially recorded in deferred revenue and recognized as revenue once shipping is complete.

The Company often applies for governmental funding programs, including California’s Hybrid and Zero Emission Truck and Bus Voucher Incentive Project (“HVIP”), on behalf of its customers for ZEV sales. Generally, as a condition of the program, the amount billed to the customer must be reduced by the amount that will be funded by the government program, and the Company will receive the funds directly from the government program. However, the discount to the customer is contingent upon the Company’s receipt of the funding. Revenue is recognized on the gross amount of the ZEV at the time substantially all of the conditions of the government program required of the Company have been met and control of the ZEV has transferred to the customer based on shipping terms.

The following economic factors affect the nature, amount, timing, and uncertainty of the Company’s revenue and cash flows as indicated:

•Type of customer: The Company’s sales are directly to commercial fleet customers, OEMs, governments and dealers.

•Type of contract: Sales contracts are for goods or services. The majority of contracts are short term (i.e., less than or equal to one year in duration).

Significant Payment Terms

None of the Company’s contracts have a significant financing component. Any cash that is received prior to revenue recognition is deferred as deferred revenue (a contract liability) until the good is delivered or service is rendered. Payment terms are identified when the contract has commercial substance and collectability of consideration is probable. The Company generally utilizes payment terms of a twenty percent deposit once a contract is executed with the remainder due upon receipt.

Contract Liabilities

Contract liabilities relate to payments received in advance of performance obligations under the contract and are realized when the associated revenue is recognized under the contracts. The Company’s contract liabilities consist of customer deposits and deferred revenue, of which current amounts are included in “Accrued expenses and other current liabilities” and long-term amounts are included in “Other long-term liabilities” on the consolidated balance sheets. Changes in contract liabilities are as follows:

Balance as of December 31, 2022	$	794
Revenues recognized	(520)
Increase due to billings	623
Balance as of March 31, 2023	$	897

Returns and Refunds

Based on our standard terms and conditions, consideration paid for goods and/or services that customers purchase from the Company are nonrefundable. Therefore, at the time revenue is recognized, the Company does not estimate expected refunds for goods or services, nor does the Company exclude any such amounts from revenue.

However, during the quarter ended March 31, 2023 and as special consideration to those customers impacted by the Romeo battery recall, the Company extended an offer to allow a return and refund for the affected ZEV4s. The Company applied a reserve for estimated refunds based on known pending refunds and reduced sales in the current quarter accordingly. The Company initially recorded, on a gross basis, a refund liability in the amount of $5,037 and inventory in the amount of $2,171. The total refund liability associated with ZEV4 recalls was $3,228 as of March 31, 2023, which is included in accrued expenses and other current liabilities on the consolidated balance sheets. In some instances, the refund paid to customers exceeded the original transaction price and value of goods to be received (“Accommodation”), representing consideration payable to the customer. The Company recorded the Accommodation as an asset and will derecognize the asset as a reduction to the future revenues that will be recognized from orders placed by that customer, which were associated with the Accommodation. During the quarter ended March 31, 2023, the Company recorded an Accommodation in the amount of $611 and this amount is included in prepaid expenses and other current assets on the consolidated balance sheets. The Company expects the Accommodation asset to be derecognized over the remainder of the year ended 2023 as orders associated with the Accommodation are completed and gross revenue is recognized.

Transaction Price

The transaction price of a contract is the amount of consideration to which the Company expects to be entitled in exchange for transferring promised goods to a customer. Transaction prices do not include amounts collected on behalf of third parties (e.g., sales taxes). Sales taxes collected on sales are recorded as a sales tax liability and are included in “Accrued expenses and other current liabilities.”

To determine the transaction price of a contract, the Company considers its customary business practices and the terms of the contract. For the purpose of determining transaction prices, the Company assumes that the goods and/or services will be transferred to the customer as promised in accordance with existing contracts and that the contracts will not be canceled,

renewed, or modified. The Company’s revenue terms do not include retrospective or prospective volume discounts, rights of return, rebates, performance bonuses or other forms of variable consideration.

The Company’s contracts with customers have fixed transaction prices that are denominated in U.S. dollars and payable in cash.

Future Performance Obligations

The Company has applied the practical expedient to exclude the value of remaining performance obligations for (i) contracts with an original term of one year or less and (ii) contracts for which the Company recognizes revenue in proportion to the amount it has the right to invoice for services performed (i.e. analytical data subscription services).

As of March 31, 2023, the Company had remaining performance obligations related to a non-cancellable (other than for a breach by the Company) minimum-quantity purchase commitment. The customer is obligated to purchase a fixed number of ZEVs through December 31, 2023. The Company estimates that the future revenues associated with this contract (based on estimated orders from the customer) will be $10,500 in 2023. The timing of the revenue associated with these estimates will change if the ZEVs are commissioned and/or shipped subsequent to the year in which they were ordered, as revenue will not be recognized until control of the ZEV transfers to the customer based on the purchase order shipping terms.

As of March 31, 2023, the Company also had $206 of remaining performance obligations related to unsatisfied extended warranty performance obligations the Company expects to recognize ratably from approximately September 2027 through August 2030.

Costs to Obtain or Fulfill a Contract with a Customer

The Company has elected the practical expedient to expense contract acquisition costs, which consist of sales commissions, which are reported within “Selling, general and administrative” expenses.

Warranties and Recall Campaigns

Warranties

All ZEVs that customers purchase from the Company are covered by five-year and 60-thousand-mile limited product warranties. At the time revenue is recognized, the Company estimates the cost of expected future warranty claims and accrues estimated future warranty costs based upon the history of warranty claims. The Company periodically reviews the adequacy of its product warranties and adjusts, if necessary, the warranty estimate and accrued warranty liability for actual historical experience. The warranty liability is included in “Accrued expenses and other current liabilities” and the cost of warranties is included in “Cost of revenues.”

At times, the Company may sell its ZEVs with an extended product warranty, with coverage beyond the five-year and 60-thousand-mile limited standard warranty. The Company considers these extended warranties to be separate performance obligations. The consideration allocated to the extended warranty is deferred and recognized over the term of the extended warranty. The Company’s deferred revenue associated with extended warranties is currently all classified as long-term within “Other long-term liabilities.”

Recall Campaigns

The Company records product recall reserves when a liability is probable and the related amounts are reasonably estimable.

On December 16, 2022, the Company initiated a voluntary recall for certain 2021-2022 model year Lightning eMotors ZEV4 vehicles due to multiple software and hardware discrepancies internal to the Romeo battery packs installed in the ZEV4 series vehicles. The affected vehicles may fail to operate in cold temperatures, fail to start, or may lose traction power while driving, increasing the risk of an accident. Romeo has been formally notified of the recall; however, Romeo has not reached a solution to honor their battery warranty. See Note 13 under the section “Legal Proceedings”. The Company’s current remedy is to either replace the ZEV4 manufactured with Romeo battery packs with updated ZEV4 models manufactured with Proterra battery packs or to refund full value of the purchase price to the customer. The Company will seek to recover the costs and expenses associated with the recall from Romeo.

On March 27, 2023, the Company initiated a voluntary recall for certain model year 2020 FT3-43, 2019-2022 FT3-86, 2020 FE4-86 and 2019-2021 FE4-129 vehicles equipped with eMatrix battery packs. Defective structural welds and internal radiator leaks have been found in the battery packs which may result in isolation faults and cell imbalances. The affected vehicles may lose traction power, increasing the potential for collisions or experience a thermal runaway which could result in vehicle fires. The Company is currently working with eMatrix, the battery manufacturer, to develop a remedy for the structural welds and internal radiator leaks. Because the remedy is still being developed, the Company is unable to reasonably estimate a range of the potential losses associated with the recall.

Fair value, measurements, and financial instruments

A fair value hierarchy was established that prioritizes fair value measurements based on the types of inputs used for the various valuation techniques (market approach, income approach, and cost approach). The Company’s financial assets and liabilities are measured using inputs from the three levels of the fair value hierarchy. The three levels of the hierarchy and the related inputs are as follows:

•Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the Company can access at the measurement date.

•Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data.

•Level 3: Significant unobservable inputs that reflect the Company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

An asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs. Assets and liabilities measured at fair value are based on one or more of the following three valuation techniques:

•Market approach: Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.

•Cost approach: Amount that would be required to replace the service capacity of an asset (replacement cost).

•Income approach: Techniques to convert future amounts to a single present value amount based upon market expectations (including present value techniques, option pricing and excess earnings models).

The Company believes its valuation methods are appropriate and consistent with other market participants, however, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. The Company’s recurring fair value measurements categorized within Level 3 discussed below contain significant unobservable inputs. A change in those significant unobservable inputs could result in a significantly higher or lower fair value measurement at the reporting date.

The Company’s financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable, accrued liabilities, warrant liabilities, long-term debt, derivative liabilities and earnout liabilities. The carrying value of cash, accounts receivable, accounts payable, and accrued liabilities approximate fair value because of the short-term nature of those instruments.

Long-term debt is not presented at fair value on the consolidated balance sheets, as it is recorded at carrying value, net of unamortized debt discounts. However, the 7.5% $100,000 convertible senior note (the “Convertible Note”) has an embedded conversion option accounted for as a derivative liability, which is presented at fair value on the consolidated balance sheets. The fair value of the Convertible Note, including the conversion option, was $49,167 and $58,155 as of March 31, 2023 and December 31, 2022, respectively. The Company’s term note and working capital facility (“Facility”) had an outstanding term note with a principal amount of $3,000 as of both March 31, 2023 and December 31, 2022 and a fair value of $3,106 and $3,125 as of March 31, 2023 and December 31, 2022, respectively.

The following tables set forth by level within the fair value hierarchy the Company’s financial assets and liabilities that were measured at fair value on a recurring basis in the consolidated balance sheets.

	Level 1		Level 2		Level 3
As of March 31, 2023
Financial assets
Cash equivalents	$	31,768	$	—	$	—
Financial Liabilities
Warrant liability	$	—	$	—	$	54
Derivative liability	—		—		26
Earnout liability	—		—		1,859
As of December 31, 2022
Financial assets
Cash equivalents	$	51,351	$	—	$	—
Financial Liabilities
Warrant liability	$	—	$	—	$	60
Derivative liability	—		—		78
Earnout liability	—		—		2,265

As of March 31, 2023 and December 31, 2022, the Company had cash equivalents held in a money market account. The Company has concluded that due to the highly liquid nature of the money market account, the carrying value approximates fair value, which represents a Level 1 input.

As a result of the Business Combination, the Company assumed the liability associated with the Gig warrants. The Company accounts for the warrants as liabilities at fair value with subsequent changes in fair value recorded in the statement of operations for each reporting period. The fair value is determined using the Black-Scholes-Merton option-pricing model (“BSM”) where the share price input represents the Company’s stock price as of the valuation date. The BSM is a commonly-used mathematical model for pricing an option or warrant. In particular, the model estimates the variation in value over time of financial instruments. The fair value measurements are considered Level 3 measurements within the fair value hierarchy.

The Company estimates the fair value of its derivative liability associated with the Convertible Note at each reporting date, as well as at each conversion date. The Convertible Note and embedded conversion option are valued using a Binomial Lattice Model designed to capture incremental value attributed to the conversion options in addition to the value of the Convertible Note. The value of the Convertible Note without the conversion feature is valued utilizing the income approach, specifically the discounted cash flow method. Cash flows are discounted utilizing the U.S. Treasury rate and the credit spread to estimate the appropriate risk-adjusted rate. The conversion feature utilizes the Company’s stock price as of the valuation date as the starting point of the valuation. A Binomial Lattice Model is used to estimate a credit spread by solving for a premium to the U.S. Treasury rate that produces a value of the Convertible Note. As of issuance, the value of the Convertible Note and warrants related to the Convertible Note were set to equal $100,000 to solve for the credit spread which is then updated quarterly. The fair value measurements are considered Level 3 measurements within the fair value hierarchy.

As a result of the Business Combination, the Company recognized additional earnout shares with performance conditions as a liability measured at fair value with subsequent changes in fair value recorded in the consolidated statement of operations for each reporting period. The earnout shares are valued using the Company’s stock price as of the valuation date. The valuation methodology used is a Monte Carlo Simulation model (“MCS”) utilizing a Geometric Brownian motion process to capture meeting the various performance conditions. MCS is a technique that uses a stochastic process to create a range of potential future outcomes given a variety of inputs. Stochastic processes involve the use of both predictive assumptions (e.g., volatility, risk-free rate) and random numbers to create potential outcomes of value. MCS assumes that stock prices take a random walk and cannot be predicted; therefore, random number generators are used to create random outcomes for stock prices. The fair value measurements are considered Level 3 measurements within the fair value hierarchy.

The Company’s non-financial assets, which primarily consist of property and equipment, are not required to be carried at fair value on a recurring basis and are reported at carrying value. However, on a periodic basis or whenever events or changes in circumstances indicate that their carrying value may not be fully recoverable, these along with other non-financial instruments are assessed for impairment and, if applicable, written down to and recorded at fair value.

Beneficial conversion features

The Company followed the beneficial conversion feature guidance in ASC 470-20, Debt with Conversion and Other Options, which applies to redeemable convertible preferred stock and convertible debt. A beneficial conversion feature is defined as a nondetachable conversion feature that is in the money at the commitment date.

The beneficial conversion feature guidance requires recognition of the conversion option’s in-the-money portion, the intrinsic value of the option, in equity, with an offsetting reduction to the carrying amount of the instrument. The resulting discount is amortized as interest over the life of the instrument. When there is a subsequent change to the conversion ratio based on a future occurrence, the new conversion price may trigger the recognition of an additional beneficial conversion feature on occurrence.

As a result of the Business Combination, the unamortized portion of the beneficial conversion feature was recorded to additional paid-in capital.

Stock-based compensation

The Company accounts for share-based compensation in accordance with ASC 718, Compensation – Stock Compensation, under which share based payments that involve the issuance of common stock to employees and non-employees and meet the criteria for equity-classified awards are recognized in the financial statements as share-based compensation expense based on the fair value on the date of grant. The Company issues stock option awards and restricted stock unit awards to employees and non-employees.

The Company utilizes the Black-Scholes model to determine the fair value of the stock option awards, which requires the input of subjective assumptions. These assumptions include estimating (a) the length of time grantees will retain their vested stock options before exercising them for employees and the contractual term of the option for non-employees (“expected term”), (b) the volatility of the Company’s common stock price over the expected term, (c) expected dividends, and (d) the fair value of a share of common stock prior to the Business Combination. After the closing of the Business Combination, the Company’s board of directors determined the fair value of each share of common stock underlying stock-based awards based on the closing price of the Company’s common stock as reported by the NYSE on the date of grant. The Company has elected to recognize the adjustment to share-based compensation expense in the period in which forfeitures occur.

The assumptions used in the Black-Scholes model are management’s best estimates, but the estimates involve inherent uncertainties and the application of management judgment (see Note 10). As a result, if other assumptions had been used, the recorded share-based compensation expense could have been materially different from that recorded in the financial statements.

Warrants and Warrant liabilities

As a result of the Business Combination, the Company assumed the liability associated with the Gig warrants. The Company accounts for the warrants for shares of the Company’s common stock that are not indexed to its own stock as liabilities at fair value on the consolidated balance sheets. The warrants are subject to remeasurement at each balance sheet date and any change in fair value is recognized as a “(Gain) loss from change in fair value of warrant liabilities” in the consolidated statements of operations. The Company will continue to adjust the liability for changes in fair value until the earlier of the exercise or expiration of the common stock warrants. At that time, the portion of the warrant liability related to the common stock warrants will be reclassified to “Additional paid-in capital”.

Research and development

Research and development costs are primarily expensed when incurred and consist of personnel-related expenses including salaries, benefits, travel and stock-based compensation for personnel performing research and development activities; expenses related to materials, supplies and testing; and consulting and occupancy expenses. In addition, costs for certain property and equipment utilized for research and development are capitalized and depreciated to “Research and development” over the useful life of the asset based on the property and equipment policy discussed above.

Advertising

Advertising costs are expensed when incurred and are included in “Selling, general and administrative” expenses and total $214 and $116 for the three months ended March 31, 2023 and 2022, respectively.

Derivative Liability

The Company accounts for the embedded conversion feature of the Convertible Note as a derivative liability. Pursuant to ASC 815-15, Derivatives and Hedging – Embedded Derivatives, the embedded conversion feature meets all three criteria to be bifurcated and accounted for separately from the host instrument, i.e., the Convertible Notes. Because this feature meets all criteria of a derivative instrument, it was accounted for and recorded as a derivative liability at fair value on the Company’s balance sheet with subsequent changes in fair value recorded in the consolidated statement of operations each reporting period.

Earnout Liability

As a result of the Business Combination, the Company recognized additional earnout shares as a liability. Pursuant to ASC 805, Business Combinations, the initial fair value of the earnout shares was recorded as a liability with the offset going to additional paid-in capital and with subsequent changes in fair value recorded in the consolidated statement of operations for each reporting period. The following table provides a reconciliation of the beginning and ending balances for the earnout liability measured at fair value using significant unobservable inputs (Level 3):

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	2,265	$	83,144
(Gain) loss	(406)		(6,172)
Balance at end of period	$	1,859	$	76,972

Income taxes

Income taxes are accounted for using the asset and liability method which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the carrying amounts and the tax basis of other assets and liabilities. The Company provides for income taxes at the current and future enacted tax rates and laws applicable in each taxing jurisdiction. The Company uses a two-step approach for recognizing and measuring tax benefits taken or expected to be taken in a tax return and disclosures regarding uncertainties in income tax positions. The Company recognizes interest and penalties related to income tax matters in income tax expense in the consolidated statement of operations.

Earnings per share

Basic earnings (loss) per share (“EPS”) are computed by dividing net earnings (loss) by the weighted average number of common shares outstanding for the period. Diluted EPS attributable to common shareholders is computed by adjusting net earnings by the weighted average number of common shares and potential common shares outstanding (if dilutive) during each period. Potential common shares include shares issuable upon exercise of stock options and vesting of restricted stock awards. Anti-dilutive securities are excluded from diluted EPS.

The Company applies the treasury stock method to account for the dilutive impact of its options, warrants and restricted stock units and the if converted method for its Convertible Note.

Recent accounting pronouncements issued and adopted

In June 2016, the Financial Accounting Standards Board issued Accounting Standards Update (“ASU”) 2016-13 related to the measurement of credit losses on financial instruments and has since modified the standard with several ASUs (collectively, the “credit loss standard”). The credit loss standard requires a financial asset (or a group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of the reported amount. The credit loss standard took effect for public entities for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. As amended in ASU 2019-10, for smaller reporting companies, the credit loss standard will take effect for fiscal years beginning after December 15, 2022, and for interim periods within those fiscal years. The adoption of this ASU will require a cumulative-effect adjustment to accumulated deficit as of the beginning of the first reporting period in which the guidance is effective (that is, a modified-retrospective approach). The Company adopted this standard on January 1, 2023, and this ASU did not have a material impact to the Company’s financial statements.

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Inventories

3 Months Ended

Mar. 31, 2023

Inventory Disclosure [Abstract]

Inventories

Inventories

At March 31, 2023 and December 31, 2022, inventories consist of the following:

	March 31, 2023		December 31, 2022
Raw materials	$	27,866	$	30,763
Work in progress	4,104		3,357
Finished goods	15,018		12,946
Total inventories	$	46,988	$	47,066

The Company reduced the cost of certain inventory to net realizable value by $3,256 and $95 during the three months ended March 31, 2023 and 2022, respectively, which was recorded in “Cost of revenues.”

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Prepaid Expenses and Other Current Assets

3 Months Ended

Mar. 31, 2023

Prepaid Expense and Other Assets, Current [Abstract]

Prepaid Expenses and Other Current Assets

Prepaid Expenses and Other Current Assets

At March 31, 2023 and December 31, 2022, prepaid expenses and other current assets consist of the following:

	March 31, 2023		December 31, 2022
Vendor deposits	$	4,473	$	4,447
Prepaid insurance	1,021		2,367
Other prepaid expenses	2,309		2,559
Other current assets	23		28
Total prepaid expenses and other current assets	$	7,826	$	9,401

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Property and Equipment

3 Months Ended

Mar. 31, 2023

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and Equipment

Cost and accumulated depreciation as of March 31, 2023 and December 31, 2022 are as follows:

	March 31, 2023		December 31, 2022
Machinery and equipment	$	3,173	$	2,945
Vehicles	3,988		3,634
Leasehold improvements	3,355		3,660
Computer equipment	702		688
Software	11		11
Furniture and fixtures	1,086		969
Capital projects in progress	3,360		2,317
Total cost	15,675		14,224
Accumulated depreciation and amortization	(3,200)		(2,705)
Total property and equipment, net	$	12,475	$	11,519

Depreciation and amortization expense associated with property and equipment is as follows for the periods indicated:

	Three Months Ended March 31,
	2023		2022
Cost of revenues	$	159	$	85
Research and development	15		92
Selling, general and administrative	320		179
Total depreciation and amortization expense	$	494	$	356

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Accrued Expenses and Other Current Liabilities

3 Months Ended

Mar. 31, 2023

Payables and Accruals [Abstract]

Accrued Expenses and Other Current Liabilities

Accrued Expenses and Other Current Liabilities

At March 31, 2023 and December 31, 2022, accrued expenses and other current liabilities consist of the following:

	March 31, 2023		December 31, 2022
Accrued professional services	$	1,077	$	597
Accrued interest	1,684		806
Accrued payroll and benefits	2,197		1,451
Other accrued expense	1,072		1,436
Warranty liability	1,851		1,268
Refund liability	3,228		—
Customer deposits	530		427
Deferred revenue	92		106
Current portion of finance lease obligation	181		179
Total accrued expenses and other current liabilities	$	11,912	$	6,270

Changes in warranty liability (included in accrued expenses and other current liabilities) were as follows:

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	1,268	$	994
Charge for the period	558		252
Utilized during the period	25		(55)
Balance at end of period	$	1,851	$	1,191

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Notes Payable

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Notes Payable

Notes Payable

Notes payable as of March 31, 2023 and December 31, 2022 consist of the following:

	March 31, 2023		December 31, 2022
Convertible Note	$	59,863	$	73,863
Facility	3,000		3,000
Total debt principal	62,863		76,863
Unamortized debt discount - Convertible Note	(10,086)		(14,735)
Unamortized debt discount - Facility	(22)		(25)
Total long-term debt	$	52,755	$	62,103

Convertible Note

In conjunction with the Business Combination, the Company entered into the 7.5% $100,000 Convertible Note and paid issuance costs of $5,000. The Convertible Note has a maturity date of May 15, 2024 and has semi-annual interest payments due May 15 and November 15 of each year starting on November 15, 2021. The Convertible Note has a conversion feature at a conversion price of $230.00 and warrants to purchase up to 434,782 shares of common stock for a per share price of $230.00. The Convertible Note has a mandatory conversion option that: a) is exercisable at the option of the Company on or after May 15, 2022; b) occurs when the Company’s stock price (1) is greater than 120% of the conversion price of $230.00, or $276.00 for 20 trading days in a period of 30 consecutive trading days and (2) the 30-day average daily trading volume during the applicable exercise period, i.e., consecutive 30 trading day period, is greater than or equal to $3,000; and c) the Company will make payments in accordance with the interest make-whole (defined below) amount in cash or issuance of additional shares of the Company’s common stock.

The interest make-whole amount means, with respect to the conversion of the Convertible Note, in an amount denominated in U.S. dollars, the sum of all regularly scheduled interest payments, if any, due on such Convertible Note on each interest payment date occurring after the conversion date for such conversion and on or before the maturity date; provided, however, that (A) for these purposes, the amount of interest due on the interest payment date immediately after such conversion date will be deemed to be the following amount: any accrued and unpaid interest, if any, at such conversion date, plus any remaining amounts that would be owed to, but excluding, the maturity date in respect of such Convertible Note, including all regularly scheduled interest payments; and (B) if such conversion date occurs after the Company has sent a mandatory conversion notice, then the interest make-whole amount for such conversion shall be the sum of all regularly scheduled interest payments, if any, due on such Convertible Note on each interest payment date occurring after the conversion date for such conversion to, but excluding, the maturity date.

If the Company incurs other unpermitted indebtedness, it is required to redeem the Convertible Notes in full including outstanding principal and accrued and unpaid interest, plus a prepayment premium equal to the amount of interest which would have accrued on the Convertible Notes through maturity (the “Redemption Feature”). In addition, the Company is required to issue to the holders a fixed number of warrants to purchase shares of Common Stock. The fixed number of warrants will be based on the principal balance of the Convertible Notes, divided by $230.00 (“Redemption Warrants”). The Redemption Warrants will be exercisable from the date of repayment of the Convertible Notes through the original maturity date of the Convertible Notes.

If the number of outstanding shares of Common Stock is increased by a stock split or other similar event, the number of shares issuable on exercise of each warrant shall be increased proportionately and the exercise price shall be decreased proportionately. Consequently, if the number of outstanding shares of Common Stock is decreased by a reverse stock split, consolidation, combination or reclassification of shares of Common Stock or other similar event, the number of shares of Common Stock issuable on exercise of each warrant shall be decreased proportionately and the exercise price shall be increased proportionately.

The Company has identified certain embedded derivatives related to its Convertible Note. Since the Convertible Note has a conversion feature whereby the principal amount will convert into a variable number of shares based on the future trading price of the Company’s common stock, the conversion feature is recorded as a derivative liability. Therefore, the fair value of the convertible feature at inception on May 6, 2021 in the amount of $17,063 was recorded as a debt discount and an addition to “Derivative liability” on the consolidated balance sheets. The derivative liability is adjusted to fair value each reporting period, with the changes in fair value reported in “(Gain) loss from change in fair value of derivative liability” on the consolidated statements of operations.

During the year ended December 31, 2021, $12,137 of Convertible Notes were converted into 52,769 shares of the Company’s common stock. The Company recognized a gain on extinguishment of $2,194 in “Gain on extinguishment of debt” on the consolidated statement of operations associated with the difference between (1) the sum of the fair value of the common stock issued of $10,089 and cash paid for the remaining annual interest due May 2022 of $668 and (2) the sum of the carrying amount of the converted debt $7,966 and the fair value of the convertible note derivative liability of $4,985.

On November 21, 2022, the Company completed an exchange with certain holders of the Convertible Notes via privately negotiated exchange agreements, pursuant to which the holders agreed to exchange$14,000 in aggregate principal amount of the Company's outstanding Convertible Notes for 663,822 newly issued shares of the Company's common stock, par value $0.0001 per share, at a price of $21.00 per share. The Company recognized a gain on extinguishment of $2,921 in “Gain on extinguishment of debt” on the consolidated statement of operations associated with the difference between (1) the sum of the fair value of the common stock issued of $8,138 and (2) the sum of the carrying amount of the converted debt $11,021 and the fair value of the convertible note derivative liability of $38.

On February 10, 2023, the Company completed an exchange with a holder of the Convertible Notes via a privately negotiated exchange agreement, pursuant to which the holder agreed to exchange $3,500 in aggregate principal amount of the Company's outstanding Convertible Notes at 95% of par for 210,443 newly issued shares of the Company's common stock, par value $0.0001 per share, at a price of $15.80 per share. The Company recognized a gain on extinguishment of $46 in “Gain on extinguishment of debt” on the consolidated statement of operations associated with the difference between (1) the sum of the fair value of the common stock issued of $2,811 and (2) the sum of the carrying amount of the converted debt $2,850 and the fair value of the convertible note derivative liability of $8.

On March 15, 2023, the Company completed an exchange with certain holders of the Convertible Notes via privately negotiated exchange agreements, pursuant to which the holders agreed to exchange $10,500 in aggregate principal amount of the Company's outstanding Convertible Notes for 937,500 newly issued shares of the Company's common stock, par value $0.0001 per share, at a price of $11.20 per share. The Company recognized a gain on extinguishment of $2,919 in “Gain on extinguishment of debt” on the consolidated statement of operations associated with the difference between (1) the sum of the fair value of the common stock issued of $5,754 and (2) the sum of the carrying amount of the converted debt $8,669 and the fair value of the convertible note derivative liability of $5.

The following table provides a reconciliation of the beginning and ending balances for the Convertible Note derivative liability measured at fair value using significant unobservable inputs (Level 3):

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	78	$	17,418
(Gain) Loss	(39)		(2,555)
Change resulting from conversions	(13)		—
Balance at end of period	$	26	$	14,863

The Convertible Note warrants are considered free-standing instruments and meet the criteria for equity classification because they are indexed to the Company’s own stock and provide a fixed number of shares. Therefore, the fair value of the Convertible Note warrants on May 6, 2021 in the amount of $14,522 was recorded as a debt discount and an addition to “Additional paid-in capital” on the consolidated balance sheets.

Interest expense for the three months ended March 31, 2023 and 2022 was $3,421 and $3,762, respectively, of which $1,254 and $1,647, respectively, related to contractual interest expense and $2,167 and $2,115, respectively, related to amortization of the discount.

Facility

The Facility provides for both term and working capital loans for borrowings up to $6,700 as of March 31, 2023. However, the Company’s Convertible Note requirements limit the Company’s permitted indebtedness to $5,000. Interest is payable quarterly on borrowings at a fixed annual rate of 15%. Borrowings under the Facility are secured by substantially all the Company’s assets, are subject to borrowing base limitations, and require the Company to meet certain covenants. The Facility borrowings, with a maturity date of October 21, 2024, were $3,000 as of March 31, 2023 and December 31, 2022. Interest expense related to the Facility was $118 and $118 for the three months ended March 31, 2023 and 2022, respectively.

Debt maturities

The total balance of all debt matures as follows:

Period Ending December 31,	Amount
2023 (remainder of the year)	$	—
2024	62,863
2025	—
Thereafter	—
Total	$	62,863

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Leases

3 Months Ended

Mar. 31, 2023

Leases [Abstract]

Leases

Leases

A contract is or contains a lease when, (1) the contract contains an explicitly or implicitly identified asset and (2) the customer obtains substantially all of the economic benefits from the use of that underlying asset and directs how and for what purpose the asset is used during the term of the contract in exchange for consideration. The Company assesses whether an arrangement is or contains a lease at inception of the contract. For all leases, other than those that qualify for the short-term recognition exemption, the Company recognizes as of the lease commencement date on the balance sheet a liability for its obligation related to the lease and a corresponding asset representing the Company’s right to use the underlying asset over the period of use.

The Company leases its manufacturing center, distribution center, and office space (collectively “Operating Facility”) and certain information technology (“IT”) equipment under non-cancelable operating leases. The Company also leases equipment utilized in the manufacturing process under non-cancelable financing leases. These financing leases include either a bargain purchase option or the equipment reverts ownership to the Company at the end of the lease term.

The Company assesses the expected lease term at lease inception and discounts the lease using a fully-secured, annual incremental borrowing rate (or rate implicit in the lease, if readily determinable), adjusted for time value corresponding with the expected lease term. The Company elected, for all classes of underlying assets, to not apply the balance sheet recognition requirements of ASC 842, Leases, to leases with a term of one year or less, and instead, recognize the lease payments in the income statement on a straight-line basis over the lease term. The Company also elected, for certain classes of underlying assets, to combine lease and non-lease components. The Company elected to combine lease and non-lease components for its Operating Facility, IT equipment and manufacturing equipment leases.

Right-of-use assets and lease liabilities as of March 31, 2023 and December 31, 2022 consist of the following:

	March 31, 2023				December 31, 2022
	Operating		Finance		Operating		Finance
Assets
Right-of-use assets, net (1)	$	7,411	$	855	$	7,735	$	893
Liabilities
Lease obligation - current portion (2)	$	1,734	$	181	$	1,649	$	179
Lease obligation - long-term portion (3)	7,262		573		7,735		619
Total lease obligations	$	8,996	$	754	$	9,384	$	798
Weighted average remaining lease terms (in years)	3.9		4.6		4.2		4.8
Weighted average discount rate	15%		4%		15%		4%

(1)Finance right-of-use assets, net are included in “Other assets” on the consolidated balance sheets.

(2)Finance lease obligation – current portion is included in “Accrued expenses and other current liabilities” on the consolidated balance sheets.

(3)Finance lease obligation – long-term portion is included in “Other long-term liabilities” on the consolidated balance sheets.

The Company’s lease cost is presented below. The Company does not have any short-term leases or leases with variable lease payments. The financing lease cost for the three months ended March 31, 2023 and 2022 was immaterial.

	Three Months Ended March 31,
	2023		2022
Operating Lease Cost
Cost of revenues	$	404	$	261
Research and development	76		308
Selling, general and administrative	183		78
Total operating lease cost	$	663	$	647

The maturities of the Company’s lease liabilities are as follows:

	March 31, 2023
	Operating		Finance
2023 (remainder of year)	$	2,186	$	154
2024	2,997		205
2025	3,043		160
2026	3,105		128
2027	517		82
Thereafter	—		84
Total future minimum lease payments	11,848		813
Less: imputed interest	(2,852)		(59)
Total maturities	$	8,996	$	754

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Capital Structure

3 Months Ended

Mar. 31, 2023

Equity [Abstract]

Capital Structure

Capital Structure

Equity Line of Credit (“ELOC”)

On August 30, 2022, the Company entered into the ELOC Agreement with Lincoln Park, pursuant to which Lincoln Park committed to purchase up to $50.0 million of shares of the Company’s common stock, subject to certain limitations and

conditions set forth in the ELOC Agreement. The Company may not issue or sell any shares of common stock under the ELOC Agreement which, when aggregated with all other shares of common stock beneficially owned by Lincoln Park, would result in beneficial ownership of more than 9.99% of the Company’s outstanding shares of common stock.

Under the terms of the ELOC Agreement, the Company has the right, but not the obligation, to sell to Lincoln Park, shares of its common stock over the period commencing on or about August 30, 2022 (the “Closing Date”) and ending on the first day of the month following the 36-month anniversary of the Closing Date. Purchase notices for regular or accelerated purchases to Lincoln Park include share volume limitations and are at prevailing market prices as defined in the ELOC Agreement.

During the three months ended September 30, 2022 and concurrently with the signing of the ELOC Agreement, the Company issued 14,974 shares of its common stock to Lincoln Park as a commitment fee. The fair value of the shares issued for the commitment fee of $851 was recorded in "Selling, general, and administrative" expense on the Company's consolidated statement of operations.

As of March 31, 2023, the Company had not sold any common stock to Lincoln Park under the ELOC Agreement, other than the shares of common stock issued as a commitment fee.

Warrants

As of March 31, 2023, there are warrants outstanding convertible into 1,218,285 shares of common stock. In total, there are 14,999,970 public warrants convertible into 749,998 shares of common stock, 8,695,641 Convertible Note warrants convertible into 434,782 shares of common stock, and 670,108 private placement warrants convertible into 33,505 shares of common stock outstanding. Each warrant entitles the holder to purchase 1/20th of a share of common stock at a price of $230.00 per whole share, subject to adjustment as discussed below. The warrants will expire at 5:00 p.m., New York City time, on May 26, 2026, the fifth anniversary of the completion of the Company’s Business Combination, or earlier upon redemption or liquidation.

The private placement warrants are identical to the public warrants except that such private placement warrants will be exercisable for cash or on a cashless basis, at the holder’s option, and will not be redeemable by the Company, in each case so long as they are still held by the sponsor or its affiliates.

The Company may redeem the outstanding warrants (excluding the private placement warrants):

•in whole and not in part;

•at a price of $0.01 per warrant;

•upon a minimum of 30 days’ prior written notice of redemption, which the Company refers to as the 30-day redemption period; and

•if, and only if, the last reported sale price of the Company’s common stock equals or exceeds $360.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within a 30 trading day period ending on the third trading day prior to the date on which the Company sends the notice of redemption to the warrant holders.

The fair value of the private placement warrants on May 6, 2021 in the amount of $1,253 was recorded as a “Warrant liability” and a reduction to “Additional paid-in capital” on the consolidated balance sheets. The change in fair value at each reporting date was recognized in “(Gain) loss from change in fair value of warrant liabilities” on the consolidated statements of operations. The fair value of the Convertible Note warrants on May 6, 2021 in the amount of $14,522 was recorded as a debt discount and an addition to “Additional paid-in capital” on the consolidated balance sheets.

The following table presents information for privately placed warrants that were assumed in the Business Combination:

	Number of Warrants(1)	Warrant Fair Value		Weighted Average Exercise Price		Weighted Average Remaining Life
Private warrants assumed through Business Combination
Outstanding at December 31, 2021	670,108	$	2,185	$	230.00	4.3
Change in fair value	—	(2,125)		—		—
Outstanding — December 31, 2022	670,108	60		230.00		3.4
Change in fair value	—	(6)		—		—
Outstanding — March 31, 2023	670,108	54		230.00		3.1

(1)     The 670,108 private placement warrants are convertible into 33,505 shares of common stock outstanding. Each warrant entitles the holder to purchase 1/20th of a share of common stock at a price of $230.00 per whole share, subject to adjustment.

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Stock-Based Compensation

3 Months Ended

Mar. 31, 2023

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

Stock-Based Compensation

2021 Equity Incentive Plan

In connection with the Business Combination, the stockholders approved the 2021 Equity Incentive Plan (the “2021 Plan”). The 2021 Plan provides the Company the ability to grant incentive stock options, non-qualified stock options, restricted stock awards, stock appreciation rights, restricted stock units, performance units, performance shares, cash-based awards and other stock-based awards. The purpose of the 2021 Plan is to advance the interests of the Company and its stockholders by providing an incentive to attract, retain and reward persons for performing services and by motivating such persons to contribute to the growth and profitability of the Company and its subsidiaries. As of March 31, 2023, there were 889,712 shares reserved and 586,128 shares available for grant under the 2021 Plan.

Prior Lightning Systems 2019 Equity Incentive Plan

The legacy Lightning Systems 2019 Equity Incentive Plan (“2019 Plan”) provided for the grant of incentive stock options, non-qualified stock options, and other awards. As a result of the Business Combination, the 2019 Plan was superseded by the 2021 Plan; therefore, no further awards will be granted under the 2019 Plan. In connection with the Business Combination, awards outstanding were converted into an option exercisable for common stock of the Company based on the Exchange Ratio. As of March 31, 2023, there were 82,746 stock options previously granted and unexercised under the 2019 Plan, which remain subject to the terms and conditions of the 2019 Plan.

Compensation Expense

To date, the Company has issued stock option and restricted stock unit (“RSU”) awards. The Company recognizes stock-based compensation expense based on the fair value of the awards issued at the date of grant and amortized on a straight-line basis as the employee renders services over the requisite service period. Forfeitures are accounted for as they occur by

reversing the expense previously recognized for non-vested awards that were forfeited during the period. The following table presents the stock-based compensation related to stock option and RSU awards for the periods presented:

	Three Months Ended March 31,
	2023		2022
Stock options expense
Cost of revenues	$	2	$	5
Research and development	6		9
Selling, general and administrative	197		192
Total stock options expense	$	205	$	206
Restricted stock units expense
Cost of revenues	$	87	$	54
Research and development	61		46
Selling, general and administrative	1,089		666
Total restricted stock units expense	$	1,237	$	766
Total stock-based compensation	$	1,442	$	972

The estimated unrecognized expense for stock options and RSUs not vested as of March 31, 2023, which will be recognized over the remaining requisite service period, is as follows:

Stock options unrecognized expense	$	1,907
Stock options weighted-average remaining requisite service period (in years)	2.0
Restricted stock units unrecognized expense	$	10,079
Restricted stock units weighted-average remaining requisite service period (in years)	2.4

Stock Option Awards

Stock option awards are issued to employees with an exercise price equal to the estimated fair market value per share at the date of grant and a term of 10 years. Stock option awards generally vest over 4 years. It is the Company’s policy to issue new shares upon option exercise. Changes in the Company’s stock options for the three months ended March 31, 2023 are presented in the table below.

	Number of Options	Weighted Average Exercise Price per Share		Aggregate Intrinsic Value (in thousands)		Weighted Average Remaining Life (in years)
Outstanding at January 1, 2023	138,091	$	45.60
Granted	—	—
Exercised	(6,744)	1.20
Forfeited	(206)	11.60
Expired	—	—
Outstanding at March 31, 2023	131,141	47.80		$	197	7.7
Vested and exercisable at March 31, 2023	60,487	78.40		130		7.2

Changes in the status of the Company’s non-vested stock option awards for the three months ended March 31, 2023 are presented in the table below.

	Non-vested Shares Under Option	Weighted Average Grant Date Fair Value per Share
Non-vested at January 1, 2023	73,939	$	35.00
Granted	—	—
Vested	(3,080)	33.80
Forfeited	(206)	42.60
Non-vested at March 31, 2023	70,654	35.00

The aggregate intrinsic value of options exercised were $60 and $106 during the three months ended March 31, 2023 and 2022, respectively.

Restricted Stock Unit Awards

The Company grants RSU awards to employees that generally vest over 3 years. RSU awards are valued based on the closing market price of the Company’s common stock on the grant date.

	Number of RSUs	Weighted Average Grant Date Fair Value per Share
Outstanding at January 1, 2023	188,223	$	71.40
Granted	47,178	12.00
Vested	(5,753)	98.00
Forfeited	(8,784)	57.80
Outstanding at March 31, 2023	220,865	58.40

Other Employee Benefits - 401(k) Savings Plan

The Company has an employee-directed 401(k) savings plan (the “401(k) Plan”) for all eligible employees. Under the 401(k) Plan, employees may make voluntary contributions based on a percentage of their pretax income, subject to statutory limitations. The Company matches 100% for the first 3% of each employee’s contribution and 50% for the next 2% of each employee’s contribution. The Company’s cash contributions are fully vested upon the date of match. The Company made matching cash contributions of $257 and $165 for the three months ended March 31, 2023 and 2022, respectively.

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Income Taxes	3 Months Ended
	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income TaxesThe provision for income taxes is recorded at the end of each interim period based on the Company’s best estimate of its effective income tax rate expected to be applicable for the full fiscal year. There is no provision for income taxes because the Company has incurred taxable losses since inception. The Company’s effective income tax rate was 0% for the three months ended March 31, 2023 and 2022 and the realization of any deferred tax assets is not more likely than not.

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Earnings (Loss) per Common Share

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Earnings (Loss) per Common Share

Earnings (Loss) per Common ShareBasic income or loss per common share is computed by dividing net income or loss by the weighted average number of common shares outstanding during the period. Diluted income or loss per common share is computed by dividing net income or loss by the weighted average number of common shares outstanding, plus the issuance of potentially dilutive common shares that could result from the exercise of outstanding stock options and warrants, vesting of restricted stock and conversion of convertible notes. No potentially dilutive common shares are included in the computation of any diluted per share amount when a loss is reported, which was the case for the three months ended March 31, 2023 and 2022. The Company applied the treasury stock method to account for the dilutive impact of its options, warrants and restricted stock units and the if-converted method for its Convertible Note.

The following table reconciles the earnings (loss) and number of common shares used to calculate basic and diluted earnings per common share attributable to the Company’s shareholders:

	Three Months Ended March 31,
	2023		2022
Basic earnings per common share:
Net income (loss) - basic	$	(23,435)	$	(10,756)
Weighted shares outstanding - basic	4,794,178		3,756,402
Basic earnings (loss) per common share	$	(4.89)	$	(2.86)
Diluted earnings per common share:
Net income (loss) - basic	$	(23,435)	$	(10,756)
Net income (loss) - diluted	$	(23,435)	$	(10,756)
Weighted shares outstanding - basic	4,794,178		3,756,402
Weighted shares outstanding - diluted	4,794,178		3,756,402
Diluted earnings (loss) per common share	$	(4.89)	$	(2.86)

All potentially dilutive common shares in the following table were excluded from the computation of diluted loss per share for the three months ended March 31, 2023 and 2022 because including them would have had an anti-dilutive effect due to losses reported during those periods.

	Outstanding as of March 31,
	2023	2022
Convertible notes payable	260,273	382,012
Outstanding warrants	1,218,286	1,218,286
Stock options	131,141	157,285
Restricted stock units	220,865	51,414
Total anti-dilutive stock	1,830,565	1,808,997

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2023

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Firm Purchase and Other Commitments

The Company is party to firm purchase commitments with some of its suppliers. A firm purchase commitment represents an agreement that specifies all significant terms, including price and timing of the transactions, and includes a disincentive for non-performance that is sufficiently large to make performance probable. This disincentive is generally in the form of a take-or-pay provision, which requires the Company to pay for committed volumes regardless of whether the Company actually acquires the materials. The Company evaluates these agreements and records a loss, if any, on firm purchase commitments using the same lower of cost or market approach as that used to value inventory.

The Company amended certain firm purchase commitments during the year ended December 31, 2022, which significantly reduced its commitments. Negotiations with other suppliers are still ongoing to blend and extend or terminate other future commitments due to supply chain constraints and cost increases for both parties. The Company recognized $600 in losses associated with firm purchase commitments during the year ended December 31, 2022. If negotiations to amend certain purchase commitments are not successful, the Company may incur additional losses in future periods.

The Company also has other commitments, including marketing and software subscription agreements and equipment leases. The equipment leases included here only relate to leases for which the equipment had not yet been delivered to the Company as of March 31, 2023. Since the Company did not receive the equipment, the related right-of-use asset and lease liability were not recognized as of March 31, 2023. However, the Company was still committed to the financing

arrangement. All other financial commitments under leasing arrangements are described in Note 8.

The amounts in the table below represent the Company’s future minimum commitments.

	As of March 31, 2023
	Firm Purchase		Other		Total
2023 (remainder of the year)	$	55,742	$	725	$	56,467
2024	—		482		482
2025	—		203		203
2026	—		163		163
2027	—		12		12
Thereafter	—		—		—
Total	$	55,742	$	1,585	$	57,327

Legal Proceedings

Aside from the proceedings described below, the Company may be involved in legal matters arising in the ordinary course of business from time to time. While the Company believes that such matters are currently not material, there can be no assurance that matters arising in the ordinary course of business for which the Company is or could become involved in litigation will not have a material adverse effect on its business, financial condition or results of operations. The Company records an accrual for legal contingencies when it determines that it is probable that it has incurred a liability and it can reasonably estimate the amount of the loss.

On August 4, 2021, a purported stockholder of the Company filed a putative class action complaint in the Delaware Chancery Court, captioned Delman v. GigCapitalAcquisitions3, LLC, et al. (Case No. 2021-0679) on behalf of a purported class of stockholders. The lawsuit names GigCapitalAcquisitions3, LLC and the Company’s former directors Dr. Katz, Dr. Dinu, and Messrs. Betti-Berutto, Mikulsky, Miotto and Wang, as defendants. The lawsuit alleges that the defendants breached their fiduciary duty stemming from Gig’s merger with Lightning Systems and unjust enrichment of certain of the defendants. The lawsuit seeks, among other relief, unspecified damages, redemption rights, and attorneys’ fees. Neither the Company nor any of its current officers or directors are parties to the lawsuit. The Company’s former directors are subject to certain indemnification obligations of the Company. On January 4, 2023, the Delaware Chancery Court denied the defendant's motion to dismiss.

In addition, on October 15, 2021, the Company and certain of its officers were named as defendants in a putative securities class action. The action is pending in the U.S. District Court for the District of Colorado, and is captioned Shafer v. Lightning eMotors, Inc., et al., Case No. 1:21-cv02774. The lawsuit alleges violations of Sections 10(b), Section 14(a) and 20(a) of the Securities Exchange Act of 1934, as amended, and Rule 10b-5 promulgated thereunder for purported false or misleading statements regarding the Company’s business operations and financial condition. A related lawsuit captioned Cohen v. Lightning eMotors, Inc., et al., Case No. 1:21-cv-03215, was filed in the United States District Court for the District of Colorado on December 1, 2021. On December 17, 2021, the Cohen lawsuit was consolidated with the Shafer lawsuit. On April 22, 2022, the court appointed a lead plaintiff in the consolidated lawsuit. The lead plaintiff’s filed a consolidated complaint on May 20, 2022. On July 13, 2022, the Company and the other defendants filed a motion to dismiss the class action. On February 21, 2023, the court denied the motion to dismiss. The plaintiffs seek damages in an unspecified amount, attorneys’ fees, and other remedies. The Company believes the allegations are without merit and intends to defend vigorously against such allegations.

On February 6, 2023, a purported stockholder of the Company filed a derivative complaint in the Delaware Chancery Court, captioned Uvaydov v. Robert Fenwick-Smith, Tim Reeser, et al. (Case No. 2023-0137-LWW). The lawsuit names certain current and former officers and directors of the Company as defendants. The lawsuit alleges that the defendants breached their fiduciary duty stemming from GigCapital3’s merger with Lightning Systems. The lawsuit seeks, among other relief, unspecified damages, redemption rights, and attorneys’ fees. The Company believes the allegations are without merit and intends to defend vigorously against them.

On February 24, 2023, a purported stockholder of the Company filed a derivative complaint in the U.S. District Court for the District of Colorado, captioned Lanham v. Robert Fenwick-Smith, et al. (Case No. 1:23-cv00507). The lawsuit names certain current and former officers and directors of the Company as defendants. The lawsuit alleges, among others, that the

defendants breached their fiduciary duty stemming from GigCapital3’s merger with Lightning Systems. The lawsuit seeks, among other relief, unspecified damages, and attorneys’ fees. The Company believes the allegations are without merit and intends to defend vigorously against them.

On March 9, 2023, the Company filed a lawsuit against Romeo Systems, Inc. and Nikola Corporation in the Larimer County District Court, Colorado (Case No. 2023CV30187) seeking damages for breach of contract and tortious interference related to the product supply agreement between the Company and Romeo dated July 13, 2020, arising from Romeo’s failure to deliver batteries under the agreement and for costs associated with a recall of the batteries. The Company initiated a voluntary recall after Romeo refused to take action as the supplier of the batteries.

Recall Campaigns

On December 16, 2022, the Company initiated a voluntary recall for certain 2021-2022 model year Lightning eMotors ZEV4 vehicles due to multiple software and hardware discrepancies internal to the Romeo battery packs installed in the ZEV4 series vehicles. The affected vehicles may fail to operate in cold temperatures, fail to start, or may lose traction power while driving, increasing the risk of an accident. Romeo has been formally notified of the recall; however, Romeo has not reached a solution to honor their battery warranty. See Note 13 under the section “Legal Proceedings”. The Company’s current remedy is to either replace the ZEV4 manufactured with Romeo battery packs with updated ZEV4 models manufactured with Proterra battery packs or to refund full value of the purchase price to the customer. The Company will seek to recover the costs and expenses associated with the recall from Romeo.

On March 27, 2023, the Company initiated a voluntary recall for certain model year 2020 FT3-43, 2019-2022 FT3-86, 2020 FE4-86 and 2019-2021 FE4-129 vehicles equipped with eMatrix battery packs. Defective structural welds and internal radiator leaks have been found in the battery packs which may result in isolation faults and cell imbalances. The affected vehicles may lose traction power, increasing the potential for collisions or experience a thermal runaway which could result in vehicle fires. The Company is currently working with eMatrix, the battery manufacturer, to develop a remedy for the structural welds and internal radiator leaks. Because the remedy is still being developed, the Company is unable to reasonably estimate a range of the potential losses associated with the recall.

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Subsequent Events

3 Months Ended

Mar. 31, 2023

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

On April 24, 2023, the Company filed with the Secretary of State of the State of Delaware a Certificate of Amendment (the “Certificate of Amendment”) to the Company’s Second Amended and Restated Certificate of Incorporation to effect a 1-for-20 reverse stock split (the “Reverse Stock Split”) of the Company’s issued and outstanding shares of common stock, par value $0.0001 per share, effective as of 5:00 p.m. Eastern Time on April 27, 2023. Beginning with the opening of trading on April 28, 2023, the Company’s common stock traded on the New York Stock Exchange on a split-adjusted basis under the new CUSIP number 53228T 200 and will continue to trade under the symbol “ZEV.”

As a result of the Reverse Stock Split, every twenty shares of common stock issued and outstanding were automatically reclassified into one share of common stock. No fractional shares were issued in connection with the Reverse Stock Split. Stockholders who otherwise would have been entitled to receive fractional shares because they held a number of shares of common stock not evenly divisible by the Reverse Stock Split ratio were automatically entitled to receive a cash payment equal to the value of such fractional share based on the closing price of the common stock as of the effective time of the Reverse Stock Split adjusted for the Reverse Stock Split.

The Reverse Stock Split did not reduce the number of authorized shares of common stock of 250,000,000, or change the par value of the common stock. The Reverse Stock Split affected all stockholders uniformly and did not affect any stockholder’s ownership percentage of the Company’s shares of common stock.

All outstanding options, warrants, restricted stock units and similar securities entitling their holders to receive or purchase shares of common stock were adjusted as a result of the Reverse Stock Split, as required by the terms of each security. Prior to the Reverse Stock Split, the Company had outstanding issued warrants listed on the NYSE to purchase a total of 14,999,970 shares of common stock, with each whole warrant being exercisable to purchase one share of common stock at $11.50 per share. After giving effect to the Reverse Stock Split, these warrants are now exercisable for a total of approximately 749,998 shares of common stock, resulting in each warrant becoming exercisable for 1/20th of a share of common stock with an exercise price of $230.00 per whole share.

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Use of estimates

Use of estimates

The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. The Company’s most significant estimates and judgments involve deferred income taxes, provision for credit losses, warranty liability, write downs and write offs of obsolete and damaged inventory and valuations of share-based compensation, warrant liability, convertible note derivative liability and earnout share liability. Management bases its estimates on historical experience and on various other assumptions believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from those estimates, and such differences could be material to the Company’s financial statements.

Segment information

Segment information

ASC 280, Segment Reporting, defines operating segments as components of an enterprise where discrete financial information is available that is evaluated regularly by the chief operating decision-maker (“CODM”) in deciding how to allocate resources and in assessing performance. The Company operates as a single operating segment. The Company’s CODM is the Chief Executive Officer, who has ultimate responsibility for the operating performance of the Company and the allocation of resources. The CODM uses Company forecasts, a financial and operations dashboard, and cash flows as the primary measures to manage the business and does not segment the business for internal reporting or decision making.

Concentrations of credit risk

Concentrations of credit riskAs of March 31, 2023, two customers accounted for 31% and 18% of the Company’s total accounts receivable. As of December 31, 2022, two customers accounted for 40% and 25% of total accounts receivable.

Concentrations of supplier risk

Concentrations of supplier riskAs of March 31, 2023, one supplier accounted for 21% of the Company’s total accounts payable. As of December 31, 2022, two suppliers accounted for 20% and 15% of the Company’s total accounts payable. For the three months ended March 31, 2023, two suppliers accounted for 18% and 14% of inventory purchases. For the three months ended March 31, 2022, one supplier accounted for 13% of inventory purchases.

Cash and cash equivalents

Cash and cash equivalents

Cash and cash equivalents include cash held in banks and in money market funds. The Company’s cash and cash equivalents are placed with high-credit-quality financial institutions and issuers, and at times exceed federally insured limits. To date, the Company has not experienced any credit loss relating to its cash and cash equivalents. The carrying value of the cash equivalents approximates fair value, which represents a Level 1 input.

Accounts receivable

Accounts receivable

Accounts receivable are recorded at invoiced amounts, net of discounts, and allowances. The Company grants credit in the normal course of business to its customers. The Company periodically performs credit analyses and monitors the financial condition of its customers to reduce credit risk. The Company reduces the carrying value for estimated uncollectible accounts based on a variety of factors including the length of time receivables are past due, economic trends and conditions affecting the Company’s customer base, and historical collection experience. Specific provisions are recorded for individual receivables when the Company becomes aware of a customer’s inability to meet its financial obligations. The

Company writes off accounts receivable when they are deemed uncollectible.

Inventories

InventoriesInventories consist of raw materials, work in progress, and finished goods and are stated at the lower of cost or net realizable value, with cost determined on the average cost method. A valuation adjustment is made to inventory for any excess, obsolete or slow-moving items based on management’s review of on-hand inventories compared to historical and estimated future sales and usage profiles.

Property and equipment

Property and equipment

Property and equipment is stated at cost, less accumulated depreciation. Depreciation is provided using the straight-line method over the estimated useful asset lives. Leasehold improvements are stated at cost and amortized on the straight-line basis over their estimated economic useful lives or the lease term, whichever is shorter. Costs of enhancements or modifications that substantially extend the capacity or useful life of an asset are capitalized and depreciated accordingly. Ordinary repairs and maintenance are expensed as incurred. Depreciation is included in the consolidated statements of operations in “Cost of revenues”, “Research and development” and “Selling, general and administrative.” When property is retired or otherwise disposed of, the cost and accumulated depreciation are removed from the consolidated balance sheets and the resulting gain or loss, if any, is reflected in “Other income, net.” The estimated useful lives of the Company’s major classes of property and equipment are as follows:

Major Class of Property and Equipment	Estimated Useful Lives
Machinery and equipment	7 years
Vehicles	5 years
Leasehold improvements	5 years
Computer equipment	3 years
Software	3 years
Furniture and fixtures	7 years

Impairment of long-lived assets

Impairment of long-lived assets

Long-lived assets to be held and used in the Company’s operations are evaluated for impairment when events or circumstances indicate the carrying value of a long-lived asset or asset group is less than the undiscounted cash flows from its use and eventual disposition over its remaining economic life. The Company assesses recoverability by comparing the sum of projected undiscounted cash flows from the use and eventual disposition over the remaining economic life of a long-lived asset or asset group to its carrying value, and records a loss from impairment if the carrying value is more than its undiscounted cash flows. Assets or asset groups to be abandoned or from which no future benefit is expected are written down to zero in the period it is determined they will no longer be used and are removed entirely from service. There were no impairments of long-lived assets recognized during the three months ended March 31, 2023 and 2022.

Revenue recognition

Revenue recognition

Revenue Summary

The following table disaggregates revenue by major source:

	Three Months Ended March 31,
	2023		2022
ZEVs	$	3,222	$	5,179
Other	344		233
Gross Revenue	$	3,566	$	5,412
Customer refunds(1)	(2,255)		—
Total Revenue, net of customer refunds	$	1,311	$	5,412

(1) Customer refunds are related to the recall for ZEV4 vehicles that were manufactured with Romeo battery packs.

The Company manufactures and sells ZEVs, such as delivery vans and buses. The Company manufactures ZEVs by removing the internal combustion engine and certain associated components (collectively, “decontented parts”) and installing and integrating its internally-developed, zero-emission powertrain into a vehicle chassis supplied by original equipment manufacturer (“OEM”) partners or from the customer. At times, the Company also installs and integrates its zero-emission powertrains into a used vehicle chassis supplied by the customer (“repower”).

The Company recognizes revenue at a point in time when its performance obligation has been satisfied and control of the ZEV or zero-emission powertrain is transferred to the customer, which generally aligns with shipping terms. Contract shipping terms include ExWorks (“EXW”), “FOB Shipping Point” and “FOB Destination” all as defined in the Incoterms. Under EXW (meaning the seller fulfills its obligation to deliver when it makes goods available at its premises, or another specified location, for the buyer to collect), the performance obligation is satisfied and control is transferred at the point when the customer is notified that the ZEV is available for pickup. Under “FOB Shipping Point,” control is transferred to the customer at the time the good is transferred to the shipper and under “FOB Destination,” at the time the good is delivered to a customer’s specified delivery location. At times, the Company sells ZEVs that require additional upfitting from a third party before the final sale to the customer. The Company is acting as the principal in such transactions and revenue is recognized on a gross basis.

Other revenue primarily includes the sale of stand-alone zero-emission powertrains, charging systems, engineering consulting services, telematics and analytics subscription services and decontented parts. Revenue for zero-emission powertrains, chargers and decontented parts is generally recognized based on contract shipping terms. At times, chargers may be drop shipped directly to the customer from the manufacturer, in which revenue is recognized at the time of shipment. The Company is acting as the principal in such transactions and revenue is recognized on a gross basis. Services are recognized as revenue over time as either percentage of completion (i.e. engineering service contracts) or as the service is transferred to the customer (i.e. telematics and analytics subscription services).

The Company made an accounting policy election to account for any shipping and handling costs that occur after control has transferred to the customer as fulfillment costs that are accrued to cost of revenues at the time control transfers. Shipping and handling costs billed to customers are initially recorded in deferred revenue and recognized as revenue once shipping is complete.

The Company often applies for governmental funding programs, including California’s Hybrid and Zero Emission Truck and Bus Voucher Incentive Project (“HVIP”), on behalf of its customers for ZEV sales. Generally, as a condition of the program, the amount billed to the customer must be reduced by the amount that will be funded by the government program, and the Company will receive the funds directly from the government program. However, the discount to the customer is contingent upon the Company’s receipt of the funding. Revenue is recognized on the gross amount of the ZEV at the time substantially all of the conditions of the government program required of the Company have been met and control of the ZEV has transferred to the customer based on shipping terms.

The following economic factors affect the nature, amount, timing, and uncertainty of the Company’s revenue and cash flows as indicated:

•Type of customer: The Company’s sales are directly to commercial fleet customers, OEMs, governments and dealers.

•Type of contract: Sales contracts are for goods or services. The majority of contracts are short term (i.e., less than or equal to one year in duration).

Significant Payment Terms

None of the Company’s contracts have a significant financing component. Any cash that is received prior to revenue recognition is deferred as deferred revenue (a contract liability) until the good is delivered or service is rendered. Payment terms are identified when the contract has commercial substance and collectability of consideration is probable. The Company generally utilizes payment terms of a twenty percent deposit once a contract is executed with the remainder due upon receipt.

Contract Liabilities

Contract liabilities relate to payments received in advance of performance obligations under the contract and are realized when the associated revenue is recognized under the contracts. The Company’s contract liabilities consist of customer deposits and deferred revenue, of which current amounts are included in “Accrued expenses and other current liabilities” and long-term amounts are included in “Other long-term liabilities” on the consolidated balance sheets. Changes in contract liabilities are as follows:

Balance as of December 31, 2022	$	794
Revenues recognized	(520)
Increase due to billings	623
Balance as of March 31, 2023	$	897

Returns and Refunds

Based on our standard terms and conditions, consideration paid for goods and/or services that customers purchase from the Company are nonrefundable. Therefore, at the time revenue is recognized, the Company does not estimate expected refunds for goods or services, nor does the Company exclude any such amounts from revenue.

However, during the quarter ended March 31, 2023 and as special consideration to those customers impacted by the Romeo battery recall, the Company extended an offer to allow a return and refund for the affected ZEV4s. The Company applied a reserve for estimated refunds based on known pending refunds and reduced sales in the current quarter accordingly. The Company initially recorded, on a gross basis, a refund liability in the amount of $5,037 and inventory in the amount of $2,171. The total refund liability associated with ZEV4 recalls was $3,228 as of March 31, 2023, which is included in accrued expenses and other current liabilities on the consolidated balance sheets. In some instances, the refund paid to customers exceeded the original transaction price and value of goods to be received (“Accommodation”), representing consideration payable to the customer. The Company recorded the Accommodation as an asset and will derecognize the asset as a reduction to the future revenues that will be recognized from orders placed by that customer, which were associated with the Accommodation. During the quarter ended March 31, 2023, the Company recorded an Accommodation in the amount of $611 and this amount is included in prepaid expenses and other current assets on the consolidated balance sheets. The Company expects the Accommodation asset to be derecognized over the remainder of the year ended 2023 as orders associated with the Accommodation are completed and gross revenue is recognized.

Transaction Price

The transaction price of a contract is the amount of consideration to which the Company expects to be entitled in exchange for transferring promised goods to a customer. Transaction prices do not include amounts collected on behalf of third parties (e.g., sales taxes). Sales taxes collected on sales are recorded as a sales tax liability and are included in “Accrued expenses and other current liabilities.”

To determine the transaction price of a contract, the Company considers its customary business practices and the terms of the contract. For the purpose of determining transaction prices, the Company assumes that the goods and/or services will be transferred to the customer as promised in accordance with existing contracts and that the contracts will not be canceled,

renewed, or modified. The Company’s revenue terms do not include retrospective or prospective volume discounts, rights of return, rebates, performance bonuses or other forms of variable consideration.

The Company’s contracts with customers have fixed transaction prices that are denominated in U.S. dollars and payable in cash.

Future Performance Obligations

The Company has applied the practical expedient to exclude the value of remaining performance obligations for (i) contracts with an original term of one year or less and (ii) contracts for which the Company recognizes revenue in proportion to the amount it has the right to invoice for services performed (i.e. analytical data subscription services).

As of March 31, 2023, the Company had remaining performance obligations related to a non-cancellable (other than for a breach by the Company) minimum-quantity purchase commitment. The customer is obligated to purchase a fixed number of ZEVs through December 31, 2023. The Company estimates that the future revenues associated with this contract (based on estimated orders from the customer) will be $10,500 in 2023. The timing of the revenue associated with these estimates will change if the ZEVs are commissioned and/or shipped subsequent to the year in which they were ordered, as revenue will not be recognized until control of the ZEV transfers to the customer based on the purchase order shipping terms.

As of March 31, 2023, the Company also had $206 of remaining performance obligations related to unsatisfied extended warranty performance obligations the Company expects to recognize ratably from approximately September 2027 through August 2030.

Costs to Obtain or Fulfill a Contract with a Customer

The Company has elected the practical expedient to expense contract acquisition costs, which consist of sales commissions, which are reported within “Selling, general and administrative” expenses.

Warranties

Warranties and Recall Campaigns

Warranties

All ZEVs that customers purchase from the Company are covered by five-year and 60-thousand-mile limited product warranties. At the time revenue is recognized, the Company estimates the cost of expected future warranty claims and accrues estimated future warranty costs based upon the history of warranty claims. The Company periodically reviews the adequacy of its product warranties and adjusts, if necessary, the warranty estimate and accrued warranty liability for actual historical experience. The warranty liability is included in “Accrued expenses and other current liabilities” and the cost of warranties is included in “Cost of revenues.”

At times, the Company may sell its ZEVs with an extended product warranty, with coverage beyond the five-year and 60-thousand-mile limited standard warranty. The Company considers these extended warranties to be separate performance obligations. The consideration allocated to the extended warranty is deferred and recognized over the term of the extended warranty. The Company’s deferred revenue associated with extended warranties is currently all classified as long-term within “Other long-term liabilities.”

Recall Campaigns

The Company records product recall reserves when a liability is probable and the related amounts are reasonably estimable.

On December 16, 2022, the Company initiated a voluntary recall for certain 2021-2022 model year Lightning eMotors ZEV4 vehicles due to multiple software and hardware discrepancies internal to the Romeo battery packs installed in the ZEV4 series vehicles. The affected vehicles may fail to operate in cold temperatures, fail to start, or may lose traction power while driving, increasing the risk of an accident. Romeo has been formally notified of the recall; however, Romeo has not reached a solution to honor their battery warranty. See Note 13 under the section “Legal Proceedings”. The Company’s current remedy is to either replace the ZEV4 manufactured with Romeo battery packs with updated ZEV4 models manufactured with Proterra battery packs or to refund full value of the purchase price to the customer. The Company will seek to recover the costs and expenses associated with the recall from Romeo.

On March 27, 2023, the Company initiated a voluntary recall for certain model year 2020 FT3-43, 2019-2022 FT3-86, 2020 FE4-86 and 2019-2021 FE4-129 vehicles equipped with eMatrix battery packs. Defective structural welds and internal radiator leaks have been found in the battery packs which may result in isolation faults and cell imbalances. The affected vehicles may lose traction power, increasing the potential for collisions or experience a thermal runaway which could result in vehicle fires. The Company is currently working with eMatrix, the battery manufacturer, to develop a remedy for the structural welds and internal radiator leaks. Because the remedy is still being developed, the Company is unable to reasonably estimate a range of the potential losses associated with the recall.

Fair value measurements, and financial instruments

Fair value, measurements, and financial instruments

A fair value hierarchy was established that prioritizes fair value measurements based on the types of inputs used for the various valuation techniques (market approach, income approach, and cost approach). The Company’s financial assets and liabilities are measured using inputs from the three levels of the fair value hierarchy. The three levels of the hierarchy and the related inputs are as follows:

•Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the Company can access at the measurement date.

•Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data.

•Level 3: Significant unobservable inputs that reflect the Company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

An asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs. Assets and liabilities measured at fair value are based on one or more of the following three valuation techniques:

•Market approach: Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.

•Cost approach: Amount that would be required to replace the service capacity of an asset (replacement cost).

•Income approach: Techniques to convert future amounts to a single present value amount based upon market expectations (including present value techniques, option pricing and excess earnings models).

The Company believes its valuation methods are appropriate and consistent with other market participants, however, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. The Company’s recurring fair value measurements categorized within Level 3 discussed below contain significant unobservable inputs. A change in those significant unobservable inputs could result in a significantly higher or lower fair value measurement at the reporting date.

The Company’s financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable, accrued liabilities, warrant liabilities, long-term debt, derivative liabilities and earnout liabilities. The carrying value of cash, accounts receivable, accounts payable, and accrued liabilities approximate fair value because of the short-term nature of those instruments.

Long-term debt is not presented at fair value on the consolidated balance sheets, as it is recorded at carrying value, net of unamortized debt discounts. However, the 7.5% $100,000 convertible senior note (the “Convertible Note”) has an embedded conversion option accounted for as a derivative liability, which is presented at fair value on the consolidated balance sheets. The fair value of the Convertible Note, including the conversion option, was $49,167 and $58,155 as of March 31, 2023 and December 31, 2022, respectively. The Company’s term note and working capital facility (“Facility”) had an outstanding term note with a principal amount of $3,000 as of both March 31, 2023 and December 31, 2022 and a fair value of $3,106 and $3,125 as of March 31, 2023 and December 31, 2022, respectively.

The following tables set forth by level within the fair value hierarchy the Company’s financial assets and liabilities that were measured at fair value on a recurring basis in the consolidated balance sheets.

	Level 1		Level 2		Level 3
As of March 31, 2023
Financial assets
Cash equivalents	$	31,768	$	—	$	—
Financial Liabilities
Warrant liability	$	—	$	—	$	54
Derivative liability	—		—		26
Earnout liability	—		—		1,859
As of December 31, 2022
Financial assets
Cash equivalents	$	51,351	$	—	$	—
Financial Liabilities
Warrant liability	$	—	$	—	$	60
Derivative liability	—		—		78
Earnout liability	—		—		2,265

As of March 31, 2023 and December 31, 2022, the Company had cash equivalents held in a money market account. The Company has concluded that due to the highly liquid nature of the money market account, the carrying value approximates fair value, which represents a Level 1 input.

As a result of the Business Combination, the Company assumed the liability associated with the Gig warrants. The Company accounts for the warrants as liabilities at fair value with subsequent changes in fair value recorded in the statement of operations for each reporting period. The fair value is determined using the Black-Scholes-Merton option-pricing model (“BSM”) where the share price input represents the Company’s stock price as of the valuation date. The BSM is a commonly-used mathematical model for pricing an option or warrant. In particular, the model estimates the variation in value over time of financial instruments. The fair value measurements are considered Level 3 measurements within the fair value hierarchy.

The Company estimates the fair value of its derivative liability associated with the Convertible Note at each reporting date, as well as at each conversion date. The Convertible Note and embedded conversion option are valued using a Binomial Lattice Model designed to capture incremental value attributed to the conversion options in addition to the value of the Convertible Note. The value of the Convertible Note without the conversion feature is valued utilizing the income approach, specifically the discounted cash flow method. Cash flows are discounted utilizing the U.S. Treasury rate and the credit spread to estimate the appropriate risk-adjusted rate. The conversion feature utilizes the Company’s stock price as of the valuation date as the starting point of the valuation. A Binomial Lattice Model is used to estimate a credit spread by solving for a premium to the U.S. Treasury rate that produces a value of the Convertible Note. As of issuance, the value of the Convertible Note and warrants related to the Convertible Note were set to equal $100,000 to solve for the credit spread which is then updated quarterly. The fair value measurements are considered Level 3 measurements within the fair value hierarchy.

As a result of the Business Combination, the Company recognized additional earnout shares with performance conditions as a liability measured at fair value with subsequent changes in fair value recorded in the consolidated statement of operations for each reporting period. The earnout shares are valued using the Company’s stock price as of the valuation date. The valuation methodology used is a Monte Carlo Simulation model (“MCS”) utilizing a Geometric Brownian motion process to capture meeting the various performance conditions. MCS is a technique that uses a stochastic process to create a range of potential future outcomes given a variety of inputs. Stochastic processes involve the use of both predictive assumptions (e.g., volatility, risk-free rate) and random numbers to create potential outcomes of value. MCS assumes that stock prices take a random walk and cannot be predicted; therefore, random number generators are used to create random outcomes for stock prices. The fair value measurements are considered Level 3 measurements within the fair value hierarchy.

The Company’s non-financial assets, which primarily consist of property and equipment, are not required to be carried at fair value on a recurring basis and are reported at carrying value. However, on a periodic basis or whenever events or changes in circumstances indicate that their carrying value may not be fully recoverable, these along with other non-financial instruments are assessed for impairment and, if applicable, written down to and recorded at fair value.

Beneficial conversion features

Beneficial conversion features

The Company followed the beneficial conversion feature guidance in ASC 470-20, Debt with Conversion and Other Options, which applies to redeemable convertible preferred stock and convertible debt. A beneficial conversion feature is defined as a nondetachable conversion feature that is in the money at the commitment date.

The beneficial conversion feature guidance requires recognition of the conversion option’s in-the-money portion, the intrinsic value of the option, in equity, with an offsetting reduction to the carrying amount of the instrument. The resulting discount is amortized as interest over the life of the instrument. When there is a subsequent change to the conversion ratio based on a future occurrence, the new conversion price may trigger the recognition of an additional beneficial conversion feature on occurrence.

As a result of the Business Combination, the unamortized portion of the beneficial conversion feature was recorded to additional paid-in capital.

Stock-based compensation

Stock-based compensation

The Company accounts for share-based compensation in accordance with ASC 718, Compensation – Stock Compensation, under which share based payments that involve the issuance of common stock to employees and non-employees and meet the criteria for equity-classified awards are recognized in the financial statements as share-based compensation expense based on the fair value on the date of grant. The Company issues stock option awards and restricted stock unit awards to employees and non-employees.

The Company utilizes the Black-Scholes model to determine the fair value of the stock option awards, which requires the input of subjective assumptions. These assumptions include estimating (a) the length of time grantees will retain their vested stock options before exercising them for employees and the contractual term of the option for non-employees (“expected term”), (b) the volatility of the Company’s common stock price over the expected term, (c) expected dividends, and (d) the fair value of a share of common stock prior to the Business Combination. After the closing of the Business Combination, the Company’s board of directors determined the fair value of each share of common stock underlying stock-based awards based on the closing price of the Company’s common stock as reported by the NYSE on the date of grant. The Company has elected to recognize the adjustment to share-based compensation expense in the period in which forfeitures occur.

The assumptions used in the Black-Scholes model are management’s best estimates, but the estimates involve inherent uncertainties and the application of management judgment (see Note 10). As a result, if other assumptions had been used, the recorded share-based compensation expense could have been materially different from that recorded in the financial statements.

Warrants and Warrant liabilities

Warrants and Warrant liabilitiesAs a result of the Business Combination, the Company assumed the liability associated with the Gig warrants. The Company accounts for the warrants for shares of the Company’s common stock that are not indexed to its own stock as liabilities at fair value on the consolidated balance sheets. The warrants are subject to remeasurement at each balance sheet date and any change in fair value is recognized as a “(Gain) loss from change in fair value of warrant liabilities” in the consolidated statements of operations. The Company will continue to adjust the liability for changes in fair value until the earlier of the exercise or expiration of the common stock warrants. At that time, the portion of the warrant liability related to the common stock warrants will be reclassified to “Additional paid-in capital”.

Research and development

Research and developmentResearch and development costs are primarily expensed when incurred and consist of personnel-related expenses including salaries, benefits, travel and stock-based compensation for personnel performing research and development activities; expenses related to materials, supplies and testing; and consulting and occupancy expenses. In addition, costs for certain property and equipment utilized for research and development are capitalized and depreciated to “Research and development” over the useful life of the asset based on the property and equipment policy discussed above.

Advertising

Advertising

Advertising costs are expensed when incurred and are included in “Selling, general and administrative” expenses and total $214 and $116 for the three months ended March 31, 2023 and 2022, respectively.

Derivative liability

Derivative Liability

The Company accounts for the embedded conversion feature of the Convertible Note as a derivative liability. Pursuant to ASC 815-15, Derivatives and Hedging – Embedded Derivatives, the embedded conversion feature meets all three criteria to be bifurcated and accounted for separately from the host instrument, i.e., the Convertible Notes. Because this feature meets all criteria of a derivative instrument, it was accounted for and recorded as a derivative liability at fair value on the Company’s balance sheet with subsequent changes in fair value recorded in the consolidated statement of operations each reporting period.

Earnout liability

Earnout Liability

As a result of the Business Combination, the Company recognized additional earnout shares as a liability. Pursuant to ASC 805, Business Combinations, the initial fair value of the earnout shares was recorded as a liability with the offset going to additional paid-in capital and with subsequent changes in fair value recorded in the consolidated statement of operations for each reporting period. The following table provides a reconciliation of the beginning and ending balances for the earnout liability measured at fair value using significant unobservable inputs (Level 3):

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	2,265	$	83,144
(Gain) loss	(406)		(6,172)
Balance at end of period	$	1,859	$	76,972

Income taxes

Income taxes

Income taxes are accounted for using the asset and liability method which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the carrying amounts and the tax basis of other assets and liabilities. The Company provides for income taxes at the current and future enacted tax rates and laws applicable in each taxing jurisdiction. The Company uses a two-step approach for recognizing and measuring tax benefits taken or expected to be taken in a tax return and disclosures regarding uncertainties in income tax positions. The Company recognizes interest and penalties related to income tax matters in income tax expense in the consolidated statement of operations.

Net loss per share

Earnings per share

Basic earnings (loss) per share (“EPS”) are computed by dividing net earnings (loss) by the weighted average number of common shares outstanding for the period. Diluted EPS attributable to common shareholders is computed by adjusting net earnings by the weighted average number of common shares and potential common shares outstanding (if dilutive) during each period. Potential common shares include shares issuable upon exercise of stock options and vesting of restricted stock awards. Anti-dilutive securities are excluded from diluted EPS.

The Company applies the treasury stock method to account for the dilutive impact of its options, warrants and restricted stock units and the if converted method for its Convertible Note.

Recent accounting pronouncements issued

Recent accounting pronouncements issued and adopted

In June 2016, the Financial Accounting Standards Board issued Accounting Standards Update (“ASU”) 2016-13 related to the measurement of credit losses on financial instruments and has since modified the standard with several ASUs (collectively, the “credit loss standard”). The credit loss standard requires a financial asset (or a group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of the reported amount. The credit loss standard took effect for public entities for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. As amended in ASU 2019-10, for smaller reporting companies, the credit loss standard will take effect for fiscal years beginning after December 15, 2022, and for interim periods within those fiscal years. The adoption of this ASU will require a cumulative-effect adjustment to accumulated deficit as of the beginning of the first reporting period in which the guidance is effective (that is, a modified-retrospective approach). The Company adopted this standard on January 1, 2023, and this ASU did not have a material impact to the Company’s financial statements.

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Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2023

Accounting Policies [Abstract]

Concentrations of credit risk

The net sales to the following customers comprised more than 10% of revenues for the periods presented.

	Three Months Ended March 31,
	2023				2022
	Net Sales		% of Revenue		Net Sales		% of Revenue
Customer A	$	830	23	%	$	—	—	%
Customer B	788		22	%	—		—	%
Customer C	—		—	%	1,478		27	%
Customer D	—		—	%	1,965		36	%
Customer E	—		—	%	720		13	%
Total of customers with sales greater than 10%	$	1,618	45	%	$	4,163	76	%
Total of customers with sales less than 10%	1,948		55	%	1,249		24	%
Gross Revenue	$	3,566	100	%	$	5,412	100	%
Customer refunds(1)	(2,255)				—
Total Revenue, net of customer refunds	$	1,311			$	5,412

(1)    Customer refunds are related to the recall for certain 2021-2022 model year FE4-129 vehicles (“ZEV4”) that were manufactured with Romeo Power Systems, Inc (“Romeo”) battery packs. See section “Revenue Recognition” below for more detail concerning the accounting treatment and the section “Warranties and Recall Campaigns” for more detail on the recall.

Schedule of allowance for doubtful accounts activity

The following table details the change in the allowance for credit losses for the periods indicated:

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	2,028	$	3,349
Credit loss expense	961		48
Deductions	—		—
Balance at end of period	$	2,989	$	3,397

Schedule of estimated useful lives of our major classes of property and equipment

The estimated useful lives of the Company’s major classes of property and equipment are as follows:

Major Class of Property and Equipment	Estimated Useful Lives
Machinery and equipment	7 years
Vehicles	5 years
Leasehold improvements	5 years
Computer equipment	3 years
Software	3 years
Furniture and fixtures	7 years

Schedule of disaggregates revenue by major source

The following table disaggregates revenue by major source:

	Three Months Ended March 31,
	2023		2022
ZEVs	$	3,222	$	5,179
Other	344		233
Gross Revenue	$	3,566	$	5,412
Customer refunds(1)	(2,255)		—
Total Revenue, net of customer refunds	$	1,311	$	5,412

(1) Customer refunds are related to the recall for ZEV4 vehicles that were manufactured with Romeo battery packs.

Schedule of changes in contract liabilities

Changes in contract liabilities are as follows:

Balance as of December 31, 2022	$	794
Revenues recognized	(520)
Increase due to billings	623
Balance as of March 31, 2023	$	897

Schedule of fair value hierarchy

The following tables set forth by level within the fair value hierarchy the Company’s financial assets and liabilities that were measured at fair value on a recurring basis in the consolidated balance sheets.

	Level 1		Level 2		Level 3
As of March 31, 2023
Financial assets
Cash equivalents	$	31,768	$	—	$	—
Financial Liabilities
Warrant liability	$	—	$	—	$	54
Derivative liability	—		—		26
Earnout liability	—		—		1,859
As of December 31, 2022
Financial assets
Cash equivalents	$	51,351	$	—	$	—
Financial Liabilities
Warrant liability	$	—	$	—	$	60
Derivative liability	—		—		78
Earnout liability	—		—		2,265

Schedule of earnout liability

The following table provides a reconciliation of the beginning and ending balances for the earnout liability measured at fair value using significant unobservable inputs (Level 3):

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	2,265	$	83,144
(Gain) loss	(406)		(6,172)
Balance at end of period	$	1,859	$	76,972

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Inventories (Tables)

3 Months Ended

Mar. 31, 2023

Inventory Disclosure [Abstract]

Schedule of Inventories

At March 31, 2023 and December 31, 2022, inventories consist of the following:

	March 31, 2023		December 31, 2022
Raw materials	$	27,866	$	30,763
Work in progress	4,104		3,357
Finished goods	15,018		12,946
Total inventories	$	46,988	$	47,066

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Prepaid Expenses and Other Current Assets (Tables)

3 Months Ended

Mar. 31, 2023

Prepaid Expense and Other Assets, Current [Abstract]

Schedule of Prepaid Expenses and Other Current Assets

At March 31, 2023 and December 31, 2022, prepaid expenses and other current assets consist of the following:

	March 31, 2023		December 31, 2022
Vendor deposits	$	4,473	$	4,447
Prepaid insurance	1,021		2,367
Other prepaid expenses	2,309		2,559
Other current assets	23		28
Total prepaid expenses and other current assets	$	7,826	$	9,401

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Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2023

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment

Cost and accumulated depreciation as of March 31, 2023 and December 31, 2022 are as follows:

	March 31, 2023		December 31, 2022
Machinery and equipment	$	3,173	$	2,945
Vehicles	3,988		3,634
Leasehold improvements	3,355		3,660
Computer equipment	702		688
Software	11		11
Furniture and fixtures	1,086		969
Capital projects in progress	3,360		2,317
Total cost	15,675		14,224
Accumulated depreciation and amortization	(3,200)		(2,705)
Total property and equipment, net	$	12,475	$	11,519

Schedule of Property Plant and Equipment Depreciation and Amortization

Depreciation and amortization expense associated with property and equipment is as follows for the periods indicated:

	Three Months Ended March 31,
	2023		2022
Cost of revenues	$	159	$	85
Research and development	15		92
Selling, general and administrative	320		179
Total depreciation and amortization expense	$	494	$	356

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Accrued Expenses and Other Current Liabilities (Tables)

3 Months Ended

Mar. 31, 2023

Payables and Accruals [Abstract]

Schedule of Accrued Expenses and Other Current Liabilities

At March 31, 2023 and December 31, 2022, accrued expenses and other current liabilities consist of the following:

	March 31, 2023		December 31, 2022
Accrued professional services	$	1,077	$	597
Accrued interest	1,684		806
Accrued payroll and benefits	2,197		1,451
Other accrued expense	1,072		1,436
Warranty liability	1,851		1,268
Refund liability	3,228		—
Customer deposits	530		427
Deferred revenue	92		106
Current portion of finance lease obligation	181		179
Total accrued expenses and other current liabilities	$	11,912	$	6,270

Schedule of Changes in Warrant Liability

Changes in warranty liability (included in accrued expenses and other current liabilities) were as follows:

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	1,268	$	994
Charge for the period	558		252
Utilized during the period	25		(55)
Balance at end of period	$	1,851	$	1,191

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Notes Payable (Tables)

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Schedule of Notes Payable

Notes payable as of March 31, 2023 and December 31, 2022 consist of the following:

	March 31, 2023		December 31, 2022
Convertible Note	$	59,863	$	73,863
Facility	3,000		3,000
Total debt principal	62,863		76,863
Unamortized debt discount - Convertible Note	(10,086)		(14,735)
Unamortized debt discount - Facility	(22)		(25)
Total long-term debt	$	52,755	$	62,103

Schedule of Convertible Note Derivative Liability Measured at Fair Value

The following table provides a reconciliation of the beginning and ending balances for the Convertible Note derivative liability measured at fair value using significant unobservable inputs (Level 3):

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	78	$	17,418
(Gain) Loss	(39)		(2,555)
Change resulting from conversions	(13)		—
Balance at end of period	$	26	$	14,863

Schedule of Debt Maturities

The total balance of all debt matures as follows:

Period Ending December 31,	Amount
2023 (remainder of the year)	$	—
2024	62,863
2025	—
Thereafter	—
Total	$	62,863

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Leases (Tables)

3 Months Ended

Mar. 31, 2023

Leases [Abstract]

Schedule of Right-of-Use Assets and Lease Liabilities

Right-of-use assets and lease liabilities as of March 31, 2023 and December 31, 2022 consist of the following:

	March 31, 2023				December 31, 2022
	Operating		Finance		Operating		Finance
Assets
Right-of-use assets, net (1)	$	7,411	$	855	$	7,735	$	893
Liabilities
Lease obligation - current portion (2)	$	1,734	$	181	$	1,649	$	179
Lease obligation - long-term portion (3)	7,262		573		7,735		619
Total lease obligations	$	8,996	$	754	$	9,384	$	798
Weighted average remaining lease terms (in years)	3.9		4.6		4.2		4.8
Weighted average discount rate	15%		4%		15%		4%

(1)Finance right-of-use assets, net are included in “Other assets” on the consolidated balance sheets.

(2)Finance lease obligation – current portion is included in “Accrued expenses and other current liabilities” on the consolidated balance sheets.

(3)Finance lease obligation – long-term portion is included in “Other long-term liabilities” on the consolidated balance sheets.

Schedule of Lease Cost

The financing lease cost for the three months ended March 31, 2023 and 2022 was immaterial.

	Three Months Ended March 31,
	2023		2022
Operating Lease Cost
Cost of revenues	$	404	$	261
Research and development	76		308
Selling, general and administrative	183		78
Total operating lease cost	$	663	$	647

Schedule of Maturities - Operating Lease Liability

The maturities of the Company’s lease liabilities are as follows:

	March 31, 2023
	Operating		Finance
2023 (remainder of year)	$	2,186	$	154
2024	2,997		205
2025	3,043		160
2026	3,105		128
2027	517		82
Thereafter	—		84
Total future minimum lease payments	11,848		813
Less: imputed interest	(2,852)		(59)
Total maturities	$	8,996	$	754

Schedule of Maturities - Finance Lease Liability

The maturities of the Company’s lease liabilities are as follows:

	March 31, 2023
	Operating		Finance
2023 (remainder of year)	$	2,186	$	154
2024	2,997		205
2025	3,043		160
2026	3,105		128
2027	517		82
Thereafter	—		84
Total future minimum lease payments	11,848		813
Less: imputed interest	(2,852)		(59)
Total maturities	$	8,996	$	754

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Capital Structure (Tables)

3 Months Ended

Mar. 31, 2023

Equity [Abstract]

Schedule of Warrant Activity

The following table presents information for privately placed warrants that were assumed in the Business Combination:

	Number of Warrants(1)	Warrant Fair Value		Weighted Average Exercise Price		Weighted Average Remaining Life
Private warrants assumed through Business Combination
Outstanding at December 31, 2021	670,108	$	2,185	$	230.00	4.3
Change in fair value	—	(2,125)		—		—
Outstanding — December 31, 2022	670,108	60		230.00		3.4
Change in fair value	—	(6)		—		—
Outstanding — March 31, 2023	670,108	54		230.00		3.1

(1)     The 670,108 private placement warrants are convertible into 33,505 shares of common stock outstanding. Each warrant entitles the holder to purchase 1/20th of a share of common stock at a price of $230.00 per whole share, subject to adjustment.

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Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Stock-Based Compensation Related to Stock Options and RSUs

The following table presents the stock-based compensation related to stock option and RSU awards for the periods presented:

	Three Months Ended March 31,
	2023		2022
Stock options expense
Cost of revenues	$	2	$	5
Research and development	6		9
Selling, general and administrative	197		192
Total stock options expense	$	205	$	206
Restricted stock units expense
Cost of revenues	$	87	$	54
Research and development	61		46
Selling, general and administrative	1,089		666
Total restricted stock units expense	$	1,237	$	766
Total stock-based compensation	$	1,442	$	972

Schedule of Unrecognized Expense for Stock Options and RSUs

The estimated unrecognized expense for stock options and RSUs not vested as of March 31, 2023, which will be recognized over the remaining requisite service period, is as follows:

Stock options unrecognized expense	$	1,907
Stock options weighted-average remaining requisite service period (in years)	2.0
Restricted stock units unrecognized expense	$	10,079
Restricted stock units weighted-average remaining requisite service period (in years)	2.4

Schedule of Stock Options

Changes in the Company’s stock options for the three months ended March 31, 2023 are presented in the table below.

	Number of Options	Weighted Average Exercise Price per Share		Aggregate Intrinsic Value (in thousands)		Weighted Average Remaining Life (in years)
Outstanding at January 1, 2023	138,091	$	45.60
Granted	—	—
Exercised	(6,744)	1.20
Forfeited	(206)	11.60
Expired	—	—
Outstanding at March 31, 2023	131,141	47.80		$	197	7.7
Vested and exercisable at March 31, 2023	60,487	78.40		130		7.2

Schedule of Non-Vested Share Awards

Changes in the status of the Company’s non-vested stock option awards for the three months ended March 31, 2023 are presented in the table below.

	Non-vested Shares Under Option	Weighted Average Grant Date Fair Value per Share
Non-vested at January 1, 2023	73,939	$	35.00
Granted	—	—
Vested	(3,080)	33.80
Forfeited	(206)	42.60
Non-vested at March 31, 2023	70,654	35.00

Schedule of Restricted Stock Awards

The Company grants RSU awards to employees that generally vest over 3 years. RSU awards are valued based on the closing market price of the Company’s common stock on the grant date.

	Number of RSUs	Weighted Average Grant Date Fair Value per Share
Outstanding at January 1, 2023	188,223	$	71.40
Granted	47,178	12.00
Vested	(5,753)	98.00
Forfeited	(8,784)	57.80
Outstanding at March 31, 2023	220,865	58.40

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Earnings (Loss) per Common Share (Tables)

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Schedule of Reconciliation of Common Shares Used to Calculate Basic and Diluted Earnings Per Common Share

The following table reconciles the earnings (loss) and number of common shares used to calculate basic and diluted earnings per common share attributable to the Company’s shareholders:

	Three Months Ended March 31,
	2023		2022
Basic earnings per common share:
Net income (loss) - basic	$	(23,435)	$	(10,756)
Weighted shares outstanding - basic	4,794,178		3,756,402
Basic earnings (loss) per common share	$	(4.89)	$	(2.86)
Diluted earnings per common share:
Net income (loss) - basic	$	(23,435)	$	(10,756)
Net income (loss) - diluted	$	(23,435)	$	(10,756)
Weighted shares outstanding - basic	4,794,178		3,756,402
Weighted shares outstanding - diluted	4,794,178		3,756,402
Diluted earnings (loss) per common share	$	(4.89)	$	(2.86)

Schedule of Securities Excluded

	Outstanding as of March 31,
	2023	2022
Convertible notes payable	260,273	382,012
Outstanding warrants	1,218,286	1,218,286
Stock options	131,141	157,285
Restricted stock units	220,865	51,414
Total anti-dilutive stock	1,830,565	1,808,997

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2023

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Commitments

The amounts in the table below represent the Company’s future minimum commitments.

	As of March 31, 2023
	Firm Purchase		Other		Total
2023 (remainder of the year)	$	55,742	$	725	$	56,467
2024	—		482		482
2025	—		203		203
2026	—		163		163
2027	—		12		12
Thereafter	—		—		—
Total	$	55,742	$	1,585	$	57,327

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Description of Business and Basis of Presentation - Additional Information (Details)		3 Months Ended		5 Months Ended
	Apr. 27, 2023 $ / shares shares	Mar. 31, 2023 USD ($) $ / shares shares	Mar. 31, 2022 USD ($)	May 16, 2023 USD ($)	Dec. 31, 2022 USD ($) $ / shares shares
Class of Stock [Line Items]
Common stock, par value (in dollars per share) | $ / shares		$ 0.0001			$ 0.0001
Common stock, authorized (in shares) | shares		250,000,000			250,000,000
Cash and cash equivalents		$ 35,447,000			$ 56,011,000
Net loss		(23,435,000)	$ (10,756,000)
Net cash used in operating activities		(18,851,000)	$ (16,142,000)
Working capital		82,234,000
Equity line of credit agreement, shares sold		$ 0
Subsequent Event
Class of Stock [Line Items]
Stock split, conversion ratio	0.05
Common stock, par value (in dollars per share) | $ / shares	$ 0.0001
Common stock, authorized (in shares) | shares	250,000,000
Equity line of credit agreement, shares sold				$ 0

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Summary of Significant Accounting Policies - Additional Information (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($) item customer	Mar. 31, 2022 USD ($) item	Dec. 31, 2022 USD ($) item customer	May 06, 2021 USD ($)
Concentration Risk [Line Items]
Concentrations of credit risk (as a percent)	100.00%	100.00%
Impairment of long-lived assets	$ 0	$ 0
Revenues recognized	(520,000)
Facility	62,863,000		$ 76,863,000
Selling, general and administrative
Concentration Risk [Line Items]
Advertising costs	214,000	$ 116,000
Convertible Note due in May 2024
Concentration Risk [Line Items]
Interest rate (as a percent)				7.50%
Convertible note	59,863,000		73,863,000	$ 100,000,000
Fair value of convertible debt	$ 49,167,000		58,155,000	$ 17,063,000
Facility
Concentration Risk [Line Items]
Interest rate (as a percent)	15.00%
Facility	$ 3,000,000		3,000,000
Notes payable, fair value	$ 3,106,000		$ 3,125,000
Customer Concentration Risk | Accounts Receivable
Concentration Risk [Line Items]
Number of customers | customer	2		2
Customer Concentration Risk | Accounts Receivable | Customer One
Concentration Risk [Line Items]
Concentrations of credit risk (as a percent)	31.00%		40.00%
Customer Concentration Risk | Accounts Receivable | Customer Two
Concentration Risk [Line Items]
Concentrations of credit risk (as a percent)	18.00%		25.00%
Supplier Concentration Risk | Accounts Payable
Concentration Risk [Line Items]
Number of suppliers | item	1		2
Supplier Concentration Risk | Accounts Payable | Supplier One
Concentration Risk [Line Items]
Concentrations of credit risk (as a percent)	21.00%		20.00%
Supplier Concentration Risk | Accounts Payable | Supplier Two
Concentration Risk [Line Items]
Concentrations of credit risk (as a percent)			15.00%
Supplier Concentration Risk | Inventory Purchases
Concentration Risk [Line Items]
Number of suppliers | item	2	1
Supplier Concentration Risk | Inventory Purchases | Supplier One
Concentration Risk [Line Items]
Concentrations of credit risk (as a percent)	18.00%	13.00%
Supplier Concentration Risk | Inventory Purchases | Supplier Two
Concentration Risk [Line Items]
Concentrations of credit risk (as a percent)	14.00%

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Summary of Significant Accounting Policies - Concentrations of Credit Risk (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Concentration Risk [Line Items]
Net sales	$ 3,566	$ 5,412
Customer refunds	(2,255)	0
Total Revenue, net of customer refunds	$ 1,311	$ 5,412
% of Revenue	100.00%	100.00%
Revenue from Contract with Customer Benchmark | Customer Concentration Risk
Concentration Risk [Line Items]
Net sales	$ 1,618	$ 4,163
Concentration risk, threshold percentage	45.00%	76.00%
Revenue from Contract with Customer Benchmark | Customer Concentration Risk | Customer A
Concentration Risk [Line Items]
Net sales	$ 830	$ 0
% of Revenue	23.00%	0.00%
Revenue from Contract with Customer Benchmark | Customer Concentration Risk | Customer B
Concentration Risk [Line Items]
Net sales	$ 788	$ 0
% of Revenue	22.00%	0.00%
Revenue from Contract with Customer Benchmark | Customer Concentration Risk | Customer C
Concentration Risk [Line Items]
Net sales	$ 0	$ 1,478
% of Revenue	0.00%	27.00%
Revenue from Contract with Customer Benchmark | Customer Concentration Risk | Customer D
Concentration Risk [Line Items]
Net sales	$ 0	$ 1,965
% of Revenue	0.00%	36.00%
Revenue from Contract with Customer Benchmark | Customer Concentration Risk | Customer E
Concentration Risk [Line Items]
Net sales	$ 0	$ 720
% of Revenue	0.00%	13.00%
Revenue from Contract with Customer Benchmark | Customer Concentration Risk | Total of customers with sales less than 10%
Concentration Risk [Line Items]
Net sales	$ 1,948	$ 1,249
% of Revenue	55.00%	24.00%

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Summary of Significant Accounting Policies - Accounts Receivable (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 2,028	$ 3,349
Charges to expense	961	48
Deductions	0	0
Balance at end of period	$ 2,989	$ 3,397

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Summary of Significant Accounting Policies - Estimated Useful Lives of Our Major Classes of Property and Equipment (Details)	3 Months Ended
	Mar. 31, 2023
Machinery and equipment
Property, Plant and Equipment [Line Items]
Useful lives	7 years
Vehicles
Property, Plant and Equipment [Line Items]
Useful lives	5 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Useful lives	5 years
Computer equipment
Property, Plant and Equipment [Line Items]
Useful lives	3 years
Software
Property, Plant and Equipment [Line Items]
Useful lives	3 years
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful lives	7 years

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Summary of Significant Accounting Policies - Disaggregation of Revenue and Additional Information (Details) mi² in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) mi²	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Revenue Summary
Net sales	$ 3,566	$ 5,412
Customer refunds	(2,255)	0
Total Revenue, net of customer refunds	$ 1,311	5,412
Payment terms, once contract executed, deposit required, percent	20.00%
Inventories	$ 46,988		$ 47,066
Refund liability	$ 3,228		$ 0
Product warranty period	5 years
Warranty area covered | mi²	60
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Revenue Summary
Revenue remaining performance obligation	$ 10,500
Revenue remaining performance obligation (in years)	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-09-01 | Long-Term Contract with Customer
Revenue Summary
Revenue remaining performance obligation	$ 206
Revenue remaining performance obligation (in years)	3 years
ZEVs
Revenue Summary
Net sales	$ 3,222	5,179
Other
Revenue Summary
Net sales	344	$ 233
ZEV4 Recalls
Revenue Summary
Refund liability associated with recalls on a gross basis	5,037
Inventories	2,171
Refund liability	3,228
Contract asset	$ 611

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Summary of Significant Accounting Policies - Changes in Contract Liabilities (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Contract With Customer Change In Contract Liability [Roll Forward]
Beginning balance	$ 794
Revenues recognized	(520)
Increase due to billings	623
Ending balance	$ 897

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Summary of Significant Accounting Policies - Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Level 1
Financial assets
Cash equivalents	$ 31,768	$ 51,351
Financial Liabilities
Warrant liability	0	0
Derivative liability	0	0
Earnout liability	0	0
Level 2
Financial assets
Cash equivalents	0	0
Financial Liabilities
Warrant liability	0	0
Derivative liability	0	0
Earnout liability	0	0
Level 3
Financial assets
Cash equivalents	0	0
Financial Liabilities
Warrant liability	54	60
Derivative liability	26	78
Earnout liability	$ 1,859	$ 2,265

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Summary of Significant Accounting Policies - Earnout Liability (Details) - Earnout Liability - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 2,265	$ 83,144
(Gain) loss	(406)	(6,172)
Ending balance	$ 1,859	$ 76,972

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Inventories (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw materials	$ 27,866		$ 30,763
Work in progress	4,104		3,357
Finished goods	15,018		12,946
Total inventories	46,988		$ 47,066
Provision for inventory obsolescence and write-downs	$ 3,256	$ 95

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Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Prepaid Expense and Other Assets, Current [Abstract]
Vendor deposits	$ 4,473	$ 4,447
Prepaid insurance	1,021	2,367
Other prepaid expenses	2,309	2,559
Other current assets	23	28
Total prepaid expenses and other current assets	$ 7,826	$ 9,401

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Property and Equipment - Cost and Accumulated Depreciation (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total cost	$ 15,675	$ 14,224
Accumulated depreciation and amortization	(3,200)	(2,705)
Total property and equipment, net	12,475	11,519
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total cost	3,173	2,945
Vehicles
Property, Plant and Equipment [Line Items]
Total cost	3,988	3,634
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total cost	3,355	3,660
Computer equipment
Property, Plant and Equipment [Line Items]
Total cost	702	688
Software
Property, Plant and Equipment [Line Items]
Total cost	11	11
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total cost	1,086	969
Capital projects in progress
Property, Plant and Equipment [Line Items]
Total cost	$ 3,360	$ 2,317

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Property and Equipment - Depreciation and Amortization (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Property, Plant and Equipment [Line Items]
Total depreciation and amortization expense	$ 494	$ 356
Cost of revenues
Property, Plant and Equipment [Line Items]
Total depreciation and amortization expense	159	85
Research and development
Property, Plant and Equipment [Line Items]
Total depreciation and amortization expense	15	92
Selling, general and administrative
Property, Plant and Equipment [Line Items]
Total depreciation and amortization expense	$ 320	$ 179

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Accrued Expenses and Other Current Liabilities - Summary (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Accrued professional services	$ 1,077	$ 597
Accrued interest	1,684	806
Accrued payroll and benefits	2,197	1,451
Other accrued expense	1,072	1,436
Warranty liability	1,851	1,268
Refund liability	3,228	0
Customer deposits	530	427
Deferred revenue	92	106
Current portion of finance lease obligation	181	179
Total accrued expenses and other current liabilities	$ 11,912	$ 6,270

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Accrued Expenses and Other Current Liabilities - Changes in Warrant Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]
Balance at beginning of period	$ 1,268	$ 994
Charge for the period	558	252
Utilized during the period	25	(55)
Balance at end of period	$ 1,851	$ 1,191

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Notes Payable - Components (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	May 06, 2021
Notes Payable
Long term debt	$ 62,863	$ 76,863
Total debt less unamortized debt discount	52,755	62,103
Convertible Note due in May 2024
Notes Payable
Convertible Note	59,863	73,863	$ 100,000
Unamortized debt discount	(10,086)	(14,735)
Facility
Notes Payable
Long term debt	3,000	3,000
Unamortized debt discount	$ (22)	$ (25)

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Notes Payable - Additional Information (Details) $ / shares in Units, $ in Thousands					3 Months Ended		12 Months Ended
	Mar. 15, 2023 USD ($) $ / shares shares	Feb. 10, 2023 USD ($) $ / shares shares	Nov. 21, 2022 USD ($) $ / shares shares	May 06, 2021 USD ($) day $ / shares shares	Mar. 31, 2023 USD ($) $ / shares shares	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) shares	Dec. 31, 2022 USD ($) $ / shares
Notes Payable
Gain on extinguishment of debt					$ (2,965)	$ 0
Common stock, par value (in dollars per share) | $ / shares					$ 0.0001			$ 0.0001
Amortization of debt discount					$ 2,171	2,119
Convertible note warrants
Notes Payable
Warrants to purchase shares (in shares) | shares					434,782
Warrants issued in connection with the Convertible Note				$ 14,522
Convertible Note due in May 2024
Notes Payable
Interest rate (as a percent)				7.50%
Convertible note				$ 100,000	$ 59,863			$ 73,863
Issuance costs				$ 5,000
Conversion price (in dollars per share) | $ / shares				$ 230.00
Warrants to purchase shares (in shares) | shares				434,782
Warrant exercise price (in dollars per share) | $ / shares				$ 230.00
Percentage of stock price trigger				120.00%
Stock price trigger (in dollars per share) | $ / shares				$ 276.00
Threshold trading days | day				20
Threshold consecutive trading days | day				30
Average daily trading volume				$ 3,000
Fair value of convertible debt				$ 17,063	49,167			58,155
Debt conversion, original amount	$ 10,500	$ 3,500	$ 14,000				$ 12,137
Common stock issued on conversion of notes (in shares) | shares	937,500	210,443	663,822				52,769
Gain on extinguishment of debt	$ (2,919)	$ (46)	$ (2,921)				$ (2,194)
Fair value of common stock issued	5,754	2,811	8,138				10,089
Cash paid for remaining annual interest due							668
Carrying amount of converted debt	8,669	2,850	11,021				7,966
Fair value of convertible note derivative liability	$ 5	$ 8	$ 38				$ 4,985
Common stock, par value (in dollars per share) | $ / shares	$ 0.0001	$ 0.0001	$ 0.0001
Share issue price (in usd per share) | $ / shares	$ 11.20	$ 15.80	$ 21.00
Debt converted, percentage of par value		95.00%
Interest expense					3,421	3,762
Contractual interest expense					1,254	1,647
Amortization of debt discount					$ 2,167	2,115
Convertible Note due in May 2024 | Convertible note warrants
Notes Payable
Stock price trigger (in dollars per share) | $ / shares				$ 230.00
Facility
Notes Payable
Interest rate (as a percent)					15.00%
Interest expense					$ 118	$ 118
Maximum borrowing capacity					6,700
Threshold indebtedness					5,000
Borrowings under line of credit					$ 3,000			$ 3,000

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Notes Payable - Convertible Note Derivative Liability (Details) - Convertible Note due in May 2024 - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Increase (decrease) in convertible note derivative liability
Beginning balance	$ 78	$ 17,418
(Gain) Loss	(39)	(2,555)
Change resulting from conversions	(13)	0
Ending balance	$ 26	$ 14,863

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Notes Payable - Debt Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt maturities
2023 (remainder of the year)	$ 0
2024	62,863
2025	0
Thereafter	0
Total debt	$ 62,863	$ 76,863

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Leases - Right-of-Use Assets and Lease Liabilities and Finance Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Assets
Right-of-use assets	$ 7,411		$ 7,735
Liabilities
Operating lease obligation - current portion	1,734		1,649
Operating lease obligation - long-term portion	7,262		7,735
Total lease obligations	$ 8,996		$ 9,384
Weighted average remaining lease terms (in years)	3 years 10 months 24 days		4 years 2 months 12 days
Weighted average discount rate	15.00%		15.00%
Finance Lease Assets:
Right-of-use assets	$ 855		$ 893
Finance lease obligation - current portion	181		179
Finance lease obligation - long-term portion	573		619
Total lease obligations	$ 754		$ 798
Weighted average remaining lease terms (in years)	4 years 7 months 6 days		4 years 9 months 18 days
Weighted average discount rate	4.00%		4.00%
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets		Other assets
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other current liabilities		Accrued expenses and other current liabilities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other long-term liabilities		Other long-term liabilities
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other long-term liabilities, Accrued expenses and other current liabilities		Other long-term liabilities, Accrued expenses and other current liabilities
Total operating lease cost	$ 663	$ 647
Cost of revenues
Finance Lease Assets:
Total operating lease cost	404	261
Research and development
Finance Lease Assets:
Total operating lease cost	76	308
Selling, general and administrative
Finance Lease Assets:
Total operating lease cost	$ 183	$ 78

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Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Operating lease liabilities
2023 (remainder of year)	$ 2,186
2024	2,997
2025	3,043
2026	3,105
2027	517
Thereafter	0
Total future minimum lease payments	11,848
Less: imputed interest	(2,852)
Total maturities	8,996	$ 9,384
Finance lease liabilities
2023 (remainder of year)	154
2024	205
2025	160
2026	128
2027	82
Thereafter	84
Total future minimum lease payments	813
Less: imputed interest	(59)
Total maturities	$ 754	$ 798

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Capital Structure - Equity Line of Credit (Details) - USD ($)		3 Months Ended
	Aug. 30, 2022	Mar. 31, 2023	Sep. 30, 2022
Class of Stock [Line Items]
Equity line of credit agreement, prohibited from issuance or sell of shares resulting in beneficial ownership, percentage (more than)	9.99%
Equity line of credit agreement, anniversary of closing date	36 months
Issuance of common stock, commitment fee			$ 851,000
Equity line of credit agreement, shares sold		$ 0
Common Stock
Class of Stock [Line Items]
Equity line of credit agreement, purchase commitment (up to)	$ 50,000,000
Common Stock | Lincoln Park Capital Fund, LLC
Class of Stock [Line Items]
Shares issued (in shares)			14,974

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Capital Structure - Warrants (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	May 06, 2021
Outstanding warrants
Class of Warrant or Right [Line Items]
Warrants to purchase shares (in shares)	1,218,285
Warrant exercise price (in dollars per share)	$ 230.00
Public warrant
Class of Warrant or Right [Line Items]
Warrants to purchase shares (in shares)	749,998
Warrants outstanding (in shares)	14,999,970
Convertible note warrants
Class of Warrant or Right [Line Items]
Warrants to purchase shares (in shares)	434,782
Warrants outstanding (in shares)	8,695,641
Total warrant fair value		$ 14,522
Private placement warrant
Class of Warrant or Right [Line Items]
Warrants to purchase shares (in shares)	33,505
Warrants outstanding (in shares)	670,108
Total warrant fair value		$ 1,253
Private Placement and Convertible Note Warrants
Class of Warrant or Right [Line Items]
Redemption price per warrant (in dollars per share)	$ 0.01
Period of prior written notice for redemption of warrants	30 days
Stock price trigger for redemption of warrants (in dollars per share)	$ 360.00
Threshold trading days for redemption of warrants	20 days
Threshold consecutive trading days for redemption of warrants	30 days

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Capital Structure - Schedule of Warrants (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Warrant Fair Value
Outstanding at beginning of period	$ 60
Change in fair value	(6)	$ (188)
Outstanding at end of period	$ 54		$ 60
Private warrants assumed through Business Combination
Number of Warrants
Outstanding at beginning of period (in shares)	670,108	670,108	670,108
Outstanding at end of period (in shares)	670,108		670,108	670,108
Warrant Fair Value
Outstanding at beginning of period	$ 60	$ 2,185	$ 2,185
Change in fair value	(6)	$ (2,125)
Outstanding at end of period	$ 54		$ 60	$ 2,185
Weighted Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 230.00	$ 230.00	$ 230.00
Outstanding at end of period (in dollars per share)	$ 230.00		$ 230.00	$ 230.00
Weighted Average Remaining Life
Outstanding (years)	3 years 1 month 6 days		3 years 4 months 24 days	4 years 3 months 18 days

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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Equity Incentive Plans
Intrinsic value of stock options exercised	$ 60	$ 106
Employer cash contribution	$ 257	$ 165
2021 Equity Incentive Plan
Equity Incentive Plans
Shares reserved (in shares)	889,712
Available for grant (in shares)	586,128
2019 Equity Incentive Plan
Equity Incentive Plans
Available for grant (in shares)	0
Options granted (in shares)	82,746
401(k) Savings Plan Part 1
Equity Incentive Plans
Defined contribution plan, employer matching contribution, percent of employees' gross pay	100.00%
Defined contribution plan, employer matching contribution, percent of match	3.00%
401(k) Savings Plan Part 2
Equity Incentive Plans
Defined contribution plan, employer matching contribution, percent of employees' gross pay	50.00%
Defined contribution plan, employer matching contribution, percent of match	2.00%
Stock options
Equity Incentive Plans
Servicing period	10 years
Vesting period	4 years
Restricted stock units
Equity Incentive Plans
Vesting period	3 years

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Stock-Based Compensation - Stock-Based Compensation and Estimated Unrecognized Expense Related to Stock Options and RSUs (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Equity Incentive Plans
Total stock-based compensation	$ 1,442	$ 972
Stock options
Equity Incentive Plans
Total stock-based compensation	205	206
Stock options unrecognized expense	$ 1,907
Remaining vesting period (in years)	2 years
Stock options | Cost of revenues
Equity Incentive Plans
Total stock-based compensation	$ 2	5
Stock options | Research and development
Equity Incentive Plans
Total stock-based compensation	6	9
Stock options | Selling, general and administrative
Equity Incentive Plans
Total stock-based compensation	197	192
Restricted stock units
Equity Incentive Plans
Total stock-based compensation	$ 1,237	766
Remaining vesting period (in years)	2 years 4 months 24 days
Restricted stock units unrecognized expense	$ 10,079
Restricted stock units | Cost of revenues
Equity Incentive Plans
Total stock-based compensation	87	54
Restricted stock units | Research and development
Equity Incentive Plans
Total stock-based compensation	61	46
Restricted stock units | Selling, general and administrative
Equity Incentive Plans
Total stock-based compensation	$ 1,089	$ 666

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Stock-Based Compensation - Changes in Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Number of Options
Outstanding at Beginning of period (in shares)	138,091
Granted (in shares)	0
Exercised (in shares)	(6,744)
Forfeited (in shares)	(206)
Expired (in shares)	0
Outstanding at end of period (in shares)	131,141
Vested and exercisable at end of period (in shares)	60,487
Weighted Average Exercise Price per Share
Outstanding at Beginning of period (in dollars per share)	$ 45.60
Granted (in dollars per share)	0
Exercised (in dollars per share)	1.20
Forfeited (in dollars per share)	11.60
Expired (in dollars per share)	0
Outstanding at end of period (in dollars per share)	47.80
Vested and exercisable at end of period (in dollars per share)	$ 78.40
Aggregate Intrinsic Value, Outstanding	$ 197
Aggregate Intrinsic Value, Vested and exercisable	$ 130
Weighted Average Remaining Life
Outstanding at end of period	7 years 8 months 12 days
Vested and exercisable at end of period	7 years 2 months 12 days
Weighted average grant date fair value of stock options granted	$ 0
Intrinsic value of stock options exercised	$ 60	$ 106

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Stock-Based Compensation - Changes in Status of Non-Vested Share Awards (Details)	3 Months Ended
	Mar. 31, 2023 $ / shares shares
Non-vested Shares Under Option
Non-vested at beginning of period (in shares) | shares	73,939
Granted (in shares) | shares	0
Vested (in shares) | shares	(3,080)
Forfeited (in shares) | shares	(206)
Non-vested at end of period (in shares) | shares	70,654
Weighted Average Grant Date Fair Value per Share
Non-vested at beginning of period (in dollars per share) | $ / shares	$ 35.00
Granted (in dollars per share) | $ / shares	0
Vested (in dollars per share) | $ / shares	33.80
Forfeited (in dollars per share) | $ / shares	42.60
Non-vested at end of period (in dollars per share) | $ / shares	$ 35.00

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Stock-Based Compensation - Restricted Stock Unit Awards (Details) - Restricted stock units	3 Months Ended
	Mar. 31, 2023 $ / shares shares
Number of RSUs
Outstanding at beginning of period (in shares) | shares	188,223
Granted (in shares) | shares	47,178
Vested (in shares) | shares	(5,753)
Forfeited (in shares) | shares	(8,784)
Outstanding at ending of period (in shares) | shares	220,865
Weighted Average Grant Date Fair Value per Share
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 71.40
Granted (in dollars per share) | $ / shares	12.00
Vested (in dollars per share) | $ / shares	98.00
Forfeited (in dollars per share) | $ / shares	57.80
Outstanding at ending of period (in dollars per share) | $ / shares	$ 58.40

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 0	$ 0
Effective income tax rate	0.00%	0.00%

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Earnings (Loss) per Common Share - Reconciliation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Basic earnings per common share:
Net income (loss) - basic	$ (23,435)	$ (10,756)
Weighted shares outstanding - basic (in shares)	4,794,178	3,756,402
Basic earnings (loss) per share (in dollars per share)	$ (4.89)	$ (2.86)
Diluted earnings per common share:
Net income (loss) - basic	$ (23,435)	$ (10,756)
Net income (loss) - diluted	$ (23,435)	$ (10,756)
Weighted shares outstanding - basic (in shares)	4,794,178	3,756,402
Weighted-average shares outstanding -diluted (in shares)	4,794,178	3,756,402
Diluted earnings (loss) per common share (in dollars per share)	$ (4.89)	$ (2.86)

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Earnings (Loss) per Common Share - Schedule of Securities Excluded (Details) - shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential antidilutive shares (in shares)	1,830,565	1,808,997
Convertible notes payable
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential antidilutive shares (in shares)	260,273	382,012
Outstanding warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential antidilutive shares (in shares)	1,218,286	1,218,286
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential antidilutive shares (in shares)	131,141	157,285
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential antidilutive shares (in shares)	220,865	51,414

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Commitments and Contingencies - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Firm purchase commitment loss	$ 600

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Commitments and Contingencies - Future Minimum Commitments (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Firm Purchase
2023 (remainder of the year)	$ 55,742
2024	0
2025	0
2026	0
2027	0
Thereafter	0
Total	55,742
Other
2023 (remainder of the year)	725
2024	482
2025	203
2026	163
2027	12
Thereafter	0
Total	1,585
Total
2023 (remainder of the year)	56,467
2024	482
2025	203
2026	163
2027	12
Thereafter	0
Total Commitments	$ 57,327

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Subsequent Events (Details)	Apr. 27, 2023 $ / shares shares	Apr. 26, 2023 $ / shares shares	Mar. 31, 2023 $ / shares shares	Dec. 31, 2022 $ / shares shares
Subsequent Event [Line Items]
Common stock, par value (in dollars per share) | $ / shares			$ 0.0001	$ 0.0001
Common stock, authorized (in shares)			250,000,000	250,000,000
Warrants
Subsequent Event [Line Items]
Warrant exercise price (in dollars per share) | $ / shares			$ 230.00
Warrants to purchase shares (in shares)			1,218,285
Subsequent Event
Subsequent Event [Line Items]
Stock split, conversion ratio	0.05
Common stock, par value (in dollars per share) | $ / shares	$ 0.0001
Fractional shares issued (in shares)	0
Common stock, authorized (in shares)	250,000,000
Subsequent Event | Warrants
Subsequent Event [Line Items]
Number of shares called by each warrant (in shares)		1
Warrant exercise price (in dollars per share) | $ / shares	$ 230.00	$ 11.50
Warrants to purchase shares (in shares)		749,998