10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 _________________________________

FORM 10-Q

 _______________________________________________________

☒ 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

☐ 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 : 001-35803

 _______________________________________________________

Mallinckrodt plc

(Exact name of registrant as specified in its charter)

 _______________________________________________________

Ireland	98-1088325
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

College Business & Technology Park, Cruiserath,

Blanchardstown, Dublin 15, Ireland

(Address of principal executive offices) (Zip Code)

Telephone: +353 1 696 0000

(Registrant's telephone number, including area code)

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

(Title of each class)	(Trading Symbol(s))	(Name of each exchange on which registered)
Ordinary shares, par value $0.01 per share	MNK	NYSE American LLC

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  ☒     No  ☐

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  ☒     No  ☐

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	☐	Accelerated Filer	☒	Emerging Growth Company	☐
Non-accelerated Filer	☐	Smaller Reporting Company	☐

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  ☒

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Sections 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court. Yes ☒ No ☐

As of May 5, 2023, the registrant had 13,170,932 ordinary shares outstanding at $0.01 par value.

MALLINCKRODT PLC

INDEX

		Page
PART I.	FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited).
	Condensed Consolidated Statements of Operations for the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor).	2
	Condensed Consolidated Statements of Comprehensive Operations for the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor).	3
	Condensed Consolidated Balance Sheets as of March 31, 2023 (Successor) and December 30, 2022 (Successor).	4
	Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor).	5
	Condensed Consolidated Statements of Changes in Shareholders' Equity for the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor).	6
	Notes to Condensed Consolidated Financial Statements.	7
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations.	21
Item 3.	Quantitative and Qualitative Disclosures About Market Risk.	29
Item 4.	Controls and Procedures.	30
PART II.	OTHER INFORMATION
Item 1.	Legal Proceedings.	31
Item 1A.	Risk Factors.	31
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds.	31
Item 6.	Exhibits.	32
SIGNATURES		33

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements.

MALLINCKRODT PLC

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited, in millions, except per share data)

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Net sales	$	424.6	$	490.9
Cost of sales	374.8		315.2
Gross profit	49.8		175.7
Selling, general and administrative expenses	122.9		152.5
Research and development expenses	28.3		37.2
Restructuring charges, net	1.2		6.8
Operating loss	(102.6)		(20.8)
Interest expense	(162.0)		(58.2)
Interest income	4.7		0.4
Other expense, net	(14.6)		(4.1)
Reorganization items, net	(5.6)		(43.4)
Loss from continuing operations before income taxes	(280.1)		(126.1)
Income tax benefit	(30.8)		(5.9)
Loss from continuing operations	(249.3)		(120.2)
Income from discontinued operations, net of income taxes	—		0.6
Net loss	$	(249.3)	$	(119.6)
Basic (loss) income per share (Note 5):
Loss from continuing operations	$	(18.93)	$	(1.42)
Income from discontinued operations	—		0.01
Net loss	$	(18.93)	$	(1.41)
Basic weighted-average shares outstanding	13.2		84.7
Diluted (loss) income per share (Note 5):
Loss from continuing operations	$	(18.93)	$	(1.42)
Income from discontinued operations	—		0.01
Net loss	$	(18.93)	$	(1.41)
Diluted weighted-average shares outstanding	13.2		84.7

See Notes to Condensed Consolidated Financial Statements.

2

MALLINCKRODT PLC

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE OPERATIONS

(unaudited, in millions)

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Net loss	$	(249.3)	$	(119.6)
Other comprehensive loss, net of tax:
Currency translation adjustments	1.8		0.2
Derivatives, net of tax	(4.3)		—
Benefit plans, net of tax	(0.1)		(0.2)
Total other comprehensive loss, net of tax	(2.6)		—
Comprehensive loss	$	(251.9)	$	(119.6)

See Notes to Condensed Consolidated Financial Statements.

3

MALLINCKRODT PLC

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited, in millions, except share data)

	Successor
	March 31, 2023		December 30, 2022
Assets
Current Assets:
Cash and cash equivalents	$	480.0	$	409.5
Accounts receivable, less allowance for doubtful accounts of $5.1 and $4.4	395.1		405.3
Inventories	895.4		947.6
Prepaid expenses and other current assets	120.7		273.4
Total current assets	1,891.2		2,035.8
Property, plant and equipment, net	454.4		457.6
Intangible assets, net	2,710.6		2,843.8
Deferred income taxes	509.4		475.5
Other assets	205.2		201.1
Total Assets	$	5,770.8	$	6,013.8
Liabilities and Shareholders' Equity
Current Liabilities:
Current maturities of long-term debt	$	44.1	$	44.1
Accounts payable	86.4		114.0
Accrued payroll and payroll-related costs	35.4		49.5
Accrued interest	76.8		29.0
Acthar Gel-Related Settlement	16.5		16.5
Opioid-Related Litigation Settlement liability	200.0		200.0
Accrued and other current liabilities	234.5		290.7
Total current liabilities	693.7		743.8
Long-term debt	3,041.6		3,027.7
Acthar Gel-Related Settlement	81.2		75.0
Opioid-Related Litigation Settlement liability	419.6		379.9
Pension and postretirement benefits	41.2		41.0
Environmental liabilities	35.6		35.8
Other income tax liabilities	18.5		18.2
Other liabilities	75.0		78.7
Total Liabilities	4,406.4		4,400.1
Shareholders' Equity:
Successor preferred shares, $0.01 par value, 500,000,000 authorized; none issued and outstanding	—		—
Successor ordinary A shares, €1.00 par value, 40,000 authorized; none issued and outstanding	—		—
Successor ordinary shares, $0.01 par value, 500,000,000 authorized; 13,170,932 issued and outstanding	0.1		0.1
Additional paid-in capital	2,193.6		2,191.0
Accumulated other comprehensive income	8.2		10.8
Retained deficit	(837.5)		(588.2)
Total Shareholders' Equity	1,364.4		1,613.7
Total Liabilities and Shareholders' Equity	$	5,770.8	$	6,013.8

See Notes to Condensed Consolidated Financial Statements.

4

MALLINCKRODT PLC

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited, in millions)

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Cash Flows From Operating Activities:
Net loss	$	(249.3)	$	(119.6)
Adjustments to reconcile net cash from operating activities:
Depreciation and amortization	145.1		177.2
Share-based compensation	2.6		1.2
Deferred income taxes	(33.4)		(0.9)
Reorganization items, net	—		2.9
Non-cash accretion expense	69.9		—
Other non-cash items	20.0		12.3
Changes in assets and liabilities:
Accounts receivable, net	9.6		73.8
Inventories	48.0		(27.0)
Accounts payable	(20.4)		0.4
Income taxes	138.9		(7.8)
Other	(31.1)		(63.3)
Net cash from operating activities	99.9		49.2
Cash Flows From Investing Activities:
Capital expenditures	(19.3)		(23.6)
Other	0.3		0.2
Net cash from investing activities	(19.0)		(23.4)
Cash Flows From Financing Activities:
Repayment of external debt	(11.0)		(4.6)
Net cash from financing activities	(11.0)		(4.6)
Effect of currency rate changes on cash	0.3		(0.7)
Net change in cash, cash equivalents and restricted cash	70.2		20.5
Cash, cash equivalents and restricted cash at beginning of period	466.7		1,405.2
Cash, cash equivalents and restricted cash at end of period	$	536.9	$	1,425.7
Cash and cash equivalents at end of period	$	480.0	$	1,365.3
Restricted cash included in prepaid expenses and other current assets at end of period	21.5		24.0
Restricted cash included in other long-term assets at end of period	35.4		36.4
Cash, cash equivalents and restricted cash at end of period	$	536.9	$	1,425.7

See Notes to Condensed Consolidated Financial Statements.

5

MALLINCKRODT PLC

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY

(unaudited, in millions)

	Ordinary Shares			Treasury Shares			Additional Paid-In Capital		Retained Deficit		Accumulated Other Comprehensive (Loss) Income		Total Shareholders' Equity
	Number	Par  Value		Number	Amount
Balance as of December 31, 2021 (Predecessor)	94.3	$	18.9	9.6	$	(1,616.1)	$	5,597.8	$	(3,678.9)	$	(8.3)	$	313.4
Net loss	—	—		—	—		—		(119.6)		—		(119.6)
Share-based compensation	—	—		—	—		1.2		—		—		1.2
Balance as of April 1, 2022 (Predecessor)	94.3	$	18.9	9.6	$	(1,616.1)	$	5,599.0	$	(3,798.5)	$	(8.3)	$	195.0
Balance as of December 30, 2022 (Successor)	13.2	$	0.1	—	$	—	$	2,191.0	$	(588.2)	$	10.8	$	1,613.7
Net loss	—	—		—	—		—		(249.3)		—		(249.3)
Other comprehensive loss	—	—		—	—		—		—		(2.6)		(2.6)
Share-based compensation	—	—		—	—		2.6		—		—		2.6
Balance as of March 31, 2023 (Successor)	13.2	$	0.1	—	$	—	$	2,193.6	$	(837.5)	$	8.2	$	1,364.4

See Notes to Condensed Consolidated Financial Statements.

6

MALLINCKRODT PLC

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited, dollars in millions, except share data, per share data and where indicated)

1. Background and Basis of Presentation

Background

Mallinckrodt plc is a global business of multiple wholly owned subsidiaries (collectively, "Mallinckrodt" or "the Company") that develop, manufacture, market and distribute specialty pharmaceutical products and therapies. Areas of focus include autoimmune and rare diseases in specialty areas like neurology, rheumatology, hepatology, nephrology, pulmonology, ophthalmology and oncology; immunotherapy and neonatal respiratory critical care therapies; analgesics; cultured skin substitutes and gastrointestinal products.

The Company operates in two reportable segments, which are further described below:

•Specialty Brands includes innovative specialty pharmaceutical brands; and

•Specialty Generics includes niche specialty generic drugs and active pharmaceutical ingredients ("API(s)").

The Company owns or has rights to use the trademarks and trade names that are used in conjunction with the operation of its business. One of the more important trademarks that the Company owns or has rights to use that appears in this Quarterly Report on Form 10-Q is "Mallinckrodt," which is a registered trademark or the subject of pending trademark applications in the United States ("U.S.") and other jurisdictions. Solely for convenience, the Company only uses the ™ or ® symbols the first time any trademark or trade name is mentioned in the following notes. Such references are not intended to indicate in any way that the Company will not assert, to the fullest extent permitted under applicable law, its rights to its trademarks and trade names. Each trademark or trade name of any other company appearing in the following notes is, to the Company's knowledge, owned by such other company.

Basis of Presentation

On October 12, 2020 ("Petition Date"), Mallinckrodt plc and substantially all of its U.S. subsidiaries, including certain subsidiaries of Mallinckrodt plc operating the Specialty Generics business ("Specialty Generics Subsidiaries") and the Specialty Brands business ("Specialty Brands Subsidiaries"), and certain of the Company's international subsidiaries (together with the Company, Specialty Generics Subsidiaries and Specialty Brands Subsidiaries, the "Debtors") voluntarily initiated proceedings ("Chapter 11 Cases") under chapter 11 of title 11 ("Chapter 11") of the United States Code ("Bankruptcy Code"). On March 2, 2022, the U.S. Bankruptcy Court for the District of Delaware ("Bankruptcy Court") entered an order confirming the fourth amended plan of reorganization (with technical modifications) ("Plan"). Subsequent to the filing of the Chapter 11 Cases, Chapter 11 proceedings commenced by a limited subset of the Debtors were recognized and given effect in Canada, and separately the High Court of Ireland made an order confirming a scheme of arrangement on April 27, 2022, which is based on and consistent in all respects with the Plan ("Scheme of Arrangement"). On June 8, 2022, the Bankruptcy Court entered an order approving a minor modification to the Plan. The Plan became effective on June 16, 2022 ("Effective Date"), and on such date the Company emerged from the Chapter 11 and the Scheme of Arrangement became effective concurrently.

Upon emergence from Chapter 11, the Company adopted fresh-start accounting in accordance with the provisions of Financial Accounting Standards Board Accounting Standards Codification Topic 852 - Reorganizations, and became a new entity for financial reporting purposes as of the Effective Date. References to "Successor" relate to the financial position as of June 16, 2022 and results of operations of the reorganized Company subsequent to June 16, 2022, while references to "Predecessor" relate to the financial position prior to June 16, 2022 and results of operations of the Company prior to, and including, June 16, 2022. All emergence-related transactions of the Predecessor were recorded as of June 16, 2022. Accordingly, the unaudited condensed consolidated financial statements for the Successor are not comparable to the unaudited condensed consolidated financial statements for the Predecessor.

Reorganization items, net for the Successor represents amounts incurred after the Effective Date that directly resulted from Chapter 11 and were entirely comprised of professional fees associated with the implementation of the Plan. Reorganization items, net for the Predecessor represents amounts incurred after the Petition Date but prior to emergence as a direct result of the Chapter 11 Cases and were comprised of bankruptcy-related professional fees and adjustments to reflect the carrying value of liabilities subject to compromise ("LSTC") at their estimated allowed claim amounts, as such adjustments were approved by the Bankruptcy Court. Cash paid for reorganization items, net for the three months ended March 31, 2023 (Successor) and April 1, 2022 (Successor) was $9.4 million and $79.1 million, respectively.

The Company also reassessed and updated its product line net sales presentation for its Specialty Generics segment. Beginning with the Quarterly Report on Form 10-Q for the quarterly period ended July 1, 2022 (Successor), the Company's unaudited condensed consolidated financial statements reflect the updated product line net sales structure for its Specialty Generics segment. Prior year amounts have been recast to conform to current presentation.

7

The unaudited condensed consolidated financial statements have been prepared in U.S. dollars and in accordance with accounting principles generally accepted in the U.S. ("GAAP"). The preparation of the unaudited condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities, disclosure of contingent assets and liabilities and the reported amounts of revenues and expenses. Actual results may differ from those estimates. The unaudited condensed consolidated financial statements include the accounts of the Company, its wholly owned subsidiaries and entities in which they own or control more than 50.0% of the voting shares, or have the ability to control through similar rights. In the opinion of management, all adjustments necessary for a fair statement of results of operations, cash flows and financial position have been made. All intercompany balances and transactions have been eliminated in consolidation and all normal recurring adjustments necessary for a fair presentation have been included in the results reported. The accompanying unaudited condensed consolidated financial statements have been prepared assuming the Company will continue as a going concern.

The results of entities disposed of are included in the unaudited condensed consolidated financial statements up to the date of disposal, and where appropriate, these operations have been reported in discontinued operations. Divestitures of product lines and businesses not meeting the criteria for discontinued operations have been reflected in operating loss.

The fiscal year end balance sheet data was derived from audited consolidated financial statements, but does not include all of the annual disclosures required by GAAP; accordingly these unaudited condensed consolidated financial statements should be read in conjunction with the Company's audited annual consolidated financial statements included in its Annual Report on Form 10-K for the fiscal year ended December 30, 2022 filed with the U.S. Securities and Exchange Commission ("SEC") on March 3, 2023 ("Annual Report on Form 10-K").

Fiscal Year

The Company reports its results based on a "52-53 week" year ending on the last Friday of December. Unless otherwise indicated, the three months ended March 31, 2023 (Successor) refers to the thirteen week period ended March 31, 2023 (Successor) and the three months ended April 1, 2022 (Predecessor) refers to the thirteen week period ended April 1, 2022 (Predecessor).

2. Revenue from Contracts with Customers

Product Sales Revenue

See Note 13 for presentation of the Company's net sales by product family.

Reserves for variable consideration

The following table reflects activity in the Company's sales reserve accounts:

	Rebates and Chargebacks (1)		Product Returns		Other Sales Deductions		Total
Balance as of December 31, 2021 (Predecessor)	$	241.8	$	21.5	$	9.5	$	272.8
Provisions	370.8		2.4		9.7		382.9
Payments or credits	(412.0)		(4.3)		(10.0)		(426.3)
Balance as of April 1, 2022 (Predecessor)	$	200.6	$	19.6	$	9.2	$	229.4
Balance as of December 30, 2022 (Successor)	$	265.3	$	16.0	$	12.7	$	294.0
Provisions	355.6		3.2		9.5		368.3
Payments or credits	(404.3)		(4.0)		(15.0)		(423.3)
Balance as of March 31, 2023 (Successor)	$	216.6	$	15.2	$	7.2	$	239.0

(1)Includes $58.9 million and $89.3 million of accrued Medicaid and $44.6 million and $55.3 million of accrued rebates as of March 31, 2023 (Successor) and December 30, 2022 (Successor), respectively, included within accrued and other current liabilities in the unaudited condensed consolidated balance sheets.

Product sales transferred to customers at a point in time and over time were as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Product sales transferred at a point in time	80.2	%	79.5	%
Product sales transferred over time	19.8		20.5

8

Transaction price allocated to the remaining performance obligations

The following table includes estimated revenue from contracts extending greater than one year for certain of the Company's hospital products that are expected to be recognized in the future related to performance obligations that were unsatisfied or partially unsatisfied as of March 31, 2023 (Successor):

Remainder of Fiscal 2023	$	56.6
Fiscal 2024	37.7
Fiscal 2025	13.2
Thereafter	0.2

Product Royalty Revenues

The Company licenses certain rights to Amitiza® (lubiprostone) ("Amitiza") to third parties in exchange for royalties on net sales of the product. The Company receives a double-digit royalty based on a percentage of the gross profits of the licensed products sold during the term of the agreements. The Company recognizes such royalty revenue as the related sales occur. The associated royalty revenue recognized was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Royalty revenue	$	3.4	$	20.0

3. Restructuring and Related Charges

During fiscal 2021 and 2018, the Company launched restructuring programs designed to improve its cost structure, neither of which has a specified time period. Charges of $50.0 million to $100.0 million were provided for under the 2021 program and $100.0 million to $125.0 million were provided for under the 2018 program. The 2021 program will commence upon substantial completion of the 2018 program, and has not commenced as of March 31, 2023 (Successor).

Net restructuring and related charges by segment were as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Specialty Generics	$	—	$	3.5
Corporate	1.9		3.3
Restructuring and related charges, net	1.9		6.8
Less: accelerated depreciation	(0.7)		—
Restructuring charges, net	$	1.2	$	6.8

Net restructuring and related charges by program were comprised of the following:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
2018 Program	$	1.9	$	6.8
Less: non-cash charges, including accelerated depreciation	(0.8)		(2.1)
Total charges expected to be settled in cash	$	1.1	$	4.7

9

The following table summarizes cash activity for restructuring reserves for the 2018 Program, which primarily related to employee severance and benefits:

	2018 Program
Balance as of December 30, 2022 (Successor)	$	4.6
Charges from continuing operations	1.2
Changes in estimate from continuing operations	(0.1)
Cash payments	(4.2)
Balance as of March 31, 2023 (Successor)	$	1.5

As of March 31, 2023 (Successor), net restructuring and related charges incurred cumulative to date for the 2018 Program were as follows:

	Successor		Predecessor
Specialty Brands	$	—	$	3.1
Specialty Generics	0.8		18.5
Corporate	13.2		84.0
	$	14.0	$	105.6

All of the restructuring reserves were included in accrued and other current liabilities on the Company's unaudited condensed consolidated balance sheets. Amounts paid in the future may differ from the amount currently recorded.

4. Income Taxes

The Company's income tax expense (benefit) was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Current tax expense (benefit)	$	2.6	$	(5.0)
Deferred tax benefit	(33.4)		(0.9)
Income tax benefit	$	(30.8)	$	(5.9)

The Company recognized an income tax benefit of $30.8 million on a loss from continuing operations before income taxes of $280.1 million for the three months ended March 31, 2023 (Successor). This resulted in an effective tax rate of 11.0%. The income tax provision consisted of a deferred income tax benefit predominately related to intangible asset amortization, accretion expense associated with our settlement obligations and debt, inventory step-up amortization expense and other operating activity, partially offset by current income tax expense related to a decrease in prepaid income taxes.

The income tax benefit of $30.8 million for the three months ended March 31, 2023 (Successor) consisted of $27.4 million attributed to pretax earnings in various jurisdictions, $2.1 million attributed to separation costs, reorganization items, net and restructuring charges, and $1.3 million attributed to the Coronavirus Aid, Relief, and Economic Security ("CARES") Act.

The Company recognized an income tax benefit of $5.9 million on a loss from continuing operations before income taxes of $126.1 million for the three months ended April 1, 2022 (Predecessor). This resulted in an effective tax rate of 4.7%. The current and deferred income tax benefits were predominantly related to an increase to prepaid taxes and intangible asset amortization partially offset by utilization of loss carryforwards in non-valuation allowance jurisdictions.

The income tax benefit of $5.9 million for the three months ended April 1, 2022 (Predecessor) consisted of $4.8 million attributed to pretax earnings in various jurisdictions and $1.9 million attributed to separation costs, reorganization items, net and restructuring charges, partially offset by $0.8 million attributed to the CARES Act.

During the three months ended March 31, 2023 (Successor), net cash refunds for income taxes were $136.3 million, including refunds of $139.3 million received as a result of provisions in the CARES Act and net payments of $3.0 million related to operational activity. During the three months ended April 1, 2022 (Predecessor), net cash payments for income taxes were $2.7 million.

10

The Company's unrecognized tax benefits, excluding interest, totaled $24.8 million as of both March 31, 2023 (Successor) and December 30, 2022 (Successor). If favorably settled, these balances would benefit the effective tax rate. The total amount of accrued interest and penalties related to these obligations was $3.1 million and $2.8 million as of March 31, 2023 (Successor) and December 30, 2022 (Successor), respectively.

Within the next twelve months, the unrecognized tax benefits and the related interest and penalties are not expected to significantly change.

Certain of the Company's subsidiaries continue to be subject to examination by taxing authorities. The earliest open years subject to examination for both the U.S federal and state jurisdictions and various foreign jurisdictions, including Ireland, Japan, Luxembourg, Switzerland and the United Kingdom is 2013.

5. Loss per Share

Loss per share is computed by dividing net loss by the number of weighted-average shares outstanding during the period. Dilutive securities, including participating securities, have not been included in the computation of loss per share as the Company reported a net loss from continuing operations during all periods presented below and therefore, the impact would be anti-dilutive.

The weighted-average number of shares outstanding used in the computations of both basic and diluted loss per share were as follows (in millions):

	Successor	Predecessor
	Three Months Ended March 31, 2023	Three Months Ended April 1, 2022
Basic and diluted	13.2	84.7

The computation of diluted weighted-average shares outstanding for the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor) excluded approximately zero and 5.1 million shares of equity awards, respectively, because the effect would have been anti-dilutive.

6. Inventories

Inventories were comprised of the following at the end of each period: 

	Successor
	March 31, 2023		December 30, 2022
Raw materials and supplies	$	89.9	$	80.2
Work in process	523.3		552.1
Finished goods	282.2		315.3
	$	895.4	$	947.6

7. Property, Plant and Equipment

The gross carrying amount and accumulated depreciation of property, plant and equipment were comprised of the following at the end of each period:

	Successor
	March 31, 2023		December 30, 2022
Property, plant and equipment, gross	$	492.5	$	485.0
Less: accumulated depreciation	(38.1)		(27.4)
Property, plant and equipment, net	$	454.4	$	457.6

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Depreciation expense was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Depreciation expense	$	11.9	$	22.1

8. Intangible Assets

The gross carrying amount and accumulated amortization of intangible assets were comprised of the following at the end of each period:

	Successor
	March 31, 2023				December 30, 2022
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Amortizable:
Completed technology	$	3,041.2	$	451.9	$	3,041.2	$	318.7
Non-Amortizable:
In-process research and development	121.3				121.3

Intangible asset amortization expense was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Amortization expense	$	133.2	$	155.1

The estimated aggregate amortization expense on intangible assets owned by the Company is expected to be as follows:

	Successor
Remainder of Fiscal 2023	$	376.0
Fiscal 2024	446.1
Fiscal 2025	385.1
Fiscal 2026	337.5
Fiscal 2027	284.4

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9. Debt

Debt was comprised of the following at the end of each period:

	Successor
	March 31, 2023						December 30, 2022
	Principal		Carrying Value		Unamortized Discount and Debt Issuance Costs		Principal		Carrying Value		Unamortized Discount and Debt Issuance Costs
Current maturities of long-term debt:
2017 Replacement Term loan due September 2027	$	34.8	$	34.8	$	—	$	34.8	$	34.8	$	—
2018 Replacement Term loan due September 2027	9.3		9.3		—		9.3		9.3		—
Total current debt	44.1		44.1		—		44.1		44.1		—
Long-term debt:
10.00% first lien senior secured notes due April 2025	495.0		478.0		—		495.0		475.9		—
10.00% second lien senior secured notes due April 2025	321.9		249.8		—		321.9		242.2		—
2017 Replacement Term loan due September 2027	1,330.6		1,186.6		—		1,339.3		1,187.3		—
2018 Replacement Term loan due September 2027	353.2		317.3		—		355.5		317.6		—
11.50% first lien senior secured notes due December 2028	650.0		650.0		19.9		650.0		650.0		20.8
10.00% second lien senior secured notes due June 2029	328.3		179.8		—		328.3		175.5		—
Total long-term debt	3,479.0		3,061.5		19.9		3,490.0		3,048.5		20.8
Total debt	$	3,523.1	$	3,105.6	$	19.9	$	3,534.1	$	3,092.6	$	20.8

Applicable interest rate

As of March 31, 2023 (Successor), the applicable interest rate and outstanding principal on the Company's debt instruments were as follows:

	Applicable Interest Rate		Outstanding Principal
Fixed-rate instruments	10.54	%	$	1,795.2
2017 Replacement Term Loan due September 2027 (1)	9.94		1,365.4
2018 Replacement Term Loan due September 2027 (1)	10.19		362.5

(1)Includes the impact of the interest rate cap agreement, which is discussed further in Note 12.

10. Guarantees

In disposing of assets or businesses, the Company has from time to time provided representations, warranties and indemnities to cover various risks and liabilities, including unknown damage to assets, environmental risks involved in the sale of real estate, liability to investigate and remediate environmental contamination at waste disposal sites and manufacturing facilities, and unidentified tax liabilities related to periods prior to disposition. The Company assesses the probability of potential liabilities related to such representations, warranties and indemnities and adjusts potential liabilities as a result of changes in facts and circumstances. The Company believes, given the information currently available, that the ultimate resolutions will not have a material adverse effect on its financial condition, results of operations and cash flows.

In connection with the sale of the Specialty Chemical business (formerly known as Mallinckrodt Baker) in fiscal 2010, the Company agreed to indemnify the purchaser with respect to various matters, including certain environmental, health, safety, tax and other matters. The indemnification obligations relating to certain environmental, health and safety matters have a term of 17 years from the sale, while some of the other indemnification obligations have an indefinite term. The liability relating to all of these indemnification obligations was governed by a contract that was rejected as part of Chapter 11 and is no longer a liability of the Successor Company. The Company was required to pay $30.0 million into an escrow account as collateral to the purchaser. The contract governing the escrow account was assumed in the Chapter 11 proceedings. As of March 31, 2023 (Successor) and December 30, 2022 (Successor), $19.5 million and $19.3 million remained in restricted cash, included in other long-term assets on the unaudited condensed consolidated balance sheets, respectively. As of March 31, 2023 (Successor), the Company does not expect to make future payments related to these indemnification obligations.

As of March 31, 2023 (Successor), the Company had various other letters of credit, guarantees and surety bonds totaling $29.9 million and restricted cash of $37.4 million held in segregated accounts primarily to collateralize surety bonds for the Company's environmental liabilities.

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11. Commitments and Contingencies

The Company is subject to various legal proceedings and claims, including government investigations, environmental matters, product liability matters, patent infringement claims, antitrust matters, securities class action lawsuits, personal injury claims, employment disputes, contractual and other commercial disputes, and all other legal proceedings, all in the ordinary course of business, including those described below. Although it is not feasible to predict the outcomes of these matters, the Company believes, unless otherwise indicated below, given the information currently available, that their ultimate resolution will not have a material adverse effect on its financial condition, results of operations and cash flows.

Governmental Proceedings

Acthar Gel-Related Matters

SEC Subpoena. In August 2019, the Company received a subpoena from the SEC for documents related to the Company's disclosure of its dispute with the U.S. Department of Health and Human Services ("HHS") and Centers for Medicare and Medicaid Services (together with HHS, the "Agency") concerning the base date average manufacturer price for Acthar Gel under the Medicaid Drug Rebate Program, which was also the subject of litigation that the Company filed against the Agency. The SEC issued subsequent subpoenas on January 7, 2022 and September 28, 2022, requesting additional documents from the Company.

In connection with the investigation, on January 13, 2023, the SEC staff issued Wells Notices to the Company and individuals, including certain of its current and former executive officers, who were employed during 2019 (collectively, the “Individuals”). The notices indicate that the SEC staff has made a preliminary determination to recommend that the SEC file an enforcement action against the Company that would allege violations of the federal securities laws, and against the Individuals that would allege violations of the federal securities laws and/or aiding and abetting violations of the federal securities laws. The recommendation as to the Company may involve an injunction, a cease-and-desist order and/or other appropriate relief.

The actions recommended by the SEC staff would allege, among other things, that (a) the Company improperly omitted to disclose the dispute with the Agency prior to the litigation filed by the Company in federal court on May 21, 2019, and (b) the Company’s disclosure of the civil investigative demand received from the U.S. Attorney’s Office for the District of Massachusetts in January 2019 (“Boston CID”) should have stated that the Boston CID related to the Company’s dispute with the Agency.

A Wells Notice is neither a formal charge of wrongdoing nor a final determination that the recipient has violated any law. Under the SEC procedures, a recipient of a Wells Notice has an opportunity to respond and make a submission to the SEC staff setting forth the recipient’s interests and position in regard to the subject matter of the investigation.

The Company believes that it has complied with all applicable laws and regulations, and it has provided a submission explaining the Company’s position and its belief that no enforcement action is warranted or appropriate. The Company understands that the Individuals have provided similar submissions to the SEC staff. The outcome of this matter is uncertain, and as a result, the Company is unable to estimate the potential exposure associated with this matter.

Environmental Remediation and Litigation Proceedings

The Company is involved in various stages of investigation and cleanup related to environmental remediation matters at a number of sites, including those described below. The ultimate cost of site cleanup and timing of future cash outlays is difficult to predict, given the uncertainties regarding the extent of the required cleanup, the interpretation of applicable laws and regulations and alternative cleanup methods. The Company concluded that, as of March 31, 2023 (Successor), it was probable that it would incur remediation costs in the range of $18.1 million to $48.1 million. The Company also concluded that, as of March 31, 2023 (Successor), the best estimate within this range was $36.5 million, of which $0.9 million was included in accrued and other current liabilities and the remainder was included in environmental liabilities on the unaudited condensed consolidated balance sheet as of March 31, 2023 (Successor). While it is not possible at this time to determine with certainty the ultimate outcome of these matters, the Company believes, given the information currently available, that the final resolution of all known claims, after taking into account amounts already accrued, will not have a material adverse effect on its financial condition, results of operations and cash flows.

Lower Passaic River, New Jersey. The Company and approximately 70 other companies ("Cooperating Parties Group" or "CPG") are parties to a May 2007 Administrative Order on Consent with the Environmental Protection Agency ("EPA") to perform a remedial investigation and feasibility study ("RI/FS") of the 17-mile stretch known as the Lower Passaic River Study Area (“River”). The Company's potential liability stems from former operations at Lodi and Belleville, New Jersey (the “Lodi facility” and the “Belleville facility” respectively). In April 2014, the EPA issued a revised Focused Feasibility Study ("FFS"), with remedial alternatives to address cleanup of the lower 8-mile stretch of the River. The EPA estimated the cost for the remediation alternatives ranged from $365.0 million to $3.2 billion and the EPA's preferred approach had an estimated cost of $1.7 billion. In April 2015, the CPG

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presented a draft of the RI/FS of the River to the EPA that included alternative remedial actions for the entire 17-mile stretch of the River. In March 2016, the EPA issued the Record of Decision ("ROD(s)") for the lower 8 miles of the River with a slight modification on its preferred approach and a revised estimated cost of $1.38 billion. In October 2016, the EPA announced that Occidental Chemicals Corporation had entered into an agreement to develop the remedial design.

In August 2018, the EPA finalized a buyout offer of $280,600 with the Company, limited to its former Lodi facility, for the lower 8 miles of the River. In September 2021, the EPA issued the ROD for the upper 9 miles of the River selecting source control as the remedy for the upper 9 miles with an estimated cost of $441.0 million. In September 2022, the Company entered into a conditional $0.3 million Early Cash-Out Consent Decree (“CD”) with the EPA as a buyout for its portion of the upper part of the River related to its former Lodi facility; finalization of the CD is subject to the EPA approval following the public comment period that ended March 2023.

The portion of the liability related to the Belleville facility was discharged against the Company as a result of the Plan. Any reserves associated with this contingency were included in LSTC as of the Effective Date, and any related liabilities were discharged under the Bankruptcy Code.

As of March 31, 2023, the Company estimated that its remaining liability related to the River was $21.0 million, which was included within environmental liabilities on the unaudited condensed consolidated balance sheet as of March 31, 2023 (Successor). Despite the issuance of the revised FFS and the RODs for both the lower and upper River by the EPA, the RI/FS by the CPG, and the cash out settlement by the EPA, there are many uncertainties associated with the final agreed-upon remediation, potential future liabilities and the Company's allocable share of the remediation. Given those uncertainties, the amounts accrued may not be indicative of the amounts for which the Company may be ultimately responsible and will be refined as the remediation progresses.

Bankruptcy Litigation and Appeals

First Lien Noteholder Matters. The Plan proposed to reinstate the issuers' existing 10.00% First Lien Senior Secured Notes due 2025 ("Existing First Lien Notes") in an aggregate principal amount of $495.0 million and the note documents relating thereto. Certain holders of the Existing First Lien Notes and the trustee in respect thereof (collectively, the "Noteholder Parties"), objected to the proposed reinstatement, arguing, among other things, that the Company was required to pay a significant make-whole premium as a condition to reinstatement of the Existing First Lien Notes. In the course of confirming the Plan, the Bankruptcy Court overruled these objections.

On March 30, 2022, the Noteholder Parties appealed the confirmation order's approval of the reinstatement of the Existing First Lien Notes to the United States District Court for the District of Delaware. The Company and the Existing First Lien Notes Trustee reached an agreement to hold the trustee's appeal in abeyance, to be determined by the result of the holders' appeals, subject to certain conditions, which was approved by the District Court. Briefing on the merits of the Noteholder Parties' appeals was completed on July 1, 2022. On the same date, the Company moved to dismiss the Noteholder Parties' appeals as equitably moot. Briefing on the motion was completed on August 5, 2022 and supplemental declarations have been filed in the appeal. Oral argument was held on the Noteholder Parties' appeals on May 5, 2023, and the court took the matter under advisement.

At this stage, the Company is not able to reasonably estimate the expected amount or range of cost or any loss associated with these appeals. The Company will continue to vigorously defend the Plan.

Sanofi. On October 12, 2021, in the Company's bankruptcy, sanofi-aventis U.S. LLC ("Sanofi") filed a motion asking the Bankruptcy Court for an order determining that, under the Bankruptcy Code, the Company could not discharge alleged royalty obligations owed to Sanofi under an asset purchase agreement through which the Company acquired certain intellectual property from Sanofi's predecessor ("Sanofi Motion"). On November 8, 2021, the Bankruptcy Court denied the Sanofi Motion and ordered that any royalty obligations allegedly owed to Sanofi constitute prepetition unsecured claims that may be discharged under the Bankruptcy Code. On November 19, 2021, Sanofi appealed the Bankruptcy Court's ruling of the Sanofi Motion to the District Court. Briefing was completed on March 10, 2022 and the District Court affirmed on December 20, 2022, for which Sanofi filed a notice of appeal on January 17, 2023. Sanofi had also appealed the Bankruptcy Court's confirmation order, but pursuant to the terms of a settlement between Sanofi and the General Unsecured Claims Trustee appointed pursuant to the Plan, it is expected that Sanofi will dismiss its appeal of the confirmation order with prejudice in the near term.

Banks et al. v. Cotter Corporation et al. v. Mallinckrodt LLC, et al. On January 29, 2023, the named plaintiffs in Banks et al. v. Cotter Corporation et al. v. Mallinckrodt LLC, et al. No. 20-CV-1227 (E.D. Mo.) filed a motion to amend their class-action petition to add Mallinckrodt LLC as a defendant. Mallinckrodt LLC filed a motion in the Bankruptcy Court to enjoin this petition on the grounds that these alleged claims were discharged pursuant to the Plan and confirmation order. On April 11, 2023, the court held oral argument on the motion to enjoin. Both motions remain pending until the Bankruptcy Court adjudicates the motion to enjoin. Under the confirmation order, any liability Mallinckrodt LLC may have in connection with the Banks litigation was discharged upon emergence from Chapter 11, with the limited exception of liability that is indemnified by the U.S. government.

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Other Matters

The Company's legal proceedings and claims are further described within the notes to the financial statements included within the Company's Annual Report on Form 10-K.

12. Financial Instruments and Fair Value Measurements

Fair value is defined as the exit price that would be received from the sale of an asset or paid to transfer a liability, using assumptions that market participants would use in pricing an asset or liability. The fair value guidance establishes a three-level fair value hierarchy, which maximizes the use of observable inputs and minimizes the use of unobservable inputs used in measuring fair value. The levels within the hierarchy are as follows:

Level 1— observable inputs such as quoted prices in active markets for identical assets or liabilities;

Level 2— significant other observable inputs that are observable either directly or indirectly; and

Level 3— significant unobservable inputs in which there is little or no market data, which requires the Company to develop its own assumptions.

The following tables provide a summary of the significant assets and liabilities that are measured at fair value on a recurring basis at the end of each period:

	March 31, 2023 (Successor)		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Debt and equity securities held in rabbi trusts	$	38.2	$	26.1	$	12.1	$	—
Equity securities	10.3		10.3		—		—
Interest rate cap	14.9		—		14.9		—
	$	63.4	$	36.4	$	27.0	$	—
Liabilities:
Deferred compensation liabilities	$	19.0	$	—	$	19.0	$	—
Contingent consideration liabilities	7.7		—		—		7.7
	$	26.7	$	—	$	19.0	$	7.7

	December 30, 2022 (Predecessor)		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Debt and equity securities held in rabbi trusts	$	36.6	$	24.8	$	11.8	$	—
Equity securities	25.5		25.5		—		—
	$	62.1	$	50.3	$	11.8	$	—
Liabilities:
Deferred compensation liabilities	$	26.0	$	—	$	26.0	$	—
Contingent consideration liabilities	7.3		—		—		7.3
	$	33.3	$	—	$	26.0	$	7.3

Debt and equity securities held in rabbi trusts. Debt securities held in rabbi trusts primarily consist of U.S. government and agency securities and corporate bonds. When quoted prices are available in an active market, the investments are classified as level 1. When quoted market prices for a security are not available in an active market, they are classified as level 2. Equity securities held in rabbi trusts primarily consist of U.S. common stocks, which are valued using quoted market prices reported on nationally recognized securities exchanges.

Equity securities. Equity securities consist of shares in Silence Therapeutics plc and Panbela Therapeutics, Inc. for which quoted prices are available in an active market; therefore, these investments are classified as level 1 and are valued based on quoted market prices reported on internationally recognized securities exchanges.

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Interest rate cap. The Company is exposed to interest rate risk on its variable-rate debt. During the three months ended March 31, 2023, the Company entered into an interest rate cap agreement, which serves to reduce the volatility on future interest expense cash outflows. The interest rate cap agreement has a total notional value of $860.0 million with an upfront premium of $20.0 million and provides the Company with interest rate protection (i) for the period March 16, 2023 through July 19, 2023 to the extent that the one-month London Interbank Offered Rate ("LIBOR") exceeds 4.65%, and (ii) for the period July 20, 2023 through March 26, 2026 to the extent that the one-month Secured Overnight Financing Rate ("SOFR") exceeds 3.84%.

The interest rate cap agreement qualifies as a cash flow hedge. The premium paid is recognized in income on a rational basis, and changes in the fair value of the interest rate cap are recorded within accumulated other comprehensive income ("AOCI") and are subsequently reclassed into interest expense in the period when the hedged interest affects earnings. The fair value of the interest rate cap is included in other assets on the Company’s unaudited condensed consolidated balance sheet as of March 31, 2023 (Successor). The Company elected to use the income approach to value the interest rate cap derivative using observable Level 2 market expectations at the measurement date and standard valuation techniques to convert future amounts to a single present amount (discounted) reflecting current market expectations about those future amounts. Level 2 inputs for derivative valuations are limited to quoted prices for similar assets or liabilities in active markets (specifically futures contracts) and inputs other than quoted prices that are observable such as LIBOR or SOFR rate curves, futures and volatilities. Mid-market pricing is used as a practical expedient in the fair value measurements. The Company recognized an unrealized loss of $5.0 million within AOCI during the three months ended March 31, 2023 (Successor), with $0.3 million being reclassified into earnings as a component of interest expense, net. It is expected that over the next 12 months, $6.7 million of the estimated losses in AOCI will be recognized into interest expense, net. The cash payment of the $20.0 million premium and other corresponding activity related to the interest rate cap were reflected as cash flows from operating activities in the unaudited condensed consolidated statement of cash flows for the three months ended March 31, 2023 (Successor).

Deferred compensation liabilities. The Company maintains a non-qualified deferred compensation plan in the U.S., which permits eligible employees of the Company to defer a portion of their compensation. A recordkeeping account is set up for each participant and the participant chooses from a variety of funds for the deemed investment of their accounts. The recordkeeping accounts generally correspond to the funds offered in the Company's U.S. tax-qualified defined contribution retirement plan and the account balance fluctuates with the investment returns on those funds.

Contingent consideration liabilities. In accordance with the Plan and the Scheme of Arrangement, the Company will provide consideration for a contingent value right ("CVR") associated with Terlivaz® primarily in the form of the achievement of a cumulative net sales milestone. The Company assesses the likelihood and timing of making such payments at each balance sheet date. The fair value of the contingent payment was measured based on the net present value of a probability-weighted assessment. The Company determined the fair value of the Terlivaz CVR as of March 31, 2023 (Successor) and December 30, 2022 (Successor) to be $7.7 million and $7.3 million, respectively.

Financial Instruments Not Measured at Fair Value

    The following methods and assumptions were used by the Company in estimating fair values for financial instruments not measured at fair value as of March 31, 2023 (Successor) and December 30, 2022 (Successor):

•The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and the majority of other current assets and liabilities approximate fair value because of their short-term nature. The Company classifies cash on hand and deposits in banks, including commercial paper, money market accounts and other investments it may hold from time to time, with an original maturity of three months or less, as cash and cash equivalents (level 1). The fair value of restricted cash was equivalent to its carrying value of $56.9 million and $57.2 million as of March 31, 2023 (Successor) and December 30, 2022 (Successor) (level 1), respectively.

•The Company's life insurance contracts are carried at cash surrender value, which is based on the present value of future cash flows under the terms of the contracts (level 3). Significant assumptions used in determining the cash surrender value include the amount and timing of future cash flows, interest rates and mortality charges. The fair value of these contracts approximates the carrying value of $46.4 million and $46.7 million as of March 31, 2023 (Successor) and December 30, 2022 (Successor), respectively. These contracts are included in other assets on the unaudited condensed consolidated balance sheets.

•The Company's 10.00% and 11.50% first and second lien senior secured notes are classified as level 1, as quoted prices are available in an active market for these notes. Since quoted market prices for the Company's term loans are not available in an active market, they are classified as level 2 for purposes of developing an estimate of fair value.

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The following table presents the carrying values and estimated fair values of the Company's debt as of the end of each period:

	Successor
	March 31, 2023				December 30, 2022
	Carrying Value		Fair Value		Carrying Value		Fair Value
Level 1:
10.00% first lien senior secured notes due April 2025	$	478.0	$	415.6	$	475.9	$	425.9
10.00% second lien senior secured notes due April 2025	249.8		222.1		242.2		216.8
11.50% first lien senior secured notes due December 2028	650.0		536.6		650.0		552.6
10.00% second lien senior secured notes due June 2029	179.8		192.0		175.5		176.7
Level 2:
2017 Replacement Term loan due September 2027	1,221.4		1,005.3		1,222.1		1,037.8
2018 Replacement Term loan due September 2027	326.6		262.6		326.9		274.8
Total Debt	$	3,105.6	$	2,634.2	$	3,092.6	$	2,684.6

Concentration of Credit and Other Risks

Financial instruments that potentially subject the Company to concentrations of credit risk primarily consist of accounts receivable. The Company generally does not require collateral from customers. A portion of the Company's accounts receivable outside the U.S. includes sales to government-owned or supported healthcare systems in several countries, which are subject to payment delays. Payment is dependent upon the financial stability and creditworthiness of those countries' national economies.

The following table shows net sales attributable to distributors that accounted for 10.0% or more of the Company's total net sales:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
FFF Enterprises, Inc.	18.8	%	*
CuraScript, Inc.	*		26.0	%

* Net sales to this distributor was less than 10.0% of the Company's total net sales for the respective periods presented above.

The following table shows accounts receivable attributable to distributors that accounted for 10.0% or more of the Company's gross accounts receivable at the end of each period:

	Successor
	March 31, 2023		December 30, 2022
AmerisourceBergen Corporation	26.1	%	23.3	%
McKesson Corporation	19.0		17.3
FFF Enterprises, Inc.	*		16.2

*Accounts receivable attributable to this distributor was less than 10.0% of total gross accounts receivable at the end of the respective period presented above.

The following table shows net sales attributable to products that accounted for 10.0% or more of the Company's total net sales:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
INOmax	19.5	%	20.2	%
Acthar Gel	19.3		26.0
Therakos	13.8		12.2
APAP	10.9		*

*Net sales attributable to this product was less than 10.0% of total net sales for the respective period presented above.

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13. Segment Data

The Company operates in two reportable segments, which are further described below:

•Specialty Brands includes innovative specialty pharmaceutical brands; and

•Specialty Generics includes niche specialty generic drugs and APIs.

Management measures and evaluates the Company's operating segments based on segment net sales and operating income. Management excludes corporate expenses from segment operating income. In addition, certain amounts that management considers to be non-recurring or non-operational are excluded from segment operating income because management and the chief operating decision maker evaluate the operating results of the segments excluding such items. These items may include, but are not limited to, depreciation and amortization, share-based compensation, net restructuring charges, non-restructuring impairment charges and separation costs. Although these amounts are excluded from segment operating income, as applicable, they are included in reported consolidated operating loss and are reflected in the reconciliations presented below.

Selected information by reportable segment was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Net sales:
Specialty Brands	$	252.0	$	339.4
Specialty Generics	172.6		151.5
Net sales	$	424.6	$	490.9
Operating income (loss):
Specialty Brands	$	32.4	$	164.8
Specialty Generics	32.8		34.4
Segment operating income	65.2		199.2
Unallocated amounts:
Corporate and unallocated expenses (1)	(14.0)		(32.8)
Depreciation and amortization	(145.1)		(177.2)
Share-based compensation	(2.6)		(1.2)
Restructuring charges, net	(1.2)		(6.8)
Separation costs (2)	(4.9)		(2.0)
Operating loss	$	(102.6)	$	(20.8)

(1)Includes administration expenses and certain compensation, legal, environmental and other costs not charged to the Company's reportable segments.

(2)Represents costs included in selling, general and administrative expenses, primarily related to professional fees and costs incurred as the Company explores potential sales of non-core assets to enable further deleveraging post-emergence.

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Net sales by product family within the Company's reportable segments were as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Acthar Gel	$	82.0	$	127.7
INOmax	82.7		99.0
Therakos	58.7		59.9
Amitiza (1)	24.5		47.7
Terlivaz	2.2		—
Other	1.9		5.1
Specialty Brands	252.0		339.4
Opioids	62.2		50.0
ADHD	22.4		10.8
Addiction treatment	15.6		15.9
Other	1.8		2.8
Generics	102.0		79.5
Controlled substances	18.5		20.4
APAP	46.4		46.3
Other	5.7		5.3
API	70.6		72.0
Specialty Generics	172.6		151.5
Net sales	$	424.6	$	490.9

(1)Amitiza consists of both product net sales and royalties. Refer to Note 2 for further details on Amitiza's revenues.

14. Subsequent Events

Commitments and Contingencies

Certain litigation matters occurred on, or prior to, March 31, 2023 (Successor), but had subsequent updates through the issuance of this report. See further discussion in Note 11.

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

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our unaudited condensed consolidated financial statements and the accompanying notes included in this Quarterly Report on Form 10-Q. This Quarterly Report on Form 10-Q includes forward-looking statements that are based on management's beliefs and assumptions and on information currently available to management. See "Forward-Looking Statements" at the end of this Item 2 for important additional information and related considerations.

Overview

We are a global business consisting of multiple wholly owned subsidiaries that develop, manufacture, market and distribute specialty pharmaceutical products and therapies. Areas of focus include autoimmune and rare diseases in specialty areas like neurology, rheumatology, hepatology, nephrology, pulmonology, ophthalmology and oncology; immunotherapy and neonatal respiratory critical care therapies; analgesics; cultured skin substitutes and gastrointestinal products.

We operate our business in two reportable segments, which are further described below:

•Specialty Brands includes innovative specialty pharmaceutical brands; and

•Specialty Generics includes niche specialty generic drugs and active pharmaceutical ingredients ("API(s)").

For further information on our business and products, refer to our Annual Report on Form 10-K for the fiscal year ended December 30, 2022 ("Annual Report on Form 10-K"), filed with the United States ("U.S.") Securities and Exchange Commission ("SEC") on March 3, 2023.

Emergence from bankruptcy

On October 12, 2020 ("Petition Date"), Mallinckrodt plc and substantially all of its U.S. subsidiaries, including certain subsidiaries of Mallinckrodt plc operating the Specialty Generics business and the Specialty Brands business and certain of the Company's international subsidiaries (collectively the "Debtors") voluntarily initiated proceedings ("Chapter 11 Cases") under chapter 11 of title 11 ("Chapter 11") of the United States Code. The fourth amended plan of reorganization (with technical modifications) ("Plan") became effective on June 16, 2022 ("Effective Date"), and on such date the Company emerged from the Chapter 11.

Upon emergence from Chapter 11, the Company adopted fresh-start accounting in accordance with the provisions of Financial Accounting Standards Board Accounting Standards Codification Topic 852 - Reorganizations, and became a new entity for financial reporting purposes as of the Effective Date. References to "Successor" relate to the financial position as of June 16, 2022 and results of operations of the reorganized Company subsequent to June 16, 2022, while references to "Predecessor" relate to the financial position prior to June 16, 2022 and results of operations of the Company prior to, and including, June 16, 2022. All emergence-related transactions of the Predecessor were recorded as of June 16, 2022. Accordingly, the unaudited condensed consolidated financial statements for the Successor are not comparable to the unaudited condensed consolidated financial statements for the Predecessor.

Significant Events

Reorganization items, net

During the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor), we incurred $5.6 million and $43.4 million of reorganization items, net, respectively. The Successor expenses represent amounts incurred after the Effective Date that directly resulted from Chapter 11 and were entirely comprised of professional fees associated with the implementation of the Plan. The Predecessor expenses represent amounts incurred after the Petition Date as a direct result of the Chapter 11 Cases and are comprised of professional fees and adjustments to reflect the carrying value of liabilities subject to compromise ("LSTC") at their estimated allowed claim amounts.

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Business Factors Influencing the Results of Operations

We cannot adequately benchmark certain operating results of the three months ended March 31, 2023 (Successor) against the three months ended April 1, 2022 (Predecessor) as the comparison of Successor and Predecessor periods would not be in accordance with GAAP. We do not believe that reviewing the results of the Successor period in isolation would be useful in identifying trends in or reaching conclusions regarding our overall operating performance. Management believes that our key performance metrics such as net sales and segment results of operations for the three months ended March 31, 2023 (Successor) provide a meaningful comparison and are useful in identifying current business trends when compared to the three months ended April 1, 2022 (Predecessor). Accordingly, in addition to presenting our results of operations as reported in our unaudited condensed consolidated financial statements in accordance with GAAP, the discussion in "Results of Operations" and "Segment Results" below utilizes a comparison of the three months ended March 31, 2023 (Successor) against the three months ended April 1, 2022 (Predecessor).

Specialty Brands

Net sales of Acthar® Gel for the three months ended March 31, 2023 (Successor) decreased $45.7 million, or 35.8%, to $82.0 million driven primarily by continued scrutiny on overall specialty pharmaceutical spending, slower than expected returning patient volumes and the entrance of new competition in fiscal 2022. Competition intensified with the commercial launch of a purified cortrophin gel product in 2022 and this competitive pressure is expected to continue to negatively impact sales of Acthar Gel in 2023. The ongoing competition is expected to continue to have an adverse effect on our financial condition, results of operations and cash flows. We continue to differentiate Acthar Gel through pre-clinical studies and through product enhancements, including the development of the Acthar Gel self-injection device, which has been completed, but we do not anticipate a launch in 2023. We continue to work toward the resolution of a regulatory matter involving one of our partners and not specific to our device. If approved, this product is expected to create an easier and more patient-friendly application for single unit dosage indications.

Net sales of Amitiza® for the three months ended March 31, 2023 (Successor) decreased $23.2 million, or 48.6%, to $24.5 million driven primarily by a decline in royalties associated with loss of exclusivity in the U.S. Additional generic competitors have entered the market in 2023, resulting in the elimination of the Par U.S. royalties.

Net sales of INOmax® for the three months ended March 31, 2023 (Successor) decreased $16.3 million, or 16.5%, to $82.7 million driven primarily by continued competition from alternative nitric oxide products, which could continue to adversely affect our ability to successfully maximize the value of INOmax and have an adverse effect on our financial condition, results of operations and cash flows. We continue to develop and pursue patent protection of next generation nitric oxide delivery systems and additional uses of nitric oxide through our submission of a 510(k) premarket notification to the U.S. Food and Drug Administration for our next generation nitric oxide delivery system. We further intend to vigorously enforce our intellectual property rights relating to our nitric oxide products against any additional parties that may seek to market an alternative version of our INOmax product and/or next generation delivery systems.

Specialty Generics

Net sales from the Specialty Generics segment for the three months ended March 31, 2023 (Successor) increased $21.1 million, or 13.9%, to $172.6 million driven primarily by an increase in finished-dosage generics net sales of $22.5 million driven by the Company's ability to manufacture and supply product during periods of market disruption offset by a decrease in API net sales of $1.4 million.

Results of Operations

Three Months Ended March 31, 2023 (Successor) Compared with Three Months Ended April 1, 2022 (Predecessor)

Net Sales

Net sales by geographic area were as follows (dollars in millions): 

	Successor		Predecessor		Non-GAAP
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022		Percentage Change
U.S.	$	379.6	$	449.8	(15.6)	%
Europe, Middle East and Africa	40.6		33.3		21.9
Other geographic areas	4.4		7.8		(43.6)
Net sales	$	424.6	$	490.9	(13.5)

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Net sales for the three months ended March 31, 2023 (Successor) decreased $66.3 million, or 13.5%, to $424.6 million, compared with $490.9 million for the three months ended April 1, 2022 (Predecessor). This decrease was primarily driven by a decrease in net sales of Acthar Gel, Amitiza and INOmax within our Specialty Brands segment, as previously mentioned. For further information on changes in our net sales, refer to "Segment Results" within this Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations.

Operating Loss

Gross profit. Gross profit for the three months ended March 31, 2023 (Successor) decreased $125.9 million, or 71.7%, to $49.8 million, compared with $175.7 million for the three months ended April 1, 2022 (Predecessor). Gross profit margin was 11.7% for the three months ended March 31, 2023 (Successor), compared with 35.8% for the three months ended April 1, 2022 (Predecessor). These decreases were primarily driven by the decrease in net sales and a change in product mix, coupled with $71.4 million of inventory step-up amortization expense. These decreases were partially offset, and serving to increase gross profit, by a decrease of $20.9 million in intangible assets amortization expense as a result of fresh-start accounting.

Selling, general and administrative expenses. Selling general and administrative ("SG&A") expenses for the three months ended March 31, 2023 (Successor) decreased $29.6 million, or 19.4%, to $122.9 million, compared with $152.5 million for the three months ended April 1, 2022 (Predecessor). As a percentage of net sales, SG&A expenses were 28.9% and 31.1% for the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor), respectively. The three months ended April 1, 2022 (Predecessor) included an $11.1 million increase to certain of our environmental liabilities. The remaining decrease was attributable to a foreign currency remeasurement gain of $0.4 million during the three months ended March 31, 2023 (Successor) as compared to a loss of $5.4 million during the three months ended April 1, 2022 (Predecessor), coupled with cost containment initiatives.

Research and development expenses. Research and development ("R&D") expenses for the three months ended March 31, 2023 (Successor) decreased $8.9 million, or 23.9%, to $28.3 million, compared with $37.2 million for the three months ended April 1, 2022 (Predecessor). As a percentage of net sales, R&D expenses were 6.7% and 7.6% for the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor), respectively. These decreases were primarily driven by cost containment initiatives coupled with the completion of certain development programs. We continue to focus current R&D activities on performing clinical studies and publishing clinical and non-clinical experiences and evidence that support health economic activities and patient outcomes.

Restructuring charges, net. During the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor), we incurred $1.2 million and $6.8 million of restructuring charges, net, respectively, primarily related to employee severance and benefits.

Non-Operating Items

Interest expense and interest income. During the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor), net interest expense was $157.3 million and $57.8 million, respectively. During the three months ended March 31, 2023 (Successor), interest expense included $45.9 million and $24.0 million of accretion expense associated with our settlement obligations and debt, respectively. The three months ended March 31, 2023 (Successor) also reflect increased interest rates on our variable interest rate debt as compared to the three months ended April 1, 2022 (Predecessor). Interest expense during the predecessor period included cash adequate protection payments of $15.7 million on certain of our predecessor senior secured debt instruments. The increase in our interest income of $4.3 million was primarily driven by higher interest earned on our money market funds during the three months ended March 31, 2023 (Successor).

Other expense, net. During the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor), we incurred other expense of $14.6 million and $4.1 million, respectively. The three months ended March 31, 2023 (Successor) included $15.1 million of unrealized losses on equity securities related to our investments in Silence Therapeutics plc ("Silence") and Panbela Therapeutics, Inc, while the three months ended April 1, 2022 (Predecessor) included $3.7 million of unrealized losses on equity securities related to our investment in Silence.

Reorganization items, net. During the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor), we recorded $5.6 million and $43.4 million in reorganization items, net, respectively. The Successor expenses represent amounts incurred after the Effective Date that directly resulted from the Chapter 11 Cases and were entirely comprised of professional fees associated with the implementation of the Plan. The Predecessor expenses represent amounts incurred after the Petition Date as a direct result of the Chapter 11 Cases and were comprised of professional fees and adjustments to reflect the carrying value of LSTC at their estimated allowed claim amounts.

Income tax benefit. We recognized an income tax benefit of $30.8 million on a loss from continuing operations before income taxes of $280.1 million for the three months ended March 31, 2023 (Successor). This resulted in an effective tax rate of 11.0%. The income tax benefit was comprised of $2.6 million of current tax expense and $33.4 million of deferred tax benefit. The income tax provision consisted of deferred income tax benefit predominately related to intangible asset amortization, accretion expense associated

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with our settlement obligations and debt, inventory step-up amortization expense and other operating activity, partially offset by current income tax expense related to a decrease in prepaid income taxes.

The income tax benefit of $30.8 million for the three months ended March 31, 2023 (Successor) consisted of $27.4 million attributed to pretax earnings in various jurisdictions, $2.1 million attributed to separation costs, reorganization items, net and restructuring charges, and $1.3 million attributed to the Coronavirus Aid, Relief, and Economic Security ("CARES") Act.

We recognized an income tax benefit of $5.9 million on a loss from continuing operations before income taxes of $126.1 million for the three months ended April 1, 2022 (Predecessor). This resulted in an effective tax rate of 4.7%. The income tax benefit was comprised of $5.0 million of current income tax benefit and $0.9 million of deferred income tax benefit, which predominantly related to an increase to prepaid taxes and intangible asset amortization, partially offset by utilization of loss carryforwards in non-valuation allowance jurisdictions.

The income tax benefit of $5.9 million for the three months ended April 1, 2022 (Predecessor) consisted of $4.8 million attributed to pretax earnings in various jurisdictions and $1.9 million attributed to separation costs, reorganization items, net and restructuring charges, partially offset by $0.8 million attributed to the CARES Act.

Segment Results

Management measures and evaluates our operating segments based on segment net sales and operating income. Management excludes corporate expenses from segment operating income. In addition, certain amounts that management considers to be non-recurring or non-operational are excluded from segment operating income because management and the chief operating decision maker evaluate the operating results of the segments excluding such items. These items include, but are not limited to, depreciation and amortization, share-based compensation, net restructuring charges, non-restructuring impairment charges and separation costs. Although these amounts are excluded from segment operating income, as applicable, they are included in reported consolidated operating loss and in the reconciliations presented below. Selected information by business segment is as follows:

Three Months Ended March 31, 2023 (Successor) Compared with Three Months Ended April 1, 2022 (Predecessor)

Net Sales

Net sales by segment are shown in the following table (dollars in millions): 

	Successor		Predecessor		Non-GAAP
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022		Percentage Change
Specialty Brands	$	252.0	$	339.4	(25.8)	%
Specialty Generics	172.6		151.5		13.9
Net sales	$	424.6	$	490.9	(13.5)	%

Specialty Brands. Net sales for the three months ended March 31, 2023 (Successor) decreased $87.4 million, or 25.8%, to $252.0 million, compared with $339.4 million for the three months ended April 1, 2022 (Predecessor). As previously discussed, the decrease in net sales was primarily driven by a $45.7 million, or 35.8%, decrease in Acthar Gel, a $23.2 million, or 48.6% decrease in Amitiza, and a $16.3 million, or 16.5%, decrease in INOmax.

Net sales for Specialty Brands by geography were as follows (dollars in millions):

	Successor		Predecessor		Non-GAAP
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022		Percentage Change
U.S.	$	233.3	$	318.3	(26.7)	%
Europe, Middle East and Africa	15.7		16.6		(5.4)
Other	3.0		4.5		(33.3)
Net sales	$	252.0	$	339.4	(25.8)	%

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Net sales for Specialty Brands by key products were as follows (dollars in millions):

	Successor		Predecessor		Non-GAAP
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022		Percentage Change
Acthar Gel	$	82.0	$	127.7	(35.8)	%
INOmax	82.7		99.0		(16.5)
Therakos	58.7		59.9		(2.0)
Amitiza	24.5		47.7		(48.6)
Terlivaz	2.2		—		—
Other	1.9		5.1		(62.7)
Specialty Brands	$	252.0	$	339.4	(25.8)	%

Specialty Generics. Net sales for the three months ended March 31, 2023 (Successor) increased $21.1 million, or 13.9%, to $172.6 million, compared with $151.5 million for the three months ended April 1, 2022 (Predecessor). As previously discussed, the increase in net sales was due to an increase in finished-dosage generics net sales of $22.5 million, or 28.3%, partially offset by a decrease in API net sales of $1.4 million, or 1.9%.

Net sales for Specialty Generics by geography were as follows (dollars in millions):

	Successor		Predecessor		Non-GAAP
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022		Percentage Change
U.S.	$	146.3	$	131.5	11.3	%
Europe, Middle East and Africa	24.9		16.7		49.1
Other	1.4		3.3		(57.6)
Net sales	$	172.6	$	151.5	13.9	%

Net sales for Specialty Generics by key products were as follows (dollars in millions):

	Successor		Predecessor		Non-GAAP
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022		Percentage Change
Opioids	$	62.2	$	50.0	24.4	%
ADHD	22.4		10.8		107.4
Addiction treatment	15.6		15.9		(1.9)
Other	1.8		2.8		(35.7)
Generics	102.0		79.5		28.3
Controlled substances	18.5		20.4		(9.3)
APAP	46.4		46.3		0.2
Other	5.7		5.3		7.5
API	70.6		72.0		(1.9)
Specialty Generics	$	172.6	$	151.5	13.9	%

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Operating Loss

Operating loss by segment for the three months ended March 31, 2023 (Successor) and the three months April 1, 2022 (Predecessor) is shown in the following table (dollars in millions):

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Specialty Brands (1)	$	32.4	$	164.8
Specialty Generics (2)	32.8		34.4
Segment operating income	65.2		199.2
Unallocated amounts:
Corporate and unallocated expenses (3)	(14.0)		(32.8)
Depreciation and amortization	(145.1)		(177.2)
Share-based compensation	(2.6)		(1.2)
Restructuring charges, net	(1.2)		(6.8)
Non-restructuring impairment charges	—		(2.0)
Separation costs (4)	(4.9)		—
Total operating loss	$	(102.6)	$	(20.8)

(1)Includes $61.1 million of inventory fair-value step-up expense during the three months ended March 31, 2023 (Successor).

(2)Includes $10.3 million of inventory fair-value step-up expense during the three months ended March 31, 2023 (Successor).

(3)Includes administration expenses and certain compensation, legal, environmental and other costs not charged to the Company's reportable segments.

(4)Represents costs included in SG&A, primarily related to expenses incurred related to professional fees and costs incurred as we explore potential sales of non-core assets to enable further deleveraging post-emergence.

Specialty Brands. Operating income for the three months ended March 31, 2023 (Successor) decreased $132.4 million, to $32.4 million, compared with $164.8 million for the three months ended April 1, 2022 (Predecessor). Operating margin decreased to 12.9% for the three months ended March 31, 2023 (Successor), compared with 48.6% for the three months ended April 1, 2022 (Predecessor). These decreases in operating income and margin were primarily driven by the $87.4 million, or 25.7%, decrease in net sales and a change in product mix, coupled with $61.1 million of inventory fair-value step-up expense, which resulted in a $155.5 million, or 53.2%, decrease in gross profit. Partially offsetting the decrease in operating income and serving to increase operating margin was a $14.5 million, or 14.9%, decrease in SG&A expenses primarily driven by cost containment initiatives coupled with a $0.6 million foreign currency remeasurement gain and a $5.3 million foreign currency remeasurement loss during the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor), respectively, and an $8.6 million, or 28.5%, decrease in combined R&D expenses also driven by continued cost containment initiatives.

Specialty Generics. Operating income for the three months ended March 31, 2023 (Successor) decreased $1.6 million, to $32.8 million, compared with $34.4 million for the three months ended April 1, 2022 (Predecessor). Operating margin decreased to 19.0% for the three months ended March 31, 2023 (Successor), compared with 22.7% for the three months ended April 1, 2022 (Predecessor). These decreases in operating income and margin were primarily driven by $10.3 million of inventory fair-value step-up expense, partially offset by an increase in net sales.

Corporate and unallocated expenses. Corporate and unallocated expenses for the three months ended March 31, 2023 (Successor) decreased $18.8 million, to $14.0 million, compared with $32.8 million for the three months ended April 1, 2022 (Predecessor). The three months ended April 1, 2022 (Predecessor) included an $11.1 million increase to certain of our environmental liabilities. The remaining decrease primarily related to continued cost containment initiatives.

Liquidity and Capital Resources.

Significant factors driving our liquidity position include cash flows generated from operating activities, financing transactions (inclusive of interest on our variable-rate debt instruments), capital expenditures, cash paid in connection with legal settlements, acquisitions and licensing agreements and cash received as a result of our divestitures. We believe that our sources of liquidity are adequate to fund our operations for the next twelve months and foreseeable future. Our ability to fund our capital needs, including to repay our outstanding indebtedness and meet our settlement obligations, will be impacted by our ongoing ability to generate cash from operations and access to capital markets. As discussed in greater detail in our Annual Report on Form 10-K, certain of our secured indebtedness has near-term maturity dates, most notably our First Lien Senior Secured Notes due April 2025 and our Second Lien Senior Secured Notes due April 2025. See the discussion of risks related to our outstanding indebtedness contained in Part I, Item 1A. "Risk Factors" of our Annual Report on Form 10-K under the heading "Risk Factors - Risk Related to our Indebtedness and Settlement Obligations."

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Pursuant to the Plan, we will make payments of $200.0 million and $16.5 million, inclusive of interest, related to our opioid and Acthar Gel-related settlements, respectively, upon the one-year anniversary of the Effective Date. Additionally, during the three months ended March 31, 2023 (Successor), the Company received a $133.8 million tax refund, plus $5.5 million of interest, related to the CARES Act income tax refund receivable. The remaining CARES Act income tax refund was received during April 2023.

We are exposed to interest rate risk on our variable-rate debt. On March 14, 2023, we entered into an interest rate cap agreement by converting a portion of our variable-rate debt to a fixed rate through the expiration date of the interest rate cap, which serves to reduce the volatility on future interest expense cash outflows. The interest rate cap agreement has a total notional value of $860.0 million with an upfront premium of $20.0 million and provides us with interest rate protection (i) for the period March 16, 2023 through July 19, 2023 to the extent that one-month London Interbank Offered Rate ("LIBOR") exceeds 4.65%, and (ii) for the period July 20, 2023 through March 26, 2026 to the extent that one-month Secured Overnight Financing Rate exceeds 3.84%. Refer to Note 12 of the notes to the unaudited condensed consolidated financial statements for additional information.

A summary of our cash flows from operating, investing and financing activities is provided in the following table (dollars in millions):

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Net cash from:
Operating activities	$	99.9	$	49.2
Investing activities	(19.0)		(23.4)
Financing activities	(11.0)		(4.6)
Effect of currency exchange rate changes on cash and cash equivalents	0.3		(0.7)
Net increase in cash, cash equivalents and restricted cash	$	70.2	$	20.5

Operating Activities

Net cash provided by operating activities of $99.9 million for the three months ended March 31, 2023 (Successor) was attributable to a net loss of $249.3 million, adjusted for non-cash items of $204.2 million, driven by depreciation and amortization of $145.1 million and accretion on our settlement obligations and debt of $69.9 million, partially offset with $145.0 million of cash inflow from net changes in working capital. The change in working capital was primarily driven by a $138.9 million inflow in income taxes predominately related to CARES Act income tax refunds of $139.3 million received, a $48.0 million increase in inventory and a $9.6 million increase in accounts receivable, partially offset by $31.1 million net cash outflow related to other assets and liabilities and a $20.4 million decrease in accounts payable.

Net cash provided by operating activities of $49.2 million for the three months ended April 1, 2022 (Predecessor) was attributable to a net loss of $119.6 million, adjusted for non-cash items of $192.7 million, driven by depreciation and amortization of $177.2 million coupled with cash used in working capital of $23.9 million. The change in working capital was primarily driven by a $63.3 million net cash outflow related to a decrease in accrued consulting fees and accrued payroll, a $27.0 million increase in inventory and a $7.8 million outflow in income taxes primarily driven by an increase in prepaid income taxes, partially offset by a $73.8 million decrease in accounts receivable primarily due to lower net sales.

Investing Activities

Net cash used in investing activities was $19.0 million for the three months ended March 31, 2023 (Successor), compared with $23.4 million for the three months ended April 1, 2022 (Predecessor) and was primarily driven by $19.3 million and $23.6 million of capital expenditures for the respective periods.

Under our term loan credit agreement and our notes, the proceeds from the sale of assets and businesses must be either reinvested into capital expenditures or business development activities within one year of the respective transaction or we are required to make repayments on our term loans and offer to repurchase certain of our notes.

Financing Activities

Net cash used in financing activities was $11.0 million for the three months ended March 31, 2023 (Successor), compared with $4.6 million for the three months ended April 1, 2022 (Predecessor) and was entirely attributable to debt repayments for both respective periods.

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Commitments and Contingencies

Legal Proceedings

See Note 11 of the notes to the unaudited condensed consolidated financial statements for a description of the litigation, legal and administrative proceedings and claims as of March 31, 2023 (Successor).

Critical Accounting Estimates

The preparation of our unaudited condensed consolidated financial statements in conformity with accounting principles generally accepted in the U.S. (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities and the reported amounts of revenues and expenses.

We believe that our critical accounting estimates are based on, among other things, judgments and assumptions made by management that include inherent risks and uncertainties. Refer to Note 1 of the notes to the unaudited condensed consolidated financial statements for the changes to the underlying accounting assumptions and estimates used in the critical accounting estimates disclosed in our Annual Report on Form 10-K.

Forward-Looking Statements

We have made forward-looking statements in this Quarterly Report on Form 10-Q that are based on management's beliefs and assumptions and on information currently available to management. Forward-looking statements include, but are not limited to, information concerning our possible or assumed future results of operations, business strategies, financing plans, competitive position, potential growth opportunities, potential operating performance improvements, the effects of competition, and the effects of future legislation or regulations. Forward-looking statements include all statements that are not historical facts and can be identified by the use of forward-looking terminology such as the words "believe," "expect," "plan," "intend," "project," "anticipate," "approximately," "estimate," "predict," "potential," "continue," "may," "could," "should" or the negative of these terms or similar expressions. Forward-looking statements include, but are not limited to, statements regarding:

•the comparability of Mallinckrodt’s post-emergence financial results to its historical results and the projections filed with the bankruptcy court;

•changes in Mallinckrodt’s business strategy that may be implemented by its Board;

•the listing of Mallinckrodt’s ordinary shares on NYSE American LLC, the emergence of an active trading market for Mallinckrodt’s ordinary shares and fluctuations in market price and trading volume;

• Mallinckrodt’s tax treatment by the Internal Revenue Service under Section 7874 and Section 382 of the Internal Revenue Code of 1986, as amended;

•Mallinckrodt’s repurchases of debt securities;

•the effects of the emergence from bankruptcy on the liquidity;

•results of operations and businesses of Mallinckrodt and its subsidiaries;

•governmental investigations, inquiries, regulatory actions, and lawsuits, in each case related to Mallinckrodt or its officers;

•matters related to the historical commercialization of opioids, including compliance with and restrictions under the global settlement to resolve all opioid-related claims;

•matters related to Acthar Gel, including the settlement with governmental parties to resolve certain disputes and compliance with and restrictions under the related corporate integrity agreement;

•the ability to maintain relationships with Mallinckrodt’s suppliers, customers, employees and other third parties as a result of, and following, the emergence from bankruptcy;

•the possibility that Mallinckrodt may be unable to achieve its business and strategic goals even now that the emergence from bankruptcy plan was successfully consummated;

•the non-dischargeability of certain claims against Mallinckrodt as part of the bankruptcy process;

•developing, funding and executing Mallinckrodt’s business plan and continuing as a going concern;

•Mallinckrodt’s post-bankruptcy capital structure;

•scrutiny from governments, legislative bodies and enforcement agencies related to sales, marketing and pricing practices;

•pricing pressure on certain of Mallinckrodt’s products due to legal changes or changes in insurers’ or other payers’ reimbursement practices resulting from recent increased public scrutiny of healthcare and pharmaceutical costs;

•the reimbursement practices of governmental health administration authorities, private health coverage insurers and other third-party payers;

•complex reporting and payment obligations under the Medicare and Medicaid rebate programs and other governmental purchasing and rebate programs;

•cost containment efforts of customers, purchasing groups, third-party payers and governmental organizations;

•changes in or failure to comply with relevant laws and regulations;

28

•Mallinckrodt’s and its partners’ ability to successfully develop or commercialize new products or expand commercial opportunities;

•Mallinckrodt’s ability to navigate price fluctuations;

•competition;

•Mallinckrodt’s and its partners’ ability to protect intellectual property rights;

•limited clinical trial data for Acthar Gel;

•clinical studies and related regulatory processes;

•product liability losses and other litigation liability;

•material health, safety and environmental liabilities;

•business development activities;

•attraction and retention of key personnel;

•the effectiveness of information technology infrastructure including cybersecurity and data leakage risks;

•customer concentration;

•Mallinckrodt’s reliance on certain individual products that are material to its financial performance;

•Mallinckrodt’s ability to receive procurement and production quotas granted by the U.S. Drug Enforcement Administration;

•complex manufacturing processes;

•conducting business internationally;

•Mallinckrodt’s ability to achieve expected benefits from restructuring activities;

•Mallinckrodt’s significant levels of intangible assets and related impairment testing;

•labor and employment laws and regulations;

•natural disasters or other catastrophic events;

•Mallinckrodt’s substantial indebtedness, its ability to generate sufficient cash to reduce its indebtedness and its potential need and ability to incur further indebtedness;

•restrictions on Mallinckrodt’s operations contained in the agreements governing Mallinckrodt’s indebtedness;

•Mallinckrodt’s variable rate indebtedness;

•future changes to applicable tax laws or the impact of disputes with governmental tax authorities; and

•the impact of Irish laws.

In addition to the above considerations, see the "Risk Factors" sections of our Annual Report on Form 10-K and subsequent filings with the SEC that identify and describe in more detail the risks and uncertainties to which our businesses are subject. There may be other risks and uncertainties that we are unable to predict at this time or that we currently do not expect to have a material adverse effect on our business.

These forward-looking statements are made as of the filing date of this Quarterly Report on Form 10-Q. We expressly disclaim any obligation to update these forward-looking statements other than as required by law. Given these uncertainties, one should not put undue reliance on any forward-looking statements.

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

Our operations include activities in the U.S. and countries outside of the U.S. These operations expose us to a variety of market risks, including the effects of changes in interest rates and currency exchange rates. We monitor and manage these financial exposures as an integral part of our overall risk management program. We do not utilize derivative instruments for trading or speculative purposes.

Interest Rate Risk

Our exposure to interest rate risk relates primarily to our variable-rate debt instruments, which bear interest based on LIBOR plus margin. As of March 31, 2023 (Successor), our outstanding debt included $1,727.9 million variable-rate debt on our senior secured term loans. Assuming a one percent increase in the applicable interest rates, in excess of applicable minimum floors, annual interest expense for fiscal 2023 would increase by approximately $8.7 million, which includes the impact of the interest rate cap. For additional information on the interest rate cap, refer to Note 12 of the notes to the unaudited condensed consolidated financial statements.

The remaining outstanding debt as of March 31, 2023 (Successor) is fixed-rate debt. Changes in market interest rates generally affect the fair value of fixed-rate debt, but do not impact earnings or cash flows.

Currency Risk

Certain net sales and costs of our international operations are denominated in the local currency of the respective countries. As such, profits from these subsidiaries may be impacted by fluctuations in the value of these local currencies relative to the U.S. dollar.

29

We also have significant intercompany financing arrangements that may result in gains and losses in our results of operations. In an effort to mitigate the impact of currency exchange rate effects we may hedge certain operational and intercompany transactions; however, our hedging strategies may not fully offset gains and losses recognized in our results of operations.

The condensed consolidated statement of operations is exposed to currency risk from intercompany financing arrangements, which primarily consist of intercompany debt and intercompany cash pooling, where the denominated currency of the transaction differs from the functional currency of one or more of our subsidiaries. The aggregate potential unfavorable impact from a hypothetical 10.0% adverse change in foreign exchange rates was $2.3 million as of March 31, 2023 (Successor), with all other variables held constant. This hypothetical loss does not reflect any hypothetical benefits that would be derived from hedging activities, including cash holdings in similar foreign currencies, that we have historically utilized to mitigate our exposure to movements in foreign exchange rates.

Item 4. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures designed to ensure that information required to be disclosed in reports filed under the Securities Exchange Act of 1934, as amended ("the Exchange Act"), is recorded, processed, summarized and reported within the specified time periods, and that such information is accumulated and communicated to management, including our CEO and Chief Financial Officer ("CFO"), as appropriate, to allow timely decisions regarding required disclosure.

Our management, with the participation of our CEO and CFO, evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this Quarterly Report on Form 10-Q. Based on that evaluation, our CEO and CFO concluded that, as of that date, our disclosure controls and procedures were effective.

Changes in Internal Control over Financial Reporting

There have been no changes in our internal control over financial reporting during the three months ended March 31, 2023 (Successor) that have materially affected, or are likely to materially affect, our internal control over financial reporting.

30

PART II. OTHER INFORMATION

Item 1. Legal Proceedings.

See Note 11 of the notes to the unaudited condensed consolidated financial statements for a description of the litigation, legal and administrative proceedings and claims as of March 31, 2023 (Successor), which is incorporated herein by reference.

Item 1A. Risk Factors.

There have been no material changes to the risk factors previously disclosed in Part I, Item 1A. "Risk Factors" in our Annual Report on Form 10-K for the year ended December 30, 2022, filed with the SEC on March 3, 2023.

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

None.

31

Item 6. Exhibits.

Exhibit Number	Exhibit
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.
32.1	Certifications of the Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	Interactive Data File (Form 10-Q for the quarterly period ended March 31, 2023 filed in XBRL). The financial information contained in the XBRL-related documents is "unaudited" and "unreviewed." The instance document does not appear in the interactive file because its XBRL tags are embedded within the inline XBRL document.
104	Cover Page Interactive Data File (embedded within the inline XBRL document and included in Exhibit 101).

32

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.

MALLINCKRODT PLC
By:	/s/ Bryan M. Reasons
	Bryan M. Reasons Executive Vice President and Chief Financial Officer (principal financial and accounting officer)

Date: May 9, 2023

33

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Sigurdur Olafsson, certify that:

1.	I have reviewed this quarterly report on Form 10-Q of Mallinckrodt plc;
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 the Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we 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 principles;
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 9, 2023	By:	/s/    Sigurdur Olafsson
		Sigurdur Olafsson
		President and Chief Executive Officer and Director (principal executive officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Bryan M. Reasons, certify that:

1.	I have reviewed this quarterly report on Form 10-Q of Mallinckrodt plc;
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 the Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we 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 principles;
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 9, 2023	By:	/s/    Bryan M. Reasons
		Bryan M. Reasons
		Executive Vice President and Chief Financial Officer (principal financial and accounting officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned officers of Mallinckrodt plc ("the Company") hereby certify to their knowledge that the Company's quarterly report on Form 10-Q for the period ended March 31, 2023 ("the Report"), as filed with the Securities and Exchange Commission on the date hereof, fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended, and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:	/s/    Sigurdur Olafsson
Sigurdur Olafsson
President and Chief Executive Officer and Director (principal executive officer)

May 9, 2023

By:	/s/    Bryan M. Reasons
Bryan M. Reasons
Executive Vice President and Chief Financial Officer (principal financial and accounting officer)

May 9, 2023

XML

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2023	May 05, 2023
Document and Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	001-35803
Entity Registrant Name	Mallinckrodt plc
Entity Incorporation, State or Country Code	L2
Entity Tax Identification Number	98-1088325
Entity Address, Address Line One	College Business & Technology Park
Entity Address, City or Town	Dublin
Entity Address, Postal Zip Code	15
Entity Address, Country	IE
City Area Code	1
Local Phone Number	696 0000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Central Index Key	0001567892
Current Fiscal Year End Date	--12-29
Document Period End Date	Mar. 31, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false
Ordinary Shares Outstanding		13,170,932
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Address, Address Line Two	Cruiserath
Entity Address, Address Line Three	Blanchardstown
Country Region	353
Entity Filer Category	Accelerated Filer
Title of 12(b) Security	Ordinary shares, par value $0.01 per share
Trading Symbol	MNK
Security Exchange Name	NYSEAMER

XML

Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Net sales	$ 424.6	$ 490.9
Cost of sales	374.8	315.2
Gross profit	49.8	175.7
Selling, general and administrative expenses	122.9	152.5
Research and development expenses	28.3	37.2
Restructuring charges, net	1.2	6.8
Operating loss	(102.6)	(20.8)
Interest expense	162.0	58.2
Interest income	(4.7)	(0.4)
Other expense, net	(14.6)	(4.1)
Reorganization items, net	(5.6)	(43.4)
Loss from continuing operations before income taxes	(280.1)	(126.1)
Income tax benefit	(30.8)	(5.9)
Loss from continuing operations	(249.3)	(120.2)
Income from discontinued operations, net of income taxes	0.0	0.6
Net loss	$ (249.3)	$ (119.6)
Basic (loss) income per share (Note 5):
Loss from continuing operations	$ (18.93)	$ (1.42)
Income from discontinued operations	0	0.01
Net loss	$ (18.93)	$ (1.41)
Basic weighted-averaged shares outstanding (in shares)	13.2	84.7
Diluted (loss) income per share (Note 5):
Loss from continuing operations	$ (18.93)	$ (1.42)
Income from discontinued operations	0	0.01
Net loss	$ (18.93)	$ (1.41)
Diluted weighted-average shares outstanding (in shares)	13.2	84.7
Retained Earnings (Deficit)
Net loss	$ (249.3)	$ (119.6)

XML

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Net loss	$ (249.3)	$ (119.6)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(2.6)	0.0
Currency translation adjustments	1.8	0.2
Derivatives, net of tax	(4.3)	0.0
Benefit plans, net of tax	(0.1)	(0.2)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(251.9)	(119.6)
Net loss	(249.3)	(119.6)
Other comprehensive loss, net of tax:
Currency translation adjustments	1.8	0.2
Derivatives, net of tax	(4.3)	0.0
Benefit plans, net of tax	(0.1)	(0.2)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(2.6)	0.0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	(251.9)	(119.6)
Retained Earnings (Deficit)
Net loss	(249.3)	(119.6)
Net loss	(249.3)	$ (119.6)
Accumulated Other Comprehensive Loss
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(2.6)
Other comprehensive loss, net of tax:
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ (2.6)

XML

Condensed Consolidated Balance Sheets $ in Millions	Mar. 31, 2023 USD ($) $ / shares shares	Dec. 30, 2022 USD ($) $ / shares shares
Cash and cash equivalents	$ 480.0	$ 409.5
Accounts receivable, less allowance for doubtful accounts of $5.1 and $4.4	395.1	405.3
Inventories	895.4	947.6
Prepaid expenses and other current assets	120.7	273.4
Assets, Current	1,891.2	2,035.8
Property, plant and equipment, net	454.4	457.6
Intangible assets, net	2,710.6	2,843.8
Other assets	205.2	201.1
Assets	5,770.8	6,013.8
Current maturities of long-term debt	44.1	44.1
Accounts payable	86.4	114.0
Accrued payroll and payroll-related costs	35.4	49.5
Accrued interest	76.8	29.0
Medicaid lawsuit liability	16.5	16.5
Opioid-Related Litigation Settlement liability, Current	200.0	200.0
Accrued and other current liabilities	234.5	290.7
Liabilities, Current	693.7	743.8
Long-term debt	3,041.6	3,027.7
Opioid-Related Litigation Settlement liability	419.6	379.9
Acthar Gel-Related Settlement, Non-current	81.2	75.0
Pension and postretirement benefits	41.2	41.0
Environmental liabilities	35.6	35.8
Other income tax liabilities	18.5	18.2
Other liabilities	75.0	78.7
Liabilities	4,406.4	4,400.1
Preferred shares	0.0	0.0
Ordinary A shares	0.0	0.0
Ordinary shares	$ 0.1	$ 0.1
Preferred shares, par value (in usd per share) | $ / shares	$ 0.01	$ 0.01
Preferred shares, shares authorized (in shares) | shares	500,000,000	500,000,000
Preferred shares, shares issued (in shares) | shares	0	0
Preferred shares, shares outstanding (in shares) | shares	0	0
Deferred Tax Assets, Net	$ 509.4	$ 475.5
Ordinary shares, shares issued (in shares) | shares	13,170,932	13,170,932
Ordinary shares, shares authorized (in shares) | shares	500,000,000	500,000,000
Common Stock, Shares, Outstanding | shares	13,170,932	13,170,932
Ordinary shares, par value (in usd per share) | $ / shares	$ 0.01	$ 0.01
Additional Paid in Capital	$ 2,193.6	$ 2,191.0
Accumulated Other Comprehensive Income (Loss), Net of Tax	8.2	10.8
Retained deficit	(837.5)	(588.2)
Stockholders' Equity Attributable to Parent	1,364.4	1,613.7
Liabilities and Equity	5,770.8	6,013.8
Current Assets:
Cash and cash equivalents	480.0	409.5
Accounts receivable, less allowance for doubtful accounts of $5.1 and $4.4	395.1	405.3
Inventories	895.4	947.6
Prepaid expenses and other current assets	120.7	273.4
Total current assets	1,891.2	2,035.8
Property, plant and equipment, net	454.4	457.6
Intangible assets, net	2,710.6	2,843.8
Other assets	205.2	201.1
Total Assets	5,770.8	6,013.8
Current Liabilities:
Current maturities of long-term debt	44.1	44.1
Accounts payable	86.4	114.0
Accrued payroll and payroll-related costs	35.4	49.5
Accrued interest	76.8	29.0
Accrued and other current liabilities	234.5	290.7
Total current liabilities	693.7	743.8
Pension and postretirement benefits	41.2	41.0
Environmental liabilities	35.6	35.8
Other income tax liabilities	18.5	18.2
Other liabilities	75.0	78.7
Total Liabilities and Shareholders' Equity	5,770.8	6,013.8
Other liabilities	4,406.4	4,400.1
Shareholders' Equity:
Preferred shares	$ 0.0	$ 0.0
Preferred shares, shares outstanding (in shares) | shares	0	0
Ordinary A shares	$ 0.0	$ 0.0
Ordinary shares	0.1	0.1
Additional Paid in Capital	2,193.6	2,191.0
Retained deficit	(837.5)	(588.2)
Accumulated Other Comprehensive Income (Loss), Net of Tax	8.2	10.8
Total Shareholders' Equity	$ 1,364.4	$ 1,613.7
Ordinary A
Ordinary shares, shares issued (in shares) | shares	0	0.00
Ordinary shares, shares authorized (in shares) | shares	40,000	40,000
Shareholders' Equity:
Ordinary A shares, shares outstanding (in shares) | shares	0	0

XML

Condensed Consolidated Balance Sheets (Parenthetical) $ in Millions	Mar. 31, 2023 USD ($) $ / shares shares	Mar. 31, 2023 € / shares	Dec. 30, 2022 USD ($) $ / shares shares	Dec. 30, 2022 € / shares
Allowance for doubtful accounts | $	$ 5.1		$ 4.4
Preferred shares, par value (in usd per share) | $ / shares	$ 0.01		$ 0.01
Preferred shares, shares authorized (in shares)	500,000,000		500,000,000
Preferred shares, shares issued (in shares)	0		0
Preferred shares, shares outstanding (in shares)	0		0
Ordinary shares, par value (in usd per share) | $ / shares	$ 0.01		$ 0.01
Ordinary shares, shares authorized (in shares)	500,000,000		500,000,000
Ordinary shares, shares issued (in shares)	13,170,932		13,170,932
Ordinary shares, shares outstanding (in shares)	13,170,932		13,170,932
Ordinary A
Ordinary shares, par value (in usd per share) | € / shares		€ 1.00		€ 1.00
Ordinary shares, shares authorized (in shares)	40,000		40,000
Ordinary shares, shares issued (in shares)	0		0.00
Ordinary A shares, shares outstanding (in shares)	0		0

XML

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 0.3	$ (0.7)
Net loss	(249.3)	(119.6)
Depreciation and amortization	145.1	177.2
Share-based compensation		1.2
Deferred income taxes	(33.4)	(0.9)
Reorganization Items, non-cash	0.0	2.9
Accretion Expense	69.9	0.0
Other Noncash Income (Expense)	(20.0)	(12.3)
Increase (Decrease) in Accounts Receivable	(9.6)	(73.8)
Increase (Decrease) in Inventories	(48.0)	27.0
Accounts payable	(20.4)	0.4
Income taxes	138.9	(7.8)
Increase (Decrease) in Other Operating Assets and Liabilities, Net	31.1	63.3
Net Cash Provided by (Used in) Operating Activities	99.9	49.2
Payments to Acquire Property, Plant, and Equipment	19.3	23.6
Payments for (Proceeds from) Other Investing Activities	(0.3)	(0.2)
Net Cash Provided by (Used in) Investing Activities	(19.0)	(23.4)
Repayment of Long-term Debt, Long-term Lease Obligation, and Capital Security	11.0	4.6
Net Cash Provided by (Used in) Financing Activities	(11.0)	(4.6)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	70.2	20.5
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	536.9	1,425.7
Cash and cash equivalents	480.0	1,365.3
Restricted Cash and Investments, Current	21.5	24.0
Restricted Cash and Investments, Noncurrent	35.4	36.4
Cash Flows From Operating Activities:
Net loss	(249.3)	(119.6)
Adjustments to reconcile net cash from operating activities:
Depreciation and amortization	145.1	177.2
Share-based compensation		1.2
Deferred income taxes	(33.4)	(0.9)
Reorganization Items, non-cash	0.0	2.9
Other non-cash items	20.0	12.3
Changes in assets and liabilities:
Accounts receivable, net	9.6	73.8
Inventories	48.0	(27.0)
Accounts payable	(20.4)	0.4
Income taxes	138.9	(7.8)
Other	(31.1)	(63.3)
Net Cash From Operating Activities	99.9	49.2
Cash Flows From Investing Activities:
Capital expenditures	(19.3)	(23.6)
Other	0.3	0.2
Net Cash From Investing Activities	(19.0)	(23.4)
Cash Flows From Financing Activities:
Repayment of external debt	(11.0)	(4.6)
Net Cash Provided From Financing Activities	(11.0)	(4.6)
Net change in cash, cash equivalents and restricted cash	70.2	20.5
Cash, cash equivalents and restricted cash at beginning of period	466.7	1,405.2
Cash, cash equivalents and restricted cash at end of period	536.9	1,425.7
Cash and cash equivalents, end of period	480.0	1,365.3
Restricted Cash and Investments, Current	21.5	24.0
Restricted Cash and Investments, Noncurrent	35.4	36.4
Retained Earnings (Deficit)
Net loss	(249.3)	(119.6)
Cash Flows From Operating Activities:
Net loss	(249.3)	$ (119.6)
Additional Paid-In Capital
Share-based compensation	2.6
Adjustments to reconcile net cash from operating activities:
Share-based compensation	$ 2.6

XML

Condensed Consolidated Statement of Changes in Shareholders' Equity Statement - USD ($) $ in Millions	Total	Ordinary Shares	Additional Paid-In Capital	Retained Earnings (Deficit)	Accumulated Other Comprehensive Loss	Treasury Stock, Common
Shares, Outstanding		94,300,000				9,600,000
Beginning balance at Dec. 31, 2021	$ 313.4	$ 18.9	$ 5,597.8	$ (3,678.9)	$ (8.3)	$ (1,616.1)
Net loss	(119.6)			(119.6)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0.0
Share-based compensation	1.2		1.2
Ending balance at Apr. 01, 2022	$ 195.0	$ 18.9	5,599.0	(3,798.5)	(8.3)	$ (1,616.1)
Shares, Outstanding		94,300,000				9,600,000
Shares, Outstanding		13,200,000				0
Beginning balance, ordinary shares (in shares) at Dec. 30, 2022	13,170,932
Beginning balance at Dec. 30, 2022	$ 1,613.7	$ 0.1	2,191.0	(588.2)	10.8	$ 0.0
Net loss	(249.3)			(249.3)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(2.6)				(2.6)
Share-based compensation	$ 2.6
Ending balance, ordinary shares (in shares) at Mar. 31, 2023	13,170,932
Ending balance at Mar. 31, 2023	$ 1,364.4	$ 0.1	$ 2,193.6	$ (837.5)	$ 8.2	$ 0.0
Shares, Outstanding		13,200,000				0

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Background and Basis of Presentation

3 Months Ended

Mar. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Background and Basis of Presentation

1. Background and Basis of Presentation

Background

Mallinckrodt plc is a global business of multiple wholly owned subsidiaries (collectively, "Mallinckrodt" or "the Company") that develop, manufacture, market and distribute specialty pharmaceutical products and therapies. Areas of focus include autoimmune and rare diseases in specialty areas like neurology, rheumatology, hepatology, nephrology, pulmonology, ophthalmology and oncology; immunotherapy and neonatal respiratory critical care therapies; analgesics; cultured skin substitutes and gastrointestinal products.

The Company operates in two reportable segments, which are further described below:

•Specialty Brands includes innovative specialty pharmaceutical brands; and

•Specialty Generics includes niche specialty generic drugs and active pharmaceutical ingredients ("API(s)").

The Company owns or has rights to use the trademarks and trade names that are used in conjunction with the operation of its business. One of the more important trademarks that the Company owns or has rights to use that appears in this Quarterly Report on Form 10-Q is "Mallinckrodt," which is a registered trademark or the subject of pending trademark applications in the United States ("U.S.") and other jurisdictions. Solely for convenience, the Company only uses the ™ or ® symbols the first time any trademark or trade name is mentioned in the following notes. Such references are not intended to indicate in any way that the Company will not assert, to the fullest extent permitted under applicable law, its rights to its trademarks and trade names. Each trademark or trade name of any other company appearing in the following notes is, to the Company's knowledge, owned by such other company.

Basis of Presentation

On October 12, 2020 ("Petition Date"), Mallinckrodt plc and substantially all of its U.S. subsidiaries, including certain subsidiaries of Mallinckrodt plc operating the Specialty Generics business ("Specialty Generics Subsidiaries") and the Specialty Brands business ("Specialty Brands Subsidiaries"), and certain of the Company's international subsidiaries (together with the Company, Specialty Generics Subsidiaries and Specialty Brands Subsidiaries, the "Debtors") voluntarily initiated proceedings ("Chapter 11 Cases") under chapter 11 of title 11 ("Chapter 11") of the United States Code ("Bankruptcy Code"). On March 2, 2022, the U.S. Bankruptcy Court for the District of Delaware ("Bankruptcy Court") entered an order confirming the fourth amended plan of reorganization (with technical modifications) ("Plan"). Subsequent to the filing of the Chapter 11 Cases, Chapter 11 proceedings commenced by a limited subset of the Debtors were recognized and given effect in Canada, and separately the High Court of Ireland made an order confirming a scheme of arrangement on April 27, 2022, which is based on and consistent in all respects with the Plan ("Scheme of Arrangement"). On June 8, 2022, the Bankruptcy Court entered an order approving a minor modification to the Plan. The Plan became effective on June 16, 2022 ("Effective Date"), and on such date the Company emerged from the Chapter 11 and the Scheme of Arrangement became effective concurrently.

Upon emergence from Chapter 11, the Company adopted fresh-start accounting in accordance with the provisions of Financial Accounting Standards Board Accounting Standards Codification Topic 852 - Reorganizations, and became a new entity for financial reporting purposes as of the Effective Date. References to "Successor" relate to the financial position as of June 16, 2022 and results of operations of the reorganized Company subsequent to June 16, 2022, while references to "Predecessor" relate to the financial position prior to June 16, 2022 and results of operations of the Company prior to, and including, June 16, 2022. All emergence-related transactions of the Predecessor were recorded as of June 16, 2022. Accordingly, the unaudited condensed consolidated financial statements for the Successor are not comparable to the unaudited condensed consolidated financial statements for the Predecessor.

Reorganization items, net for the Successor represents amounts incurred after the Effective Date that directly resulted from Chapter 11 and were entirely comprised of professional fees associated with the implementation of the Plan. Reorganization items, net for the Predecessor represents amounts incurred after the Petition Date but prior to emergence as a direct result of the Chapter 11 Cases and were comprised of bankruptcy-related professional fees and adjustments to reflect the carrying value of liabilities subject to compromise ("LSTC") at their estimated allowed claim amounts, as such adjustments were approved by the Bankruptcy Court. Cash paid for reorganization items, net for the three months ended March 31, 2023 (Successor) and April 1, 2022 (Successor) was $9.4 million and $79.1 million, respectively.

The Company also reassessed and updated its product line net sales presentation for its Specialty Generics segment. Beginning with the Quarterly Report on Form 10-Q for the quarterly period ended July 1, 2022 (Successor), the Company's unaudited condensed consolidated financial statements reflect the updated product line net sales structure for its Specialty Generics segment. Prior year amounts have been recast to conform to current presentation.

The unaudited condensed consolidated financial statements have been prepared in U.S. dollars and in accordance with accounting principles generally accepted in the U.S. ("GAAP"). The preparation of the unaudited condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities, disclosure of contingent assets and liabilities and the reported amounts of revenues and expenses. Actual results may differ from those estimates. The unaudited condensed consolidated financial statements include the accounts of the Company, its wholly owned subsidiaries and entities in which they own or control more than 50.0% of the voting shares, or have the ability to control through similar rights. In the opinion of management, all adjustments necessary for a fair statement of results of operations, cash flows and financial position have been made. All intercompany balances and transactions have been eliminated in consolidation and all normal recurring adjustments necessary for a fair presentation have been included in the results reported. The accompanying unaudited condensed consolidated financial statements have been prepared assuming the Company will continue as a going concern.

The results of entities disposed of are included in the unaudited condensed consolidated financial statements up to the date of disposal, and where appropriate, these operations have been reported in discontinued operations. Divestitures of product lines and businesses not meeting the criteria for discontinued operations have been reflected in operating loss.

The fiscal year end balance sheet data was derived from audited consolidated financial statements, but does not include all of the annual disclosures required by GAAP; accordingly these unaudited condensed consolidated financial statements should be read in conjunction with the Company's audited annual consolidated financial statements included in its Annual Report on Form 10-K for the fiscal year ended December 30, 2022 filed with the U.S. Securities and Exchange Commission ("SEC") on March 3, 2023 ("Annual Report on Form 10-K").

Fiscal Year

The Company reports its results based on a "52-53 week" year ending on the last Friday of December. Unless otherwise indicated, the three months ended March 31, 2023 (Successor) refers to the thirteen week period ended March 31, 2023 (Successor) and the three months ended April 1, 2022 (Predecessor) refers to the thirteen week period ended April 1, 2022 (Predecessor).

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Revenue from Contracts with Customers Revenue from Contracts with Customers (Notes)

3 Months Ended

Mar. 31, 2023

Revenue from Contract with Customer [Abstract]

Revenue from Contract with Customer [Text Block]

2. Revenue from Contracts with Customers

Product Sales Revenue

See Note 13 for presentation of the Company's net sales by product family.

Reserves for variable consideration

The following table reflects activity in the Company's sales reserve accounts:

	Rebates and Chargebacks (1)		Product Returns		Other Sales Deductions		Total
Balance as of December 31, 2021 (Predecessor)	$	241.8	$	21.5	$	9.5	$	272.8
Provisions	370.8		2.4		9.7		382.9
Payments or credits	(412.0)		(4.3)		(10.0)		(426.3)
Balance as of April 1, 2022 (Predecessor)	$	200.6	$	19.6	$	9.2	$	229.4
Balance as of December 30, 2022 (Successor)	$	265.3	$	16.0	$	12.7	$	294.0
Provisions	355.6		3.2		9.5		368.3
Payments or credits	(404.3)		(4.0)		(15.0)		(423.3)
Balance as of March 31, 2023 (Successor)	$	216.6	$	15.2	$	7.2	$	239.0

(1)Includes $58.9 million and $89.3 million of accrued Medicaid and $44.6 million and $55.3 million of accrued rebates as of March 31, 2023 (Successor) and December 30, 2022 (Successor), respectively, included within accrued and other current liabilities in the unaudited condensed consolidated balance sheets.

Product sales transferred to customers at a point in time and over time were as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Product sales transferred at a point in time	80.2	%	79.5	%
Product sales transferred over time	19.8		20.5

Transaction price allocated to the remaining performance obligations

The following table includes estimated revenue from contracts extending greater than one year for certain of the Company's hospital products that are expected to be recognized in the future related to performance obligations that were unsatisfied or partially unsatisfied as of March 31, 2023 (Successor):

Remainder of Fiscal 2023	$	56.6
Fiscal 2024	37.7
Fiscal 2025	13.2
Thereafter	0.2

Product Royalty Revenues

The Company licenses certain rights to Amitiza® (lubiprostone) ("Amitiza") to third parties in exchange for royalties on net sales of the product. The Company receives a double-digit royalty based on a percentage of the gross profits of the licensed products sold during the term of the agreements. The Company recognizes such royalty revenue as the related sales occur. The associated royalty revenue recognized was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Royalty revenue	$	3.4	$	20.0

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Restructuring and Related Charges

3 Months Ended

Mar. 31, 2023

Restructuring and Related Activities [Abstract]

Restructuring and Related Charges

3. Restructuring and Related Charges

During fiscal 2021 and 2018, the Company launched restructuring programs designed to improve its cost structure, neither of which has a specified time period. Charges of $50.0 million to $100.0 million were provided for under the 2021 program and $100.0 million to $125.0 million were provided for under the 2018 program. The 2021 program will commence upon substantial completion of the 2018 program, and has not commenced as of March 31, 2023 (Successor).

Net restructuring and related charges by segment were as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Specialty Generics	$	—	$	3.5
Corporate	1.9		3.3
Restructuring and related charges, net	1.9		6.8
Less: accelerated depreciation	(0.7)		—
Restructuring charges, net	$	1.2	$	6.8

Net restructuring and related charges by program were comprised of the following:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
2018 Program	$	1.9	$	6.8
Less: non-cash charges, including accelerated depreciation	(0.8)		(2.1)
Total charges expected to be settled in cash	$	1.1	$	4.7

The following table summarizes cash activity for restructuring reserves for the 2018 Program, which primarily related to employee severance and benefits:

	2018 Program
Balance as of December 30, 2022 (Successor)	$	4.6
Charges from continuing operations	1.2
Changes in estimate from continuing operations	(0.1)
Cash payments	(4.2)
Balance as of March 31, 2023 (Successor)	$	1.5

As of March 31, 2023 (Successor), net restructuring and related charges incurred cumulative to date for the 2018 Program were as follows:

	Successor		Predecessor
Specialty Brands	$	—	$	3.1
Specialty Generics	0.8		18.5
Corporate	13.2		84.0
	$	14.0	$	105.6

All of the restructuring reserves were included in accrued and other current liabilities on the Company's unaudited condensed consolidated balance sheets. Amounts paid in the future may differ from the amount currently recorded.

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Income Taxes

6 Months Ended

Jun. 16, 2022

Income Tax Disclosure [Abstract]

Income Tax Disclosure

4. Income Taxes

The Company's income tax expense (benefit) was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Current tax expense (benefit)	$	2.6	$	(5.0)
Deferred tax benefit	(33.4)		(0.9)
Income tax benefit	$	(30.8)	$	(5.9)

The Company recognized an income tax benefit of $30.8 million on a loss from continuing operations before income taxes of $280.1 million for the three months ended March 31, 2023 (Successor). This resulted in an effective tax rate of 11.0%. The income tax provision consisted of a deferred income tax benefit predominately related to intangible asset amortization, accretion expense associated with our settlement obligations and debt, inventory step-up amortization expense and other operating activity, partially offset by current income tax expense related to a decrease in prepaid income taxes.

The income tax benefit of $30.8 million for the three months ended March 31, 2023 (Successor) consisted of $27.4 million attributed to pretax earnings in various jurisdictions, $2.1 million attributed to separation costs, reorganization items, net and restructuring charges, and $1.3 million attributed to the Coronavirus Aid, Relief, and Economic Security ("CARES") Act.

The Company recognized an income tax benefit of $5.9 million on a loss from continuing operations before income taxes of $126.1 million for the three months ended April 1, 2022 (Predecessor). This resulted in an effective tax rate of 4.7%. The current and deferred income tax benefits were predominantly related to an increase to prepaid taxes and intangible asset amortization partially offset by utilization of loss carryforwards in non-valuation allowance jurisdictions.

The income tax benefit of $5.9 million for the three months ended April 1, 2022 (Predecessor) consisted of $4.8 million attributed to pretax earnings in various jurisdictions and $1.9 million attributed to separation costs, reorganization items, net and restructuring charges, partially offset by $0.8 million attributed to the CARES Act.

During the three months ended March 31, 2023 (Successor), net cash refunds for income taxes were $136.3 million, including refunds of $139.3 million received as a result of provisions in the CARES Act and net payments of $3.0 million related to operational activity. During the three months ended April 1, 2022 (Predecessor), net cash payments for income taxes were $2.7 million.

The Company's unrecognized tax benefits, excluding interest, totaled $24.8 million as of both March 31, 2023 (Successor) and December 30, 2022 (Successor). If favorably settled, these balances would benefit the effective tax rate. The total amount of accrued interest and penalties related to these obligations was $3.1 million and $2.8 million as of March 31, 2023 (Successor) and December 30, 2022 (Successor), respectively.

Within the next twelve months, the unrecognized tax benefits and the related interest and penalties are not expected to significantly change.

Certain of the Company's subsidiaries continue to be subject to examination by taxing authorities. The earliest open years subject to examination for both the U.S federal and state jurisdictions and various foreign jurisdictions, including Ireland, Japan, Luxembourg, Switzerland and the United Kingdom is 2013.

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Earnings per Share

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Earnings per Share

5. Loss per Share

Loss per share is computed by dividing net loss by the number of weighted-average shares outstanding during the period. Dilutive securities, including participating securities, have not been included in the computation of loss per share as the Company reported a net loss from continuing operations during all periods presented below and therefore, the impact would be anti-dilutive.

The weighted-average number of shares outstanding used in the computations of both basic and diluted loss per share were as follows (in millions):

	Successor	Predecessor
	Three Months Ended March 31, 2023	Three Months Ended April 1, 2022
Basic and diluted	13.2	84.7

The computation of diluted weighted-average shares outstanding for the three months ended March 31, 2023 (Successor) and April 1, 2022 (Predecessor) excluded approximately zero and 5.1 million shares of equity awards, respectively, because the effect would have been anti-dilutive.

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Inventories

3 Months Ended

Mar. 31, 2023

Inventory, Net [Abstract]

Inventories

6. Inventories

Inventories were comprised of the following at the end of each period: 

	Successor
	March 31, 2023		December 30, 2022
Raw materials and supplies	$	89.9	$	80.2
Work in process	523.3		552.1
Finished goods	282.2		315.3
	$	895.4	$	947.6

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Property, Plant and Equipment

3 Months Ended

Mar. 31, 2023

Property, Plant and Equipment

Property, Plant and Equipment Disclosure

7. Property, Plant and Equipment

The gross carrying amount and accumulated depreciation of property, plant and equipment were comprised of the following at the end of each period:

	Successor
	March 31, 2023		December 30, 2022
Property, plant and equipment, gross	$	492.5	$	485.0
Less: accumulated depreciation	(38.1)		(27.4)
Property, plant and equipment, net	$	454.4	$	457.6

Depreciation expense was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Depreciation expense	$	11.9	$	22.1

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Goodwill and Intangible Assets

3 Months Ended

Sep. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

8. Intangible Assets

The gross carrying amount and accumulated amortization of intangible assets were comprised of the following at the end of each period:

	Successor
	March 31, 2023				December 30, 2022
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Amortizable:
Completed technology	$	3,041.2	$	451.9	$	3,041.2	$	318.7
Non-Amortizable:
In-process research and development	121.3				121.3

Intangible asset amortization expense was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Amortization expense	$	133.2	$	155.1

The estimated aggregate amortization expense on intangible assets owned by the Company is expected to be as follows:

	Successor
Remainder of Fiscal 2023	$	376.0
Fiscal 2024	446.1
Fiscal 2025	385.1
Fiscal 2026	337.5
Fiscal 2027	284.4

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Debt

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Debt Disclosure

9. Debt

Debt was comprised of the following at the end of each period:

	Successor
	March 31, 2023						December 30, 2022
	Principal		Carrying Value		Unamortized Discount and Debt Issuance Costs		Principal		Carrying Value		Unamortized Discount and Debt Issuance Costs
Current maturities of long-term debt:
2017 Replacement Term loan due September 2027	$	34.8	$	34.8	$	—	$	34.8	$	34.8	$	—
2018 Replacement Term loan due September 2027	9.3		9.3		—		9.3		9.3		—
Total current debt	44.1		44.1		—		44.1		44.1		—
Long-term debt:
10.00% first lien senior secured notes due April 2025	495.0		478.0		—		495.0		475.9		—
10.00% second lien senior secured notes due April 2025	321.9		249.8		—		321.9		242.2		—
2017 Replacement Term loan due September 2027	1,330.6		1,186.6		—		1,339.3		1,187.3		—
2018 Replacement Term loan due September 2027	353.2		317.3		—		355.5		317.6		—
11.50% first lien senior secured notes due December 2028	650.0		650.0		19.9		650.0		650.0		20.8
10.00% second lien senior secured notes due June 2029	328.3		179.8		—		328.3		175.5		—
Total long-term debt	3,479.0		3,061.5		19.9		3,490.0		3,048.5		20.8
Total debt	$	3,523.1	$	3,105.6	$	19.9	$	3,534.1	$	3,092.6	$	20.8

Applicable interest rate

As of March 31, 2023 (Successor), the applicable interest rate and outstanding principal on the Company's debt instruments were as follows:

	Applicable Interest Rate		Outstanding Principal
Fixed-rate instruments	10.54	%	$	1,795.2
2017 Replacement Term Loan due September 2027 (1)	9.94		1,365.4
2018 Replacement Term Loan due September 2027 (1)	10.19		362.5

(1)

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Guarantees

3 Months Ended

Mar. 31, 2023

Guarantees [Abstract]

Guarantees

10. Guarantees

In disposing of assets or businesses, the Company has from time to time provided representations, warranties and indemnities to cover various risks and liabilities, including unknown damage to assets, environmental risks involved in the sale of real estate, liability to investigate and remediate environmental contamination at waste disposal sites and manufacturing facilities, and unidentified tax liabilities related to periods prior to disposition. The Company assesses the probability of potential liabilities related to such representations, warranties and indemnities and adjusts potential liabilities as a result of changes in facts and circumstances. The Company believes, given the information currently available, that the ultimate resolutions will not have a material adverse effect on its financial condition, results of operations and cash flows.

In connection with the sale of the Specialty Chemical business (formerly known as Mallinckrodt Baker) in fiscal 2010, the Company agreed to indemnify the purchaser with respect to various matters, including certain environmental, health, safety, tax and other matters. The indemnification obligations relating to certain environmental, health and safety matters have a term of 17 years from the sale, while some of the other indemnification obligations have an indefinite term. The liability relating to all of these indemnification obligations was governed by a contract that was rejected as part of Chapter 11 and is no longer a liability of the Successor Company. The Company was required to pay $30.0 million into an escrow account as collateral to the purchaser. The contract governing the escrow account was assumed in the Chapter 11 proceedings. As of March 31, 2023 (Successor) and December 30, 2022 (Successor), $19.5 million and $19.3 million remained in restricted cash, included in other long-term assets on the unaudited condensed consolidated balance sheets, respectively. As of March 31, 2023 (Successor), the Company does not expect to make future payments related to these indemnification obligations.

As of March 31, 2023 (Successor), the Company had various other letters of credit, guarantees and surety bonds totaling $29.9 million and restricted cash of $37.4 million held in segregated accounts primarily to collateralize surety bonds for the Company's environmental liabilities.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2023

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

11. Commitments and Contingencies

The Company is subject to various legal proceedings and claims, including government investigations, environmental matters, product liability matters, patent infringement claims, antitrust matters, securities class action lawsuits, personal injury claims, employment disputes, contractual and other commercial disputes, and all other legal proceedings, all in the ordinary course of business, including those described below. Although it is not feasible to predict the outcomes of these matters, the Company believes, unless otherwise indicated below, given the information currently available, that their ultimate resolution will not have a material adverse effect on its financial condition, results of operations and cash flows.

Governmental Proceedings

Acthar Gel-Related Matters

SEC Subpoena. In August 2019, the Company received a subpoena from the SEC for documents related to the Company's disclosure of its dispute with the U.S. Department of Health and Human Services ("HHS") and Centers for Medicare and Medicaid Services (together with HHS, the "Agency") concerning the base date average manufacturer price for Acthar Gel under the Medicaid Drug Rebate Program, which was also the subject of litigation that the Company filed against the Agency. The SEC issued subsequent subpoenas on January 7, 2022 and September 28, 2022, requesting additional documents from the Company.

In connection with the investigation, on January 13, 2023, the SEC staff issued Wells Notices to the Company and individuals, including certain of its current and former executive officers, who were employed during 2019 (collectively, the “Individuals”). The notices indicate that the SEC staff has made a preliminary determination to recommend that the SEC file an enforcement action against the Company that would allege violations of the federal securities laws, and against the Individuals that would allege violations of the federal securities laws and/or aiding and abetting violations of the federal securities laws. The recommendation as to the Company may involve an injunction, a cease-and-desist order and/or other appropriate relief.

The actions recommended by the SEC staff would allege, among other things, that (a) the Company improperly omitted to disclose the dispute with the Agency prior to the litigation filed by the Company in federal court on May 21, 2019, and (b) the Company’s disclosure of the civil investigative demand received from the U.S. Attorney’s Office for the District of Massachusetts in January 2019 (“Boston CID”) should have stated that the Boston CID related to the Company’s dispute with the Agency.

A Wells Notice is neither a formal charge of wrongdoing nor a final determination that the recipient has violated any law. Under the SEC procedures, a recipient of a Wells Notice has an opportunity to respond and make a submission to the SEC staff setting forth the recipient’s interests and position in regard to the subject matter of the investigation.

The Company believes that it has complied with all applicable laws and regulations, and it has provided a submission explaining the Company’s position and its belief that no enforcement action is warranted or appropriate. The Company understands that the Individuals have provided similar submissions to the SEC staff. The outcome of this matter is uncertain, and as a result, the Company is unable to estimate the potential exposure associated with this matter.

Environmental Remediation and Litigation Proceedings

The Company is involved in various stages of investigation and cleanup related to environmental remediation matters at a number of sites, including those described below. The ultimate cost of site cleanup and timing of future cash outlays is difficult to predict, given the uncertainties regarding the extent of the required cleanup, the interpretation of applicable laws and regulations and alternative cleanup methods. The Company concluded that, as of March 31, 2023 (Successor), it was probable that it would incur remediation costs in the range of $18.1 million to $48.1 million. The Company also concluded that, as of March 31, 2023 (Successor), the best estimate within this range was $36.5 million, of which $0.9 million was included in accrued and other current liabilities and the remainder was included in environmental liabilities on the unaudited condensed consolidated balance sheet as of March 31, 2023 (Successor). While it is not possible at this time to determine with certainty the ultimate outcome of these matters, the Company believes, given the information currently available, that the final resolution of all known claims, after taking into account amounts already accrued, will not have a material adverse effect on its financial condition, results of operations and cash flows.

Lower Passaic River, New Jersey. The Company and approximately 70 other companies ("Cooperating Parties Group" or "CPG") are parties to a May 2007 Administrative Order on Consent with the Environmental Protection Agency ("EPA") to perform a remedial investigation and feasibility study ("RI/FS") of the 17-mile stretch known as the Lower Passaic River Study Area (“River”). The Company's potential liability stems from former operations at Lodi and Belleville, New Jersey (the “Lodi facility” and the “Belleville facility” respectively). In April 2014, the EPA issued a revised Focused Feasibility Study ("FFS"), with remedial alternatives to address cleanup of the lower 8-mile stretch of the River. The EPA estimated the cost for the remediation alternatives ranged from $365.0 million to $3.2 billion and the EPA's preferred approach had an estimated cost of $1.7 billion. In April 2015, the CPG

presented a draft of the RI/FS of the River to the EPA that included alternative remedial actions for the entire 17-mile stretch of the River. In March 2016, the EPA issued the Record of Decision ("ROD(s)") for the lower 8 miles of the River with a slight modification on its preferred approach and a revised estimated cost of $1.38 billion. In October 2016, the EPA announced that Occidental Chemicals Corporation had entered into an agreement to develop the remedial design.

In August 2018, the EPA finalized a buyout offer of $280,600 with the Company, limited to its former Lodi facility, for the lower 8 miles of the River. In September 2021, the EPA issued the ROD for the upper 9 miles of the River selecting source control as the remedy for the upper 9 miles with an estimated cost of $441.0 million. In September 2022, the Company entered into a conditional $0.3 million Early Cash-Out Consent Decree (“CD”) with the EPA as a buyout for its portion of the upper part of the River related to its former Lodi facility; finalization of the CD is subject to the EPA approval following the public comment period that ended March 2023.

The portion of the liability related to the Belleville facility was discharged against the Company as a result of the Plan. Any reserves associated with this contingency were included in LSTC as of the Effective Date, and any related liabilities were discharged under the Bankruptcy Code.

As of March 31, 2023, the Company estimated that its remaining liability related to the River was $21.0 million, which was included within environmental liabilities on the unaudited condensed consolidated balance sheet as of March 31, 2023 (Successor). Despite the issuance of the revised FFS and the RODs for both the lower and upper River by the EPA, the RI/FS by the CPG, and the cash out settlement by the EPA, there are many uncertainties associated with the final agreed-upon remediation, potential future liabilities and the Company's allocable share of the remediation. Given those uncertainties, the amounts accrued may not be indicative of the amounts for which the Company may be ultimately responsible and will be refined as the remediation progresses.

Bankruptcy Litigation and Appeals

First Lien Noteholder Matters. The Plan proposed to reinstate the issuers' existing 10.00% First Lien Senior Secured Notes due 2025 ("Existing First Lien Notes") in an aggregate principal amount of $495.0 million and the note documents relating thereto. Certain holders of the Existing First Lien Notes and the trustee in respect thereof (collectively, the "Noteholder Parties"), objected to the proposed reinstatement, arguing, among other things, that the Company was required to pay a significant make-whole premium as a condition to reinstatement of the Existing First Lien Notes. In the course of confirming the Plan, the Bankruptcy Court overruled these objections.

On March 30, 2022, the Noteholder Parties appealed the confirmation order's approval of the reinstatement of the Existing First Lien Notes to the United States District Court for the District of Delaware. The Company and the Existing First Lien Notes Trustee reached an agreement to hold the trustee's appeal in abeyance, to be determined by the result of the holders' appeals, subject to certain conditions, which was approved by the District Court. Briefing on the merits of the Noteholder Parties' appeals was completed on July 1, 2022. On the same date, the Company moved to dismiss the Noteholder Parties' appeals as equitably moot. Briefing on the motion was completed on August 5, 2022 and supplemental declarations have been filed in the appeal. Oral argument was held on the Noteholder Parties' appeals on May 5, 2023, and the court took the matter under advisement.

At this stage, the Company is not able to reasonably estimate the expected amount or range of cost or any loss associated with these appeals. The Company will continue to vigorously defend the Plan.

Sanofi. On October 12, 2021, in the Company's bankruptcy, sanofi-aventis U.S. LLC ("Sanofi") filed a motion asking the Bankruptcy Court for an order determining that, under the Bankruptcy Code, the Company could not discharge alleged royalty obligations owed to Sanofi under an asset purchase agreement through which the Company acquired certain intellectual property from Sanofi's predecessor ("Sanofi Motion"). On November 8, 2021, the Bankruptcy Court denied the Sanofi Motion and ordered that any royalty obligations allegedly owed to Sanofi constitute prepetition unsecured claims that may be discharged under the Bankruptcy Code. On November 19, 2021, Sanofi appealed the Bankruptcy Court's ruling of the Sanofi Motion to the District Court. Briefing was completed on March 10, 2022 and the District Court affirmed on December 20, 2022, for which Sanofi filed a notice of appeal on January 17, 2023. Sanofi had also appealed the Bankruptcy Court's confirmation order, but pursuant to the terms of a settlement between Sanofi and the General Unsecured Claims Trustee appointed pursuant to the Plan, it is expected that Sanofi will dismiss its appeal of the confirmation order with prejudice in the near term.

Banks et al. v. Cotter Corporation et al. v. Mallinckrodt LLC, et al. On January 29, 2023, the named plaintiffs in Banks et al. v. Cotter Corporation et al. v. Mallinckrodt LLC, et al. No. 20-CV-1227 (E.D. Mo.) filed a motion to amend their class-action petition to add Mallinckrodt LLC as a defendant. Mallinckrodt LLC filed a motion in the Bankruptcy Court to enjoin this petition on the grounds that these alleged claims were discharged pursuant to the Plan and confirmation order. On April 11, 2023, the court held oral argument on the motion to enjoin. Both motions remain pending until the Bankruptcy Court adjudicates the motion to enjoin. Under the confirmation order, any liability Mallinckrodt LLC may have in connection with the Banks litigation was discharged upon emergence from Chapter 11, with the limited exception of liability that is indemnified by the U.S. government.

Other Matters

The Company's legal proceedings and claims are further described within the notes to the financial statements included within the Company's Annual Report on Form 10-K.

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Financial Instruments and Fair Value Measurements

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Financial Instruments and Fair Value Measurements

12. Financial Instruments and Fair Value Measurements

Fair value is defined as the exit price that would be received from the sale of an asset or paid to transfer a liability, using assumptions that market participants would use in pricing an asset or liability. The fair value guidance establishes a three-level fair value hierarchy, which maximizes the use of observable inputs and minimizes the use of unobservable inputs used in measuring fair value. The levels within the hierarchy are as follows:

Level 1— observable inputs such as quoted prices in active markets for identical assets or liabilities;

Level 2— significant other observable inputs that are observable either directly or indirectly; and

Level 3— significant unobservable inputs in which there is little or no market data, which requires the Company to develop its own assumptions.

The following tables provide a summary of the significant assets and liabilities that are measured at fair value on a recurring basis at the end of each period:

	March 31, 2023 (Successor)		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Debt and equity securities held in rabbi trusts	$	38.2	$	26.1	$	12.1	$	—
Equity securities	10.3		10.3		—		—
Interest rate cap	14.9		—		14.9		—
	$	63.4	$	36.4	$	27.0	$	—
Liabilities:
Deferred compensation liabilities	$	19.0	$	—	$	19.0	$	—
Contingent consideration liabilities	7.7		—		—		7.7
	$	26.7	$	—	$	19.0	$	7.7

	December 30, 2022 (Predecessor)		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Debt and equity securities held in rabbi trusts	$	36.6	$	24.8	$	11.8	$	—
Equity securities	25.5		25.5		—		—
	$	62.1	$	50.3	$	11.8	$	—
Liabilities:
Deferred compensation liabilities	$	26.0	$	—	$	26.0	$	—
Contingent consideration liabilities	7.3		—		—		7.3
	$	33.3	$	—	$	26.0	$	7.3

Debt and equity securities held in rabbi trusts. Debt securities held in rabbi trusts primarily consist of U.S. government and agency securities and corporate bonds. When quoted prices are available in an active market, the investments are classified as level 1. When quoted market prices for a security are not available in an active market, they are classified as level 2. Equity securities held in rabbi trusts primarily consist of U.S. common stocks, which are valued using quoted market prices reported on nationally recognized securities exchanges.

Equity securities. Equity securities consist of shares in Silence Therapeutics plc and Panbela Therapeutics, Inc. for which quoted prices are available in an active market; therefore, these investments are classified as level 1 and are valued based on quoted market prices reported on internationally recognized securities exchanges.

Interest rate cap. The Company is exposed to interest rate risk on its variable-rate debt. During the three months ended March 31, 2023, the Company entered into an interest rate cap agreement, which serves to reduce the volatility on future interest expense cash outflows. The interest rate cap agreement has a total notional value of $860.0 million with an upfront premium of $20.0 million and provides the Company with interest rate protection (i) for the period March 16, 2023 through July 19, 2023 to the extent that the one-month London Interbank Offered Rate ("LIBOR") exceeds 4.65%, and (ii) for the period July 20, 2023 through March 26, 2026 to the extent that the one-month Secured Overnight Financing Rate ("SOFR") exceeds 3.84%.

The interest rate cap agreement qualifies as a cash flow hedge. The premium paid is recognized in income on a rational basis, and changes in the fair value of the interest rate cap are recorded within accumulated other comprehensive income ("AOCI") and are subsequently reclassed into interest expense in the period when the hedged interest affects earnings. The fair value of the interest rate cap is included in other assets on the Company’s unaudited condensed consolidated balance sheet as of March 31, 2023 (Successor). The Company elected to use the income approach to value the interest rate cap derivative using observable Level 2 market expectations at the measurement date and standard valuation techniques to convert future amounts to a single present amount (discounted) reflecting current market expectations about those future amounts. Level 2 inputs for derivative valuations are limited to quoted prices for similar assets or liabilities in active markets (specifically futures contracts) and inputs other than quoted prices that are observable such as LIBOR or SOFR rate curves, futures and volatilities. Mid-market pricing is used as a practical expedient in the fair value measurements. The Company recognized an unrealized loss of $5.0 million within AOCI during the three months ended March 31, 2023 (Successor), with $0.3 million being reclassified into earnings as a component of interest expense, net. It is expected that over the next 12 months, $6.7 million of the estimated losses in AOCI will be recognized into interest expense, net. The cash payment of the $20.0 million premium and other corresponding activity related to the interest rate cap were reflected as cash flows from operating activities in the unaudited condensed consolidated statement of cash flows for the three months ended March 31, 2023 (Successor).

Deferred compensation liabilities. The Company maintains a non-qualified deferred compensation plan in the U.S., which permits eligible employees of the Company to defer a portion of their compensation. A recordkeeping account is set up for each participant and the participant chooses from a variety of funds for the deemed investment of their accounts. The recordkeeping accounts generally correspond to the funds offered in the Company's U.S. tax-qualified defined contribution retirement plan and the account balance fluctuates with the investment returns on those funds.

Contingent consideration liabilities. In accordance with the Plan and the Scheme of Arrangement, the Company will provide consideration for a contingent value right ("CVR") associated with Terlivaz® primarily in the form of the achievement of a cumulative net sales milestone. The Company assesses the likelihood and timing of making such payments at each balance sheet date. The fair value of the contingent payment was measured based on the net present value of a probability-weighted assessment. The Company determined the fair value of the Terlivaz CVR as of March 31, 2023 (Successor) and December 30, 2022 (Successor) to be $7.7 million and $7.3 million, respectively.

Financial Instruments Not Measured at Fair Value

    The following methods and assumptions were used by the Company in estimating fair values for financial instruments not measured at fair value as of March 31, 2023 (Successor) and December 30, 2022 (Successor):

•The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and the majority of other current assets and liabilities approximate fair value because of their short-term nature. The Company classifies cash on hand and deposits in banks, including commercial paper, money market accounts and other investments it may hold from time to time, with an original maturity of three months or less, as cash and cash equivalents (level 1). The fair value of restricted cash was equivalent to its carrying value of $56.9 million and $57.2 million as of March 31, 2023 (Successor) and December 30, 2022 (Successor) (level 1), respectively.

•The Company's life insurance contracts are carried at cash surrender value, which is based on the present value of future cash flows under the terms of the contracts (level 3). Significant assumptions used in determining the cash surrender value include the amount and timing of future cash flows, interest rates and mortality charges. The fair value of these contracts approximates the carrying value of $46.4 million and $46.7 million as of March 31, 2023 (Successor) and December 30, 2022 (Successor), respectively. These contracts are included in other assets on the unaudited condensed consolidated balance sheets.

•The Company's 10.00% and 11.50% first and second lien senior secured notes are classified as level 1, as quoted prices are available in an active market for these notes. Since quoted market prices for the Company's term loans are not available in an active market, they are classified as level 2 for purposes of developing an estimate of fair value.

The following table presents the carrying values and estimated fair values of the Company's debt as of the end of each period:

	Successor
	March 31, 2023				December 30, 2022
	Carrying Value		Fair Value		Carrying Value		Fair Value
Level 1:
10.00% first lien senior secured notes due April 2025	$	478.0	$	415.6	$	475.9	$	425.9
10.00% second lien senior secured notes due April 2025	249.8		222.1		242.2		216.8
11.50% first lien senior secured notes due December 2028	650.0		536.6		650.0		552.6
10.00% second lien senior secured notes due June 2029	179.8		192.0		175.5		176.7
Level 2:
2017 Replacement Term loan due September 2027	1,221.4		1,005.3		1,222.1		1,037.8
2018 Replacement Term loan due September 2027	326.6		262.6		326.9		274.8
Total Debt	$	3,105.6	$	2,634.2	$	3,092.6	$	2,684.6

Concentration of Credit and Other Risks

Financial instruments that potentially subject the Company to concentrations of credit risk primarily consist of accounts receivable. The Company generally does not require collateral from customers. A portion of the Company's accounts receivable outside the U.S. includes sales to government-owned or supported healthcare systems in several countries, which are subject to payment delays. Payment is dependent upon the financial stability and creditworthiness of those countries' national economies.

The following table shows net sales attributable to distributors that accounted for 10.0% or more of the Company's total net sales:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
FFF Enterprises, Inc.	18.8	%	*
CuraScript, Inc.	*		26.0	%

* Net sales to this distributor was less than 10.0% of the Company's total net sales for the respective periods presented above.

The following table shows accounts receivable attributable to distributors that accounted for 10.0% or more of the Company's gross accounts receivable at the end of each period:

	Successor
	March 31, 2023		December 30, 2022
AmerisourceBergen Corporation	26.1	%	23.3	%
McKesson Corporation	19.0		17.3
FFF Enterprises, Inc.	*		16.2

*Accounts receivable attributable to this distributor was less than 10.0% of total gross accounts receivable at the end of the respective period presented above.

The following table shows net sales attributable to products that accounted for 10.0% or more of the Company's total net sales:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
INOmax	19.5	%	20.2	%
Acthar Gel	19.3		26.0
Therakos	13.8		12.2
APAP	10.9		*

*Net sales attributable to this product was less than 10.0% of total net sales for the respective period presented above.

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Segment Data

3 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

Segment Data

13. Segment Data

The Company operates in two reportable segments, which are further described below:

•Specialty Brands includes innovative specialty pharmaceutical brands; and

•Specialty Generics includes niche specialty generic drugs and APIs.

Management measures and evaluates the Company's operating segments based on segment net sales and operating income. Management excludes corporate expenses from segment operating income. In addition, certain amounts that management considers to be non-recurring or non-operational are excluded from segment operating income because management and the chief operating decision maker evaluate the operating results of the segments excluding such items. These items may include, but are not limited to, depreciation and amortization, share-based compensation, net restructuring charges, non-restructuring impairment charges and separation costs. Although these amounts are excluded from segment operating income, as applicable, they are included in reported consolidated operating loss and are reflected in the reconciliations presented below.

Selected information by reportable segment was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Net sales:
Specialty Brands	$	252.0	$	339.4
Specialty Generics	172.6		151.5
Net sales	$	424.6	$	490.9
Operating income (loss):
Specialty Brands	$	32.4	$	164.8
Specialty Generics	32.8		34.4
Segment operating income	65.2		199.2
Unallocated amounts:
Corporate and unallocated expenses (1)	(14.0)		(32.8)
Depreciation and amortization	(145.1)		(177.2)
Share-based compensation	(2.6)		(1.2)
Restructuring charges, net	(1.2)		(6.8)
Separation costs (2)	(4.9)		(2.0)
Operating loss	$	(102.6)	$	(20.8)

(1)Includes administration expenses and certain compensation, legal, environmental and other costs not charged to the Company's reportable segments.

(2)Represents costs included in selling, general and administrative expenses, primarily related to professional fees and costs incurred as the Company explores potential sales of non-core assets to enable further deleveraging post-emergence.

Net sales by product family within the Company's reportable segments were as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Acthar Gel	$	82.0	$	127.7
INOmax	82.7		99.0
Therakos	58.7		59.9
Amitiza (1)	24.5		47.7
Terlivaz	2.2		—
Other	1.9		5.1
Specialty Brands	252.0		339.4
Opioids	62.2		50.0
ADHD	22.4		10.8
Addiction treatment	15.6		15.9
Other	1.8		2.8
Generics	102.0		79.5
Controlled substances	18.5		20.4
APAP	46.4		46.3
Other	5.7		5.3
API	70.6		72.0
Specialty Generics	172.6		151.5
Net sales	$	424.6	$	490.9

(1)Amitiza consists of both product net sales and royalties. Refer to Note 2 for further details on Amitiza's revenues.

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Subsequent Events

3 Months Ended

Mar. 31, 2023

Subsequent Events [Abstract]

Subsequent Events

14. Subsequent Events

Commitments and Contingencies

Certain litigation matters occurred on, or prior to, March 31, 2023 (Successor), but had subsequent updates through the issuance of this report. See further discussion in Note 11.

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Revenue from Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 2023

Disaggregation of Revenue [Line Items]

Sales Reserves Rollforward

The following table reflects activity in the Company's sales reserve accounts:

	Rebates and Chargebacks (1)		Product Returns		Other Sales Deductions		Total
Balance as of December 31, 2021 (Predecessor)	$	241.8	$	21.5	$	9.5	$	272.8
Provisions	370.8		2.4		9.7		382.9
Payments or credits	(412.0)		(4.3)		(10.0)		(426.3)
Balance as of April 1, 2022 (Predecessor)	$	200.6	$	19.6	$	9.2	$	229.4
Balance as of December 30, 2022 (Successor)	$	265.3	$	16.0	$	12.7	$	294.0
Provisions	355.6		3.2		9.5		368.3
Payments or credits	(404.3)		(4.0)		(15.0)		(423.3)
Balance as of March 31, 2023 (Successor)	$	216.6	$	15.2	$	7.2	$	239.0

Disaggregation of Revenue

Product sales transferred to customers at a point in time and over time were as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Product sales transferred at a point in time	80.2	%	79.5	%
Product sales transferred over time	19.8		20.5

The associated royalty revenue recognized was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Royalty revenue	$	3.4	$	20.0

Contract with Customer, Timing of Satisfaction of Performance Obligation and Payment

The following table includes estimated revenue from contracts extending greater than one year for certain of the Company's hospital products that are expected to be recognized in the future related to performance obligations that were unsatisfied or partially unsatisfied as of March 31, 2023 (Successor):

Remainder of Fiscal 2023	$	56.6
Fiscal 2024	37.7
Fiscal 2025	13.2
Thereafter	0.2

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Restructuring and Related Charges (Tables)

3 Months Ended

Mar. 31, 2023

Restructuring and Related Activities [Abstract]

Schedule of Restructuring and Related Charges by Segment

Net restructuring and related charges by segment were as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Specialty Generics	$	—	$	3.5
Corporate	1.9		3.3
Restructuring and related charges, net	1.9		6.8
Less: accelerated depreciation	(0.7)		—
Restructuring charges, net	$	1.2	$	6.8

Schedule of Net Restructuring and Related Charges

Net restructuring and related charges by program were comprised of the following:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
2018 Program	$	1.9	$	6.8
Less: non-cash charges, including accelerated depreciation	(0.8)		(2.1)
Total charges expected to be settled in cash	$	1.1	$	4.7

Schedule of Restructuring Reserves Reconciliation by Program

The following table summarizes cash activity for restructuring reserves for the 2018 Program, which primarily related to employee severance and benefits:

	2018 Program
Balance as of December 30, 2022 (Successor)	$	4.6
Charges from continuing operations	1.2
Changes in estimate from continuing operations	(0.1)
Cash payments	(4.2)
Balance as of March 31, 2023 (Successor)	$	1.5

Schedule of Restructuring Charges Incurred Cumulative to Date

As of March 31, 2023 (Successor), net restructuring and related charges incurred cumulative to date for the 2018 Program were as follows:

	Successor		Predecessor
Specialty Brands	$	—	$	3.1
Specialty Generics	0.8		18.5
Corporate	13.2		84.0
	$	14.0	$	105.6

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Income Taxes (Tables)

3 Months Ended

Mar. 31, 2023

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The Company's income tax expense (benefit) was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Current tax expense (benefit)	$	2.6	$	(5.0)
Deferred tax benefit	(33.4)		(0.9)
Income tax benefit	$	(30.8)	$	(5.9)

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Earnings per Share (Tables)

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Schedule of Earnings per Share

The weighted-average number of shares outstanding used in the computations of both basic and diluted loss per share were as follows (in millions):

	Successor	Predecessor
	Three Months Ended March 31, 2023	Three Months Ended April 1, 2022
Basic and diluted	13.2	84.7

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Inventories (Tables)

3 Months Ended

Mar. 31, 2023

Inventory, Net [Abstract]

Schedule of Inventories

Inventories were comprised of the following at the end of each period: 

	Successor
	March 31, 2023		December 30, 2022
Raw materials and supplies	$	89.9	$	80.2
Work in process	523.3		552.1
Finished goods	282.2		315.3
	$	895.4	$	947.6

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Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2023

Property, Plant and Equipment

Property, Plant and Equipment

The gross carrying amount and accumulated depreciation of property, plant and equipment were comprised of the following at the end of each period:

	Successor
	March 31, 2023		December 30, 2022
Property, plant and equipment, gross	$	492.5	$	485.0
Less: accumulated depreciation	(38.1)		(27.4)
Property, plant and equipment, net	$	454.4	$	457.6

Depreciation of Fixed Assets

Depreciation expense was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Depreciation expense	$	11.9	$	22.1

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Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

The gross carrying amount and accumulated amortization of intangible assets were comprised of the following at the end of each period:

	Successor
	March 31, 2023				December 30, 2022
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Amortizable:
Completed technology	$	3,041.2	$	451.9	$	3,041.2	$	318.7
Non-Amortizable:
In-process research and development	121.3				121.3

Intangible Asset Amortization Expense

Intangible asset amortization expense was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Amortization expense	$	133.2	$	155.1

Schedule of Future Amortization Expense, Intangible Assets

The estimated aggregate amortization expense on intangible assets owned by the Company is expected to be as follows:

	Successor
Remainder of Fiscal 2023	$	376.0
Fiscal 2024	446.1
Fiscal 2025	385.1
Fiscal 2026	337.5
Fiscal 2027	284.4

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Debt (Tables)

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Schedule of Debt including Capital Lease Obligation

Debt was comprised of the following at the end of each period:

	Successor
	March 31, 2023						December 30, 2022
	Principal		Carrying Value		Unamortized Discount and Debt Issuance Costs		Principal		Carrying Value		Unamortized Discount and Debt Issuance Costs
Current maturities of long-term debt:
2017 Replacement Term loan due September 2027	$	34.8	$	34.8	$	—	$	34.8	$	34.8	$	—
2018 Replacement Term loan due September 2027	9.3		9.3		—		9.3		9.3		—
Total current debt	44.1		44.1		—		44.1		44.1		—
Long-term debt:
10.00% first lien senior secured notes due April 2025	495.0		478.0		—		495.0		475.9		—
10.00% second lien senior secured notes due April 2025	321.9		249.8		—		321.9		242.2		—
2017 Replacement Term loan due September 2027	1,330.6		1,186.6		—		1,339.3		1,187.3		—
2018 Replacement Term loan due September 2027	353.2		317.3		—		355.5		317.6		—
11.50% first lien senior secured notes due December 2028	650.0		650.0		19.9		650.0		650.0		20.8
10.00% second lien senior secured notes due June 2029	328.3		179.8		—		328.3		175.5		—
Total long-term debt	3,479.0		3,061.5		19.9		3,490.0		3,048.5		20.8
Total debt	$	3,523.1	$	3,105.6	$	19.9	$	3,534.1	$	3,092.6	$	20.8

Schedule of Applicable Interest Rate on Variable-rate Debt

As of March 31, 2023 (Successor), the applicable interest rate and outstanding principal on the Company's debt instruments were as follows:

	Applicable Interest Rate		Outstanding Principal
Fixed-rate instruments	10.54	%	$	1,795.2
2017 Replacement Term Loan due September 2027 (1)	9.94		1,365.4
2018 Replacement Term Loan due September 2027 (1)	10.19		362.5

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Financial Instruments and Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Assets and Liabilities Measured on a Recurring Basis

The following tables provide a summary of the significant assets and liabilities that are measured at fair value on a recurring basis at the end of each period:

	March 31, 2023 (Successor)		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Debt and equity securities held in rabbi trusts	$	38.2	$	26.1	$	12.1	$	—
Equity securities	10.3		10.3		—		—
Interest rate cap	14.9		—		14.9		—
	$	63.4	$	36.4	$	27.0	$	—
Liabilities:
Deferred compensation liabilities	$	19.0	$	—	$	19.0	$	—
Contingent consideration liabilities	7.7		—		—		7.7
	$	26.7	$	—	$	19.0	$	7.7

	December 30, 2022 (Predecessor)		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Debt and equity securities held in rabbi trusts	$	36.6	$	24.8	$	11.8	$	—
Equity securities	25.5		25.5		—		—
	$	62.1	$	50.3	$	11.8	$	—
Liabilities:
Deferred compensation liabilities	$	26.0	$	—	$	26.0	$	—
Contingent consideration liabilities	7.3		—		—		7.3
	$	33.3	$	—	$	26.0	$	7.3

Schedule of Carrying Amount and Fair Value of Long-term Debt

The following table presents the carrying values and estimated fair values of the Company's debt as of the end of each period:

	Successor
	March 31, 2023				December 30, 2022
	Carrying Value		Fair Value		Carrying Value		Fair Value
Level 1:
10.00% first lien senior secured notes due April 2025	$	478.0	$	415.6	$	475.9	$	425.9
10.00% second lien senior secured notes due April 2025	249.8		222.1		242.2		216.8
11.50% first lien senior secured notes due December 2028	650.0		536.6		650.0		552.6
10.00% second lien senior secured notes due June 2029	179.8		192.0		175.5		176.7
Level 2:
2017 Replacement Term loan due September 2027	1,221.4		1,005.3		1,222.1		1,037.8
2018 Replacement Term loan due September 2027	326.6		262.6		326.9		274.8
Total Debt	$	3,105.6	$	2,634.2	$	3,092.6	$	2,684.6

Schedules of Concentration of Risk

The following table shows net sales attributable to distributors that accounted for 10.0% or more of the Company's total net sales:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
FFF Enterprises, Inc.	18.8	%	*
CuraScript, Inc.	*		26.0	%

* Net sales to this distributor was less than 10.0% of the Company's total net sales for the respective periods presented above.

The following table shows accounts receivable attributable to distributors that accounted for 10.0% or more of the Company's gross accounts receivable at the end of each period:

	Successor
	March 31, 2023		December 30, 2022
AmerisourceBergen Corporation	26.1	%	23.3	%
McKesson Corporation	19.0		17.3
FFF Enterprises, Inc.	*		16.2

*Accounts receivable attributable to this distributor was less than 10.0% of total gross accounts receivable at the end of the respective period presented above.

The following table shows net sales attributable to products that accounted for 10.0% or more of the Company's total net sales:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
INOmax	19.5	%	20.2	%
Acthar Gel	19.3		26.0
Therakos	13.8		12.2
APAP	10.9		*

*Net sales attributable to this product was less than 10.0% of total net sales for the respective period presented above.

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Segment Data (Tables)

3 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

Schedule of Segment Reporting Information by Reportable Segment

Selected information by reportable segment was as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Net sales:
Specialty Brands	$	252.0	$	339.4
Specialty Generics	172.6		151.5
Net sales	$	424.6	$	490.9
Operating income (loss):
Specialty Brands	$	32.4	$	164.8
Specialty Generics	32.8		34.4
Segment operating income	65.2		199.2
Unallocated amounts:
Corporate and unallocated expenses (1)	(14.0)		(32.8)
Depreciation and amortization	(145.1)		(177.2)
Share-based compensation	(2.6)		(1.2)
Restructuring charges, net	(1.2)		(6.8)
Separation costs (2)	(4.9)		(2.0)
Operating loss	$	(102.6)	$	(20.8)

(1)Includes administration expenses and certain compensation, legal, environmental and other costs not charged to the Company's reportable segments.

(2)Represents costs included in selling, general and administrative expenses, primarily related to professional fees and costs incurred as the Company explores potential sales of non-core assets to enable further deleveraging post-emergence.

Schedule of Net Sales from External Customers by Products

Net sales by product family within the Company's reportable segments were as follows:

	Successor		Predecessor
	Three Months Ended March 31, 2023		Three Months Ended April 1, 2022
Acthar Gel	$	82.0	$	127.7
INOmax	82.7		99.0
Therakos	58.7		59.9
Amitiza (1)	24.5		47.7
Terlivaz	2.2		—
Other	1.9		5.1
Specialty Brands	252.0		339.4
Opioids	62.2		50.0
ADHD	22.4		10.8
Addiction treatment	15.6		15.9
Other	1.8		2.8
Generics	102.0		79.5
Controlled substances	18.5		20.4
APAP	46.4		46.3
Other	5.7		5.3
API	70.6		72.0
Specialty Generics	172.6		151.5
Net sales	$	424.6	$	490.9

(1)Amitiza consists of both product net sales and royalties. Refer to Note 2 for further details on Amitiza's revenues.

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Background and Basis of Presentation Background and Basis of Presentation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Schedule of Basis of Preperation [Line Items]
Cash Paid, Reorganization items	$ 9.4	$ 79.1

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Revenue from Contracts with Customers Future Performance Obligations (Details) $ in Millions	Mar. 31, 2023 USD ($)
Remainder of Fiscal 2023
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 56.6
Fiscal 2024
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	37.7
Fiscal 2025
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	13.2
Thereafter
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 0.2

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Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022	Dec. 30, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue Reserves	$ 239.0	$ 229.4	$ 294.0	$ 272.8
Revenue Reserve Provision	368.3	382.9
Revenue Reserve Payments or Credits	(423.3)	(426.3)
Net sales	424.6	$ 490.9
Accrued Medicaid	58.9		89.3
Accrued rebates	$ 44.6		55.3
Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	80.20%	79.50%
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	19.80%	20.50%
Royalty [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 3.4	$ 20.0
Rebates and Chargebacks [Member]
Disaggregation of Revenue [Line Items]
Revenue Reserves	216.6	200.6	265.3	241.8
Revenue Reserve Provision	355.6	370.8
Revenue Reserve Payments or Credits	(404.3)	(412.0)
Allowance for Sales Returns [Member]
Disaggregation of Revenue [Line Items]
Revenue Reserves	15.2	19.6	16.0	21.5
Revenue Reserve Provision	3.2	2.4
Revenue Reserve Payments or Credits	(4.0)	(4.3)
Other Sales Deductions [Member]
Disaggregation of Revenue [Line Items]
Revenue Reserves	7.2	9.2	$ 12.7	$ 9.5
Revenue Reserve Provision	9.5	9.7
Revenue Reserve Payments or Credits	$ (15.0)	$ (10.0)

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Restructuring and Related Charges (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022	Dec. 01, 2021	Feb. 01, 2018
Restructuring Cost and Reserve
Restructuring charges, net	$ 1.2	$ 6.8
Restructuring Fiscal 2018 Plan | Minimum
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost				$ 100.0
Restructuring Fiscal 2018 Plan | Maximum
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost				$ 125.0
Restructuring Fiscal 2021 Plan | Minimum
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost			$ 50.0
Restructuring Fiscal 2021 Plan | Maximum
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost			$ 100.0

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Restructuring and Related Charges (Schedule of Restructuring and Related Charges by Segment) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Restructuring Cost and Reserve
Restructuring and related charges, net	$ 1.9	$ 6.8
Restructuring and Related Cost, Accelerated Depreciation	(0.7)	0.0
Restructuring charges, net	1.2	6.8
Specialty Generics
Restructuring Cost and Reserve
Restructuring and related charges, net	0.0	3.5
Corporate
Restructuring Cost and Reserve
Restructuring and related charges, net	$ 1.9	$ 3.3

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Restructuring and Related Charges (Schedule of Net Restructuring and Related Charges) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Restructuring Cost and Reserve
Restructuring and related charges, net	$ 1.9	$ 6.8
Restructuring and Related Costs, Non-cash Charges, Including Accelerated Depreciation	(0.8)	(2.1)
Total charges expected to be settled in cash	1.1	4.7
Restructuring Fiscal 2018 Plan
Restructuring Cost and Reserve
Restructuring and related charges, net	$ 1.9	$ 6.8

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Restructuring and Related Charges (Schedule of Restructuring Reserves by Type of Cost) (Details) - Continuing Operations - Restructuring Fiscal 2018 Plan $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 4.6
Charges from continuing operations	1.2
Changes in estimate from continuing operations	(0.1)
Cash payments	(4.2)
Ending Balance	$ 1.5

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Restructuring and Related Charges (Schedule of Restructuring Charges Incurred Cumulative to Date) (Details) - Restructuring Fiscal 2018 Plan - USD ($) $ in Millions	Mar. 31, 2023	Jun. 16, 2022
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	$ 14.0	$ 105.6
Specialty Brands
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	0.0	3.1
Specialty Generics
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	0.8	18.5
Corporate
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	$ 13.2	$ 84.0

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022	Dec. 30, 2022
Income Taxes [Line Items]
Income tax benefit	$ (30.8)	$ (5.9)
Effective tax rate	11.00%	4.70%
Current Income Tax Expense (Benefit)	$ 2.6	$ (5.0)
Deferred Income Tax Expense (Benefit)	(33.4)	(0.9)
Unrecognized tax benefits	24.8
Increase (Decrease) Tax Expense (Benefit), Change in Operating Income	27.4	4.8
Increase (Decrease), Tax Expense (Benefit), CARES Act	(1.3)	(0.8)
Increase (Decrease), Income Tax Expense (Benefit), Separation Costs, Reorganization Items, and Restructuring Charges	2.1	1.9
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0.0	0.6
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(280.1)	(126.1)
Proceeds from Income Tax Refunds	136.3
Interest accrued on unrecognized tax benefits	3.1		$ 2.8
Income Taxes Paid		$ 2.7
CARES Act [Member]
Income Taxes [Line Items]
Proceeds from Income Tax Refunds	139.3
Operational activity
Income Taxes [Line Items]
Proceeds from Income Tax Refunds	$ 3.0

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Earnings per Share (Details) - shares shares in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Earnings Per Share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0.0	5.1
Weighted-average shares outstanding - basic (in shares)	13.2	84.7
Weighted-average shares outstanding - diluted (in shares)	13.2	84.7

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Inventories (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 30, 2022
Raw materials and supplies	$ 89.9	$ 80.2
Work in process	523.3	552.1
Finished goods	282.2	315.3
Inventory, Net, Total	$ 895.4	$ 947.6

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Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 30, 2022
Property, Plant and Equipment
Property, plant and equipment, gross	$ 492.5	$ 485.0
Less: accumulated depreciation	(38.1)	(27.4)
Property, plant and equipment, net	$ 454.4	$ 457.6

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Property, Plant and Equipment Depreciation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Property, Plant and Equipment
Depreciation	$ 11.9	$ 22.1
Depreciation	$ 11.9	$ 22.1

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Goodwill and Intangible Assets (Schedule Of Intangible Assets) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022	Dec. 30, 2022
Schedule of Intangible Asset by Major Class [Line Items]
Intangible assets, net	$ 2,710.6		$ 2,843.8
Amortization of Intangible Assets	$ 133.2	$ 155.1
Loss from continuing operations	$ (18.93)	$ (1.42)
In-process Research and Development
Schedule of Intangible Asset by Major Class [Line Items]
Non-Amortizable intangible assets, gross	$ 121.3		121.3
Completed Technology
Schedule of Intangible Asset by Major Class [Line Items]
Amortizable intangible assets, gross	3,041.2		3,041.2
Accumulated amortization	$ 451.9		$ 318.7

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Goodwill and Intangible Assets (Schedule of Intangible Asset Amortization Expense) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 133.2	$ 155.1

XML

Goodwill and Intangible Assets (Schedule of Future Amortization Expense, Intangible Assets) (Details) $ in Millions	Mar. 31, 2023 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of Fiscal 2023	$ 376.0
Fiscal 2024	446.1
Fiscal 2025	385.1
Fiscal 2026	337.5
Fiscal 2027	$ 284.4

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Debt (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 30, 2022	Jun. 16, 2022
Current maturities of long-term debt
Debt Issuance Costs, Current, Net	$ 0.0	$ 0.0
Long-term Debt, Current Maturities	44.1	44.1
Long-term debt
Total Debt Issuance Costs	19.9	20.8
Total Debt	3,105.6	3,092.6
Debt Instrument, Face Amount	3,523.1	3,534.1
Long-term Debt	3,061.5	3,048.5
Debt Issuance Costs	19.9	20.8
Debt Instrument, Face Amount, Current Maturity	44.1	44.1
Debt Instrument, Face Amount, Noncurrent Maturity	3,479.0	3,490.0
10.00% Second Lien Senior Notes
Long-term debt
Long-term Debt	249.8	242.2
Debt Issuance Costs	0.0	0.0
Debt Instrument, Face Amount, Noncurrent Maturity	321.9	321.9
10.00% First Lien Senior Notes
Long-term debt
Debt Instrument, Face Amount			$ 495.0
Long-term Debt	478.0	475.9
Debt Issuance Costs	0.0	0.0
Debt Instrument, Face Amount, Noncurrent Maturity	495.0	495.0
2017 Replacement Term Loan
Current maturities of long-term debt
Debt Issuance Costs, Current, Net	0.0	0.0
Long-term Debt, Current Maturities	34.8	34.8
Long-term debt
Total Debt	1,221.4	1,222.1
Debt Instrument, Face Amount	1,365.4
Long-term Debt	1,186.6	1,187.3
Debt Issuance Costs	0.0	0.0
Debt Instrument, Face Amount, Current Maturity	34.8	34.8
Debt Instrument, Face Amount, Noncurrent Maturity	1,330.6	1,339.3
2018 Replacement Term Loan
Current maturities of long-term debt
Debt Issuance Costs, Current, Net	0.0	0.0
Long-term Debt, Current Maturities	9.3	9.3
Long-term debt
Total Debt	326.6	326.9
Debt Instrument, Face Amount	362.5
Long-term Debt	317.3	317.6
Debt Issuance Costs	0.0	0.0
Debt Instrument, Face Amount, Current Maturity	9.3	9.3
Debt Instrument, Face Amount, Noncurrent Maturity	353.2	355.5
Eleven Point Five Percent First Lien Senior Secured Notes
Long-term debt
Long-term Debt	650.0	650.0
Debt Issuance Costs	19.9	20.8
Debt Instrument, Face Amount, Noncurrent Maturity	650.0	650.0
Ten Point Zero Percent Second Lien Notes due 2029
Long-term debt
Long-term Debt	179.8	175.5
Debt Issuance Costs	0.0	0.0
Debt Instrument, Face Amount, Noncurrent Maturity	$ 328.3	$ 328.3

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Debt (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 30, 2022	Jun. 16, 2022
Debt Instrument
Debt Instrument, Face Amount	$ 3,523.1	$ 3,534.1
10.00% First Lien Senior Notes
Debt Instrument
Debt Instrument, Face Amount			$ 495.0
2017 Replacement Term Loan
Debt Instrument
Debt Instrument, Face Amount	1,365.4
2018 Replacement Term Loan
Debt Instrument
Debt Instrument, Face Amount	$ 362.5

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Debt (Schedule of Applicable Interest Rates on Variable-rate Debt) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 30, 2022
Schedule of Applicable Interest Rate on Variable-rate Debt [Line Items]
Total Debt	$ 3,105.6	$ 3,092.6
Debt Instrument, Face Amount	$ 3,523.1	3,534.1
Fixed-rate instruments
Schedule of Applicable Interest Rate on Variable-rate Debt [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	10.54%
Total Debt	$ 1,795.2
2017 Replacement Term Loan
Schedule of Applicable Interest Rate on Variable-rate Debt [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	9.94%
Total Debt	$ 1,221.4	1,222.1
Debt Instrument, Face Amount	$ 1,365.4
2018 Replacement Term Loan
Schedule of Applicable Interest Rate on Variable-rate Debt [Line Items]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	10.19%
Total Debt	$ 326.6	$ 326.9
Debt Instrument, Face Amount	$ 362.5

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Guarantees (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 30, 2022
Others
Guarantor Obligations [Line Items]
Maximum future payments	$ 29.9
Asset Pledged as Collateral [Member]
Guarantor Obligations [Line Items]
Restricted Cash	37.4
Mallinckrodt Baker | Indemnification Agreement
Guarantor Obligations [Line Items]
Escrow Deposit	30.0
Mallinckrodt Baker | Indemnification Agreement | Other current and non-current assets
Guarantor Obligations [Line Items]
Escrow Deposit	$ 19.5	$ 19.3

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Commitments and Contingencies (Narrative) (Details)	May 01, 2007 Defendent	Mar. 31, 2023 USD ($)	Dec. 30, 2022 USD ($)	Sep. 09, 2022 USD ($)	Jun. 16, 2022 USD ($)	Sep. 28, 2021 USD ($)	Sep. 27, 2019 USD ($)	Aug. 07, 2018 USD ($)	Apr. 11, 2014 USD ($)
Loss Contingencies [Line Items]
Environmental liabilities		$ 36,500,000
Environmental liabilities, current		900,000
Environmental liabilities		35,600,000	$ 35,800,000
Debt Instrument, Face Amount		3,523,100,000	$ 3,534,100,000
Lower Passaic River, New Jersey
Loss Contingencies [Line Items]
Loss Contingency, Number of Defendants | Defendent	70
Lower Passaic River, New Jersey
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss							$ 1,380,000,000		$ 1,700,000,000
Loss Contingency, Settlement Agreement, Amount				$ 300,000				$ 280,600
Upper 9 Miles, Lower Passaic River, New Jersey
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss		21,000,000				$ 441,000,000
Minimum
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss		18,100,000
Minimum | Lower Passaic River, New Jersey
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss									365,000,000
Maximum
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss		$ 48,100,000
Maximum | Lower Passaic River, New Jersey
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss									$ 3,200,000,000
10.00% First Lien Senior Notes
Loss Contingencies [Line Items]
Debt Instrument, Face Amount					$ 495,000,000

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Financial Instruments and Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 13, 2023	Dec. 30, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative, Notional Amount		$ 860.0
Derivative, Interest Rate Cap, Premium	$ 20.0
Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), Reclassification, before Tax	0.3
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)	5.0
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	6.7
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative, Cap Interest Rate		3.84%
London Interbank Offered Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative, Cap Interest Rate		4.65%
Level 3 | Other current and non-current assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash surrender value of life insurance	46.4		$ 46.7
Indemnification Agreement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Restricted Cash and Cash Equivalents	$ 56.9		$ 57.2

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Financial Instruments and Fair Value Measurements (Schedule of Fair Value of Assets and Liabilities Measured on a Recurring Basis) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 30, 2022
Assets:
Other Assets, Fair Value Disclosure	$ 10.3	$ 25.5
Assets, Fair Value Disclosure	63.4	62.1
Liabilities:
Cash Flow Hedge Derivative Instrument Assets at Fair Value	14.9
Level 1 | Indemnification Agreement
Liabilities:
Restricted Cash and Cash Equivalents	56.9	57.2
Recurring
Assets:
Rabbi Trust Investments, Fair Value Disclosure	38.2	36.6
Liabilities:
Deferred Compensation Liability, Fair Value	19.0	26.0
Contingent consideration and acquired contingent liabilities	7.7	7.3
Total liabilities at fair value	26.7	33.3
Recurring | Level 1
Assets:
Rabbi Trust Investments, Fair Value Disclosure	26.1	24.8
Other Assets, Fair Value Disclosure	10.3	25.5
Assets, Fair Value Disclosure	36.4	50.3
Liabilities:
Deferred Compensation Liability, Fair Value	0.0	0.0
Contingent consideration and acquired contingent liabilities	0.0	0.0
Total liabilities at fair value	0.0	0.0
Cash Flow Hedge Derivative Instrument Assets at Fair Value	0.0
Recurring | Level 2
Assets:
Rabbi Trust Investments, Fair Value Disclosure	12.1	11.8
Other Assets, Fair Value Disclosure	0.0	0.0
Assets, Fair Value Disclosure	27.0	11.8
Liabilities:
Deferred Compensation Liability, Fair Value	19.0	26.0
Contingent consideration and acquired contingent liabilities	0.0	0.0
Total liabilities at fair value	19.0	26.0
Cash Flow Hedge Derivative Instrument Assets at Fair Value	14.9
Recurring | Level 3
Assets:
Rabbi Trust Investments, Fair Value Disclosure	0.0	0.0
Other Assets, Fair Value Disclosure	0.0	0.0
Assets, Fair Value Disclosure	0.0	0.0
Liabilities:
Deferred Compensation Liability, Fair Value	0.0	0.0
Contingent consideration and acquired contingent liabilities	7.7	7.3
Total liabilities at fair value	7.7	$ 7.3
Cash Flow Hedge Derivative Instrument Assets at Fair Value	$ 0.0

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Financial Instruments and Fair Value Measurements (Schedule of Carrying Amount and Fair Value of Long-term Debt) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 30, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term Debt, Current Maturities	$ 44.1	$ 44.1
Total debt, fair value	2,634.2	2,684.6
Long-term Debt	3,061.5	3,048.5
Total Debt	3,105.6	3,092.6
10.00% Second Lien Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total debt, fair value	222.1	216.8
Long-term Debt	249.8	242.2
10.00% First Lien Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total debt, fair value	415.6	425.9
Long-term Debt	478.0	475.9
Eleven Point Five Percent First Lien Senior Secured Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total debt, fair value	536.6	552.6
Long-term Debt	650.0	650.0
Ten Point Zero Percent Second Lien Notes due 2029
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Total debt, fair value	192.0	176.7
Long-term Debt	179.8	175.5
2017 Replacement Term Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term Debt, Current Maturities	34.8	34.8
Total debt, fair value	1,005.3	1,037.8
Long-term Debt	1,186.6	1,187.3
Total Debt	1,221.4	1,222.1
2018 Replacement Term Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term Debt, Current Maturities	9.3	9.3
Total debt, fair value	262.6	274.8
Long-term Debt	317.3	317.6
Total Debt	$ 326.6	$ 326.9

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Financial Instruments and Fair Value Measurements (Schedules of Concentration of Risk) (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Apr. 01, 2022	Dec. 30, 2022
Distributor Concentration Risk | Revenue from Contract with Customer Benchmark [Member] | CuraScript, Inc
Concentration Risk
Concentration Risk, Percentage		26.00%
Distributor Concentration Risk | Revenue from Contract with Customer Benchmark [Member] | FFF Enterprises, Inc.
Concentration Risk
Concentration Risk, Percentage	18.80%
Distributor Concentration Risk | Accounts Receivable Attributable to Distributors | Amerisource Bergen Corporation [Member]
Concentration Risk
Concentration Risk, Percentage	26.10%		23.30%
Distributor Concentration Risk | Accounts Receivable Attributable to Distributors | McKesson Corporation [Member]
Concentration Risk
Concentration Risk, Percentage	19.00%		17.30%
Distributor Concentration Risk | Accounts Receivable Attributable to Distributors | FFF Enterprises, Inc.
Concentration Risk
Concentration Risk, Percentage			16.20%
Product Concentration Risk | Net Sales Attributable to Products | Acthar
Concentration Risk
Concentration Risk, Percentage	19.30%	26.00%
Product Concentration Risk | Net Sales Attributable to Products | Inomax
Concentration Risk
Concentration Risk, Percentage	19.50%	20.20%
Product Concentration Risk | Net Sales Attributable to Products | Therakos [Member]
Concentration Risk
Concentration Risk, Percentage	13.80%	12.20%
Product Concentration Risk | Net Sales Attributable to Products | APAP
Concentration Risk
Concentration Risk, Percentage	10.90%

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Segment Data (Schedule of Segment Reporting Information by Business Segment) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Net sales	$ 424.6	$ 490.9
Operating Income (Loss)	(102.6)	(20.8)
Depreciation and amortization	(133.2)	(155.1)
Employee Benefits and Share-based Compensation	(2.6)	(1.2)
Restructuring and related charges, net	(1.9)	(6.8)
Specialty Generics
Net sales	172.6	151.5
Restructuring and related charges, net	0.0	(3.5)
Corporate, Non-Segment
Corporate and unallocated expenses	(14.0)	(32.8)	[1]
Depreciation and amortization	(145.1)	(177.2)
Restructuring and related charges, net	(1.2)	(6.8)
Separation Costs	(4.9)	(2.0)	[2]
Operating Segments
Operating Income (Loss)	65.2	199.2
Operating Segments | Specialty Brands
Net sales	252.0	339.4
Operating Income (Loss)	32.4	164.8
Operating Segments | Specialty Generics
Net sales	172.6	151.5
Operating Income (Loss)	$ 32.8	$ 34.4

[1] Includes administration expenses and certain compensation, legal, environmental and other costs not charged to the Company's reportable segments.

[2] Represents costs included in selling, general and administrative expenses, primarily related to professional fees and costs incurred as the Company explores potential sales of non-core assets to enable further deleveraging post-emergence.

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Segment Data (Schedule of Net Sales from External Customers by Products) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Segment Reporting Information
Net sales	$ 424.6	$ 490.9
Specialty Brands | Operating Segments
Segment Reporting Information
Net sales	252.0	339.4
Specialty Generics
Segment Reporting Information
Net sales	172.6	151.5
Specialty Generics | Operating Segments
Segment Reporting Information
Net sales	172.6	151.5
Acthar | Specialty Brands
Segment Reporting Information
Net sales	82.0	127.7
Inomax | Specialty Brands
Segment Reporting Information
Net sales	82.7	99.0
Therakos immunotherapy | Specialty Brands
Segment Reporting Information
Net sales	58.7	59.9
Amitiza [Member] | Specialty Brands
Segment Reporting Information
Net sales	24.5	47.7
Other | Specialty Brands
Segment Reporting Information
Net sales	1.9	5.1
Opioids | Specialty Generics
Segment Reporting Information
Net sales	62.2	50.0
ADHD | Specialty Generics
Segment Reporting Information
Net sales	22.4	10.8
Addiction Treatment | Specialty Generics
Segment Reporting Information
Net sales	15.6	15.9
Other Generics | Specialty Generics
Segment Reporting Information
Net sales	1.8	2.8
Generics | Specialty Generics
Segment Reporting Information
Net sales	102.0	79.5
Controlled substances | Specialty Generics
Segment Reporting Information
Net sales	18.5	20.4
APAP | Specialty Generics
Segment Reporting Information
Net sales	46.4	46.3
Other API | Specialty Generics
Segment Reporting Information
Net sales	5.7	5.3
API | Specialty Generics
Segment Reporting Information
Net sales	70.6	72.0
Terlivaz | Specialty Brands
Segment Reporting Information
Net sales	$ 2.2	$ 0.0