UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K/A

(Amendment No. 1)

(Mark One)

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

For the fiscal year ended December 31, 2020

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 No. 001-38359

Adicet Bio, Inc.

(Exact name of registrant as specified in its charter)

Delaware	81-3305277
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

200 Clarendon Street, Floor 6

Boston, MA 02116

(857) 315-5528

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

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

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.0001 per share	ACET	The Nasdaq Global Market

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

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. ☐ Yes ☒ No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. ☐ Yes ☒ No

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, 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	☐
Non-accelerated filer	☒	Smaller reporting company	☒
		Emerging growth 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 has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐

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

As of June 30, 2020, the aggregate market value of the registrant’s voting and non-voting common stock held by non-affiliates was approximately $40.0 million based on a closing price of $15.05 per share as quoted by The Nasdaq Global Market as of such date. In determining the market value of non-affiliate common stock, shares of the registrant’s common stock beneficially owned by officers, directors and affiliates have been excluded. This determination of affiliate status is not necessarily a conclusive determination for other purposes.

As of March 10, 2021, there were 31,780,347 shares of common stock, $0.0001 par value per share, outstanding.

EXPLANATORY NOTE

This Amendment No. 1 on Form 10-K/A (the “Amendment”) amends the Annual Report on Form 10-K of Adicet Bio, Inc. (the “Company”) on Form 10-K for the fiscal year ended December 31, 2020, as filed with the Securities and Exchange Commission (the “SEC”) on March 11, 2021 (the “Form 10-K”).

This Amendment is being filed solely to replace the Consent of Independent Registered Public Accounting Firm (the “PWC Consent”) of PricewaterhouseCoopers LLP (“PWC”) included in the Form 10-K as Exhibit 23.2 with the correct PWC Consent. Due to an administrative oversight, an incorrect version of the PWC Consent was inadvertently included in the Form 10-K. The Company possessed a correct, manually signed copy of the PWC Consent from PWC when the Form 10-K was filed with the SEC.

This Amendment consists solely of the preceding cover page, this explanatory note, the information required by Item 15 of Form 10-K, a signature page, a replacement PWC Consent and new certifications pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 as required by Rule 12b-15 of the Securities Exchange Act of 1934, as amended. Except as described in this Explanatory Note, this Amendment does not modify, amend, or update any of the financial information or any other information set forth in the Form 10-K, and this Amendment does not reflect events that occurred subsequent to March 31, 2021.

Item 15. Exhibits and Financial Statement Schedules.

(1) Financial Statements. The following Report and Consolidated Financial Statements of the Company were included in the Form 10-K:

• Report of Independent Registered Public Accounting Firm

• Consolidated Balance Sheets

• Consolidated Statements of Operations and Comprehensive Loss

• Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders’ Equity (Deficit)

• Consolidated Statements of Cash Flows

• Notes to Consolidated Financial Statements

(2) Financial Statement Schedules: All financial statement schedules have been omitted because they are not applicable, not required or the information required is shown in the financial statements or the notes thereto.

(3) Exhibits: The exhibits listed in the accompanying index to exhibits are filed or incorporated by reference as part of this Amendment.

EXHIBIT INDEX

Exhibit Number	Description of Exhibit
3.1	Third Amended and Restated Certificate of Incorporation of the Registrant (as currently in effect) (incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on January 30, 2018).
3.2	Certificate of Amendment of Third Amended and Restated Certificate of Incorporation Of resTORbio, Inc. related to the Reverse Stock Split, dated September 15, 2020 (incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 16, 2020).
3.3	Certificate of Amendment of Third Amended and Restated Certificate of Incorporation Of resTORbio, Inc. related to the Name Change, dated September 15, 2020 (incorporated by reference to Exhibit 3.2 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 16, 2020).
3.4	Amended and Restated Bylaws of the Registrant (as currently in effect) (incorporated by reference to Exhibit 3.2 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on January 30, 2018).
4.1	Description of Securities (incorporated by reference to Exhibit 4.3 to the Registrant’s Annual Report on Form 10-K (File No. 001-38359) filed with the SEC on March 12, 2020).
4.2	Amended and Restated Investors’ Rights Agreement, dated as of November 29, 2017, among the Registrant and the other parties thereto (incorporated by reference to Exhibit 4.2 to our Registration Statement on Form S-1 (File No. 333-222373) filed with the SEC on December 29, 2017).
10.1	Escrow Agreement, dated as of September 15, 2020 by and among resTORbio, Inc. and the investors listed on the Schedule of Investors attached thereto. (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 16, 2020).
10.2+	Contingent Value Rights Agreement, dated as of September 15, 2020 by and among resTORbio, Inc., Computershare Inc. and Computershare Trust Company, N.A. (incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 16, 2020).
10.3	Second Amendment to Loan and Security Agreement, dated as of September 14, 2020, by and between Pacific West Bank and Adicet Therapeutics, Inc. (incorporated by reference to Exhibit 10.3 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 16, 2020).
10.4	Third Amendment to Loan and Security Agreement, dated as of September 15, 2020, by and between Pacific West Bank and Adicet Therapeutics, Inc. (incorporated by reference to Exhibit 10.4 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 16, 2020).
10.5	Form of Warrant to Purchase Common Stock issued to Beech Hill Securities, dated September 15, 2020 (incorporated by reference to Exhibit 10.5 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 16, 2020).
10.6	Warrant to Purchase Common Stock issued to PacWest Bancorp, dated September 15, 2020 (incorporated by reference to Exhibit 10.6 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 16, 2020).
10.7	Unconditional Secured Guaranty, dated September 15, 2020 (incorporated by reference to Exhibit 10.7 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 16, 2020).
10.8	Amendment No. 1 to Loan and Security Agreement, dated as of July 8, 2020, between Adicet Therapeutics, Inc. and Pacific Western Bank (incorporated by reference to Exhibit 10.32 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 16, 2020).
10.9#	First Amendment to the Adicet Bio, Inc. 2018 Stock Option and Incentive Plan (incorporated by reference to Exhibit 10.33 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 16, 2020).

10.10#		Employment Agreement, dated as of September 15, 2020, by and between the Company and Chen Schor (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 18, 2020).
10.11#		Employment Agreement, dated as of September 15, 2020, by and between the Company and Carrie Krehlik (incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 18, 2020).
10.12#		Employment Agreement, dated as of September 15, 2020, by and between the Company and Francesco Galimi (incorporated by reference to Exhibit 10.3 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 18, 2020).
10.13#		Employment Agreement, dated as of September 15, 2020, by and between the Company and Lloyd Klickstein (incorporated by reference to Exhibit 10.4 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 18, 2020).
10.14#		Employment Agreement, dated as of September 15, 2020, by and between the Company and Nick Harvey (incorporated by reference to Exhibit 10.5 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on September 18, 2020).
10.15		First Amendment to Lease, dated as of December 30, 2020, between Adicet Therapeutics, Inc. as Tenant, and Westport Office Park, LLC as Landlord (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K (File No. 001-38359) filed with the SEC on January 5, 2021).
10.16		Office Lease Agreement, dated as of January 8, 2018, by and between the Registrant and 500 Boylston and 222 Berkeley Owner (DE) LLC (incorporated by reference to Exhibit 10.15 to the Registrant’s Registration Statement on Form S-1, as amended, (File No. 333-222373) filed with the SEC on January 16, 2018).
10.17		First Amendment to Office Lease, dated as of April 1, 2019, by and between the Registrant and 500 Boylston and 222 Berkeley Owner (DE) LLC (incorporated by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q (File No. 001-38359) filed with the SEC on May 15, 2019).
10.18		Amendment No. 2 to License Agreement, dated August 20, 2019, by and between the Registrant and Novartis International Pharmaceutical Ltd. (incorporated by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q (File No. 001-38359) filed with the SEC on November 5, 2019).
10.19		Stock Purchase Agreement, dated February 12, 2021, by and among the Registrant and the Investors named therein (incorporated by reference to Exhibit 10.1 to the Registrant’s Registration Statement on Form 8-K, as amended (File No. 001-38359) filed with the SEC on February 16, 2021).
10.20†		Registration Rights Agreement, dated February 12, 2021, by and among the Registrant and the Investors named therein.
21.1†		Subsidiaries of the Registrant.
23.1†		Consent of KPMG LLP, independent registered public accounting firm.
23.2*		Consent of PricewaterhouseCoopers LLP, independent registered public accounting firm.
31.1*		Certification of Principal Executive Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*		Certification of Principal Financial Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1**		Certification of Principal Executive Officer and Principal Financial Officer pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS		Inline XBRL Instance Document
101.SCH		Inline XBRL Taxonomy Extension Schema Document
101.CAL		Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF		Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB		Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE		Inline XBRL Taxonomy Extension Presentation Linkbase Document
104*		Cover Page Interactive Data File
*	Filed herewith.
†	Previously filed.

+ Confidential treatment granted as to certain portions, which portions have been omitted and filed separately with the Securities and Exchange Commission.

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

** The certifications furnished in Exhibit 32.1 hereto are deemed to accompany this Annual Report on Form 10-K and will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended. Such certifications will not be deemed to be incorporated by reference into any filings under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, except to the extent that the Registrant specifically incorporates it by reference.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) 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.

	Adicet Bio, Inc.
Date: August 16, 2021	By:	/s/ Chen Schor
		Chen Schor President, Chief Executive Officer and Director (Principal Executive Officer)

Pursuant to the requirements of the Securities Act of 1934, this report has been signed by the following persons in the capacities and on the dates indicated.

Signature	Title	Date
/s/ Chen Schor
Chen Schor	President, Chief Executive Officer and Director (principal executive officer)	August 16, 2021
/s/ Nick Harvey
Nick Harvey	Chief Financial Officer (principal financial officer and principal accounting officer)	August 16, 2021
*
Jeffrey Chodakewitz	Director	August 16, 2021
*
Steve Dubin	Director	August 16, 2021
*
Carl L. Gordon, Ph.D	Director	August 16, 2021
*
Aya Jakobovits, Ph.D.	Director	August 16, 2021
*
Bastiano Sanna, Ph.D	Director	August 16, 2021
*
Andrew Sinclair	Director	August 16, 2021

By:	/s/ Chen Schor
	Chen Schor Attorney-in-Fact * Pursuant to Power of Attorney