Form 8-K/A SANGAMO THERAPEUTICS, For: Jun 18

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June 23, 2026 4:42 PM EDT

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

(Amendment No. 1)

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 18, 2026

SANGAMO THERAPEUTICS, INC.

(Exact name of registrant as specified in its charter)

Delaware

000-30171

68-0359556

(State or other jurisdiction

of incorporation)

(Commission
File Number)

(IRS Employer
ID Number)

501 Canal Blvd., Richmond, California 94804

(Address of principal executive offices) (Zip Code)

(510) 970-6000

(Registrant’s telephone number, including area code)

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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, $0.01 par value per share

SGMO

Nasdaq Capital Market*

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

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. ☐

On April 28, 2026, Sangamo Therapeutics, Inc. (the “Company”) received a written notification from the Nasdaq Stock Market LLC (“Nasdaq”) of its determination to delist the Company’s common stock as a result of the Company’s ongoing failure to comply with Nasdaq’s minimum bid price requirement. The Company’s common stock was suspended from trading on Nasdaq, and began trading on the OTCQB Venture Market, on May 5, 2026. The Company requested, and completed, a hearing before a Nasdaq Hearings Panel for the purposes of appealing the delisting determination. The timely request for a hearing has stayed delisting but did not stay the trading suspension of the Company’s common stock.

EXPLANATORY NOTE

Sangamo Therapeutics, Inc. is filing this Amendment No. 1 to its Current Report on Form 8-K (this “Amendment”), originally filed with the Securities Exchange Commission on June 23, 2026 (the “Original 8-K”), solely to file exhibits 2.1 and 2.2. This Amendment does not amend or change any of the information previously disclosed in the Original 8-K. Interested parties should refer to the Original 8-K for Items 1.01, 1.03, 2.03 and 2.05.

Item 9.01.

Financial Statements and Exhibits.

(d) Exhibits.


Exhibit No.		Description

2.1#		Asset Purchase Agreement, dated June 22, 2026, by and among Sangamo Therapeutics, Inc., Merope Acquisition Sub, LLC, Eli Lilly and Company, and Sangamo Therapeutics UK Ltd., Sangamo Therapeutics France SAS, and Ceregene, Inc.

2.2#		Asset Purchase Agreement, dated June 22, 2026, by and between Sangamo Therapeutics, Inc. and Astellas Gene Therapies, Inc.

104		Cover Page Interactive Data File (embedded within Inline XBRL document).

#	Certain of the exhibits and schedules to this exhibit have been omitted in accordance with Regulation S-K Item 601(a)(5). The Company agrees to furnish a copy of all omitted exhibits and schedules to the SEC upon its request.

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 hereunto duly authorized.