SANGAMO THERAPEUTICS INC

Item 1.03 Bankruptcy or Receivership. The information set forth under Item 2.01 below is incorporated into this Item 1.03 by reference.

Item 2.01 Completion of Acquisition or Disposition of Assets. As previously disclosed, on June 23, 2026, Sangamo Therapeutics, Inc. (the “Company”) filed a voluntary petition for relief (Case No. 26-10989) under Chapter 11 of the Bankruptcy Code in the United States Bankruptcy Court for the District of Delaware (the “Court” and such case, the “Chapter 11 Case”). The Company has continued to operate its business as a “debtor-in-possession” under the jurisdiction of the Court and in accordance with the applicable provisions of the Bankruptcy Code. On July 14, 2026, the Court entered an order approving bidding procedures (the “Bid Procedures Order”) (Docket No. 122), which, among other things, authorized the Company to identify one or more purchasers, subject to the Court’s approval, in connection with the sale of substantially all of the Company’s assets and enter into one or more related purchase agreements. Pursuant to the Bid Procedures Order, the bid deadline was 5:00 p.m. (Eastern Time) on August 4, 2026, and the Company conducted a court-supervised auction process on August 10, 2026, at which PTC Therapeutics, Inc. (“PTC”) was selected as the successful bidder for the Purchased Assets (as defined below). On September 2, 2026, the Court entered a Sale Order authorizing the sale of the Purchased Assets pursuant to the terms of the PTC APA (as defined below) (Docket No. 426). Accordingly, on September 17, 2026, the Company completed the previously announced sale of all of the Company’s right, title and interest in and to the assets primarily related to ST-920 (isaralgagene civaparvovec), a one-time administered AAV gene therapy product candidate for the treatment of Fabry disease (collectively, the “Purchased Assets”), as contemplated by the Asset Purchase Agreement (the “PTC APA”), dated August 25, 2026, by and between the Company and PTC, for total consideration consisting of (i) $111,000,000 payable in cash at closing and (ii) up to an additional $100,000,000 in contingent consideration payable upon the achievement of certain specified milestones, plus the assumption of certain specified liabilities of the Company (the “Assumed Liabilities”). The foregoing summary of the Asset Purchase Agreement and the transactions contemplated thereby is not complete and is qualified in its entirety by reference to the full text of the Asset Purchase Agreement, a copy of which is filed as Exhibit 2.1 to this Current Report on Form 8-K. Cautionary Language Regarding Trading in the Company’s Common Stock The Company’s stockholders are cautioned that trading in the Company’s common stock during the pendency of the Chapter 11 Case is highly speculative and poses substantial risks. The Company’s common stock has been suspended from trading on, and the Company received a notice of delisting from, the Nasdaq Capital Market and is currently trading on the OTCID Basic Market under the symbol “SGMOQ,” and trading prices for the Company’s common stock may bear little or no relationship to the actual recovery, if any, by holders thereof in the Company’s Chapter 11 Case. Accordingly, the Company urges extreme caution with respect to existing and future investments in its common stock.