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Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
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X0202 SCHEDULE 13D/A 0001937147-24-000001 0001937147 XXXXXXXX LIVE 2 Common Stock, par value $0.001 per share 07/28/2026 false 0001527599 87166L209 SYNLOGIC, INC. PO BOX 30 WINCHESTER MA 01890 JACOB MA-WEAVER 415-857-1965 CABLE CAR CAPITAL, LP 601 California Street, Suite 1151 San Francisco CA 94108 ANDREW FREEDMAN, ESQ. 212-451-2300 OLSHAN FROME WOLOSKY LLP 1325 Avenue of the Americas New York NY 10019 0001937147 N Funicular Funds, LP WC N DE 3312219.00 0.00 3312219.00 0.00 3312219.00 N 28.3 PN 0001699575 N Cable Car Capital, LP AF N DE 3312219.00 0.00 3312219.00 0.00 3312219.00 N 28.3 IA PN 0001922140 N Ma-Weaver Jacob OO N X1 3312219.00 0.00 3312219.00 0.00 3312219.00 N 28.3 IN Common Stock, par value $0.001 per share SYNLOGIC, INC. PO BOX 30 WINCHESTER MA 01890 The following constitutes Amendment No. 2 to the Schedule 13D filed by the undersigned ("Amendment No. 2") relating to the Common Stock, par value $0.001 per share (the "Shares"), of Synlogic, Inc. (the "Issuer"). This Amendment No. 2 amends the Schedule 13D filed by the Reporting Persons as specifically set forth herein. Capitalized terms used but not otherwise defined herein have the meanings ascribed to such terms in the Schedule 13D. Item 4 is hereby amended to add the following: On July 28, 2026, the Issuer entered into an Agreement and Plan of Merger (the "Merger Agreement") by and among the Issuer, Caldera Therapeutics, Inc., a Delaware corporation ("Caldera"), Sonic Holdco, Inc., a Delaware corporation ("Parent"), Yellowstone Merger Sub, Inc., a Delaware corporation and a direct, wholly owned subsidiary of Parent ("Caldera Merger Sub"), and Sonic Merger Sub, Inc., a Delaware corporation and a direct, wholly owned subsidiary of Parent ("Synlogic Merger Sub"). Pursuant to and subject to the terms of the Merger Agreement, among other things, the Issuer will be merged with and into Synlogic Merger Sub, with the Issuer surviving as a wholly owned subsidiary of Parent (the "Merger"), as more fully described in the Form 8-K filed by the Issuer with the Securities and Exchange Commission on July 29, 2026. Concurrently with the execution of the Merger Agreement, the Reporting Persons entered into a Support Agreement (the "Support Agreement") with Caldera and the Issuer. Under the terms of the Support Agreement, the Reporting Persons have agreed to vote all of their Shares in favor of the Merger and the adoption of the Merger Agreement and against any proposal made in opposition to, or in competition with, the Merger Agreement or the Merger. In addition, the Reporting Persons have agreed not to take certain actions, including (i) selling or transferring any Shares (subject to certain exceptions), (ii) granting any proxies or powers of attorney with respect to the Shares, and (iii) exercising any appraisal rights with respect to the Merger. The Reporting Persons have, subject to certain conditions, also granted an irrevocable proxy to the Issuer to vote the Shares on the supported matters. The Support Agreement terminates in certain circumstances, including, among others, upon the valid termination of the Merger Agreement in accordance with its terms and by written agreement of the parties thereto. The foregoing description of the Support Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the form of Support Agreement, which is attached hereto as Exhibit 99.1 and is incorporated herein by reference. Item 6 is hereby amended to add the following: On July 28, 2026, the Reporting Persons entered into the Support Agreement as defined and described in Item 4 above. Item 7 is hereby amended to add the following exhibit: 99.1 - Form of Support Agreement (incorporated by reference to Ex. 10.1 to the Issuer's Current Report on Form 8-K, filed with the Securities and Exchange Commission on July 29, 2026). Funicular Funds, LP /s/ Jacob Ma-Weaver Jacob Ma-Weaver, Managing Member 07/29/2026 Cable Car Capital, LP /s/ Jacob Ma-Weaver Jacob Ma-Weaver, Managing Member 07/29/2026 Ma-Weaver Jacob /s/ Jacob Ma-Weaver Jacob Ma-Weaver 07/29/2026