SYNLOGIC, INC. — Director's Dealing 2025

Apr 29, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SYNLOGIC, INC. (SYBX)
CIK: 0001527599
Period of Report: 2025-04-26

Reporting Person: Flynn James P (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-04-26	Common Stock	A	15000	—	Acquired	15000	Direct

Footnotes

F1: Per the Amended and Restated Non-Employee Director Compensation Program, amended on April 26, 2025, and the 2015 Equity Incentive Award Plan, the Board of Directors of Synlogic, Inc. awarded each Non-Employee Director 15,000 shares of restricted stock. The shares were granted on April 26, 2025 and will fully vest on December 15, 2025, subject to the Reporting Person continuing to provide services to the Company as a Non-Employee Director, through such vesting date.