ASSEMBLY BIOSCIENCES, INC. — Director's Dealing 2025

Apr 1, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ASSEMBLY BIOSCIENCES, INC. (ASMB)
CIK: 0001426800
Period of Report: 2025-03-29

Reporting Person: Delaney William E IV (N/A)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-03-29	Stock Option (right to buy)	$10.62	A	25500	Acquired	2035-03-29	Common Stock (25500)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	16733	Direct

Footnotes

F1: Includes 208 shares acquired under the Assembly Biosciences, Inc. Second Amended and Restated 2018 Employee Stock Purchase Plan on each of November 14, 2023, May 14, 2024 and November 14, 2024.

F2: Grant of stock options. The stock options vest over four years, assuming continuous service on each vesting date, as follows: 25% vest on the first anniversary of the date of grant, March 29, 2026; and the remaining 75% vest in 36 approximately equal monthly installments, with the options becoming fully vested on March 29, 2036.