Brian Nicholas Harvey - 24 Jan 2026 Form 4 Insider Report for Adicet Bio, Inc. (ACET)

Role: Chief Financial Officer
Signature: /s/ Nick Harvey
Issuer symbol: ACET
Transactions as of: 24 Jan 2026
Net transactions value: -$4,608
Form type: 4
Filing time: 27 Jan 2026, 16:43:43 UTC
Previous filing: 04 Feb 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Harvey Brian Nicholas	Chief Financial Officer	C/O ADICET BIO, INC., 131 DARTMOUTH STREET, FLOOR 3, BOSTON	/s/ Nick Harvey	27 Jan 2026	0001519432

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ACET	Common Stock	Tax liability	$4,608	-546	-9.6%	$8.44	5,145	24 Jan 2026	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units and does not represent a sale by the Reporting Person.
F2	Reflects a 1-for-16 reverse stock split effected by the Issuer on December 30, 2025.