Katie Peng - Jun 11, 2025 Form 4 Insider Report for Adicet Bio, Inc. (ACET)

Role: Director
Signature: /s/ Nick Harvey, Attorney-in-Fact
Stock symbol: ACET
Transactions as of: Jun 11, 2025
Transactions value $: $0
Form type: 4
Date filed: 6/13/2025, 04:05 PM
Previous filing: May 23, 2025
Next filing: Jun 17, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Peng Katie	Director	C/O ADICET BIO, INC., 131 DARTMOUTH STREET, FLOOR 3, BOSTON	/s/ Nick Harvey, Attorney-in-Fact	2025-06-13	0001983850

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ACET	Common Stock	Award	$0	+5.9K	+100%	$0.00	11.8K	Jun 11, 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ACET	Stock Option (Right to Buy)	Award	$0	+26.4K		$0.00	26.4K	Jun 11, 2025	Common Stock	26.4K	$0.78	Direct	F2

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

Explanation of Responses:

Id	Content
F1	The Reporting Person was issued Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of Common Stock. The RSUs shall vest in full on the earlier to occur of (i) the first anniversary of the grant date or (ii) the date of the next annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service on the Issuer's board of directors. The RSUs may be settled only by delivering shares of Common Stock, and thus, the grant is being reported in Table I as allowed per SEC guidance.
F2	These shares shall vest in full on the earlier to occur of (i) the first anniversary of the grant date or (ii) the date of the next annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service on the Issuer's board of directors.

Content

The Reporting Person was issued Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of Common Stock. The RSUs shall vest in full on the earlier to occur of (i) the first anniversary of the grant date or (ii) the date of the next annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service on the Issuer's board of directors. The RSUs may be settled only by delivering shares of Common Stock, and thus, the grant is being reported in Table I as allowed per SEC guidance.

These shares shall vest in full on the earlier to occur of (i) the first anniversary of the grant date or (ii) the date of the next annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service on the Issuer's board of directors.