Adicet Bio, Inc. — Director's Dealing 2021

May 14, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Adicet Bio, Inc. (ACET)
CIK: 0001720580
Period of Report: 2021-05-12

Reporting Person: Jakobovits Aya (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-12	Common Stock	S	5000	$13.2256	Disposed	221807	Indirect
2021-05-12	Common Stock	S	5000	$13.2409	Disposed	221806	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	329199	Indirect
Common Stock	135799	Indirect

Footnotes

F1: These sales were effected pursuant to Rule 10b5-1 trading plans previously adopted by the Reporting Person.

F2: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $12.97 to $13.68. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

F3: The Reporting Person previously transferred 149,307 shares and 149,306 shares from the trust described in footnote (7) to the trusts described in footnotes (4) and (6), respectively.

F4: Shares held in a trust of which Dr. Jakobovits spouse is the trustee and Dr. Jakobovits child is the beneficiary.

F5: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $13.05 to $13.52. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

F6: Shares held in a trust of which Dr. Jakobovits spouse is the trustee and Dr. Jakobovits child is the beneficiary.

F7: Shares held in a grantor retained annuity trust ("GRAT") of which Dr. Jakobovits spouse is the trustee and Dr. Jakobovits the sole annuitant and current beneficiary.

F8: Shares held in a GRAT of which Dr. Jakobovits spouse is the trustee and Dr. Jakobovits the sole annuitant and current beneficiary.