Gavin MacBeath - Jun 13, 2023 Form 4 Insider Report for TScan Therapeutics, Inc. (TCRX)

Role: Chief Executive Officer, Director
Signature: /s/ Gavin MacBeath
Stock symbol: TCRX
Transactions as of: Jun 13, 2023
Transactions value $: $0
Form type: 4
Date filed: 6/15/2023, 06:08 PM
Previous filing: Feb 6, 2023

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	TCRX	Stock Option (Right to Buy)	Award	$0	+1.12M		$0.00	1.12M	Jun 13, 2023	Voting Common Stock	1.12M	$2.49	Direct	F1

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

Explanation of Responses:

Id	Content
F1	536,300 shares subject to this option shall vest and become exercisable with respect to 25% of the shares on the one-year anniversary of May 24, 2023, with the balance vesting thereafter in equal monthly installments over the next 36 months of continuous service to the Issuer. The remaining 585,000 shares subject to this option shall vest and become exercisable with respect to 25% of the shares on February 2, 2025, with the balance vesting thereafter in equal monthly installments over the next 36 months of continuous service to the Issuer, in each case subject to the Reporting Person's continued service at such time. This option was granted on May 24, 2023 subject to the approval of the Issuers' stockholders of an amendment to the TScan Therapeutics, Inc. 2021 Equity Incentive Plan, which was obtained on June 13, 2023.

Content

536,300 shares subject to this option shall vest and become exercisable with respect to 25% of the shares on the one-year anniversary of May 24, 2023, with the balance vesting thereafter in equal monthly installments over the next 36 months of continuous service to the Issuer. The remaining 585,000 shares subject to this option shall vest and become exercisable with respect to 25% of the shares on February 2, 2025, with the balance vesting thereafter in equal monthly installments over the next 36 months of continuous service to the Issuer, in each case subject to the Reporting Person's continued service at such time. This option was granted on May 24, 2023 subject to the approval of the Issuers' stockholders of an amendment to the TScan Therapeutics, Inc. 2021 Equity Incentive Plan, which was obtained on June 13, 2023.