TScan Therapeutics, Inc.

Ownership Transactions Reported by 21 Insiders

	Insiders	Shares	%	Avg Price	Total $
Buys	4	+14.7M	98.9%	$7.12	+$105M
Sells	1	-165K	1.1%	$5.78	-$952K
Net	+3	+14.6M	97.8%		+$104M

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Report Date
Baker Bros. Advisors Lp	Director	$308M	+$69M	+28.9%	Jun 12, 2024
Lynx1 Capital Management LP	10%+ Owner	$61.9M	+$35.6M	+136%	Apr 19, 2024
EcoR1 Capital, LLC	10%+ Owner	$24.8M			May 26, 2023
H. Westphal	10%+ Owner	$10.9M			Jul 20, 2021
Barbara Klencke	Director	$633K	+$81.5K	+14.8%	Aug 23, 2024
Timothy Barberich	Director	$498K	+$142K	+40%	Dec 18, 2023
Leiden Dworak	Chief Accounting Officer	$28.3K			Jul 21, 2023
Zoran Zdraveski	Chief Legal and Strategy Officer	$27.3K	-$952K	-97.2%	Aug 23, 2024
Keith Woods	Director				Jun 12, 2024
Stephen R. Biggar	Director				Jul 15, 2021
Brian M. Silver	Chief Financial Officer				Jun 13, 2023
William Desmarais	Chief Business Officer				Jul 25, 2022
Jason Amello	Chief Financial Officer				Feb 1, 2024
Debora Barton	Chief Medical Officer				Jun 13, 2023
Garry A. Nicholson	Director				Jun 12, 2024
Chrystal Louis	Chief Medical Officer				May 1, 2024
David P. Southwell	Chief Executive Officer, Director				Feb 2, 2023
Gabriela Gruia	Director				Jun 12, 2024
Katina Dorton	Director				Jun 12, 2024
Gavin MacBeath	Chief Executive Officer, Director				Jun 13, 2023
Ittai Harel	Director				Jun 1, 2022

Insider	Symbol	Class	Transaction	%	Value $	* Price $	Shares	Shares Owned	Date	Ownership

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