Tectonic Therapeutic, Inc.

Ownership Transactions Reported by 26 Insiders

	Insiders	Shares	%	Avg Price	Total $
Buys	2	+1.74M	77.6%	$35.24	+$61.2M
Sells	1	-500K	22.4%	$17.10	-$8.55M
Net	+1	+1.24M	55.3%		+$52.6M

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Report Date
Timothy A. Springer	Director, 10%+ Owner	$98.3M	+$60.9M	+163%	Jun 9, 2025
Mcguire Terrance	Director	$9.8M	-$8.55M	-46.6%	Jun 9, 2025
Alise Reicin	Chief Executive Officer, Director	$9.37M			Sep 25, 2025
Marcella K. Ruddy	Chief Medical Officer	$1.47M			Sep 25, 2025
Geoffrey Mackay	President & CEO, Director	$1.3M			Feb 8, 2023
Peter McNamara	Chief Scientific Officer	$900K			Sep 25, 2025
Daniel Lochner	Chief Financial Officer	$747K	+$250K	+50.3%	Sep 25, 2025
Marc Schwabish	Chief Business Officer	$609K			Sep 25, 2025
Braden Michael Leonard	Former 10% owner of AVROBIO	$564K			Jun 20, 2024
Azadeh Golipour	Chief Technology Officer	$202K			Feb 1, 2024
Erik Ostrowski	Interim CEO, President and CFO	$180K			Feb 1, 2024
Christian Cortis	Chief Operating Officer	$164K			Jun 20, 2024
Steven Avruch	Chief Legal Officer	$145K			Feb 1, 2024
Essra Ridha	Chief Medical Officer	$137K			Feb 1, 2024
Deanna M. Petersen	Chief Business Officer	$104K			Feb 8, 2023
Stefan Vitorovic	Director	$36.1K			Jun 9, 2025
Praveen P. Tipirneni	Director	$3.95K			Jun 9, 2025
Christopher Mason	Chief Scientific Officer				Jun 10, 2021
Gail M. Farfel	Director				Jun 6, 2023
Bruce Booth	Director				Jun 6, 2023
Annalisa Jenkins	Director				Jun 6, 2023
Philip J. Vickers	Director				Jun 6, 2023
Ian T. Clark	Director				Jun 6, 2023
Diana Escolar	Chief Medical Officer				Jun 10, 2021
Christopher Paige	Director				Jun 6, 2023
Phillip B. Donenberg	Director				Jun 9, 2025

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.