Tectonic Therapeutic (TECX.US) Shareholders - Institutional Holders, Major Shareholders & Insiders | Longbridge

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Shareholder Type

Institutions62.14%
Individuals & Insiders30.70%
VC/PE firms5.75%
Private companies1.41%

Major Shareholders

Major Shareholders Latest
Shareholder
Timothy SpringerIndependent Director	29.86%	5.84M	1.29%	+0	02/28/2026
FMR LLC	14.41%	2.82M	0.58%	+9.05K	03/31/2026
TCG Crossover Management, LLC	6.16%	1.20M	--	+1.20M	03/31/2026
Aberdeen Group Plc	5.84%	1.14M	0.22%	+0	06/30/2026
BlackRock, Inc.	4.41%	862.59K	0.16%	+2.24K	06/30/2026
Braidwell LP	4.33%	847.15K	0.62%	-80.37K	03/31/2026
First Light Asset Management, LLC	3.31%	647.74K	3.31%	+647.74K	03/31/2026
Polaris Growth Management, L.L.C.	3.26%	637.71K	0.14%	+0	02/28/2026
Baker Bros. Advisors LP	3.11%	607.79K	1.71%	-295.61K	03/31/2026
5AM Venture Management, LLC	3.10%	606.66K	0.13%	+0	03/31/2026
Vanguard Capital Management, LLC	2.77%	541.43K	--	+541.43K	03/31/2026
Vestal Point Capital, LP	1.68%	328.00K	0.07%	+0	03/31/2026
Alise ReicinPresident, CEO, Secretary & Director	1.62%	316.56K	0.05%	+2.01K	06/20/2026
The Bollard Group, LLC	1.55%	302.95K	0.07%	+0	03/31/2026
Kennedy Capital Management LLC	1.47%	286.68K	0.35%	+77.46K	03/31/2026
Geode Capital Management, LLC	1.37%	268.27K	0.03%	+4.71K	03/31/2026
Marshall Wace LLP	1.17%	229.60K	1.01%	+198.68K	03/31/2026
OrbiMed Advisors LLC	1.16%	226.60K	1.91%	-348.00K	03/31/2026
State Street Investment Management	1.12%	219.91K	<0.01%	+6.40K	06/30/2026
Chafen Lu	0.95%	186.13K	0.04%	+0	02/28/2026