Tectonic Therapeutic Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Dilution of Shares: TECX only recently listed within the past 12 months

Top 25 shareholders own 75.08% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
28.8%	Timothy Springer	4,243,121	US$68.4m	0%	no data
7.72%	Polaris Venture Partners, Inc.	1,137,714	US$18.4m	0%	9.06%
7.31%	FMR LLC	1,077,538	US$17.4m	0%	no data
6.98%	Vida Ventures Advisors, LLC	1,028,674	US$16.6m	0%	12.62%
6.65%	Andrew Kruse	980,000	US$15.8m	0%	no data
5.76%	EcoR1 Capital, LLC	849,143	US$13.7m	0%	0.41%
3.16%	BML Capital Management, LLC	466,047	US$7.5m	0%	5.42%
2.57%	Atlas Venture L.P.	378,447	US$6.1m	0%	0.59%
1.98%	Alise Reicin	291,110	US$4.7m	0%	no data
1.06%	The Vanguard Group, Inc.	155,679	US$2.5m	0%	no data
0.86%	Christian Cortis	126,368	US$2.0m	0%	no data
0.74%	Acadian Asset Management LLC	109,629	US$1.8m	0%	no data
0.57%	Aisling Capital Management LP	84,148	US$1.4m	0%	0.6%
0.23%	Braden Leonard	33,333	US$537.7k	0%	no data
0.22%	Marcella Ruddy	32,065	US$517.2k	0%	no data
0.16%	Geode Capital Management, LLC	23,747	US$383.0k	0%	no data
0.14%	Terrance McGuire	20,262	US$326.8k	0%	no data
0.073%	Peter McNamara	10,688	US$172.4k	0%	no data
0.048%	Dimensional Fund Advisors LP	7,020	US$113.2k	0%	no data
0.023%	FNY Investment Advisers, LLC	3,376	US$54.4k	0%	0.04%
0.021%	Praveen Tipirneni	3,037	US$49.0k	0%	no data
0.0055%	Charles Schwab Investment Management, Inc.	816	US$13.2k	0%	no data
0.0011%	Phillip Donenberg	166	US$2.7k	0%	no data
0.00068%	Rhumbline Advisers Ltd Partnership	100	US$1.6k	0%	no data
0.00021%	National Bank Investments Inc.	31	US$499.1	0%	no data