Tectonic Therapeutic Ownership | Who Owns Tectonic Therapeutic?

Tectonic Therapeutic Ownership Summary

Tectonic Therapeutic is owned by 5.98% institutional investors, 38.38% insiders, and 55.63% retail investors. Fmr is the largest institutional shareholder, holding 15.00% of TECX shares.

TECX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Tectonic Therapeutic	5.98%	38.38%	55.63%
Sector	Healthcare Stocks	42.50%	10.81%	46.69%
Industry	Biotech Stocks	45.24%	10.75%	44.01%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Fmr	2.81M	15.00%	$44.04M
Blackrock funding, inc. /de	827.85K	4.42%	$12.99M
Braidwell lp	736.87K	3.94%	$11.56M
Farallon capital management	640.00K	3.42%	$10.04M
Vanguard group	569.48K	3.04%	$8.94M
5am venture management	511.66K	2.73%	$8.03M
Point72 asset management	421.75K	2.25%	$6.62M
Prosight management, lp	379.25K	2.03%	$5.95M
Abrdn	356.18K	1.91%	$5.59M
Bollard group	302.95K	1.62%	$4.75M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
5am venture management	511.66K	2.94%	$8.03M
Sectoral asset management	192.77K	1.87%	$3.02M
Superstring capital management lp	119.29K	1.84%	$1.87M
Prosight management, lp	379.25K	1.39%	$5.95M
Ally bridge group (ny)	138.59K	1.32%	$2.17M
Stempoint capital lp	189.00K	0.59%	$2.97M
Aldebaran capital	38.50K	0.55%	$604.10K
Tfg asset management gp	243.73K	0.51%	$3.82M
Knott david m jr	74.00K	0.47%	$1.16M
Pale fire capital se	259.73K	0.45%	$4.08M

Top Buyers

Holder	Shares	% Assets	Change
Braidwell lp	736.87K	0.34%	736.87K
Abrdn	356.18K	0.01%	356.18K
Pale fire capital se	259.73K	0.45%	259.73K
Kennedy capital management	208.78K	0.07%	208.78K
First light asset management	202.39K	0.30%	202.39K

Top Sellers

Holder	Shares	% Assets	Change
Deep track capital, lp	-	-	-1.40M
Vida ventures advisors	-	-	-1.03M
Ecor1 capital	-	-	-935.12K
Paradigm biocapital advisors lp	-	-	-485.11K
Farallon capital management	640.00K	0.04%	-213.05K

New Positions

Holder	Shares	% Assets	Change	Value
Braidwell lp	736.87K	0.34%	736.87K	$11.56M
Abrdn	356.18K	0.01%	356.18K	$5.59M
Pale fire capital se	259.73K	0.45%	259.73K	$4.08M
Kennedy capital management	208.78K	0.07%	208.78K	$3.28M
First light asset management	202.39K	0.30%	202.39K	$3.18M

Sold Out

Holder	Change
Nordwand advisors	-1.50K
Virtus etf advisers	-1.53K
Commonwealth equity services	-5.00K
Jefferies financial group	-5.40K
Ameriprise financial	-7.52K

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	24	-70.73%	1,119,638	-90.76%	5	0.14%	11	-78.85%	5	-61.54%
Jun 30, 2025	80	6.67%	12,108,929	23.80%	64	1.99%	53	-7.02%	13	18.18%
Mar 31, 2025	76	10.14%	11,027,607	43.97%	64	2.38%	57	26.67%	12	-20.00%
Dec 31, 2024	70	34.62%	7,686,866	7.12%	52	2.20%	46	53.33%	15	66.67%
Sep 30, 2024	52	33.33%	7,175,807	34.23%	48	0.24%	30	-23.08%	9	-

Recent Insider Transactions

Date	Name	Activity	Value
Apr 09, 2025	SPRINGER TIMOTHY A	Buy	$13.05K
Apr 09, 2025	SPRINGER TIMOTHY A	Buy	$41.83K
Apr 11, 2025	SPRINGER TIMOTHY A	Buy	$154.59K
Apr 10, 2025	SPRINGER TIMOTHY A	Buy	$135.38K
Apr 11, 2025	SPRINGER TIMOTHY A	Buy	$875.94K

Insider Transactions Trends

Date	Buy	Sell
2025 Q2	10	1
2025 Q1	3	-
2024 Q4	1	-
2024 Q3	4	-
2024 Q2	-	-

TECX Ownership FAQ

Who Owns Tectonic Therapeutic?

Tectonic Therapeutic shareholders are primarily institutional investors at 5.98%, followed by 38.38% insiders and 55.64% retail investors. The average institutional ownership in Tectonic Therapeutic's industry, Biotech Stocks , is 45.24%, which Tectonic Therapeutic falls below.

Who owns the most shares of Tectonic Therapeutic?

Tectonic Therapeutic’s largest shareholders are Fmr (2.81M shares, 15.00%), Blackrock funding, inc. /de (827.85K shares, 4.42%), and Braidwell lp (736.87K shares, 3.94%). Together, they hold 23.36% of Tectonic Therapeutic’s total shares outstanding.

Does Blackrock own Tectonic Therapeutic?

BlackRock is not among the top 10 institutional shareholders of Tectonic Therapeutic.

Who is Tectonic Therapeutic’s biggest shareholder by percentage of total assets invested?

5am venture management is Tectonic Therapeutic’s biggest shareholder by percentage of total assets invested, with 2.94% of its assets in 511.66K Tectonic Therapeutic shares, valued at 8.03M$.

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