Septerna, Inc. (SEPN) Ownership - Who Owns Septerna, Inc.?

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Recent Insider Trading Activity

Date	Name	Activity	Value

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Recent Hedge Fund Trading Activity

Date	Firm	Activity	Value
Dec 31, 2025	Graham Capital Management, L.p.	xxxxxxxxxxxxx	$250111
Dec 31, 2025	Woodline Partners Lp	xxxxxxxxxxxxx	$10742442
Dec 31, 2025	Perceptive Advisors Llc	xxxxxxxxxxxxx	$12076500
Dec 31, 2025	Primecap Management Co	xxxxxxxxxxxxx	$15225268

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Top Shareholders

Holder	# of Shares	Type	% Holding	Value
Peter Kolchinsky	6,995,858	Institution	15.58%	169,159,846
Richard Driehaus	4,809,470	Institution	10.71%	116,292,985
	1,471,943	Insider	3.28%	35,591,582
	1,353,672	Institution	3.01%	32,731,789
	1,154,101	Institution	2.57%	27,906,162
	1,074,588	Institution	2.39%	25,983,538
	826,907	Insider	1.84%	19,994,611
	660,865	Institution	1.47%	15,979,716
Theofanis Kolokotrones	546,100	Institution	1.22%	13,204,698
Joseph Edelman	433,160	Institution	0.96%	10,473,809

Top Mutual Fund Holders

# of Shares	Type	% Holding	Value
1,154,101	Institution	2.57%	27,906,162
660,865	Institution	1.47%	15,979,716
249,199	Institution	0.55%	6,025,632
240,362	Institution	0.54%	5,811,953
236,660	Institution	0.53%	5,722,439
120,269	Institution	0.27%	2,908,104
67,464	Institution	0.15%	1,631,280
53,783	Institution	0.12%	1,300,473
36,409	Institution	0.08%	880,370
33,720	Institution	0.08%	815,350

Top ETF Holders

Holder	# of Shares	Type	% Holding	Value
Vanguard Total Stock Market ETF	906,665	Institution	2.02%	26,311,418
iShares Russell 2000 ETF	522,327	Institution	1.16%	12,629,867
Vanguard Extended Market ETF	249,212	Institution	0.55%	7,232,132
iShares Biotechnology ETF	196,857	Institution	0.44%	4,760,002
iShares Russell 2000 Value ETF	185,837	Institution	0.41%	4,493,539
SPDR S&P Pharmaceuticals ETF	111,229	Institution	0.25%	2,700,640
Schwab U.S. Small-Cap ETF	109,880	Institution	0.24%	2,667,886
Vanguard Russell 2000 ETF	105,898	Institution	0.24%	3,073,160
Invesco DWA SmallCap Momentum ETF	70,643	Institution	0.16%	1,715,212
iShares U.S. Pharmaceuticals ETF	60,819	Institution	0.14%	1,470,603

FAQ

Who Owns Septerna, Inc. (SEPN)?

Currently, no data Available

What percentage of Septerna, Inc. (SEPN) stock is held by institutional investors?

Currently, no data Available

What percentage of Septerna, Inc. (SEPN) stock is held by retail investors?

Currently, no data Available

Who owns the most shares of Septerna, Inc. (SEPN)?

Peter Kolchinsky owns the most shares of Septerna, Inc. (SEPN).

What is the significance of the ownership structure for a publicly traded company?

The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.