Who Owns GOSSAMER (GOSS)? -- Institutional Holders (2026-06-30)

223 institutions reported holding $73.7M of GOSSAMER (GOSS) in SEC 13F filings for 2026-06-30. Largest institutional holders: TANG CAPITAL MANAGEMENT LLC ($11.5M), D. E. Shaw & Co., Inc. ($6.7M), 683 Capital Management, LLC ($6.5M), DeepCurrents Investment Group LLC ($6.0M), Context Capital Management, LLC ($4.8M). Source: SEC Form 13F.

Rank	Institution	Value	Shares	Change
1	TANG CAPITAL MANAGEMENT LLC	$11.5M	0	New
2	D. E. Shaw & Co., Inc.	$6.7M	41.0M	Added
3	683 Capital Management, LLC	$6.5M	39.2M	Added
4	DeepCurrents Investment Group LLC	$6.0M	37.7M	Added
5	Context Capital Management, LLC	$4.8M	28.9M	Trimmed
6	Worth Venture Partners, LLC	$4.1M	25.0M	Added
7	AQR CAPITAL MANAGEMENT LLC	$2.6M	15.6M	Added
8	GSA CAPITAL PARTNERS LLP	$2.5M	15.0M	Added
9	WOLVERINE ASSET MANAGEMENT LLC	$2.1M	12.9M	Trimmed
10	RENAISSANCE TECHNOLOGIES LLC	$1.9M	11.6M	Added
11	VANGUARD GROUP INC	$1.9M	11.3M	Trimmed
12	Kalehua Capital Management LLC	$1.8M	11.1M	Trimmed
13	ARCH Venture Management, LLC	$1.3M	8.1M	Hold
14	BARCLAYS PLC	$1.3M	7.8M	Added
15	Octagon Capital Advisors LP	$1.3M	7.8M	Hold
16	BlackRock, Inc.	$1.3M	7.7M	Trimmed
17	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	$1.2M	7.6M	New
18	TWO SIGMA INVESTMENTS, LP	$1.2M	7.4M	Added
19	SAMSARA BIOCAPITAL, LLC	$1.2M	7.2M	Hold
20	Qube Research & Technologies Ltd	$1.2M	7.1M	Added
21	Corient Private Wealth LLC	$927,142	5.6M	Added
22	Siren, L.L.C.	$857,396	5.2M	Hold
23	HHLR ADVISORS, LTD.	$818,727	5.0M	Hold
24	Murchinson Ltd.	$642,800	0	Added
25	UBS Group AG	$510,474	3.1M	Trimmed

Source: SEC Form 13F filings · as of 2026-06-30