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GOSS Institutional Ownership & 13F Holders | SmartMoneyDB

GOSSGOSSAMER BIO INC

COM · CUSIP 38341P102

Smart Money Ownership

Of the 9 tracked institutions holding GOSS, 3 have a 3-year clone track record — 2 of them beat the S&P. Average holder's clone alpha: -3.0pt. It's a gauge of who owns the name, not just how many.

$818.7K · 0.1% of book

-20.6pt

Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →

GOSS (GOSSAMER BIO INC) Institutional Ownership Summary

Among the 9 tracked institutional investors we monitor, GOSS (GOSSAMER BIO INC) is held with a combined value of $55.13M across 59,021,658 shares. The largest holder is VANGUARD GROUP INC with a position worth $39.91M. 6 funds increased their holdings. 2 funds reduced their position.

Total Institutional Value

$55.13M

Total Shares Held

59,021,658

Institutional Holders

This Quarter's Biggest Movers

Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.

Biggest Buyers

VANGUARD GROUP INC+7% shares~$2.7M TWO SIGMA ADVISERS, LP+39% shares~$2.3M RENAISSANCE TECHNOLOGIES LLC+855% shares~$1.7M AQR CAPITAL MANAGEMENT LLC+54% shares~$905.4K MILLENNIUM MANAGEMENT LLC+1182% shares~$364.6K

13F Institutional Holders

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VANGUARD GROUP INC

0.00% of book+7.2%

$39.91M

TWO SIGMA ADVISERS, LP

0.02% of book+38.9%

$8.05M

AQR CAPITAL MANAGEMENT LLC

0.00% of book+54.3%

$2.57M

RENAISSANCE TECHNOLOGIES LLC

MILLENNIUM MANAGEMENT LLC

0.00% of book+1182.0%

#	Fund	Value↓	Shares	Portfolio %	Change
1	VANGUARD GROUP INC	$39.91M	12,873,209	0.00%	+7.2%
2	TWO SIGMA ADVISERS, LP	$8.05M	2,596,900	0.02%	+38.9%
3	AQR CAPITAL MANAGEMENT LLC	$2.57M	15,629,993	0.00%	+54.3%
4	RENAISSANCE TECHNOLOGIES LLC	$1.91M	11,629,896	0.00%	+854.9%
5	BlackRock, Inc.	$1.26M	7,669,943	0.00%	-54.4%
6	HHLR ADVISORS, LTD.	$818.73K	4,974,041	0.10%	-
7	MILLENNIUM MANAGEMENT LLC	$395.47K	2,402,633	0.00%	+1182.0%
8	STATE STREET CORP	$183.48K	1,114,718	0.00%	-74.6%
9	FMR LLC	$21.45K	130,325	0.00%	+478.8%

Activist & Large Holders (13D/13G)

Investor	Ownership	Type	Filed
D. E. SHAW & CO, L.P.	5.7%	13D/A	2026-08-24
BlackRock, Inc.	1.0%

Frequently Asked Questions

Which institutional investors own the most GOSS stock?

As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of GOSS with a position worth $39.91M, representing 0.00% of their portfolio. In total, 9 institutional investors hold GOSS with a combined value of $55.13M.

What percentage of GOSS is owned by institutional investors?

Institutional investors hold $55.13M worth of GOSS stock across 9 positions. The largest institutional holder is VANGUARD GROUP INC with $39.91M in holdings.

What is a 13F filing and why does it matter for GOSS?

A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For GOSS, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.

Track GOSS institutional moves

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