Gossamer BIO Inc (GOSS)

CUSIP: 38341P201 | NYSE | 24 institutional holders

Compare Detailed Historical Funds Options Short Interest 13D/13G Peers Targeting Trading Summary Profile

Beneficial Ownership — 13D / 13G

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

Holder	Shares	% of Class	Change	Event Date	vs 13F
13G FMR LLC	667,465	10.9%	New 5%+ stake	Oct 30, 2026	290,939 sh (Sep 30, 2026)
13D/AD. E. Shaw & Co., L.L.C. with D. E. Shaw Valence Portfolios, L.L.C.

Institutional Holders — Q3 2026

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Context Capital Management, LLC361,830

0.1% of portfolio$4.3M

FMR LLC290,939

0.0% of portfolio$3.4M

Geode Capital Management, LLC70,318

0.0% of portfolio$833.5K

Squarepoint Ops LLC64,853

0.0% of portfolio$768.5K

MB Generational Wealth, LLC27,904

0.2% of portfolio$330.7K

Monaco Asset Management SAM25,461

0.0% of portfolio$301.7K

UBS Group AG14,984

0.0% of portfolio$177.6K

Hennion & Walsh Asset Management, Inc.14,203

0.0% of portfolio$168.3K

Citigroup Inc5,250

0.0% of portfolio$62.2K

Acadian Asset Management LLC4,468

0.0% of portfolio$52

Deutsche Bank Ag\1,831

0.0% of portfolio$21.7K

Group One Trading LLC1,421

0.0% of portfolio$16.8K

China Universal Asset Management Co., Ltd.1,115

0.0% of portfolio$12.9K

Farther Finance Advisors, LLC641

0.0% of portfolio$7.6K

Russell Investments Group, Ltd.455

0.0% of portfolio$5.4K

Mirae Asset Global Investments Co., Ltd.312

0.0% of portfolio$3.7K

Clearstead Advisors, LLC294

0.0% of portfolio$3.5K

Gamma Investing LLC44

0.0% of portfolio$521

Planning Strategies Inc.32

0.0% of portfolio$379

Essential Partners LLC32

0.0% of portfolio$379

EverSource Wealth Advisors, LLC31

0.0% of portfolio$367

Parallel Advisors, LLC26

0.0% of portfolio$308

Nisa Investment Advisors, LLC24

0.0% of portfolio$284

SBI Securities Co., Ltd.4

0.0% of portfolio$47

				Style	Turnover	Location	Filed
Context Capital Management, LLC	361,830	$4.3M	0.1%	Growth	High	Greenwich, CT	2026-11-04
FMR LLC	290,939	$3.4M	0.0%	Growth	Medium	Boston, MA	2026-11-10
Geode Capital Management, LLC	70,318	$833.5K	0.0%	Index	Very Low	Boston, MA	2026-11-06
Squarepoint Ops LLC	64,853	$768.5K	0.0%	Core	Very High	New York, NY	2026-11-09
MB Generational Wealth, LLC	27,904	$330.7K	0.2%	ETF	Low	Spokane, WA	2026-11-09
Monaco Asset Management SAM	25,461	$301.7K	0.0%	Yield	Very High	Monaco, Panama	2026-11-09
UBS Group AG	14,984	$177.6K	0.0%	Core	Medium	Zurich, Switzerland	2026-11-10
Hennion & Walsh Asset Management, Inc.	14,203	$168.3K	0.0%	Value	Medium	Parsippany, NJ	2026-10-13
Citigroup Inc	5,250	$62.2K	0.0%	Core	Medium	New York, NY	2026-11-04
Acadian Asset Management LLC	4,468	$52	0.0%	GARP	Medium	Boston, MA	2026-11-09
Deutsche Bank Ag\	1,831	$21.7K	0.0%	Core	Low	Frankfurt Am Main, Hong Kong	2026-11-06
Group One Trading LLC	1,421	$16.8K	0.0%	Value	Very High	Chicago, IL	2026-11-10
China Universal Asset Management Co., Ltd.	1,115	$12.9K	0.0%	Growth	Medium	Shanghai, France	2026-10-28
Farther Finance Advisors, LLC	641	$7.6K	0.0%	Index	Low	San Francisco, CA	2026-10-08
Russell Investments Group, Ltd.	455	$5.4K	0.0%	Core	Low	Seattle, WA	2026-11-06
Mirae Asset Global Investments Co., Ltd.	312	$3.7K	0.0%	Growth	Low	Seoul, Malaysia	2026-11-03
Clearstead Advisors, LLC	294	$3.5K	0.0%	ETF	Low	Cleveland, OH	2026-11-06
Gamma Investing LLC	44	$521	0.0%	Index	Very Low	Foster City, CA	2026-10-08
Planning Strategies Inc.	32	$379	0.0%	ETF	N/A	Lancaster, PA	2026-10-02
Essential Partners LLC	32	$379	0.0%	Value	Medium	Rancho Santa Fe, CA	2026-10-14
EverSource Wealth Advisors, LLC	31	$367	0.0%	Core	Medium	Birmingham, AL	2026-11-04
Parallel Advisors, LLC	26	$308	0.0%	Growth	Low	San Francisco, CA	2026-11-03
Nisa Investment Advisors, LLC	24	$284	0.0%	Index	Very Low	St. Louis, MO	2026-10-20
SBI Securities Co., Ltd.	4	$47	0.0%	Growth	Low	Tokyo, Mexico	2026-10-22