Skip to main content
Livermore
Livermore
ZHEN

Gossamer Bio, Inc.

GOSS
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001728117

No open-market purchases or sales by Gossamer Bio, Inc. insiders were filed in the last 90 days; 170 institutions reported holding it in 13F filings for Q2 2026, worth $60.8M in total; HHLR Advisors (Hillhouse) is the only superinvestor holding it.

Q1 2026 vs. Q4 2025

How the institutions holding Gossamer Bio, Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of GOSS: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders1953185−7
Shares185.0M12.9M169.8M−2.28M (−1.3%)
Value$573.4M$40.0M$56.3M−$477.1M (−89.4%)

3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (47)

Institutions that held Gossamer Bio, Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to GOSS in Q1 2026
InstitutionSharesValue% of portfolio
Kalehua Capital Management LLC10,236,293$3.36M2.38%
Vanguard Capital Management LLC9,394,593$3.09M0.00%
Vanguard Portfolio Management LLC2,161,079$711.0K0.00%
Ensign Peak Advisors, Inc1,702,125$559.1K0.00%
Vanguard Fiduciary Trust Co1,404,285$462.0K0.00%
Ishara Investments LP820,000$269.4K0.27%
Virtu Financial LLC263,212$86.0K0.00%
Los Angeles Capital Management LLC131,216$43.1K0.00%
HSBC Holdings PLC113,943$37.8K0.00%
Nine Masts Capital Ltd114,766$37.7K0.01%
BCV Asset Management Inc.106,500$35.0K0.00%
Quarry LP100,000$32.9K0.01%
Group One Trading, L.P.83,595$27.5K0.00%
Vanguard Global Advisers, LLC79,682$26.2K0.00%
Chicago Partners Investment Group LLC62,489$24.4K0.00%
Colony Group, LLC73,013$24.0K0.00%
Waddell & Associates, LLC67,552$22.2K0.00%
Captrust Financial Advisors57,504$18.9K0.00%
Skaana Management L.P.40,200$13.2K0.01%
Alpine Global Management, LLC32,827$10.8K0.00%
Bull Harbor Capital LLC31,196$10.2K0.00%
CSS LLC30,000$9.86K0.00%
R.H. Investment Group, LLC26,300$9.14K0.01%
Buckingham Strategic Partners26,267$8.63K0.00%
Krilogy Financial LLC16,611$7.27K0.00%
Brighton Jones LLC20,068$6.59K0.00%
Angeles Wealth Management, LLC20,000$6.57K0.00%
VestGen Advisors, LLC17,437$5.94K0.00%
Change Path, LLC17,434$5.73K0.00%
Ground Swell Capital, LLC15,356$5.04K0.01%
Brinker Capital Investments, LLC15,220$5.00K0.00%
Integrated Wealth Concepts LLC14,424$4.74K0.00%
Baker Avenue Asset Management, LP13,221$4.34K0.00%
Sentinus, LLC12,862$4.22K0.00%
Stratos Wealth Partners, LTD.12,812$4.21K0.00%
Caerus Investment Advisors, LLC11,839$3.89K0.00%
Curated Wealth Partners LLC11,782$3.87K0.00%
Beese Fulmer Investment Management, Inc.11,135$3.66K0.00%
State of Wyoming10,941$3.59K0.00%
Beaumont Capital Management, LLC10,772$3.54K0.00%
Baader Bank INC16,077$3.47K0.00%
Pallas Capital Advisors LLC10,367$3.41K0.00%
Basecamp Wealth Advisors LLC1,912$6280.00%
Wealth Preservation Advisors, LLC1,504$4940.00%
Natixis920$3020.00%
TD Waterhouse Canada Inc.15$50.00%
HHM Wealth Advisors, LLC1$10.00%

Sold out (54)

Institutions that held Gossamer Bio, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of GOSS in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Palo Alto Investors LP4,471,592$13.9M
Perceptive Advisors LLC3,139,669$9.73M
Opaleye Management Inc.2,720,000$8.43M
Two Sigma Advisers, LP2,596,900$8.05M
Silverarc Capital Management, LLC2,135,722$6.62M
Walleye Capital LLC1,077,032$3.34M
Monashee Investment Management LLC1,000,000$3.10M
Integral Health Asset Management, LLC1,000,000$3.10M
HRT Financial LP956,879$2.97M
Arrowstreet Capital, Limited Partnership750,308$2.33M
Citadel Advisors LLC704,787$2.18M
Wellington Management Group LLP601,323$1.86M
Platinum Investment Management Ltd561,951$1.74M
Silverback Asset Management LLC500,000$1.55M
Exome Asset Management LLC451,699$1.40M
Algert Global LLC332,336$1.03M
Rafferty Asset Management, LLC312,804$969.7K
Monaco Asset Management SAM309,211$958.6K
EAM Investors, LLC278,422$863.1K
Jain Global LLC278,189$862.4K
Atom Investors LP205,639$637.5K
Stonepine Capital Management, LLC204,770$634.8K
Jane Street Group, LLC155,591$482.3K
Prelude Capital Management, LLC136,200$422.2K
Brevan Howard Capital Management LP127,299$394.6K
Profund Advisors LLC116,503$361.2K
Susquehanna Portfolio Strategies, LLC111,350$345.2K
EntryPoint Capital, LLC105,085$325.8K
HB Wealth Management, LLC95,924$297.4K
Lighthouse Investment Partners, LLC92,500$286.8K
MetLife Investment Management85,645$265.5K
VARCOV Co.83,868$260.0K
Voleon Capital Management LP60,235$186.7K
Lazard Asset Management LLC56,668$175.7K
Engineers Gate Manager LP51,129$158.5K
Graham Capital Management, L.P.36,467$113.0K
Mangrove Partners30,747$95.3K
Caitong International Asset Management Co., Ltd27,091$84.0K
Two Sigma Securities, LLC27,056$83.9K
State of Wisconsin Investment Board26,304$81.5K
Nomura Holdings Inc16,000$49.6K
Eaton Financial Holdings Company, LLC14,199$44.0K
Hudson Bay Capital Management LP14,180$44.0K
O'Shaughnessy Asset Management, LLC13,107$40.6K
Ciovacco Capital Management LLC10,204$31.6K
Soltis Investment Advisors LLC10,099$31.3K
Texas Yale Capital Corp.10,000$31.0K
Amalgamated Bank6,037$19.0K
SageView Advisory Group, LLC4,098$12.7K
Aster Capital Management (DIFC) Ltd2,100$6.51K
Daiwa Securities Group Inc.771$2.00K
GAMMA Investing LLC468$1.45K
SRS Capital Advisors, Inc.30$93
Capital Advisors, Ltd. LLC17$0

Not filed for Q1 2026 yet (3)

Institutions that held Gossamer Bio, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding GOSS in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Vanguard Group Inc12,873,209$39.9M
Sherbrooke Park Advisers LLC13,347$41.4K
CIBC World Markets Corp12,712$39.4K