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Gossamer Bio (GOSS) Institutional Ownership

Gossamer Bio logo
$2.99 -0.21 (-6.56%)
Closing price 09/17/2025 04:00 PM Eastern
Extended Trading
$3.04 +0.04 (+1.51%)
As of 05:51 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
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Institutional Ownership Changes (13F Filings) for Gossamer Bio (NASDAQ:GOSS)

Current
Institutional Ownership
Percentage
81.23%
Number of
Institutional Buyers
(last 12 months)
49
Total
Institutional Inflows
(last 12 months)
$28.18M
Number of
Institutional Sellers
(last 12 months)
24
Total
Institutional Outflows
(last 12 months)
$28.78M
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GOSS Institutional Buying and Selling by Quarter

Gossamer Bio Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/19/2025 State of Wyoming105,175$129K0.0%N/A0.046%
8/15/2025 Exome Asset Management LLC1,097,999$1.35M0.7%-8.3%0.483%
8/15/2025 Corient Private Wealth LLC3,693,683$4.54M0.0%+8.9%1.624%
8/15/2025 Lazard Asset Management LLC67,362$82K0.0%+53.9%0.030%
8/15/2025 Bridgeway Capital Management LLC485,900$598K0.0%-13.4%0.214%
8/15/2025 Bank of America Corp DE67,080$83K0.0%-59.1%0.030%
8/15/2025 Ameriprise Financial Inc.434,049$534K0.0%N/A0.191%
8/14/2025 Banco BTG Pactual S.A.22,009$27K0.0%N/A0.010%
8/14/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.103,947$128K0.0%N/A0.046%
8/14/2025 The Manufacturers Life Insurance Company 72,061$89K0.0%N/A0.032%
8/14/2025 Qube Research & Technologies Ltd249,784$307K0.0%-72.1%0.110%
8/13/2025 Diametric Capital LP89,382$110K0.1%-7.0%0.039%
8/13/2025 Invesco Ltd.239,245$294K0.0%+447.5%0.105%
8/13/2025 Arrowstreet Capital Limited Partnership1,117,972$1.38M0.0%+39.1%0.492%
8/13/2025 New York State Common Retirement Fund77,000$95K0.0%N/A0.034%
8/13/2025 Quadrature Capital Ltd95,796$117K0.0%N/A0.042%
8/13/2025 Choreo LLC76,111$94K0.0%+58.2%0.033%
8/12/2025 XTX Topco Ltd98,976$122K0.0%N/A0.044%
8/12/2025 Rhumbline Advisers231,049$284K0.0%N/A0.102%
8/12/2025 Legal & General Group Plc21,159$26K0.0%N/A0.009%
8/12/2025 JPMorgan Chase & Co.90,447$111K0.0%+479.0%0.040%
8/8/2025 Intech Investment Management LLC98,303$121K0.0%N/A0.043%
8/8/2025 Police & Firemen s Retirement System of New Jersey42,915$53K0.0%N/A0.019%
8/8/2025 Geode Capital Management LLC4,555,080$5.60M0.0%+100.4%2.004%
8/7/2025 ProShare Advisors LLC38,946$48K0.0%N/A0.017%
8/7/2025 Monaco Asset Management SAM3,550,000$4.37M0.8%-26.8%1.562%
8/7/2025 Acadian Asset Management LLC7,146,022$8.79M0.0%+12.4%3.144%
7/30/2025 Drive Wealth Management LLC25,474$31K0.0%+52.7%0.011%
7/21/2025 Platinum Investment Management Ltd.1,383,863$1.70M0.1%-20.1%0.609%
6/27/2025 Goldman Sachs Group Inc.939,603$1.03M0.0%+720.2%0.413%
5/23/2025Siren L.L.C.5,208,968$5.73M0.3%-3.8%2.292%
5/21/2025Acadian Asset Management LLC6,358,113$6.99M0.0%+24.6%2.798%
5/20/2025Focus Partners Wealth700,000$770K0.0%N/A0.308%
5/19/2025Jane Street Group LLC683,423$752K0.0%+5,250.1%0.301%
5/16/2025Goldman Sachs Group Inc.939,603$1.03M0.0%+720.2%0.414%
5/16/2025Jacobs Levy Equity Management Inc.282,264$310K0.0%-81.6%0.124%
5/16/2025Alyeska Investment Group L.P.4,163,734$4.58M0.0%-52.7%1.832%
5/16/2025ADAR1 Capital Management LLC227,228$250K0.0%-97.3%0.100%
5/15/2025Cubist Systematic Strategies LLC194,031$213K0.0%N/A0.085%
5/15/2025DAFNA Capital Management LLC907,854$999K0.3%-35.6%0.400%
5/15/2025Siren L.L.C.5,208,968$5.73M0.3%-3.8%2.292%
5/15/2025OMERS ADMINISTRATION Corp351,600$387K0.0%N/A0.155%
5/12/2025Virtu Financial LLC34,971$38K0.0%N/A0.015%
5/12/2025Invesco Ltd.43,697$48K0.0%N/A0.019%
5/9/2025Charles Schwab Investment Management Inc.1,138,947$1.25M0.0%-8.3%0.501%
5/8/2025Monaco Asset Management SAM4,849,134$5.33M1.1%-9.7%2.134%
5/8/2025GSA Capital Partners LLP695,553$765K0.1%-19.3%0.306%
5/7/2025Mackenzie Financial Corp352,473$388K0.0%+17.6%0.155%
2/27/2025Jefferies Financial Group Inc.100,000$90K0.0%N/A0.044%
2/20/2025Mackenzie Financial Corp299,815$271K0.0%+499.0%0.132%
2/17/2025Woodline Partners LP728,459$659K0.0%-7.5%0.321%
2/17/2025Velan Capital Investment Management LP75,000$68K0.1%N/A0.033%
2/17/2025Squarepoint Ops LLC71,944$65K0.0%-51.0%0.032%
2/17/2025Two Sigma Investments LP891,279$806K0.0%+41.3%0.393%
2/17/2025Two Sigma Advisers LP1,157,500$1.05M0.0%+44.7%0.511%
2/17/2025Octagon Capital Advisors LP18,350,000$16.60M2.7%+99.7%8.098%
2/17/2025Millennium Management LLC3,586,067$3.24M0.0%+14.6%1.583%
2/17/2025Lazard Asset Management LLC107,470$97K0.0%+7,992.6%0.047%
2/17/2025Jacobs Levy Equity Management Inc.1,534,668$1.39M0.0%-18.7%0.677%
2/17/2025Jefferies Financial Group Inc.100,000$90K0.0%N/A0.044%
2/17/2025Graham Capital Management L.P.34,947$32K0.0%N/A0.015%
2/17/2025Fullcircle Wealth LLC47,954$43K0.0%N/A0.021%
2/17/2025DAFNA Capital Management LLC1,409,262$1.28M0.3%-0.7%0.622%
2/17/2025Bridgeway Capital Management LLC541,000$489K0.0%-2.0%0.239%
2/17/2025Bank of America Corp DE84,788$77K0.0%+107.2%0.037%
2/17/2025Alyeska Investment Group L.P.8,808,514$7.97M0.0%+52.7%3.887%
2/17/2025Allostery Investments LP613,028$555K0.6%N/A0.271%
2/14/2025Schonfeld Strategic Advisors LLC154,700$140K0.0%-34.6%0.068%
2/14/2025Opti Capital Management LP182,319$165K0.0%N/A0.080%
2/14/2025Price T Rowe Associates Inc. MD64,777$59K0.0%-99.0%0.029%
2/14/2025Silverarc Capital Management LLC6,171,847$5.58M1.2%+9.3%2.724%
2/13/2025Marshall Wace LLP2,534,378$2.28M0.0%-27.3%1.118%
2/13/2025Renaissance Technologies LLC1,712,503$1.55M0.0%-1.9%0.756%
2/13/2025Smith Moore & CO.300,000$271K0.0%+32.7%0.132%
2/12/2025Geode Capital Management LLC2,250,461$2.04M0.0%+1.7%0.993%
2/12/2025Diametric Capital LP223,770$202K0.1%-22.1%0.099%
2/11/2025Platinum Investment Management Ltd.3,180,295$2.88M0.2%-9.8%1.403%
2/10/2025Monaco Asset Management SAM5,371,641$4.86M0.7%+39.5%2.371%
2/6/2025Victory Capital Management Inc.265,407$240K0.0%-3.3%0.117%
2/6/2025Charles Schwab Investment Management Inc.1,241,979$1.12M0.0%+1.1%0.548%
1/27/2025Financial Advocates Investment Management78,616$71K0.0%-16.0%0.035%
1/13/2025Sivia Capital Partners LLC28,018$25K0.0%-28.2%0.012%
12/13/2024Exome Asset Management LLC468,499$462K0.3%-58.5%0.207%
11/16/2024Geode Capital Management LLC2,212,377$2.18M0.0%-3.1%0.976%
11/15/2024Jacobs Levy Equity Management Inc.1,887,512$1.86M0.0%+30.7%0.833%
11/13/2024The Manufacturers Life Insurance Company385,133$380K0.0%+24.2%0.170%
11/12/2024Charles Schwab Investment Management Inc.1,228,077$1.21M0.0%-2.7%0.543%
11/5/2024GSA Capital Partners LLP67,546$67K0.0%N/A0.030%
10/28/2024US Bancorp DE39,655$39K0.0%N/A0.018%
10/25/2024Financial Advocates Investment Management93,550$92K0.0%-12.4%0.041%
10/22/2024Sequoia Financial Advisors LLC118,500$117K0.0%+26.7%0.052%
8/16/2024Algert Global LLC83,543$75K0.0%N/A0.037%
8/15/2024The Manufacturers Life Insurance Company310,213$279K0.0%+67.4%0.137%
8/15/2024Millennium Management LLC5,597,378$5.04M0.0%-13.8%2.474%
8/14/2024NEA Management Company LLC18,093,034$16.30M1.2%+14.2%7.998%
8/14/2024Marshall Wace LLP3,335,511$3.00M0.0%+170.8%1.474%
8/9/2024Renaissance Technologies LLC2,046,600$1.84M0.0%+204.7%0.905%
8/8/2024Federated Hermes Inc.3,065,136$2.76M0.0%-2.2%1.355%
8/7/2024Monaco Asset Management SAM2,726,104$2.46M0.4%+390.3%1.205%
8/7/2024Choreo LLC48,111$46K0.0%N/A0.021%
(Data available from 1/1/2016 forward)

GOSS Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of GOSS shares?

During the previous two years, 83 institutional investors and hedge funds held shares of Gossamer Bio. The most heavily invested institutionals were Octagon Capital Advisors LP ($16.60M), NEA Management Company LLC ($16.30M), Vanguard Group Inc. ($13.88M), Acadian Asset Management LLC ($8.79M), ARCH Venture Management LLC ($6.71M), Siren L.L.C. ($5.73M), and Geode Capital Management LLC ($5.60M).Learn more on Gossamer Bio's institutional investors.

What percentage of Gossamer Bio's stock is owned by institutional investors?

81.23% of Gossamer Bio's stock is owned by institutional investors. Learn more on GOSS's institutional investor holdings.

Which institutional investors have been buying Gossamer Bio's stock?

Of the 71 institutional investors that purchased Gossamer Bio's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Octagon Capital Advisors LP ($10.16M), ARCH Venture Management LLC ($8.06M), Silverarc Capital Management LLC ($6.66M), Monashee Investment Management LLC ($5.30M), Armistice Capital LLC ($4.96M), Platinum Investment Management Ltd. ($4.59M), and Monaco Asset Management SAM ($4.25M).

How much institutional buying is happening at Gossamer Bio?

Institutional investors have bought a total of 28,064,518 shares in the last 24 months. This purchase volume represents approximately $28.18M in transactions.

Which of Gossamer Bio's major shareholders have been selling company stock?

Of the 24 institutional investors that sold Gossamer Bio's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: ADAR1 Capital Management LLC ($8.09M), Price T Rowe Associates Inc. MD ($6.37M), Alyeska Investment Group L.P. ($4.64M), Monaco Asset Management SAM ($1.82M), Jacobs Levy Equity Management Inc. ($1.61M), Marshall Wace LLP ($950.55K), and Exome Asset Management LLC ($759.20K).

How much institutional selling is happening at Gossamer Bio?

Institutional investors have sold a total of 27,426,251 shares in the last 24 months. This volume of shares sold represents approximately $28.78M in transactions.


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This page (NASDAQ:GOSS) was last updated on 9/18/2025 by MarketBeat.com Staff
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