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Gossamer Bio (GOSS) Institutional Ownership

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$1.36 +0.09 (+7.09%)
Closing price 04:00 PM Eastern
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$1.34 -0.02 (-1.10%)
As of 06:50 PM Eastern
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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)
39
Total
Institutional Inflows
(last 12 months)
$29.84M
Number of
Institutional Sellers
(last 12 months)
24
Total
Institutional Outflows
(last 12 months)
$26.48M
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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
6/27/2025Goldman 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%
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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%
8/6/2024Acadian Asset Management LLC3,592,765$3.24M0.0%+31.3%1.588%
8/3/2024TD Asset Management Inc641,498$578K0.0%+51.9%0.284%
7/29/2024Financial Advocates Investment Management106,850$96K0.0%+57.5%0.047%
7/16/2024Sequoia Financial Advisors LLC93,500$84K0.0%+27.2%0.041%
5/16/2024Jacobs Levy Equity Management Inc.1,634,084$1.93M0.0%-22.3%0.722%
5/15/2024Price T Rowe Associates Inc. MD2,891,005$3.41M0.0%-21.8%1.278%
5/14/2024Platinum Investment Management Ltd.4,694,065$5.54M0.2%-32.5%2.075%
5/10/2024Acadian Asset Management LLC2,736,385$3.23M0.0%+51.6%1.210%
5/10/2024Vanguard Group Inc.11,763,784$13.88M0.0%+1.1%5.200%
5/9/2024Monaco Asset Management SAM556,000$656K0.2%+98.6%0.246%
5/7/2024SG Americas Securities LLC28,520$34K0.0%N/A0.013%
4/19/2024Sivia Capital Partners LLC24,568$29K0.0%N/A0.011%
2/16/2024Madison Avenue Partners LP5,054,472$4.61M0.7%-17.5%2.242%
2/15/2024Octagon Capital Advisors LP9,187,883$8.38M1.3%+12.2%4.076%
2/15/2024Birchview Capital LP138,176$126K0.1%-33.9%0.061%
2/14/2024ADAR1 Capital Management LLC713,028$651K0.2%N/A0.316%
2/14/2024Platinum Investment Management Ltd.6,954,110$6.35M0.3%+29.8%3.085%
2/13/2024Armistice Capital LLC4,156,000$3.79M0.1%-16.1%1.844%
2/12/2024Monashee Investment Management LLC3,459,854$3.16M0.6%-34.8%1.535%
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2/9/2024Corient Private Wealth LLC2,937,931$2.68M0.0%+48.9%1.303%
2/8/2024Financial Advocates Investment Management98,350$90K0.0%+35.0%0.044%
2/7/2024Monaco Asset Management SAM280,000$256K0.1%N/A0.124%
2/5/2024Victory Capital Management Inc.312,357$285K0.0%+1,402.4%0.139%
1/31/2024Federated Hermes Inc.3,206,460$2.93M0.0%-19.7%1.423%
12/6/2023Citigroup Inc.196,732$164K0.0%+9,916.9%0.087%
11/15/2023Kynam Capital Management LP250,000$208K0.0%N/A0.111%
11/15/2023Armistice Capital LLC4,956,000$4.13M0.1%N/A2.199%
11/14/2023Palo Alto Investors LP6,530,288$5.44M0.5%+88.5%2.897%
11/14/2023AWM Investment Company Inc.613,028$511K0.1%N/A0.272%
(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, 69 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 ($6.99M), ARCH Venture Management LLC ($6.71M), Siren L.L.C. ($5.73M), and Silverarc Capital Management LLC ($5.58M).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 58 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 31,900,544 shares in the last 24 months. This purchase volume represents approximately $29.84M 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), Jacobs Levy Equity Management Inc. ($1.61M), Marshall Wace LLP ($950.55K), Millennium Management LLC ($898.04K), and Exome Asset Management LLC ($659.20K).

How much institutional selling is happening at Gossamer Bio?

Institutional investors have sold a total of 25,821,424 shares in the last 24 months. This volume of shares sold represents approximately $26.48M in transactions.


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This page (NASDAQ:GOSS) was last updated on 7/9/2025 by MarketBeat.com Staff
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