Go Pro
→ NASA's ISS Replacement Could Go to This Tiny Space Firm (From Behind the Markets) (Ad)tc pixel Free GOSS Stock Alerts

Gossamer Bio (GOSS) Institutional Ownership

Gossamer Bio logo
$11.45 +0.46 (+4.21%)
As of 09:58 AM Eastern
This is a fair market value price provided by Massive. Learn more.
Compare

Institutional Ownership Changes (13F Filings) for Gossamer Bio (NASDAQ:GOSS)

Current
Institutional Ownership
Percentage
81.23%
Number of
Institutional Buyers
(last 12 months)
93
Total
Institutional Inflows
(last 12 months)
$9.65B
Number of
Institutional Sellers
(last 12 months)
39
Total
Institutional Outflows
(last 12 months)
$3.96B
Get GOSS Insider Trade Alerts

Want to know when executives and insiders are buying or selling Gossamer Bio stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily.

Subscribe Now
SMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.
Skip Chart & View Institutional Buying and Selling Data

GOSS Institutional Buying and Selling by Quarter

Gossamer Bio Major Shareholders & Ownership History

Export
Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/9/2026 Squarepoint Ops LLC2,556,378$421K0.0%-24.8%1.089%
8/27/2026 Corient Private Wealth LP5,632,698$927K0.0%+41.3%2.400%
8/19/2026 Hsbc Holdings PLC1,583,118$267K0.0%+1,289.4%0.675%
8/17/2026 Corient Private Wealth LP5,625,509$926K0.0%N/A2.397%
8/17/2026 Bank of America Corp DE396,727$65K0.0%N/A0.169%
8/15/2026 Hhlr Advisors LTD.4,974,041$819K0.1%N/A2.119%
8/15/2026 ARCH Venture Management LLC8,055,916$1.33M0.0%N/A3.432%
8/14/2026 ADAR1 Capital Management LLC212,531$35K0.0%N/A0.091%
8/14/2026 Hsbc Holdings PLC1,583,118$267K0.0%N/A0.675%
8/12/2026 Ieq Capital LLC591,254$97K0.0%N/A0.252%
8/7/2026 BlackRock Inc.7,669,943$1.26M0.0%N/A3.268%
8/7/2026 Deutsche Bank AG1,106,441$188K0.0%N/A0.471%
8/6/2026 GSA Capital Partners LLP14,986,947$2.47M0.2%N/A6.386%
7/9/2026 Hennion & Walsh Asset Management Inc.1,098,914$181K0.0%+32.6%0.468%
5/19/2026 Bank of America Corp DE3,173,725$1.04M0.0%+66.5%1.352%
5/18/2026 ADAR1 Capital Management LLC287,531$94K0.0%-233.4%0.123%
5/18/2026 Rock Springs Capital Management LP1,609,492$529K0.0%-87.5%0.686%
5/16/2026 Kalehua Capital Management LLC10,236,293$3.36M2.4%N/A4.361%
5/15/2026 Octagon Capital Advisors LP7,750,000$2.55M0.3%-44.3%3.302%
5/14/2026 Renaissance Technologies LLC1,217,868$400K0.0%+84.8%0.519%
5/5/2026 MB Generational Wealth LLC1,532,142$503K0.3%-4.6%0.653%
4/30/2026 Hsbc Holdings PLC113,943$38K0.0%N/A0.049%
4/16/2026 SG Americas Securities LLC128,568$42K0.0%+73.4%0.055%
3/17/2026 Rockefeller Capital Management L.P.60,866$189K0.0%+496.7%0.026%
3/9/2026 Corient Private Wealth LLC3,845,885$11.92M0.0%+19,123.7%1.662%
2/19/2026 Invesco Ltd.478,909$1.49M0.0%+36.0%0.207%
2/19/2026 Corient Private Wealth LLC3,845,885$11.92M0.0%+19,123.7%1.662%
2/18/2026 Mercer Global Advisors Inc. ADV23,983$74K0.0%+52.3%0.010%
2/18/2026 Beacon Pointe Advisors LLC11,000$34K0.0%N/A0.005%
2/18/2026 XTX Topco Ltd456,329$1.42M0.0%+66.1%0.197%
2/18/2026 VARCOV Co.83,868$260K0.1%N/A0.036%
2/18/2026 Virtus Investment Advisers LLC73,896$229K0.1%N/A0.032%
2/18/2026 Wellington Management Group LLP601,323$1.86M0.0%-6.3%0.260%
2/18/2026 Susquehanna Portfolio Strategies LLC111,350$345K0.0%+489.2%0.048%
2/18/2026 Opaleye Management Inc.2,720,000$8.43M1.1%-0.2%1.175%
2/18/2026 Perceptive Advisors LLC3,139,669$9.73M0.2%-17.7%1.356%
2/18/2026 Millennium Management LLC3,584,288$11.11M0.0%-1.0%1.549%
2/18/2026 Engineers Gate Manager LP51,129$158K0.0%N/A0.022%
2/18/2026 Balyasny Asset Management L.P.1,516,691$4.70M0.0%+96.8%0.655%
2/18/2026 Bridgeway Capital Management LLC176,000$546K0.0%-47.6%0.076%
How to get a stake in Anthropic — before the IPO (Ad)

Anthropic, the maker of Claude AI, has reportedly filed for an IPO that could arrive as early as October. Its valuation has doubled since the announcement, with some estimates putting the company's worth near 3 trillion dollars by IPO day. Google, Amazon, Nvidia and Microsoft have all taken stakes, while Goldman Sachs, Morgan Stanley and JPMorgan are competing for private shares. Anthropic's annualized revenue reportedly grew 80 times in the first quarter alone. See how investors are positioning ahead of this closely watched IPO.tc pixel

Learn how to get a stake before the Anthropic IPO
2/17/2026 AQR Capital Management LLC1,119,240$3.47M0.0%+73.1%0.484%
2/17/2026 Cetera Investment Advisers34,249$106K0.0%N/A0.015%
2/17/2026 Lazard Asset Management LLC56,668$176K0.0%+35.9%0.024%
2/17/2026 Jain Global LLC278,189$862K0.0%-73.6%0.120%
2/17/2026 Price T Rowe Associates Inc. MD113,138$351K0.0%+12.4%0.049%
2/17/2026 Integral Health Asset Management LLC1,000,000$3.10M0.2%N/A0.432%
2/17/2026 Russell Investments Group Ltd.171,071$530K0.0%-75.0%0.074%
2/17/2026 Atom Investors LP205,639$637K0.1%+55.1%0.089%
2/17/2026 State of Wisconsin Investment Board26,304$82K0.0%N/A0.011%
2/17/2026 Mangrove Partners IM LLC30,747$95K0.0%N/A0.013%
2/17/2026 Graham Capital Management L.P.36,467$113K0.0%-45.9%0.016%
2/16/2026 Squarepoint Ops LLC221,591$687K0.0%N/A0.096%
2/16/2026 Panagora Asset Management Inc.147,296$457K0.0%+392.6%0.064%
2/16/2026 Mariner LLC64,450$200K0.0%+186.8%0.028%
2/16/2026 Barclays PLC576,533$1.79M0.0%+112.2%0.249%
2/13/2026 The Manufacturers Life Insurance Company 58,441$181K0.0%-10.6%0.025%
2/13/2026 Walleye Capital LLC1,077,032$3.34M0.0%+97.4%0.465%
2/13/2026 Hudson Bay Capital Management LP14,180$44K0.0%N/A0.006%
2/13/2026 Jacobs Levy Equity Management Inc.2,178,033$6.75M0.0%+54.7%0.941%
2/13/2026 Rafferty Asset Management LLC312,804$970K0.0%N/A0.135%
2/13/2026 Alyeska Investment Group L.P.909,087$2.82M0.0%-52.4%0.393%
2/13/2026 Charles Schwab Investment Management Inc.1,685,778$5.23M0.0%-2.5%0.728%
2/13/2026 State Street Corp9,310,969$28.86M0.0%+139.7%4.023%
2/13/2026 Ieq Capital LLC11,211$35K0.0%N/A0.005%
2/13/2026 Caitong International Asset Management Co. Ltd26,408$82K0.2%+22.1%0.011%
2/13/2026 Wells Fargo & Company MN361,921$1.12M0.0%+210.2%0.156%
2/13/2026 Platinum Investment Management Ltd.561,951$1.74M0.4%-26.5%0.243%
2/12/2026 HRT Financial LP956,879$2.97M0.0%N/A0.413%
2/12/2026 MetLife Investment Management LLC85,645$266K0.0%-15.6%0.037%
2/12/2026Cibc World Markets Corp12,712$39K0.0%N/A0.005%
2/12/2026 Commonwealth Equity Services LLC78,756$244K0.0%+84.6%0.034%
2/12/2026 Renaissance Technologies LLC658,888$2.04M0.0%-77.9%0.285%
2/12/2026 EntryPoint Capital LLC105,085$326K0.1%+105.0%0.045%
2/12/2026 Vickerman Investment Advisors Inc.34,787$108K0.0%N/A0.015%
2/12/2026 Nuveen LLC308,522$956K0.0%-71.4%0.133%
2/11/2026 Janney Montgomery Scott LLC12,700$39K0.0%N/A0.005%
2/11/2026 Deutsche Bank AG1,284,335$3.98M0.0%+0.4%0.555%
2/11/2026 Cerity Partners LLC31,914$99K0.0%+39.7%0.014%
2/11/2026 O Shaughnessy Asset Management LLC13,107$41K0.0%N/A0.006%
2/10/2026 Goldman Sachs Group Inc.1,792,114$5.56M0.0%+498.2%0.774%
2/10/2026 AXQ Capital LP63,117$196K0.0%+36.1%0.027%
2/10/2026 Monaco Asset Management SAM309,211$959K0.2%-77.6%0.134%
2/10/2026 Intech Investment Management LLC85,582$265K0.0%-15.1%0.037%
2/9/2026 Eaton Financial Holdings Company LLC14,199$44K0.0%N/A0.006%
2/9/2026 Geode Capital Management LLC4,872,714$15.11M0.0%+3.9%2.105%
2/6/2026 ProShare Advisors LLC45,338$141K0.0%+39.6%0.020%
2/6/2026 HighTower Advisors LLC66,494$206K0.0%+241.0%0.029%
2/5/2026 Soltis Investment Advisors LLC10,099$31K0.0%N/A0.004%
2/3/2026 Sequoia Financial Advisors LLC88,467$274K0.0%-24.7%0.038%
2/3/2026 MMA Asset Management LLC10,000$31K0.0%N/A0.004%
Iran War TRUTH: What Two Congressmen Led Me To (Ad)

Two private meetings with U.S. Congressmen on March 2nd, three days after the first missiles fell, sent one analyst down an unexpected research trail. The investigation uncovered a coordinated operation, a shadow group running it, and one company sitting at the center of it all.tc pixel

Click here to uncover the strategy behind the Iran war.
2/2/2026 Oppenheimer & Co. Inc.37,500$116K0.0%N/A0.016%
1/29/2026 China Universal Asset Management Co. Ltd.47,716$148K0.0%N/A0.021%
1/26/2026 Merit Financial Group LLC155,178$481K0.0%+15.2%0.067%
1/26/2026 Mirae Asset Global Investments Co. Ltd.11,247$35K0.0%N/A0.005%
1/26/2026CWM LLC33,957$105K0.0%+35.7%0.015%
1/23/2026 Choreo LLC75,111$234K0.0%-11.7%0.032%
1/14/2026 Hennion & Walsh Asset Management Inc.652,977$2.02M0.1%N/A0.282%
1/9/2026 SG Americas Securities LLC74,129$230K0.0%+249.7%0.032%
1/8/2026 Wealth Enhancement Advisory Services LLC23,964$74K0.0%+24.8%0.010%
1/8/2026 NorthCrest Asset Manangement LLC11,484$36K0.0%N/A0.005%


GOSS Institutional Ownership - Frequently Asked Questions

During the previous two years, 149 institutional investors and hedge funds held shares of Gossamer Bio. The most heavily invested institutionals were Vanguard Group Inc. ($31.59M), State Street Corp ($28.86M), Geode Capital Management LLC ($15.11M), Palo Alto Investors LP ($14.37M), Corient Private Wealth LLC ($11.92M), Millennium Management LLC ($11.11M), and Perceptive Advisors LLC ($9.73M).Learn more on Gossamer Bio's institutional investors.

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

Of the 126 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: GSA Capital Partners LLP ($15.05M), Kalehua Capital Management LLC ($10.24M), Octagon Capital Advisors LP ($9.16M), Corient Private Wealth LLC ($8.26M), ARCH Venture Management LLC ($8.06M), BlackRock Inc. ($7.67M), and Corient Private Wealth LP ($7.27M).

Institutional investors have bought a total of 98,655,637 shares in the last 24 months. This purchase volume represents approximately $9.65B in transactions.

Of the 39 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: Rock Springs Capital Management LP ($11.23M), Octagon Capital Advisors LP ($6.17M), Alyeska Investment Group L.P. ($3.55M), Monaco Asset Management SAM ($3.24M), Renaissance Technologies LLC ($2.32M), Squarepoint Ops LLC ($842.38K), and Platinum Investment Management Ltd. ($821.91K).

Institutional investors have sold a total of 33,531,331 shares in the last 24 months. This volume of shares sold represents approximately $3.96B in transactions.


Related Companies

Institutional ownership data for NASDAQ:GOSS is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.
From Our Partners
Everyone remembers January's silver spike. Then what?
Silver is up more than 50 percent over the past year, yet interest has faded since its January record. The ...
i2i Marketing Group, LLC | Sponsoredtc pixel
A letter from Shannon Stansberry
Porter Stansberry nearly canceled the entire project. When he first saw the claimed returns - only one down ye...
Porter & Company | Sponsoredtc pixel
How to get a stake in Anthropic — before the IPO
Anthropic, the maker of Claude AI, has reportedly filed for an IPO that could arrive as early as October. Its ...
Weiss Ratings | Sponsoredtc pixel
CODE RED: AI Meltdown Imminent?
After correctly predicting the 2008 and 2020 stock market meltdowns, I believe this AI company is about to tri...
Paradigm Press | Sponsoredtc pixel
Why I believe the AI market will split in Q4
Matt McCall, who recommended Nvidia near $6 a share, says the AI market is splitting in two - just like the do...
The Oxford Club | Sponsoredtc pixel
Arizona Gold Explorer Nears First-Ever Resource Estimate
A little-known Arizona gold explorer just hit 66.2 metres grading 6.57 g/t gold, including 20.7 metres at 18.2...
Wall Street Logic | Sponsoredtc pixel
Shocking new footage just released
Gerardo Del Real is calling it the Third Convergence Event, a new catalyst hitting the uranium market that he ...
Digest Publishing | Sponsoredtc pixel
Congress Passes Landmark Digital Asset Law Wall Street Is Watching
The House passed the Digital Asset Market Clarity Act 294 to 134, creating the most comprehensive financial te...
Awesomely | Sponsoredtc pixel