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GOSS Insider Trading

Insider Ownership Percentage: 6.70%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $0.00

Gossamer Bio Insider Trading History Chart

This chart shows the insider buying and selling history at Gossamer Bio by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Gossamer Bio Share Price & Price History

Current Price: $2.18
Price Change: ▲ Price Increase of +0.025 (1.16%)
As of 02/18/2026 04:50 PM ET

This chart shows the closing price history over time for GOSS up to the past year.

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Days: 30 | 90 | 365

Gossamer Bio Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
6/24/2024Richard ArandaInsiderSell1,908$0.66$1,259.28196,891View SEC Filing Icon  
6/21/2024Faheem HasnainCEOBuy372,000$0.67$249,240.005,408,073View SEC Filing Icon  
3/27/2024Bryan GiraudoCFOSell6,430$1.16$7,458.8092,737View SEC Filing Icon  
3/27/2024Faheem HasnainCEOSell23,172$1.16$26,879.52120,293View SEC Filing Icon  
3/18/2024Richard ArandaInsiderSell4,018$1.33$5,343.94198,799View SEC Filing Icon  
11/13/2023Bryan GiraudoCFOBuy200,000$0.56$112,000.00380,010View SEC Filing Icon  
6/22/2023Richard ArandaInsiderSell1,814$1.29$2,340.06197,574View SEC Filing Icon  
4/4/2023Bryan GiraudoCFOBuy55,000$1.02$56,100.00125,990View SEC Filing Icon  
3/22/2023Faheem HasnainCEOBuy440,500$1.14$502,170.004,495,897View SEC Filing Icon  
3/20/2023Bryan GiraudoCFOBuy50,000$0.97$48,500.0070,990View SEC Filing Icon  
3/20/2023Faheem HasnainCEOBuy168,683$1.03$173,743.493,786,008View SEC Filing Icon  
3/20/2023Waage ChristianEVPBuy18,500$1.20$22,200.0032,388View SEC Filing Icon  
3/16/2023Caryn PetersonEVPSell7,564$1.10$8,320.4053,851View SEC Filing Icon  
3/16/2023Laura CarterInsiderSell6,029$1.10$6,631.9076,263View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Gossamer Bio (NASDAQ:GOSS)

81.23% of Gossamer Bio stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at GOSS by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Gossamer Bio Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/18/2026Opaleye Management Inc.2,720,000$8.43M1.1%-0.2%1.175%Search for SEC Filing on Google Icon
2/18/2026Perceptive Advisors LLC3,139,669$9.73M0.2%-17.7%1.356%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC3,584,288$11.11M0.0%-1.0%1.549%Search for SEC Filing on Google Icon
2/18/2026Engineers Gate Manager LP51,129$0.16M0.0%N/A0.022%Search for SEC Filing on Google Icon
2/18/2026Balyasny Asset Management L.P.1,516,691$4.70M0.0%+96.8%0.655%Search for SEC Filing on Google Icon
2/18/2026Bridgeway Capital Management LLC176,000$0.55M0.0%-47.6%0.076%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC1,119,240$3.47M0.0%+73.1%0.484%Search for SEC Filing on Google Icon
2/17/2026Cetera Investment Advisers34,249$0.11M0.0%N/A0.015%Search for SEC Filing on Google Icon
2/17/2026Lazard Asset Management LLC56,668$0.18M0.0%+35.9%0.024%Search for SEC Filing on Google Icon
2/17/2026Jain Global LLC278,189$0.86M0.0%-73.6%0.120%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD113,138$0.35M0.0%+12.4%0.049%Search for SEC Filing on Google Icon
2/17/2026Integral Health Asset Management LLC1,000,000$3.10M0.2%N/A0.432%Search for SEC Filing on Google Icon
2/17/2026Russell Investments Group Ltd.171,071$0.53M0.0%-75.0%0.074%Search for SEC Filing on Google Icon
2/17/2026Atom Investors LP205,639$0.64M0.1%+55.1%0.089%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board26,304$82K0.0%N/A0.011%Search for SEC Filing on Google Icon
2/17/2026Mangrove Partners IM LLC30,747$95K0.0%N/A0.013%Search for SEC Filing on Google Icon
2/17/2026Graham Capital Management L.P.36,467$0.11M0.0%-45.9%0.016%Search for SEC Filing on Google Icon
2/16/2026Squarepoint Ops LLC221,591$0.69M0.0%N/A0.096%Search for SEC Filing on Google Icon
2/16/2026Panagora Asset Management Inc.147,296$0.46M0.0%+392.6%0.064%Search for SEC Filing on Google Icon
2/16/2026Mariner LLC64,450$0.20M0.0%+186.8%0.028%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC576,533$1.79M0.0%+112.2%0.249%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 58,441$0.18M0.0%-10.6%0.025%Search for SEC Filing on Google Icon
2/13/2026Walleye Capital LLC1,077,032$3.34M0.0%+97.4%0.465%Search for SEC Filing on Google Icon
2/13/2026Hudson Bay Capital Management LP14,180$44K0.0%N/A0.006%Search for SEC Filing on Google Icon
2/13/2026Jacobs Levy Equity Management Inc.2,178,033$6.75M0.0%+54.7%0.941%Search for SEC Filing on Google Icon
2/13/2026Rafferty Asset Management LLC312,804$0.97M0.0%N/A0.135%Search for SEC Filing on Google Icon
2/13/2026Alyeska Investment Group L.P.909,087$2.82M0.0%-52.4%0.393%Search for SEC Filing on Google Icon
2/13/2026Charles Schwab Investment Management Inc.1,685,778$5.23M0.0%-2.5%0.728%Search for SEC Filing on Google Icon
2/13/2026State Street Corp9,310,969$28.86M0.0%+139.7%4.023%Search for SEC Filing on Google Icon
2/13/2026Ieq Capital LLC11,211$35K0.0%N/A0.005%Search for SEC Filing on Google Icon
2/13/2026Caitong International Asset Management Co. Ltd26,408$82K0.2%+22.1%0.011%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN361,921$1.12M0.0%+210.2%0.156%Search for SEC Filing on Google Icon
2/13/2026Platinum Investment Management Ltd.561,951$1.74M0.4%-26.5%0.243%Search for SEC Filing on Google Icon
2/12/2026HRT Financial LP956,879$2.97M0.0%N/A0.413%Search for SEC Filing on Google Icon
2/12/2026MetLife Investment Management LLC85,645$0.27M0.0%-15.6%0.037%Search for SEC Filing on Google Icon
2/12/2026Cibc World Markets Corp12,712$39K0.0%N/A0.005%Search for SEC Filing on Google Icon
2/12/2026Commonwealth Equity Services LLC78,756$0.24M0.0%+84.6%0.034%Search for SEC Filing on Google Icon
2/12/2026Renaissance Technologies LLC658,888$2.04M0.0%-77.9%0.285%Search for SEC Filing on Google Icon
2/12/2026EntryPoint Capital LLC105,085$0.33M0.1%+105.0%0.045%Search for SEC Filing on Google Icon
2/12/2026Vickerman Investment Advisors Inc.34,787$0.11M0.0%N/A0.015%Search for SEC Filing on Google Icon
2/12/2026Nuveen LLC308,522$0.96M0.0%-71.4%0.133%Search for SEC Filing on Google Icon
2/11/2026Janney Montgomery Scott LLC12,700$39K0.0%N/A0.005%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG1,284,335$3.98M0.0%+0.4%0.555%Search for SEC Filing on Google Icon
2/11/2026Cerity Partners LLC31,914$99K0.0%+39.7%0.014%Search for SEC Filing on Google Icon
2/11/2026O Shaughnessy Asset Management LLC13,107$41K0.0%N/A0.006%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.1,792,114$5.56M0.0%+498.2%0.774%Search for SEC Filing on Google Icon
2/10/2026AXQ Capital LP63,117$0.20M0.0%+36.1%0.027%Search for SEC Filing on Google Icon
2/10/2026Monaco Asset Management SAM309,211$0.96M0.2%-77.6%0.134%Search for SEC Filing on Google Icon
2/10/2026Intech Investment Management LLC85,582$0.27M0.0%-15.1%0.037%Search for SEC Filing on Google Icon
2/9/2026Eaton Financial Holdings Company LLC14,199$44K0.0%N/A0.006%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC4,872,714$15.11M0.0%+3.9%2.105%Search for SEC Filing on Google Icon
2/6/2026ProShare Advisors LLC45,338$0.14M0.0%+39.6%0.020%Search for SEC Filing on Google Icon
2/6/2026HighTower Advisors LLC66,494$0.21M0.0%+241.0%0.029%Search for SEC Filing on Google Icon
2/5/2026Soltis Investment Advisors LLC10,099$31K0.0%N/A0.004%Search for SEC Filing on Google Icon
2/3/2026Sequoia Financial Advisors LLC88,467$0.27M0.0%-24.7%0.038%Search for SEC Filing on Google Icon
2/3/2026MMA Asset Management LLC10,000$31K0.0%N/A0.004%Search for SEC Filing on Google Icon
2/2/2026Oppenheimer & Co. Inc.37,500$0.12M0.0%N/A0.016%Search for SEC Filing on Google Icon
1/29/2026China Universal Asset Management Co. Ltd.47,716$0.15M0.0%N/A0.021%Search for SEC Filing on Google Icon
1/26/2026Merit Financial Group LLC155,178$0.48M0.0%+15.2%0.067%Search for SEC Filing on Google Icon
1/26/2026Mirae Asset Global Investments Co. Ltd.11,247$35K0.0%N/A0.005%Search for SEC Filing on Google Icon
1/26/2026CWM LLC33,957$0.11M0.0%+35.7%0.015%Search for SEC Filing on Google Icon
1/23/2026Choreo LLC75,111$0.23M0.0%-11.7%0.032%Search for SEC Filing on Google Icon
1/14/2026Hennion & Walsh Asset Management Inc.652,977$2.02M0.1%N/A0.282%Search for SEC Filing on Google Icon
1/9/2026SG Americas Securities LLC74,129$0.23M0.0%+249.7%0.032%Search for SEC Filing on Google Icon
1/8/2026Wealth Enhancement Advisory Services LLC23,964$74K0.0%+24.8%0.010%Search for SEC Filing on Google Icon
1/8/2026NorthCrest Asset Manangement LLC11,484$36K0.0%N/A0.005%Search for SEC Filing on Google Icon
1/1/2026JPMorgan Chase & Co.194,369$0.51M0.0%+114.9%0.084%Search for SEC Filing on Google Icon
1/1/2026Tudor Investment Corp ET AL50,103$0.13M0.0%+7.8%0.022%Search for SEC Filing on Google Icon
12/9/2025Tudor Investment Corp ET AL50,103$0.13M0.0%+7.8%0.022%Search for SEC Filing on Google Icon
11/21/2025CIBC Bancorp USA Inc.20,246$53K0.0%N/A0.009%Search for SEC Filing on Google Icon
11/19/2025Caitong International Asset Management Co. Ltd21,637$57K0.0%N/A0.009%Search for SEC Filing on Google Icon
11/17/2025Jacobs Levy Equity Management Inc.1,408,118$3.70M0.0%+29.0%0.608%Search for SEC Filing on Google Icon
11/17/2025XTX Topco Ltd274,782$0.72M0.0%+177.6%0.119%Search for SEC Filing on Google Icon
11/17/2025Alyeska Investment Group L.P.1,909,087$5.02M0.0%-57.2%0.825%Search for SEC Filing on Google Icon
11/17/2025Voleon Capital Management LP19,500$51K0.0%N/A0.008%Search for SEC Filing on Google Icon
11/17/2025Velan Capital Investment Management LP70,000$0.18M0.2%-6.7%0.030%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd208,789$0.55M0.0%-16.4%0.090%Search for SEC Filing on Google Icon
11/17/2025Prelude Capital Management LLC136,200$0.36M0.0%-63.6%0.059%Search for SEC Filing on Google Icon
11/17/2025Palo Alto Investors LP5,464,349$14.37M2.7%-4.8%2.361%Search for SEC Filing on Google Icon
11/17/2025Mercer Global Advisors Inc. ADV15,744$41K0.0%N/A0.007%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC3,619,329$9.52M0.0%+629.3%1.564%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.87,274$0.23M0.0%-16.0%0.038%Search for SEC Filing on Google Icon
11/17/2025Jain Global LLC1,054,356$2.77M0.0%N/A0.456%Search for SEC Filing on Google Icon
11/17/2025Focus Partners Wealth1,325,198$3.49M0.0%+15.2%0.573%Search for SEC Filing on Google Icon
11/17/2025Brevan Howard Capital Management LP14,093$37K0.0%N/A0.006%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE2,881,904$7.58M0.0%+4,196.2%1.245%Search for SEC Filing on Google Icon
11/17/2025Bank of Nova Scotia35,000$92K0.0%N/A0.015%Search for SEC Filing on Google Icon
11/17/2025Alliancebernstein L.P.98,680$0.26M0.0%+273.5%0.043%Search for SEC Filing on Google Icon
11/14/2025Lazard Asset Management LLC41,700$0.11M0.0%-38.1%0.018%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP2,287,251$6.02M0.0%+31.1%0.988%Search for SEC Filing on Google Icon
11/14/2025Bridgeway Capital Management LLC335,900$0.88M0.0%-30.9%0.145%Search for SEC Filing on Google Icon
11/14/2025Silverback Asset Management LLC500,000$1.32M0.1%+42.9%0.216%Search for SEC Filing on Google Icon
11/13/2025Platinum Investment Management Ltd.764,165$2.01M0.1%-44.8%0.330%Search for SEC Filing on Google Icon
11/13/2025Arrowstreet Capital Limited Partnership635,397$1.67M0.0%-43.2%0.275%Search for SEC Filing on Google Icon
11/13/2025Sei Investments Co.61,186$0.16M0.0%N/A0.026%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG2,770,046$7.29M0.0%+785.7%1.197%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets96,403$0.25M0.0%+463.2%0.042%Search for SEC Filing on Google Icon
11/13/2025Mackenzie Financial Corp309,050$0.81M0.0%-44.1%0.134%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.685,049$1.80M0.0%N/A0.296%Search for SEC Filing on Google Icon
11/12/2025Smith Moore & CO.280,000$0.74M0.1%-6.7%0.121%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Gossamer Bio logo
Gossamer Bio, Inc., a clinical-stage biopharmaceutical company, focuses on developing and commercializing seralutinib for the treatment of pulmonary arterial hypertension (PAH) in the United States. The company is developing GB002, an inhaled, small molecule, platelet-derived growth factor receptor, or PDGFR, colony-stimulatin factor 1 receptor and c-KIT inhibitor, which is in Phase 3 clinical trial for the treatment of PAH. It has license agreements with Pulmokine, Inc. to develop and commercialize GB002 and related backup compounds. The company was formerly known as FSG, Bio, Inc. and changed its name to Gossamer Bio, Inc. in 2017. Gossamer Bio, Inc. was incorporated in 2015 and is headquartered in San Diego, California.
Read More on Gossamer Bio

Today's Range

Now: $2.18
Low: $2.11
High: $2.23

50 Day Range

MA: $2.82
Low: $2.15
High: $3.79

52 Week Range

Now: $2.18
Low: $0.76
High: $3.87

Volume

4,962,162 shs

Average Volume

5,228,153 shs

Market Capitalization

$503.43 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.93

Who are the company insiders with the largest holdings of Gossamer Bio?

Gossamer Bio's top insider investors include:
  1. Faheem Hasnain (CEO)
  2. Richard Aranda (Insider)
  3. Bryan Giraudo (CFO)
Learn More about top insider investors at Gossamer Bio.

Who are the major institutional investors of Gossamer Bio?

Gossamer Bio's top institutional investors include:
  1. State Street Corp — 4.02%
  2. Geode Capital Management LLC — 2.11%
  3. Millennium Management LLC — 1.55%
  4. Perceptive Advisors LLC — 1.36%
  5. Opaleye Management Inc. — 1.18%
  6. Jacobs Levy Equity Management Inc. — 0.94%
Learn More about top institutional investors of Gossamer Bio stock.

Which major investors are selling Gossamer Bio stock?

In the previous quarter, GOSS stock was sold by these institutional investors:
  1. Renaissance Technologies LLC
  2. Monaco Asset Management SAM
  3. Alyeska Investment Group L.P.
  4. Jain Global LLC
  5. Nuveen LLC
  6. Perceptive Advisors LLC
  7. Russell Investments Group Ltd.
  8. Platinum Investment Management Ltd.

Which major investors are buying Gossamer Bio stock?

In the previous quarter, GOSS stock was bought by institutional investors including:
  1. State Street Corp
  2. Goldman Sachs Group Inc.
  3. Integral Health Asset Management LLC
  4. HRT Financial LP
  5. Jacobs Levy Equity Management Inc.
  6. Balyasny Asset Management L.P.
  7. Hennion & Walsh Asset Management Inc.
  8. Walleye Capital LLC