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Gossamer Bio Ownership | Who Owns Gossamer Bio?

OverviewForecastRevenueFinancialsChart

Gossamer Bio Ownership Summary

Gossamer Bio is owned by 73.70% institutional investors, 3.29% insiders, and 23.01% retail investors. Octagon capital advisors lp is the largest institutional shareholder, holding 8.11% of GOSS shares. Fidelity Select Biotechnology is the top mutual fund, with 3.48% of its assets in Gossamer Bio shares.

GOSS Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockGossamer Bio73.70%3.29%23.01%
SectorHealthcare Stocks 57.39%9.93%32.68%
IndustryBiotech Stocks 68.48%9.65%21.87%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Octagon capital advisors lp18.35M8.11%$16.60M
Nea management company18.09M7.99%$16.37M
Vanguard group10.03M4.43%$9.08M
Alyeska investment group8.81M3.89%$7.97M
Arch venture management8.06M3.56%$7.29M
Fmr7.93M3.50%$7.18M
683 capital management6.97M3.08%$6.31M
Palo alto investors lp6.28M2.77%$5.68M
Silverarc capital management6.17M2.73%$5.58M
Samsara biocapital6.13M2.71%$5.55M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Arch venture management8.06M3.17%$7.29M
Octagon capital advisors lp18.35M2.73%$16.60M
Silverarc capital management6.17M1.22%$5.58M
Nea management company18.09M0.92%$16.37M
Palo alto investors lp6.28M0.88%$5.68M
Samsara biocapital6.13M0.76%$5.55M
Exome asset management1.10M0.75%$993.25K
Opaleye management4.49M0.71%$4.06M
Monaco asset management sam5.37M0.70%$4.86M
Allostery investments lp613.03K0.58%$554.54K

Top Buyers

HolderShares% AssetsChange
Octagon capital advisors lp18.35M2.73%9.16M
Alyeska investment group8.81M0.03%3.04M
Monaco asset management sam5.37M0.70%1.52M
683 capital management6.97M0.39%1.18M
Acadian asset management5.10M0.01%1.16M

Top Sellers

HolderShares% AssetsChange
Ecor1 capital---9.20M
Siren5.21M0.21%-8.07M
Price t rowe associates inc /md/64.78K--6.37M
Farallon capital management---6.13M
Madison avenue partners, lp---4.14M

New Positions

HolderShares% AssetsChangeValue
Allostery investments lp613.03K0.58%613.03K$554.54K
Opti capital management, lp182.32K0.01%182.32K$164.93K
Merriman wealth management142.27K0.01%142.27K$128.70K
Jefferies financial group100.00K0.00%100.00K$90.46K
Velan capital investment management lp75.00K0.06%75.00K$67.84K

Sold Out

HolderChange
Zurcher kantonalbank (zurich cantonalbank)-4.00
Northwestern mutual wealth management-261.00
Wells fargo & company/mn-264.00
Global retirement partners-300.00
Farther finance advisors-400.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 20241080.93%166,819,185-4.61%731.23%464.55%24-11.11%
Sep 30, 20241077.00%174,874,925-4.36%771.18%447.32%27-10.00%
Jun 30, 2024100-11.50%182,850,856-7.56%811.05%41-21.15%30-3.23%
Mar 31, 202411310.78%197,807,122-5.44%871.02%52-5.45%3147.62%
Dec 31, 20231024.08%209,181,5402.23%920.82%55-12.70%2116.67%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Fidelity Select Biotechnology7.91M3.48%-
Vanguard US Total Market Shares ETF7.84M3.45%-
Vanguard Total Stock Mkt Idx Inv6.76M2.98%-
Vanguard Institutional Extnd Mkt Idx Tr2.97M1.31%89.54K
Fidelity Extended Market Index1.04M0.46%-6.64K
Schwab US Small-Cap ETF™873.33K0.38%3.20K
Federated Hermes Kaufmann Small Cap Grow766.28K0.34%-3.07M
Federated Hermes Kaufmann Small Cap A766.28K0.34%-3.07M
Vanguard Health Care ETF642.15K0.28%-1.67K
Victory Science & Technology571.93K0.25%-6.11K

Recent Insider Transactions

DateNameRoleActivityValue
Jun 24, 2024Aranda Richard Chief Medical OfficerSell$1.26K
Jun 21, 2024Hasnain Faheem President & CEOBuy$250.28K
Jun 18, 2024Giraudo Bryan COO/CFOBuy$59.11K
Jun 17, 2024Smith Robert Paul JR Chief Commercial OfficerBuy$15.05K
Mar 27, 2024Christian Waage EVP, Tech Ops and AdminSell$7.43K

Insider Transactions Trends

DateBuySell
2025 Q1--
2024 Q231
2024 Q1-5
2023 Q42-
2023 Q3--

GOSS Ownership FAQ

Who Owns Gossamer Bio?

Gossamer Bio shareholders are primarily institutional investors at 73.70%, followed by 3.29% insiders and 23.01% retail investors. The average institutional ownership in Gossamer Bio's industry, Biotech Stocks , is 68.48%, which Gossamer Bio exceeds.

Who owns the most shares of Gossamer Bio?

Gossamer Bio’s largest shareholders are Octagon capital advisors lp (18.35M shares, 8.11%), Nea management company (18.09M shares, 7.99%), and Vanguard group (10.03M shares, 4.43%). Together, they hold 20.53% of Gossamer Bio’s total shares outstanding.

Does Blackrock own Gossamer Bio?

BlackRock is not among the top 10 institutional shareholders of Gossamer Bio.

Who is Gossamer Bio’s biggest shareholder by percentage of total assets invested?

Arch venture management is Gossamer Bio’s biggest shareholder by percentage of total assets invested, with 3.17% of its assets in 8.06M Gossamer Bio shares, valued at 7.29M$.

Who is the top mutual fund holder of Gossamer Bio shares?

Fidelity Select Biotechnology is the top mutual fund holder of Gossamer Bio shares, with 3.48% of its total shares outstanding invested in 7.91M Gossamer Bio shares.

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