Gossamer Bio Ownership

Who are the major shareholders and have insiders been buying or selling?


Recent Insider Transactions

DB:4GB Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
27 Mar 24Sell€24,744Faheem HasnainIndividual23,172€1.07
27 Mar 24Sell€6,867Bryan GiraudoIndividual6,430€1.07
27 Mar 24Sell€6,867Christian WaageIndividual6,430€1.07
18 Mar 24Sell€4,914Caryn PetersonIndividual4,018€1.22
18 Mar 24Sell€4,914Richard ArandaIndividual4,018€1.22
15 Nov 23Buy€23,208Sandra MilliganIndividual32,000€0.73
13 Nov 23Buy€105,532Bryan GiraudoIndividual200,000€0.53
24 Jul 23Buy€18,062,553New Enterprise Associates, Inc.Company12,260,536€1.47
22 Jun 23Sell€2,135Richard ArandaIndividual1,814€1.18

Insider Trading Volume

Insider Buying: 4GB insiders have only sold shares in the past 3 months.


Ownership Breakdown

What is the ownership structure of 4GB?
Owner TypeNumber of SharesOwnership Percentage
Private Companies4,8020.00213%
Individual Insiders6,687,8902.96%
General Public9,764,3334.33%
VC/PE Firms27,896,97712.4%
Institutions181,228,24880.3%

Dilution of Shares: Shareholders have been substantially diluted in the past year, with total shares outstanding growing by 137.2%.


Top Shareholders

Top 25 shareholders own 74.87% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
7.02%
New Enterprise Associates, Inc.
15,838,009€9.9m0.7%0.58%
5.44%
FMR LLC
12,263,918€7.7m1,820%no data
5.35%
Artal Group S.A.
12,058,968€7.6m88.4%0.24%
5.16%
The Vanguard Group, Inc.
11,635,634€7.3m3.26%no data
4.08%
EcoR1 Capital, LLC
9,195,404€5.8m0%0.2%
4.07%
Octagon Capital Advisors LP
9,187,883€5.8m12.2%1.1%
3.57%
Arch Venture Partners, L.P.
8,055,916€5.0m0%0.42%
3.08%
Platinum Investment Management Limited
6,954,110€4.4m29.8%0.13%
2.85%
Eversept Partners, L.P.
6,432,715€4.0m45.3%0.37%
2.72%
Citadel Advisors LLC
6,140,232€3.8m-0.45%no data
2.72%
Farallon Capital Management, L.L.C.
6,130,272€3.8m0%0.03%
2.72%
Samsara BioCapital LLC
6,130,268€3.8m0%0.84%
2.72%
Silverarc Capital Management, LLC
6,130,268€3.8m0%1.26%
2.64%
Palo Alto Investors LP
5,958,888€3.7m-8.75%0.45%
2.47%
Morgan Stanley, Investment Banking and Brokerage Investments
5,568,872€3.5m1,330%no data
2.29%
Faheem Hasnain
5,156,366€3.2m-0.45%no data
2.24%
Madison Avenue Partners, LP
5,054,472€3.2m-17.6%0.47%
2.2%
Hillhouse Investment Management, Ltd.
4,974,041€3.1m0%0.02%
1.87%
Millennium Management LLC
4,224,610€2.6m-40.1%no data
1.84%
Armistice Capital LLC
4,156,000€2.6m-16.1%0.07%
1.69%
Deutsche Asset & Wealth Management
3,807,661€2.4m0%no data
1.64%
T. Rowe Price Group, Inc.
3,695,227€2.3m0%no data
1.53%
Monashee Investment Management, LLC
3,459,854€2.2m-34.8%0.4%
1.5%
BlackRock, Inc.
3,378,646€2.1m-24.4%no data
1.47%
683 Capital Management, LLC
3,314,700€2.1m92%0.2%
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