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Gossamer Bio, Inc. (GOSS)

10.38 -0.31 (-2.90%)
At close: October 30 at 4:00:01 PM EDT
10.30 -0.08 (-0.78%)
After hours: October 30 at 6:20:59 PM EDT

Recent transactions

Updated 7d ago
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Gossamer Bio recorded 7 insider awardson 2026-08-24, totaling $190,999.81in reported value. Six awards were valued at $0.00; the remaining award values were $24,999.98and $165,999.83. All 7 transactions were awardsand were filed by 5 insiders.

Major Holders

Breakdown
1.43% % of Shares Held by All Insider
85.68% % of Shares Held by Institutions
86.92% % of Float Held by Institutions
176 Number of Institutions Holding Shares

Top Institutional Holders

Holder Shares Date Reported % Out Value
Shaw D.E. & Co., Inc.
511.99k Jun 30, 2026 8.37% 5,314,466
683 Capital Management LLC
489.99k Jun 30, 2026 8.01% 5,086,054
DeepCurrents Investment Group, LLC
470.81k Jun 30, 2026 7.70% 4,887,049
Context Capital Management, LLC
361.83k Jun 30, 2026 5.92% 3,755,805
Worth Venture Partners, Llc
312.72k Jun 30, 2026 5.11% 3,246,075
AQR Capital Management, LLC
195.38k Jun 30, 2026 3.19% 2,027,992
GSA Capital Partners LLP
187.34k Jun 30, 2026 3.06% 1,944,558
Wolverine Asset Management, LLC
161.18k Jun 30, 2026 2.64% 1,673,089
Renaissance Technologies, LLC
145.37k Jun 30, 2026 2.38% 1,508,982
Kalehua Capital Management LLC
139.37k Jun 30, 2026 2.28% 1,446,629

Top Mutual Fund Holders

Holder Shares Date Reported % Out Value
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund
86.39k Jun 30, 2026 1.41% 896,697
iShares Trust-iShares Biotechnology ETF
43.76k Sep 30, 2026 0.72% 454,228
Fidelity Concord Street Trust-Fidelity Nasdaq Composite Index Fund
33.09k Aug 31, 2026 0.54% 343,494
VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund
28.04k Jun 30, 2026 0.46% 291,065
Fidelity Concord Street Trust-Fidelity Extended Market Index Fund
19.76k Aug 31, 2026 0.32% 205,067
VANGUARD SCOTTSDALE FUNDS-Vanguard Russell 2000 Index Fund
12.21k May 31, 2026 0.20% 126,770
SCHWAB STRATEGIC TRUST-Schwab U.S. Small-Cap ETF
12.22k Aug 31, 2026 0.20% 126,874
VANGUARD WORLD FUND-Vanguard Health Care Index Fund
6.77k May 31, 2026 0.11% 70,314
Invesco Exchange-Traded Fund Trust-Invesco RAFI US 1500 Small-Mid ETF
6.97k Sep 30, 2026 0.11% 72,327
GOLDMAN SACHS TRUST-Goldman Sachs Absolute Return Tracker Fund
5.53k Aug 31, 2026 0.09% 57,422

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