HCM
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Highbridge Capital Management’s Gossamer Bio GOSS Stock Holding History

Highbridge Capital Management’s Portfolio GOSS Stock Details GOSS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-6,221
Closed -$612K – 317
2025
Q2 		$612K Hold
6,221
– – 0.02% 116
2025
Q1 		$547K Sell
6,221
-1,250
-17% -$116K 0.02% 96
2024
Q4 		$541K Hold
7,471
– – 0.02% 139
2024
Q3 		$590K Hold
7,471
– – 0.02% 129
2024
Q2 		$538K Hold
7,471
– – 0.02% 114
2024
Q1 		$705K Sell
7,471
-8,910
-54% -$785K 0.03% 109
2023
Q4 		$1.2M Sell
16,381
-21,510
-57% -$1.27M 0.05% 103
2023
Q3 		$2.52M Buy
+37,891
New +$3.49M 0.1% 93

Other funds holding GOSS

NMC
NEA Management Company Timonium, Maryland $1.59B AUM 234.06% 1-Year Est. Return
OCA
Octagon Capital Advisors New York $1.11B AUM 866.76% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
AVM
Arch Venture Management Chicago, Illinois $1.1B AUM 356.62% 1-Year Est. Return
SB
Samsara BioCapital Palo Alto, California $1.22B AUM 242.83% 1-Year Est. Return
PAI
Palo Alto Investors Palo Alto, California $724M AUM 96.91% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return
6CM
683 Capital Management New York $2.04B AUM 94.26% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Highbridge Capital Management's GOSS Position: Q3 2025 in Review

Highbridge Capital Management sold out of Gossamer Bio (GOSS) in Q3 2025, closing a stake of 6,221 shares — an estimated $612K sold.

Highbridge Capital Management first reported a position in GOSS in Q3 2023 and held it in 8 quarters. The position peaked at $2.52M in Q3 2023. 162 funds tracked by Wall St. Rank hold GOSS as of Q3 2025.

  • Highbridge Capital Management reported no remaining Gossamer Bio position as of Q3 2025 after selling out during the quarter.
  • Highbridge Capital Management sold 6,221 Gossamer Bio shares in Q3 2025, an estimated $612K.
  • Highbridge Capital Management first reported a position in Gossamer Bio in Q3 2023 and held it in 8 quarters.
  • Highbridge Capital Management's Gossamer Bio position peaked at $2.52M in Q3 2023.
  • 162 funds tracked by Wall St. Rank held Gossamer Bio as of Q3 2025.

Based on Highbridge Capital Management's 13F filing for Q3 2025, filed 10 Nov 2025.