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DAFNA Capital Management’s Gossamer Bio GOSS Stock Holding History

DAFNA 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
-849,921
Closed -$1.05M – 78
2025
Q2 		$1.05M Sell
849,921
-57,933
-6% -$63.2K 0.29% 57
2025
Q1 		$999K Sell
907,854
-501,408
-36% -$580K 0.28% 59
2024
Q4 		$1.27M Sell
1,409,262
-10,000
-0.7% -$8.57K 0.32% 51
2024
Q3 		$1.4M Buy
1,419,262
+10,000
+0.7% +$9.62K 0.33% 57
2024
Q2 		$1.27M Hold
1,409,262
– – 0.3% 56
2024
Q1 		$1.66M Sell
1,409,262
-66,790
-5% -$73.5K 0.38% 49
2023
Q4 		$1.35M Hold
1,476,052
– – 0.32% 55
2023
Q3 		$1.23M Buy
+1,476,052
New +$1.7M 0.38% 50

Other funds holding GOSS

NMC
NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return
OCA
Octagon Capital Advisors New York $904M AUM 737.04% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 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 $677M AUM 322.07% 1-Year Est. Return
SB
Samsara BioCapital Palo Alto, California $1.03B AUM 214.94% 1-Year Est. Return
PAI
Palo Alto Investors Palo Alto, California $654M AUM 77.8% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return
6CM
683 Capital Management New York $1.92B AUM 85.52% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

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

DAFNA Capital Management sold out of Gossamer Bio (GOSS) in Q3 2025, closing a stake of 849,921 shares — an estimated $1.05M sold.

DAFNA Capital Management first reported a position in GOSS in Q3 2023 and held it in 8 quarters. The position peaked at $1.66M in Q1 2024. 164 funds tracked by Wall St. Rank hold GOSS as of Q3 2025.

  • DAFNA Capital Management reported no remaining Gossamer Bio position as of Q3 2025 after selling out during the quarter.
  • DAFNA Capital Management sold 849,921 Gossamer Bio shares in Q3 2025, an estimated $1.05M.
  • DAFNA Capital Management first reported a position in Gossamer Bio in Q3 2023 and held it in 8 quarters.
  • DAFNA Capital Management's Gossamer Bio position peaked at $1.66M in Q1 2024.
  • 164 funds tracked by Wall St. Rank held Gossamer Bio as of Q3 2025.

Based on DAFNA Capital Management's 13F filing for Q3 2025, filed 14 Nov 2025.