6CM
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683 Capital Management’s Gossamer Bio GOSS Stock Holding History

683 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
2026
Q1 		– Sell
-3,751
Closed -$930K – 247
2025
Q4 		$930K Hold
3,751
– – 0.04% 146
2025
Q3 		$789K Hold
3,751
– – 0.04% 122
2025
Q2 		$369K Buy
+3,751
New +$327K 0.02% 123

Other funds holding GOSS

D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
DIG
DeepCurrents Investment Group New York $3.3B AUM 12.57% 1-Year Est. Return
CCM
Context Capital Management Lajolla, California $5.15B AUM 1.28% 1-Year Est. Return
WVP
Worth Venture Partners Fort Lee, New Jersey $44.3M AUM 34.55% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
GCP
GSA Capital Partners London, United Kingdom $1.59B AUM 39.81% 1-Year Est. Return
WAM
Wolverine Asset Management Chicago, Illinois $11.4B AUM 5.65% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
KCM
Kalehua Capital Management Dallas, Texas $174M AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

683 Capital Management's GOSS Position: Q2 2026 in Review

683 Capital Management increased its Gossamer Bio (GOSS) stake by 684% in Q2 2026, buying an estimated $9.55M and bringing the position to 489,986 shares worth $6.45M. The position accounts for 0.32% of the portfolio, ranked #64.

683 Capital Management first reported a position in GOSS in Q3 2023 and has held it in 12 quarters since. The position peaked at $16.1M in Q4 2025. 166 funds tracked by Wall St. Rank hold GOSS as of Q2 2026.

  • 683 Capital Management held 489,986 shares of Gossamer Bio worth $6.45M as of Q2 2026.
  • 683 Capital Management bought 427,486 Gossamer Bio shares in Q2 2026, an estimated $9.55M.
  • Gossamer Bio made up 0.32% of 683 Capital Management's portfolio in Q2 2026, its #64 holding.
  • 683 Capital Management first reported a position in Gossamer Bio in Q3 2023 and has held it in 12 quarters since.
  • 683 Capital Management's Gossamer Bio position peaked at $16.1M in Q4 2025.
  • 166 funds tracked by Wall St. Rank held Gossamer Bio as of Q2 2026.

Based on 683 Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.