Mariner
GOSS icon

Mariner’s Gossamer Bio GOSS Stock Holding History

Mariner’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
Q2 		$97.9K Buy
594,719
+176,315
+42% +$49.2K ﹤0.01% 3335
2026
Q1 		$137K Buy
418,404
+353,954
+549% +$556K ﹤0.01% 3263
2025
Q4 		$200K Buy
64,450
+41,981
+187% +$120K ﹤0.01% 3172
2025
Q3 		$59.1K Buy
+22,469
New +$49.5K ﹤0.01% 3429
2020
Q4 		– Sell
-23,960
Closed -$297K – 792
2020
Q3 		$297K Buy
23,960
+400
+2% +$5.3K ﹤0.01% 672
2020
Q2 		$306K Buy
+23,560
New +$296K ﹤0.01% 672

Other funds holding GOSS

D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
6CM
683 Capital Management New York $2.04B AUM 94.26% 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

Mariner's GOSS Position: Q2 2026 in Review

Mariner increased its Gossamer Bio (GOSS) stake by 42% in Q2 2026, buying an estimated $49.2K and bringing the position to 594,719 shares worth $97.9K. The position accounts for ﹤0.01% of the portfolio, ranked #3335.

Mariner first reported a position in GOSS in Q2 2020 and has held it in 6 quarters since. The position peaked at $306K in Q2 2020. 170 funds tracked by Wall St. Rank hold GOSS as of Q2 2026.

  • Mariner held 594,719 shares of Gossamer Bio worth $97.9K as of Q2 2026.
  • Mariner bought 176,315 Gossamer Bio shares in Q2 2026, an estimated $49.2K.
  • Gossamer Bio made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #3335 holding.
  • Mariner first reported a position in Gossamer Bio in Q2 2020 and has held it in 6 quarters since.
  • Mariner's Gossamer Bio position peaked at $306K in Q2 2020.
  • 170 funds tracked by Wall St. Rank held Gossamer Bio as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.