JO
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John Overdeck’s Gossamer Bio GOSS Stock Holding History

John Overdeck’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 		$1.22M Buy
7,432,001
+2,651,150
+55% +$740K ﹤0.01% 3454
2026
Q1 		$1.57M Buy
4,780,851
+1,383,741
+41% +$2.17M ﹤0.01% 2944
2025
Q4 		$10.5M Buy
3,397,110
+1,109,859
+49% +$3.17M 0.01% 1085
2025
Q3 		$6.02M Buy
2,287,251
+542,124
+31% +$1.19M 0.01% 1312
2025
Q2 		$2.15M Buy
1,745,127
+469,715
+37% +$512K ﹤0.01% 1791
2025
Q1 		$1.4M Buy
1,275,412
+384,133
+43% +$444K ﹤0.01% 1971
2024
Q4 		$806K Buy
891,279
+260,318
+41% +$223K ﹤0.01% 2308
2024
Q3 		$622K Buy
630,961
+320,982
+104% +$309K ﹤0.01% 2357
2024
Q2 		$279K Sell
309,979
-498,792
-62% -$373K ﹤0.01% 2627
2024
Q1 		$954K Sell
808,771
-213,490
-21% -$235K ﹤0.01% 1985
2023
Q4 		$933K Buy
1,022,261
+486,166
+91% +$359K ﹤0.01% 2122
2023
Q3 		$446K Sell
536,095
-1,033,273
-66% -$1.19M ﹤0.01% 2324
2023
Q2 		$1.88M Sell
1,569,368
-305,951
-16% -$381K ﹤0.01% 1473
2023
Q1 		$2.36M Buy
1,875,319
+412,199
+28% +$789K 0.01% 1279
2022
Q4 		$3.17M Buy
1,463,120
+537,393
+58% +$4.42M 0.01% 1084
2022
Q3 		$11.1M Buy
925,727
+680,167
+277% +$8.44M 0.04% 461
2022
Q2 		$2.06M Sell
245,560
-203,497
-45% -$1.58M 0.01% 1190
2022
Q1 		$3.9M Buy
449,057
+116,806
+35% +$1.13M 0.01% 1033
2021
Q4 		$3.76M Buy
332,251
+142,891
+75% +$1.7M 0.01% 1387
2021
Q3 		$2.38M Sell
189,360
-288,700
-60% -$2.66M 0.01% 1826
2021
Q2 		$3.88M Sell
478,060
-220,015
-32% -$1.91M 0.01% 1349
2021
Q1 		$6.46M Buy
698,075
+529,220
+313% +$5.34M 0.02% 913
2020
Q4 		$1.63M Sell
168,855
-188,708
-53% -$1.86M ﹤0.01% 1624
2020
Q3 		$4.44M Buy
357,563
+64,544
+22% +$856K 0.02% 855
2020
Q2 		$3.81M Buy
293,019
+265,553
+967% +$3.34M 0.02% 772
2020
Q1 		$279K Buy
+27,466
New +$359K ﹤0.01% 2374

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

John Overdeck's GOSS Position: Q2 2026 in Review

John Overdeck increased its Gossamer Bio (GOSS) stake by 55% in Q2 2026, buying an estimated $740K and bringing the position to 7,432,001 shares worth $1.22M. The position accounts for ﹤0.01% of the portfolio, ranked #3454.

John Overdeck first reported a position in GOSS in Q1 2020 and has held it in 26 quarters since. The position peaked at $11.1M in Q3 2022. 170 funds tracked by Wall St. Rank hold GOSS as of Q2 2026.

  • John Overdeck held 7,432,001 shares of Gossamer Bio worth $1.22M as of Q2 2026.
  • John Overdeck bought 2,651,150 Gossamer Bio shares in Q2 2026, an estimated $740K.
  • Gossamer Bio made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #3454 holding.
  • John Overdeck first reported a position in Gossamer Bio in Q1 2020 and has held it in 26 quarters since.
  • John Overdeck's Gossamer Bio position peaked at $11.1M in Q3 2022.
  • 170 funds tracked by Wall St. Rank held Gossamer Bio as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.