BlackRock
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BlackRock’s Gossamer Bio GOSS Stock Holding History

BlackRock’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 		$1.26M Sell
95,874
-114,460
-54% -$2.56M ﹤0.01% 4285
2026
Q1 		$5.53M Sell
210,334
-2,877
-1% -$362K ﹤0.01% 3788
2025
Q4 		$52.9M Buy
213,211
+40,135
+23% +$9.16M ﹤0.01% 2477
2025
Q3 		$36.4M Buy
173,076
+21,294
+14% +$3.75M ﹤0.01% 2714
2025
Q2 		$14.9M Buy
151,782
+113,372
+295% +$9.9M ﹤0.01% 3184
2025
Q1 		$3.38M Buy
38,410
+545
+1% +$50.4K ﹤0.01% 3801
2024
Q4 		$2.74M Buy
37,865
+2,794
+8% +$192K ﹤0.01% 3947
2024
Q3 		$2.77M Sell
35,071
-73
-0.2% -$5.62K ﹤0.01% 3901
2024
Q2 		$2.53M Sell
35,144
-3,473
-9% -$208K ﹤0.01% 3900
2024
Q1 		$3.65M Sell
38,617
-3,616
-9% -$318K ﹤0.01% 3804
2023
Q4 		$3.08M Sell
42,233
-13,600
-24% -$804K ﹤0.01% 3879
2023
Q3 		$3.72M Buy
55,833
+31,933
+134% +$2.94M ﹤0.01% 3784
2023
Q2 		$2.29M Sell
23,900
-36,021
-60% -$3.59M ﹤0.01% 3999
2023
Q1 		$6.04M Sell
59,921
-7,742
-11% -$1.19M ﹤0.01% 3552
2022
Q4 		$11.7M Sell
67,663
-1,189
-2% -$783K ﹤0.01% 3322
2022
Q3 		$66M Buy
68,852
+4,277
+7% +$4.25M ﹤0.01% 2245
2022
Q2 		$43.2M Sell
64,575
-2,039
-3% -$1.26M ﹤0.01% 2584
2022
Q1 		$46.3M Sell
66,614
-1,257
-2% -$970K ﹤0.01% 2638
2021
Q4 		$61.4M Buy
67,871
+835
+1% +$793K ﹤0.01% 2520
2021
Q3 		$67.4M Sell
67,036
-662
-1% -$488K ﹤0.01% 2462
2021
Q2 		$44M Buy
67,698
+631
+0.9% +$438K ﹤0.01% 2788
2021
Q1 		$49.6M Buy
67,067
+8,292
+14% +$6.69M ﹤0.01% 2615
2020
Q4 		$45.5M Buy
58,775
+780
+1% +$615K ﹤0.01% 2535
2020
Q3 		$57.6M Buy
57,995
+4,306
+8% +$4.57M ﹤0.01% 2207
2020
Q2 		$55.8M Buy
53,689
+9,852
+22% +$9.9M ﹤0.01% 2185
2020
Q1 		$35.6M Sell
43,837
-495
-1% -$517K ﹤0.01% 2276
2019
Q4 		$55.4M Buy
44,332
+9,297
+27% +$15M ﹤0.01% 2302
2019
Q3 		$47.1M Buy
35,035
+18,845
+116% +$30M ﹤0.01% 2324
2019
Q2 		$28.7M Buy
16,190
+6,261
+63% +$9.6M ﹤0.01% 2644
2019
Q1 		$17.2M Buy
+9,929
New +$16.6M ﹤0.01% 2824

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
DeepCurrents Investment Group
DeepCurrents Investment Group New York $3.3B AUM 12.57% 1-Year Est. Return
Context Capital Management
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
GSA Capital Partners
GSA Capital Partners London, United Kingdom $1.59B AUM 39.81% 1-Year Est. Return
Wolverine Asset Management
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

BlackRock's GOSS Position: Q2 2026 in Review

BlackRock reduced its Gossamer Bio (GOSS) stake by 54% in Q2 2026, selling an estimated $2.56M and leaving 95,874 shares worth $1.26M. The position accounts for ﹤0.01% of the portfolio, ranked #4285.

BlackRock first reported a position in GOSS in Q1 2019 and has held it in 30 quarters since. The position peaked at $67.4M in Q3 2021. 166 funds tracked by Wall St. Rank hold GOSS as of Q2 2026.

  • BlackRock held 95,874 shares of Gossamer Bio worth $1.26M as of Q2 2026.
  • BlackRock sold 114,460 Gossamer Bio shares in Q2 2026, an estimated $2.56M.
  • Gossamer Bio made up ﹤0.01% of BlackRock's portfolio in Q2 2026, its #4285 holding.
  • BlackRock first reported a position in Gossamer Bio in Q1 2019 and has held it in 30 quarters since.
  • BlackRock's Gossamer Bio position peaked at $67.4M in Q3 2021.
  • 166 funds tracked by Wall St. Rank held Gossamer Bio as of Q2 2026.

Based on BlackRock's 13F filing for Q2 2026, filed 7 Aug 2026.