Millennium Management
GOSS icon

Millennium Management’s Gossamer Bio GOSS Stock Holding History

Millennium 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 		$61.6K Sell
187,418
-3,396,870
-95% -$5.34M ﹤0.01% 5410
2025
Q4 		$11.1M Sell
3,584,288
-35,041
-1% -$100K ﹤0.01% 2153
2025
Q3 		$9.52M Buy
3,619,329
+3,123,081
+629% +$6.88M ﹤0.01% 2436
2025
Q2 		$610K Sell
496,248
-2,181,788
-81% -$2.38M ﹤0.01% 4764
2025
Q1 		$2.95M Sell
2,678,036
-908,031
-25% -$1.05M ﹤0.01% 3412
2024
Q4 		$3.24M Buy
3,586,067
+457,179
+15% +$392K ﹤0.01% 3228
2024
Q3 		$3.09M Sell
3,128,888
-2,468,490
-44% -$2.37M ﹤0.01% 3275
2024
Q2 		$5.04M Sell
5,597,378
-898,042
-14% -$672K ﹤0.01% 2721
2024
Q1 		$7.66M Buy
6,495,420
+2,270,810
+54% +$2.5M ﹤0.01% 2440
2023
Q4 		$3.85M Sell
4,224,610
-2,826,750
-40% -$2.09M ﹤0.01% 3013
2023
Q3 		$5.87M Buy
7,051,360
+2,844,283
+68% +$3.28M ﹤0.01% 2548
2023
Q2 		$5.05M Sell
4,207,077
-1,253,303
-23% -$1.56M ﹤0.01% 2662
2023
Q1 		$6.88M Buy
5,460,380
+834,869
+18% +$1.6M ﹤0.01% 2307
2022
Q4 		$10M Buy
4,625,511
+3,296,396
+248% +$27.1M 0.01% 2113
2022
Q3 		$15.9M Sell
1,329,115
-151,590
-10% -$1.88M 0.01% 1581
2022
Q2 		$12.4M Buy
1,480,705
+1,307,018
+753% +$10.1M 0.01% 1775
2022
Q1 		$1.51M Sell
173,687
-35,205
-17% -$340K ﹤0.01% 4121
2021
Q4 		$2.36M Sell
208,892
-299,898
-59% -$3.56M ﹤0.01% 3617
2021
Q3 		$6.39M Sell
508,790
-98,826
-16% -$910K ﹤0.01% 2585
2021
Q2 		$4.93M Buy
607,616
+566,354
+1,373% +$4.91M ﹤0.01% 2774
2021
Q1 		$382K Sell
41,262
-156,252
-79% -$1.58M ﹤0.01% 5042
2020
Q4 		$1.91M Sell
197,514
-189,670
-49% -$1.87M ﹤0.01% 3273
2020
Q3 		$4.8K Buy
387,184
+188,225
+95% +$2.5M 0.01% 1883
2020
Q2 		$2.59M Buy
198,959
+78,324
+65% +$985K ﹤0.01% 2337
2020
Q1 		$1.22M Sell
120,635
-88,046
-42% -$1.15M ﹤0.01% 2340
2019
Q4 		$3.26M Buy
+208,681
New +$4.2M ﹤0.01% 2259
2019
Q2 		– Sell
-20,135
Closed -$436K – 4192
2019
Q1 		$436K Buy
+20,135
New +$420K ﹤0.01% 3356

Other funds holding GOSS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
KCM
Kalehua Capital Management Dallas, Texas $141M AUM
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
AVM
Arch Venture Management Chicago, Illinois $677M AUM 322.07% 1-Year Est. Return
OCA
Octagon Capital Advisors New York $904M AUM 737.04% 1-Year Est. Return
SB
Samsara BioCapital Palo Alto, California $1.03B AUM 214.94% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return

Millennium Management's GOSS Position: Q1 2026 in Review

Millennium Management reduced its Gossamer Bio (GOSS) stake by 95% in Q1 2026, selling an estimated $5.34M and leaving 187,418 shares worth $61.6K. The position accounts for ﹤0.01% of the portfolio, ranked #5410.

Millennium Management first reported a position in GOSS in Q1 2019 and has held it in 27 quarters since. The position peaked at $15.9M in Q3 2022. 184 funds tracked by Wall St. Rank hold GOSS as of Q1 2026.

  • Millennium Management held 187,418 shares of Gossamer Bio worth $61.6K as of Q1 2026.
  • Millennium Management sold 3,396,870 Gossamer Bio shares in Q1 2026, an estimated $5.34M.
  • Gossamer Bio made up ﹤0.01% of Millennium Management's portfolio in Q1 2026, its #5410 holding.
  • Millennium Management first reported a position in Gossamer Bio in Q1 2019 and has held it in 27 quarters since.
  • Millennium Management's Gossamer Bio position peaked at $15.9M in Q3 2022.
  • 184 funds tracked by Wall St. Rank held Gossamer Bio as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.