GCP
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GSA Capital Partners’s Altimmune ALT Stock Holding History

GSA Capital Partners’s Portfolio ALT Stock Details ALT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-116,770
Closed -$440K – 1642
2025
Q3 		$440K Sell
116,770
-4,594
-4% -$17.7K 0.04% 938
2025
Q2 		$470K Buy
121,364
+90,586
+294% +$490K 0.03% 960
2025
Q1 		$154K Sell
30,778
-52,179
-63% -$331K 0.01% 1454
2024
Q4 		$598K Sell
82,957
-256,638
-76% -$1.96M 0.04% 755
2024
Q3 		$2.08M Sell
339,595
-148,530
-30% -$1.01M 0.16% 114
2024
Q2 		$3.25M Buy
488,125
+436,972
+854% +$3.22M 0.23% 30
2024
Q1 		$521K Sell
51,153
-158,309
-76% -$1.61M 0.04% 856
2023
Q4 		$2.36M Sell
209,462
-236,406
-53% -$987K 0.2% 77
2023
Q3 		$1.16M Buy
445,868
+269,676
+153% +$774K 0.1% 325
2023
Q2 		$622K Sell
176,192
-239,662
-58% -$1.08M 0.06% 602
2023
Q1 		$1.75M Buy
415,854
+374,233
+899% +$4.45M 0.17% 104
2022
Q4 		$685K Sell
41,621
-1,000
-2% -$11.2K 0.09% 413
2022
Q3 		$544K Sell
42,621
-70,296
-62% -$1.04M 0.07% 510
2022
Q2 		$1.32M Buy
112,917
+83,434
+283% +$515K 0.2% 60
2022
Q1 		$180K Sell
29,483
-19,514
-40% -$144K 0.02% 1198
2021
Q4 		$449K Buy
+48,997
New +$521K 0.06% 664
2021
Q1 		– Sell
-42,925
Closed -$484K – 1072
2020
Q4 		$484K Buy
+42,925
New +$506K 0.08% 441
2017
Q2 		– Sell
-309
Closed -$75K – 1646
2017
Q1 		$75K Buy
309
+195
+171% +$104K ﹤0.01% 1682
2016
Q4 		$111K Buy
114
+18
+19% +$16.1K 0.01% 1671
2016
Q3 		$83K Buy
+96
New +$75.3K ﹤0.01% 1711

Other funds holding ALT

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
TCM
Tang Capital Management San Diego, California $1.97B AUM 125.1% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

GSA Capital Partners's ALT Position: Q4 2025 in Review

GSA Capital Partners sold out of Altimmune (ALT) in Q4 2025, closing a stake of 116,770 shares — an estimated $440K sold.

GSA Capital Partners first reported a position in ALT in Q3 2016 and held it in 20 quarters. The position peaked at $3.25M in Q2 2024. 181 funds tracked by Wall St. Rank hold ALT as of Q4 2025.

  • GSA Capital Partners reported no remaining Altimmune position as of Q4 2025 after selling out during the quarter.
  • GSA Capital Partners sold 116,770 Altimmune shares in Q4 2025, an estimated $440K.
  • GSA Capital Partners first reported a position in Altimmune in Q3 2016 and held it in 20 quarters.
  • GSA Capital Partners's Altimmune position peaked at $3.25M in Q2 2024.
  • 181 funds tracked by Wall St. Rank held Altimmune as of Q4 2025.

Based on GSA Capital Partners's 13F filing for Q4 2025, filed 6 Feb 2026.