Two Sigma Advisers
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Two Sigma Advisers’s Altimmune ALT Stock Holding History

Two Sigma Advisers’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
2026
Q1 		– Sell
-793,900
Closed -$2.87M – 95
2025
Q4 		$2.87M Sell
793,900
-634,500
-44% -$2.77M 0.01% 1042
2025
Q3 		$5.39M Buy
1,428,400
+1,299,200
+1,006% +$5.02M 0.01% 721
2025
Q2 		$500K Sell
129,200
-135,100
-51% -$731K ﹤0.01% 1754
2025
Q1 		$1.32M Buy
264,300
+198,600
+302% +$1.26M ﹤0.01% 1336
2024
Q4 		$474K Sell
65,700
-22,700
-26% -$173K ﹤0.01% 1795
2024
Q3 		$543K Buy
88,400
+19,000
+27% +$129K ﹤0.01% 1665
2024
Q2 		$462K Buy
+69,400
New +$512K ﹤0.01% 1911
2023
Q4 		– Sell
-937,000
Closed -$2.44M – 2487
2023
Q3 		$2.44M Sell
937,000
-20,800
-2% -$59.7K 0.01% 1091
2023
Q2 		$3.38M Buy
957,800
+6,500
+0.7% +$29.2K 0.01% 941
2023
Q1 		$4.01M Buy
951,300
+26,000
+3% +$309K 0.01% 903
2022
Q4 		$15.2M Buy
925,300
+56,500
+7% +$635K 0.04% 406
2022
Q3 		$11.1M Buy
868,800
+102,200
+13% +$1.51M 0.03% 473
2022
Q2 		$8.97M Buy
766,600
+75,800
+11% +$467K 0.03% 543
2022
Q1 		$4.21M Buy
690,800
+133,600
+24% +$984K 0.01% 881
2021
Q4 		$5.1M Buy
+557,200
New +$5.92M 0.01% 758
2021
Q2 		– Sell
-236,200
Closed -$3.34M – 2435
2021
Q1 		$3.34M Sell
236,200
-108,400
-31% -$1.75M 0.01% 1037
2020
Q4 		$3.89M Sell
344,600
-147,300
-30% -$1.74M 0.01% 926
2020
Q3 		$6.49M Buy
+491,900
New +$9.83M 0.02% 677
2017
Q1 		– Sell
-115
Closed -$112K – 2331
2016
Q4 		$112K Buy
+115
New +$103K ﹤0.01% 2257

Other funds holding ALT

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Alyeska Investment Group
Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return

Two Sigma Advisers's ALT Position: Q1 2026 in Review

Two Sigma Advisers sold out of Altimmune (ALT) in Q1 2026, closing a stake of 793,900 shares — an estimated $2.87M sold.

Two Sigma Advisers first reported a position in ALT in Q4 2016 and held it in 19 quarters. The position peaked at $15.2M in Q4 2022. 173 funds tracked by Wall St. Rank hold ALT as of Q1 2026.

  • Two Sigma Advisers reported no remaining Altimmune position as of Q1 2026 after selling out during the quarter.
  • Two Sigma Advisers sold 793,900 Altimmune shares in Q1 2026, an estimated $2.87M.
  • Two Sigma Advisers first reported a position in Altimmune in Q4 2016 and held it in 19 quarters.
  • Two Sigma Advisers's Altimmune position peaked at $15.2M in Q4 2022.
  • 173 funds tracked by Wall St. Rank held Altimmune as of Q1 2026.

Based on Two Sigma Advisers's 13F filing for Q1 2026.