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Cliff Asness’s Altimmune ALT Stock Holding History

Cliff Asness’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
Q2 		$3.71M Buy
1,220,949
+1,135,495
+1,329% +$3.39M ﹤0.01% 2198
2026
Q1 		$263K Buy
85,454
+64,307
+304% +$273K ﹤0.01% 3471
2025
Q4 		$76.3K Buy
+21,147
New +$92.2K ﹤0.01% 3480
2025
Q1 		– Sell
-12,577
Closed -$90.7K – 3151
2024
Q4 		$90.7K Sell
12,577
-11,308
-47% -$86.4K ﹤0.01% 2775
2024
Q3 		$147K Sell
23,885
-17,494
-42% -$119K ﹤0.01% 2618
2024
Q2 		$275K Sell
41,379
-19,315
-32% -$143K ﹤0.01% 2304
2024
Q1 		$618K Buy
+60,694
New +$617K ﹤0.01% 1878
2023
Q2 		– Sell
-21,662
Closed -$91.4K – 2184
2023
Q1 		$91.4K Buy
+21,662
New +$257K ﹤0.01% 2122

Other funds holding ALT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
DTC
Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
TCM
TCG Crossover Management Palo Alto, California $4.16B AUM 983.43% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.1B AUM 21.36% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Cliff Asness's ALT Position: Q2 2026 in Review

Cliff Asness increased its Altimmune (ALT) stake by 1,329% in Q2 2026, buying an estimated $3.39M and bringing the position to 1,220,949 shares worth $3.71M. The position accounts for ﹤0.01% of the portfolio, ranked #2198.

Cliff Asness first reported a position in ALT in Q1 2023 and has held it in 8 quarters since. 209 funds tracked by Wall St. Rank hold ALT as of Q2 2026.

  • Cliff Asness held 1,220,949 shares of Altimmune worth $3.71M as of Q2 2026.
  • Cliff Asness bought 1,135,495 Altimmune shares in Q2 2026, an estimated $3.39M.
  • Altimmune made up ﹤0.01% of Cliff Asness's portfolio in Q2 2026, its #2198 holding.
  • Cliff Asness first reported a position in Altimmune in Q1 2023 and has held it in 8 quarters since.
  • 209 funds tracked by Wall St. Rank held Altimmune as of Q2 2026.

Based on AQR Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.