Marshall Wace
ALT icon

Marshall Wace’s Altimmune ALT Stock Holding History

Marshall Wace’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 		$20.8M Buy
6,841,055
+2,823,154
+70% +$8.43M 0.02% 713
2026
Q1 		$12.4M Buy
4,017,901
+3,095,124
+335% +$13.1M 0.01% 880
2025
Q4 		$3.33M Buy
+922,777
New +$4.02M ﹤0.01% 1336
2025
Q3 		– Sell
-22,100
Closed -$85.5K – 2856
2025
Q2 		$85.5K Sell
22,100
-1,146,238
-98% -$6.2M ﹤0.01% 2561
2025
Q1 		$5.84M Buy
1,168,338
+1,102,821
+1,683% +$6.99M 0.01% 989
2024
Q4 		$472K Buy
+65,517
New +$501K ﹤0.01% 2051
2024
Q1 		– Sell
-86,132
Closed -$969K – 2404
2023
Q4 		$969K Sell
86,132
-1,712,608
-95% -$7.15M ﹤0.01% 1488
2023
Q3 		$4.68M Sell
1,798,740
-260,550
-13% -$748K 0.01% 890
2023
Q2 		$7.27M Buy
2,059,290
+462,160
+29% +$2.07M 0.01% 873
2023
Q1 		$6.74M Buy
1,597,130
+357,336
+29% +$4.25M 0.01% 859
2022
Q4 		$20.4M Buy
1,239,794
+140,880
+13% +$1.58M 0.05% 444
2022
Q3 		$14M Buy
1,098,914
+828,584
+307% +$12.2M 0.03% 634
2022
Q2 		$3.16M Buy
+270,330
New +$1.67M 0.01% 1686
2021
Q4 		– Sell
-478,923
Closed -$5.42M – 3828
2021
Q3 		$5.42M Sell
478,923
-449,793
-48% -$5.47M 0.02% 891
2021
Q2 		$9.15M Buy
+928,716
New +$12.7M 0.04% 524
2021
Q1 		– Sell
-31,049
Closed -$350K – 2435
2020
Q4 		$350K Buy
+31,049
New +$366K ﹤0.01% 1611

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
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
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return

Marshall Wace's ALT Position: Q2 2026 in Review

Marshall Wace increased its Altimmune (ALT) stake by 70% in Q2 2026, buying an estimated $8.43M and bringing the position to 6,841,055 shares worth $20.8M. The position accounts for 0.02% of the portfolio, ranked #713.

Marshall Wace first reported a position in ALT in Q4 2020 and has held it in 16 quarters since. 211 funds tracked by Wall St. Rank hold ALT as of Q2 2026.

  • Marshall Wace held 6,841,055 shares of Altimmune worth $20.8M as of Q2 2026.
  • Marshall Wace bought 2,823,154 Altimmune shares in Q2 2026, an estimated $8.43M.
  • Altimmune made up 0.02% of Marshall Wace's portfolio in Q2 2026, its #713 holding.
  • Marshall Wace first reported a position in Altimmune in Q4 2020 and has held it in 16 quarters since.
  • 211 funds tracked by Wall St. Rank held Altimmune as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.