State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Altimmune ALT Stock Holding History

State of Wisconsin Investment Board’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
Q2 		– Sell
-48,087
Closed -$240K – 2316
2025
Q1 		$240K Sell
48,087
-520
-1% -$3.29K ﹤0.01% 2056
2024
Q4 		$350K Sell
48,607
-24,579
-34% -$188K ﹤0.01% 1954
2024
Q3 		$449K Buy
73,186
+3,794
+5% +$25.7K ﹤0.01% 1920
2024
Q2 		$461K Buy
69,392
+29,687
+75% +$219K ﹤0.01% 1860
2024
Q1 		$404K Buy
+39,705
New +$404K ﹤0.01% 1856
2023
Q3 		– Sell
-18,000
Closed -$63.5K – 2510
2023
Q2 		$63.5K Sell
18,000
-26,161
-59% -$117K ﹤0.01% 2249
2023
Q1 		$186K Sell
44,161
-4,952
-10% -$58.8K ﹤0.01% 2285
2022
Q4 		$808K Buy
+49,113
New +$552K ﹤0.01% 1613
2021
Q4 		– Sell
-42,000
Closed -$475K – 2151
2021
Q3 		$475K Hold
42,000
– – ﹤0.01% 1711
2021
Q2 		$414K Buy
+42,000
New +$574K ﹤0.01% 1728

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
TCM
Tang Capital Management San Diego, California $1.97B AUM 125.1% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
KCM
Knoll Capital Management Miami, Florida $180M AUM 66.11% 1-Year Est. Return
CM
Caption Management Oklahoma City, Oklahoma $17.1B AUM 70.99% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $61.5B AUM 30.7% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

State of Wisconsin Investment Board's ALT Position: Q2 2025 in Review

State of Wisconsin Investment Board sold out of Altimmune (ALT) in Q2 2025, closing a stake of 48,087 shares — an estimated $240K sold.

State of Wisconsin Investment Board first reported a position in ALT in Q2 2021 and held it in 10 quarters. The position peaked at $808K in Q4 2022. 180 funds tracked by Wall St. Rank hold ALT as of Q2 2025.

  • State of Wisconsin Investment Board reported no remaining Altimmune position as of Q2 2025 after selling out during the quarter.
  • State of Wisconsin Investment Board sold 48,087 Altimmune shares in Q2 2025, an estimated $240K.
  • State of Wisconsin Investment Board first reported a position in Altimmune in Q2 2021 and held it in 10 quarters.
  • State of Wisconsin Investment Board's Altimmune position peaked at $808K in Q4 2022.
  • 180 funds tracked by Wall St. Rank held Altimmune as of Q2 2025.

Based on State of Wisconsin Investment Board's 13F filing for Q2 2025, filed 14 Aug 2025.