Jane Street
ALT icon

Jane Street’s Altimmune ALT Stock Holding History

Jane Street’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 		$174K Sell
56,400
-48,000
-46% -$204K ﹤0.01% 10272
2025
Q4 		$377K Buy
104,400
+45,700
+78% +$199K ﹤0.01% 8328
2025
Q3 		$221K Buy
58,700
+26,300
+81% +$102K ﹤0.01% 9479
2025
Q2 		$125K Buy
32,400
+600
+2% +$3.25K ﹤0.01% 8850
2025
Q1 		$159K Sell
31,800
-42,200
-57% -$267K ﹤0.01% 8595
2024
Q4 		$534K Buy
74,000
+25,200
+52% +$193K ﹤0.01% 6647
2024
Q3 		$300K Sell
48,800
-200
-0.4% -$1.35K ﹤0.01% 8042
2024
Q2 		$326K Buy
49,000
+4,700
+11% +$34.7K ﹤0.01% 7677
2024
Q1 		$451K Sell
44,300
-44,800
-50% -$456K ﹤0.01% 6849
2023
Q4 		$1M Buy
+89,100
New +$372K ﹤0.01% 5551
2023
Q3 		– Sell
-31,000
Closed -$109K – 8556
2023
Q2 		$109K Sell
31,000
-135,600
-81% -$609K ﹤0.01% 7967
2023
Q1 		$703K Buy
+166,600
New +$1.98M ﹤0.01% 5708
2022
Q4 		– Sell
-117,800
Closed -$1.5M – 9060
2022
Q3 		$1.5M Buy
+117,800
New +$1.74M ﹤0.01% 4680
2022
Q1 		– Sell
-49,100
Closed -$450K – 10207
2021
Q4 		$450K Sell
49,100
-15,000
-23% -$159K ﹤0.01% 7456
2021
Q3 		$725K Sell
64,100
-36,300
-36% -$441K ﹤0.01% 6566
2021
Q2 		$989K Buy
100,400
+17,000
+20% +$232K ﹤0.01% 5871
2021
Q1 		$1.18M Buy
83,400
+6,200
+8% +$100K ﹤0.01% 5141
2020
Q4 		$871K Buy
+77,200
New +$910K ﹤0.01% 4885

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

Jane Street's ALT Position: Q1 2026 in Review

Jane Street sold out of Altimmune (ALT) in Q1 2026, closing a stake of 1,783,950 shares — an estimated $7.57M sold.

Jane Street first reported a position in ALT in Q2 2013 and held it in 22 quarters. The position peaked at $6.53M in Q4 2023. 173 funds tracked by Wall St. Rank hold ALT as of Q1 2026.

  • Jane Street reported no remaining Altimmune position as of Q1 2026 after selling out during the quarter.
  • Jane Street sold 1,783,950 Altimmune shares in Q1 2026, an estimated $7.57M.
  • Jane Street first reported a position in Altimmune in Q2 2013 and held it in 22 quarters.
  • Jane Street's Altimmune position peaked at $6.53M in Q4 2023.
  • 173 funds tracked by Wall St. Rank held Altimmune as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.