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 		– Sell
-1,783,950
Closed -$7.57M – 11464
2025
Q4 		$6.44M Buy
1,783,950
+1,503,751
+537% +$6.56M ﹤0.01% 2878
2025
Q3 		$1.06M Buy
+280,199
New +$1.08M ﹤0.01% 6194
2025
Q2 		– Sell
-152,642
Closed -$826K – 9529
2025
Q1 		$763K Sell
152,642
-126,008
-45% -$798K ﹤0.01% 6067
2024
Q4 		$2.01M Sell
278,650
-104,013
-27% -$795K ﹤0.01% 4091
2024
Q3 		$2.35M Buy
382,663
+246,412
+181% +$1.67M ﹤0.01% 4143
2024
Q2 		$906K Buy
136,251
+34,674
+34% +$256K ﹤0.01% 5950
2024
Q1 		$1.03M Sell
101,577
-478,867
-83% -$4.87M ﹤0.01% 5351
2023
Q4 		$6.53M Buy
580,444
+521,495
+885% +$2.18M ﹤0.01% 2486
2023
Q3 		$153K Sell
58,949
-231,327
-80% -$664K ﹤0.01% 7770
2023
Q2 		$1.02M Buy
290,276
+107,521
+59% +$483K ﹤0.01% 5154
2023
Q1 		$771K Sell
182,755
-62,388
-25% -$741K ﹤0.01% 5523
2022
Q4 		$4.03M Buy
245,143
+14,580
+6% +$164K ﹤0.01% 2778
2022
Q3 		$2.94M Buy
230,563
+186,349
+421% +$2.75M ﹤0.01% 3491
2022
Q2 		$517K Sell
44,214
-2,520
-5% -$15.5K ﹤0.01% 6679
2022
Q1 		$285K Buy
46,734
+8,680
+23% +$63.9K ﹤0.01% 8471
2021
Q4 		$349K Buy
38,054
+16,337
+75% +$174K ﹤0.01% 7897
2021
Q3 		$245K Sell
21,717
-163,087
-88% -$1.98M ﹤0.01% 8542
2021
Q2 		$1.82M Buy
184,804
+90,775
+97% +$1.24M ﹤0.01% 4505
2021
Q1 		$1.33M Buy
94,029
+63,204
+205% +$1.02M ﹤0.01% 4874
2020
Q4 		$348K Buy
+30,825
New +$363K ﹤0.01% 6206
2019
Q1 		– Sell
-10,301
Closed -$21K – 4953
2018
Q4 		$21K Buy
+10,301
New +$36.5K ﹤0.01% 4789
2013
Q3 		– Sell
-353
Closed -$168K – 2677
2013
Q2 		$168K Buy
+353
New +$175K ﹤0.01% 2309

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.