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 		$937K Buy
304,300
+144,500
+90% +$614K ﹤0.01% 6653
2025
Q4 		$577K Buy
159,800
+91,100
+133% +$397K ﹤0.01% 7369
2025
Q3 		$259K Sell
68,700
-26,700
-28% -$103K ﹤0.01% 9200
2025
Q2 		$369K Buy
95,400
+47,000
+97% +$254K ﹤0.01% 7479
2025
Q1 		$242K Sell
48,400
-66,400
-58% -$421K ﹤0.01% 8163
2024
Q4 		$828K Buy
114,800
+74,600
+186% +$570K ﹤0.01% 5741
2024
Q3 		$247K Sell
40,200
-170,200
-81% -$1.15M ﹤0.01% 8344
2024
Q2 		$1.4M Sell
210,400
-21,000
-9% -$155K ﹤0.01% 5127
2024
Q1 		$2.36M Sell
231,400
-63,900
-22% -$650K ﹤0.01% 3836
2023
Q4 		$3.32M Buy
+295,300
New +$1.23M ﹤0.01% 3472
2023
Q3 		– Sell
-12,500
Closed -$44.1K – 8555
2023
Q2 		$44.1K Sell
12,500
-355,200
-97% -$1.59M ﹤0.01% 8237
2023
Q1 		$1.55M Buy
367,700
+289,900
+373% +$3.44M ﹤0.01% 4254
2022
Q4 		$1.28M Sell
77,800
-121,800
-61% -$1.37M ﹤0.01% 4588
2022
Q3 		$2.55M Buy
199,600
+150,400
+306% +$2.22M ﹤0.01% 3755
2022
Q2 		$576K Buy
49,200
+26,000
+112% +$160K ﹤0.01% 6479
2022
Q1 		$141K Sell
23,200
-67,200
-74% -$495K ﹤0.01% 9273
2021
Q4 		$828K Sell
90,400
-99,900
-52% -$1.06M ﹤0.01% 6284
2021
Q3 		$2.15M Buy
190,300
+78,400
+70% +$953K ﹤0.01% 4333
2021
Q2 		$1.1M Buy
111,900
+6,800
+6% +$93K ﹤0.01% 5623
2021
Q1 		$1.49M Buy
105,100
+7,900
+8% +$128K ﹤0.01% 4628
2020
Q4 		$1.1M Buy
97,200
+12,100
+14% +$143K ﹤0.01% 4500
2020
Q3 		$1.12M Buy
85,100
+38,600
+83% +$772K ﹤0.01% 3907
2020
Q2 		$498K Buy
+46,500
New +$255K ﹤0.01% 5088

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.