Simplex Trading
ALT icon

Simplex Trading’s Altimmune ALT Stock Holding History

Simplex Trading’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 		$70.3K Buy
+22,841
New +$97K ﹤0.01% 5489
2025
Q4 		– Sell
-213,709
Closed -$932K – 8412
2025
Q3 		$805K Buy
213,709
+113,742
+114% +$439K ﹤0.01% 3273
2025
Q2 		$386K Buy
99,967
+79,146
+380% +$428K ﹤0.01% 3785
2025
Q1 		$104K Sell
20,821
-160,351
-89% -$1.02M ﹤0.01% 5008
2024
Q4 		$1.31M Buy
181,172
+48,007
+36% +$367K ﹤0.01% 2584
2024
Q3 		$817K Sell
133,165
-32,924
-20% -$223K ﹤0.01% 3109
2024
Q2 		$1.1M Buy
166,089
+19,830
+14% +$146K ﹤0.01% 2825
2024
Q1 		$1.49M Buy
146,259
+81,128
+125% +$825K ﹤0.01% 2696
2023
Q4 		$732K Sell
65,131
-3,867
-6% -$16.1K ﹤0.01% 3327
2023
Q3 		$179K Buy
68,998
+20,662
+43% +$59.3K ﹤0.01% 4462
2023
Q2 		$170K Buy
+48,336
New +$217K ﹤0.01% 4481
2023
Q1 		– Sell
-226,629
Closed -$2.69M – 8916
2022
Q4 		$3.73M Buy
226,629
+88,886
+65% +$998K ﹤0.01% 1409
2022
Q3 		$1.76M Buy
137,743
+12,481
+10% +$184K ﹤0.01% 2071
2022
Q2 		$1.47M Buy
+125,262
New +$772K ﹤0.01% 2190
2021
Q3 		– Sell
-6,985
Closed -$84.9K – 9744
2021
Q2 		$68K Buy
+6,985
New +$95.5K ﹤0.01% 7246
2020
Q2 		– Sell
-94
Closed -$516 – 7524
2020
Q1 		$0 Buy
+94
New +$216 ﹤0.01% 7517
2018
Q2 		– Sell
-14
Closed -$276 – 7304
2018
Q1 		$0 Buy
+14
New +$702 ﹤0.01% 6044
2017
Q2 		– Sell
-4
Closed -$665 – 6005
2017
Q1 		$0 Sell
4
-74
-95% -$39.6K ﹤0.01% 6079
2016
Q4 		$75K Buy
78
+37
+90% +$33.1K ﹤0.01% 1771
2016
Q3 		$35K Buy
+41
New +$32.2K ﹤0.01% 2421

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

Simplex Trading's ALT Position: Q1 2026 in Review

Simplex Trading opened a new position in Altimmune (ALT) in Q1 2026: 22,841 shares worth $70.3K. The stake represents ﹤0.01% of the portfolio and ranks #5489 among its holdings. This is a return to the name: Simplex Trading previously reported a position in ALT as recently as Q3 2025.

Simplex Trading first reported a position in ALT in Q3 2016 and has held it in 20 quarters since. The position peaked at $3.73M in Q4 2022. 173 funds tracked by Wall St. Rank hold ALT as of Q1 2026.

  • Simplex Trading held 22,841 shares of Altimmune worth $70.3K as of Q1 2026.
  • Altimmune was a new Simplex Trading position in Q1 2026.
  • Altimmune made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #5489 holding.
  • Simplex Trading first reported a position in Altimmune in Q3 2016 and has held it in 20 quarters since.
  • Simplex Trading's Altimmune position peaked at $3.73M in Q4 2022.
  • 173 funds tracked by Wall St. Rank held Altimmune as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.