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
Q2 		– Sell
-22,841
Closed -$68.2K – 9207
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 $6.73T AUM 46.02% 1-Year Est. Return
DTC
Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
TCM
TCG Crossover Management Palo Alto, California $4.16B AUM 983.43% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.1B AUM 21.36% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Simplex Trading's ALT Position: Q2 2026 in Review

Simplex Trading sold out of Altimmune (ALT) in Q2 2026, closing a stake of 22,841 shares — an estimated $68.2K sold.

Simplex Trading first reported a position in ALT in Q3 2016 and held it in 20 quarters. The position peaked at $3.73M in Q4 2022. 211 funds tracked by Wall St. Rank hold ALT as of Q2 2026.

  • Simplex Trading reported no remaining Altimmune position as of Q2 2026 after selling out during the quarter.
  • Simplex Trading sold 22,841 Altimmune shares in Q2 2026, an estimated $68.2K.
  • Simplex Trading first reported a position in Altimmune in Q3 2016 and held it in 20 quarters.
  • Simplex Trading's Altimmune position peaked at $3.73M in Q4 2022.
  • 211 funds tracked by Wall St. Rank held Altimmune as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.