Simplex Trading
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Simplex Trading’s SIGA Technologies SIGA Stock Holding History

Simplex Trading’s Portfolio SIGA Stock Details SIGA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$39.7K Buy
10,900
+3,300
+43% +$14.8K ﹤0.01% 6517
2026
Q1 		$40.7K Buy
7,600
+3,900
+105% +$24.3K ﹤0.01% 6090
2025
Q4 		$22.6K Sell
3,700
-100
-3% -$711 ﹤0.01% 6362
2025
Q3 		$34K Sell
3,800
-1,900
-33% -$15.2K ﹤0.01% 6851
2025
Q2 		$37K Sell
5,700
-6,300
-53% -$37.8K ﹤0.01% 6214
2025
Q1 		$65K Sell
12,000
-80,900
-87% -$479K ﹤0.01% 5511
2024
Q4 		$558K Buy
92,900
+3,500
+4% +$23.4K ﹤0.01% 3407
2024
Q3 		$603K Sell
89,400
-4,700
-5% -$41K ﹤0.01% 3395
2024
Q2 		$714K Sell
94,100
-37,000
-28% -$301K ﹤0.01% 3271
2024
Q1 		$1.12M Buy
131,100
+15,100
+13% +$86.2K ﹤0.01% 2999
2023
Q4 		$649K Sell
116,000
-58,100
-33% -$311K ﹤0.01% 3434
2023
Q3 		$914K Sell
174,100
-5,500
-3% -$27.1K ﹤0.01% 2756
2023
Q2 		$906K Buy
179,600
+52,800
+42% +$300K ﹤0.01% 2691
2023
Q1 		$729K Buy
126,800
+104,400
+466% +$698K ﹤0.01% 2889
2022
Q4 		$164K Sell
22,400
-27,800
-55% -$244K ﹤0.01% 4481
2022
Q3 		$517K Buy
50,200
+19,100
+61% +$307K ﹤0.01% 3427
2022
Q2 		$360K Buy
+31,100
New +$280K ﹤0.01% 3866
2021
Q1 		– Sell
-7
Closed -$5K – 9904
2020
Q4 		$5K Sell
7
-30
-81% -$211 ﹤0.01% 7733
2020
Q3 		$25K Buy
+37
New +$252 ﹤0.01% 6224
2020
Q1 		– Sell
-10
Closed -$4K – 8196
2019
Q4 		$4K Buy
+10
New +$51 ﹤0.01% 6796
2018
Q3 		– Sell
-30
Closed -$17K – 7989
2018
Q2 		$17K Buy
+30
New +$195 ﹤0.01% 5993
2015
Q1 		– Sell
-12
Closed -$2K – 5521
2014
Q4 		$2K Buy
+12
New +$18 ﹤0.01% 3812

Other funds holding SIGA

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
AC
AltraVue Capital Bellevue, Washington $1.39B AUM 53.77% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
FWSM
First Wilshire Securities Management Pasadena, California $486M AUM 50.29% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Simplex Trading's SIGA Position: Q2 2026 in Review

Simplex Trading increased its SIGA Technologies (SIGA) stake by 9% in Q2 2026, buying an estimated $1.8K and bringing the position to 4,885 shares worth $17.8K. The position accounts for ﹤0.01% of the portfolio, ranked #7208.

Simplex Trading first reported a position in SIGA in Q4 2014 and has held it in 26 quarters since. The position peaked at $962K in Q2 2024. 161 funds tracked by Wall St. Rank hold SIGA as of Q2 2026.

  • Simplex Trading held 4,885 shares of SIGA Technologies worth $17.8K as of Q2 2026.
  • Simplex Trading bought 402 SIGA Technologies shares in Q2 2026, an estimated $1.8K.
  • SIGA Technologies made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #7208 holding.
  • Simplex Trading first reported a position in SIGA Technologies in Q4 2014 and has held it in 26 quarters since.
  • Simplex Trading's SIGA Technologies position peaked at $962K in Q2 2024.
  • 161 funds tracked by Wall St. Rank held SIGA Technologies as of Q2 2026.

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