Two Sigma Advisers
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Two Sigma Advisers’s SIGA Technologies SIGA Stock Holding History

Two Sigma Advisers’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
2025
Q3 		– Sell
-32,100
Closed -$209K – 2604
2025
Q2 		$209K Buy
+32,100
New +$192K ﹤0.01% 2103
2023
Q2 		– Sell
-12,100
Closed -$69.6K – 2638
2023
Q1 		$69.6K Sell
12,100
-237,800
-95% -$1.59M ﹤0.01% 2420
2022
Q4 		$1.84M Buy
+249,900
New +$2.19M 0.01% 1288
2022
Q3 		– Sell
-256,300
Closed -$2.97M – 2709
2022
Q2 		$2.97M Buy
+256,300
New +$2.31M 0.01% 1009
2021
Q1 		– Sell
-34,400
Closed -$250K – 2702
2020
Q4 		$250K Sell
34,400
-5,400
-14% -$38.1K ﹤0.01% 2100
2020
Q3 		$273K Buy
+39,800
New +$271K ﹤0.01% 2048
2019
Q3 		– Sell
-10,700
Closed -$61K – 2376
2019
Q2 		$61K Sell
10,700
-8,300
-44% -$46K ﹤0.01% 2244
2019
Q1 		$114K Buy
19,000
+1,400
+8% +$9.39K ﹤0.01% 2180
2018
Q4 		$139K Sell
17,600
-5,200
-23% -$29.7K ﹤0.01% 2190
2018
Q3 		$157K Buy
+22,800
New +$167K ﹤0.01% 2118

Other funds holding SIGA

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
AC
AltraVue Capital Bellevue, Washington $1.16B AUM 46.45% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
JAM
Jupiter Asset Management London, United Kingdom $18.8B AUM 29.2% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Two Sigma Advisers's SIGA Position: Q3 2025 in Review

Two Sigma Advisers sold out of SIGA Technologies (SIGA) in Q3 2025, closing a stake of 32,100 shares — an estimated $209K sold.

Two Sigma Advisers first reported a position in SIGA in Q3 2018 and held it in 10 quarters. The position peaked at $2.97M in Q2 2022. 197 funds tracked by Wall St. Rank hold SIGA as of Q3 2025.

  • Two Sigma Advisers reported no remaining SIGA Technologies position as of Q3 2025 after selling out during the quarter.
  • Two Sigma Advisers sold 32,100 SIGA Technologies shares in Q3 2025, an estimated $209K.
  • Two Sigma Advisers first reported a position in SIGA Technologies in Q3 2018 and held it in 10 quarters.
  • Two Sigma Advisers's SIGA Technologies position peaked at $2.97M in Q2 2022.
  • 197 funds tracked by Wall St. Rank held SIGA Technologies as of Q3 2025.

Based on Two Sigma Advisers's 13F filing for Q3 2025, filed 14 Nov 2025.