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Atom Investors’s SIGA Technologies SIGA Stock Holding History

Atom Investors’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
Q2 		– Sell
-13,012
Closed -$71.3K – 768
2025
Q1 		$71.3K Buy
+13,012
New +$77.1K 0.01% 453
2024
Q2 		– Sell
-11,502
Closed -$98.5K – 654
2024
Q1 		$98.5K Buy
+11,502
New +$65.7K 0.01% 524

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
AC
AltraVue Capital Bellevue, Washington $1.16B AUM 46.45% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Hotchkis & Wiley Capital Management
Hotchkis & Wiley Capital Management Los Angeles, California $32.4B AUM 17.21% 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

Atom Investors's SIGA Position: Q2 2025 in Review

Atom Investors sold out of SIGA Technologies (SIGA) in Q2 2025, closing a stake of 13,012 shares — an estimated $71.3K sold.

Atom Investors first reported a position in SIGA in Q1 2024 and held it in 2 quarters. The position peaked at $98.5K in Q1 2024. 177 funds tracked by Wall St. Rank hold SIGA as of Q2 2025.

  • Atom Investors reported no remaining SIGA Technologies position as of Q2 2025 after selling out during the quarter.
  • Atom Investors sold 13,012 SIGA Technologies shares in Q2 2025, an estimated $71.3K.
  • Atom Investors first reported a position in SIGA Technologies in Q1 2024 and held it in 2 quarters.
  • Atom Investors's SIGA Technologies position peaked at $98.5K in Q1 2024.
  • 177 funds tracked by Wall St. Rank held SIGA Technologies as of Q2 2025.

Based on Atom Investors's 13F filing for Q2 2025, filed 14 Aug 2025.