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October Effect’s SIGA Technologies SIGA Stock Holding History

October Effect’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 		$69.2K Sell
19,000
-1,300
-6% -$5.82K 0.07% 63
2026
Q1 		$109K Sell
20,300
-2,800
-12% -$17.5K 0.13% 62
2025
Q4 		$141K Sell
23,100
-2,566
-10% -$18.3K 0.16% 60
2025
Q3 		$235K Sell
25,666
-2,000
-7% -$16K 0.26% 49
2025
Q2 		$180K Buy
+27,666
New +$166K 0.22% 52

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 $3.38T AUM 44.17% 1-Year Est. Return

October Effect's SIGA Position: Q2 2026 in Review

October Effect reduced its SIGA Technologies (SIGA) stake by 6.4% in Q2 2026, selling an estimated $5.82K and leaving 19,000 shares worth $69.2K. The position accounts for 0.07% of the portfolio, ranked #63.

October Effect first reported a position in SIGA in Q2 2025 and has held it in 5 quarters since. The position peaked at $235K in Q3 2025. 161 funds tracked by Wall St. Rank hold SIGA as of Q2 2026.

  • October Effect held 19,000 shares of SIGA Technologies worth $69.2K as of Q2 2026.
  • October Effect sold 1,300 SIGA Technologies shares in Q2 2026, an estimated $5.82K.
  • SIGA Technologies made up 0.07% of October Effect's portfolio in Q2 2026, its #63 holding.
  • October Effect first reported a position in SIGA Technologies in Q2 2025 and has held it in 5 quarters since.
  • October Effect's SIGA Technologies position peaked at $235K in Q3 2025.
  • 161 funds tracked by Wall St. Rank held SIGA Technologies as of Q2 2026.

Based on October Effect's 13F filing for Q2 2026, filed 21 Jul 2026.