Jacobs Levy Equity Management’s SIGA Technologies SIGA Stock Holding History

Jacobs Levy Equity Management’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	$2.06M	Buy	566,863 +275,017	+94%	+$1.23M	0.01%	588
2026 Q1	$1.56M	Sell	291,846 -204,320	-41%	-$1.27M	0.01%	628
2025 Q4	$3.03M	Buy	496,166 +32,461	+7%	+$231K	0.01%	515
2025 Q3	$4.24M	Buy	463,705 +24,851	+6%	+$199K	0.02%	450
2025 Q2	$2.86M	Buy	+438,854	New	+$2.63M	0.01%	558
2019 Q2	–	Sell	-15,846	Closed	-$95K	–	1015
2019 Q1	$95K	Buy	+15,846	New	+$106K	﹤0.01%	932
2014 Q2	–	Sell	-84,989	Closed	-$263K	–	920
2014 Q1	$263K	Buy	84,989 +7,820	+10%	+$25.9K	﹤0.01%	777
2013 Q4	$252K	Buy	+77,169	New	+$260K	﹤0.01%	838

Other funds holding SIGA

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

AltraVue Capital Bellevue, Washington $1.39B AUM 53.77% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

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 Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Jacobs Levy Equity Management's SIGA Position: Q2 2026 in Review

Jacobs Levy Equity Management increased its SIGA Technologies (SIGA) stake by 94% in Q2 2026, buying an estimated $1.23M and bringing the position to 566,863 shares worth $2.06M. The position accounts for 0.01% of the portfolio, ranked #588.

Jacobs Levy Equity Management first reported a position in SIGA in Q4 2013 and has held it in 8 quarters since. The position peaked at $4.24M in Q3 2025. 161 funds tracked by Wall St. Rank hold SIGA as of Q2 2026.

Jacobs Levy Equity Management held 566,863 shares of SIGA Technologies worth $2.06M as of Q2 2026.
Jacobs Levy Equity Management bought 275,017 SIGA Technologies shares in Q2 2026, an estimated $1.23M.
SIGA Technologies made up 0.01% of Jacobs Levy Equity Management's portfolio in Q2 2026, its #588 holding.
Jacobs Levy Equity Management first reported a position in SIGA Technologies in Q4 2013 and has held it in 8 quarters since.
Jacobs Levy Equity Management's SIGA Technologies position peaked at $4.24M in Q3 2025.
161 funds tracked by Wall St. Rank held SIGA Technologies as of Q2 2026.

Based on Jacobs Levy Equity Management's 13F filing for Q2 2026, filed 14 Aug 2026.