Bridgeway Capital Management’s SIGA Technologies SIGA Stock Holding History

Bridgeway Capital 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 Q1	–	Sell	-197,868	Closed	-$1.21M	–	1308
2025 Q4	$1.21M	Sell	197,868 -20,000	-9%	-$142K	0.03%	666
2025 Q3	$1.99M	Buy	217,868 +106,300	+95%	+$850K	0.04%	555
2025 Q2	$727K	Buy	+111,568	New	+$669K	0.02%	710
2019 Q3	–	Sell	-34,100	Closed	-$194K	–	1366
2019 Q2	$194K	Hold	34,100	–	–	﹤0.01%	1187
2019 Q1	$205K	Buy	+34,100	New	+$229K	﹤0.01%	1222
2015 Q1	–	Sell	-24,900	Closed	-$36K	–	1517
2014 Q4	$36K	Sell	24,900 -148,700	-86%	-$225K	﹤0.01%	1443
2014 Q3	$251K	Hold	173,600	–	–	0.01%	1302
2014 Q2	$490K	Hold	173,600	–	–	0.01%	1107
2014 Q1	$538K	Hold	173,600	–	–	0.02%	1043
2013 Q4	$568K	Hold	173,600	–	–	0.02%	982
2013 Q3	$663K	Hold	173,600	–	–	0.02%	897
2013 Q2	$493K	Buy	+173,600	New	+$582K	0.02%	946

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

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

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

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

FWSM

First Wilshire Securities Management Pasadena, California $486M AUM 50.29% 1-Year Est. Return

Bridgeway Capital Management's SIGA Position: Q1 2026 in Review

Bridgeway Capital Management sold out of SIGA Technologies (SIGA) in Q1 2026, closing a stake of 197,868 shares — an estimated $1.21M sold.

Bridgeway Capital Management first reported a position in SIGA in Q2 2013 and held it in 12 quarters. The position peaked at $1.99M in Q3 2025. 183 funds tracked by Wall St. Rank hold SIGA as of Q1 2026.

Bridgeway Capital Management reported no remaining SIGA Technologies position as of Q1 2026 after selling out during the quarter.
Bridgeway Capital Management sold 197,868 SIGA Technologies shares in Q1 2026, an estimated $1.21M.
Bridgeway Capital Management first reported a position in SIGA Technologies in Q2 2013 and held it in 12 quarters.
Bridgeway Capital Management's SIGA Technologies position peaked at $1.99M in Q3 2025.
183 funds tracked by Wall St. Rank held SIGA Technologies as of Q1 2026.

Based on Bridgeway Capital Management's 13F filing for Q1 2026, filed 15 May 2026.