Linden Thomas Advisory Services’s SIGA Technologies SIGA Stock Holding History

Linden Thomas Advisory Services’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	-28,465	Closed	-$174K	–	551
2025 Q4	$174K	Sell	28,465 -82	-0.3%	-$583	0.02%	481
2025 Q3	$261K	Buy	28,547 +914	+3%	+$7.31K	0.03%	434
2025 Q2	$180K	Buy	27,633 +1,403	+5%	+$8.41K	0.02%	471
2025 Q1	$144K	Buy	26,230 +1,938	+8%	+$11.5K	0.02%	454
2024 Q4	$146K	Buy	24,292 +4,315	+22%	+$28.8K	0.02%	464
2024 Q3	$135K	Buy	19,977 +4,106	+26%	+$35.8K	0.02%	461
2024 Q2	$120K	Buy	15,871 +3,370	+27%	+$27.4K	0.02%	445
2024 Q1	$107K	Buy	+12,501	New	+$71.4K	0.02%	453

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

Linden Thomas Advisory Services's SIGA Position: Q1 2026 in Review

Linden Thomas Advisory Services sold out of SIGA Technologies (SIGA) in Q1 2026, closing a stake of 28,465 shares — an estimated $174K sold.

Linden Thomas Advisory Services first reported a position in SIGA in Q1 2024 and held it in 8 quarters. The position peaked at $261K in Q3 2025. 183 funds tracked by Wall St. Rank hold SIGA as of Q1 2026.

Linden Thomas Advisory Services reported no remaining SIGA Technologies position as of Q1 2026 after selling out during the quarter.
Linden Thomas Advisory Services sold 28,465 SIGA Technologies shares in Q1 2026, an estimated $174K.
Linden Thomas Advisory Services first reported a position in SIGA Technologies in Q1 2024 and held it in 8 quarters.
Linden Thomas Advisory Services's SIGA Technologies position peaked at $261K in Q3 2025.
183 funds tracked by Wall St. Rank held SIGA Technologies as of Q1 2026.

Based on Linden Thomas Advisory Services's 13F filing for Q1 2026, filed 10 Apr 2026.