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SIGASIGA
23 quarters

Position history for ARROWSTREET CAPITAL, LIMITED PARTNERSHIPARROWSTREET CAPITAL, LIMITED PARTNERSHIP's holdings in SIGA TECHNOLOGIES INC

Yes. Arrowstreet Capital holds 1,474,817 shares of SIGA (Siga Technologies), worth $5.4M, as of its Q2 2026 13F filing. It reduced the position by 51,143 shares (-3.4%) from Q1 2026. Arrowstreet Capital has held SIGA since Q1 2024, across 10 quarterly 13F filings.

Current Value

$5.4M

Current Shares

1.5M

Total Value Change

+$2.3M

Total Shares Change

+960,296

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Decreased
1.5M
-3.4%
$5.4M0.0%$3.64
0
2026-Q1
Increased
1.5M
+48.9%
$8.2M0.0%$4.73
38
2025-Q4
Increased
1M
+22.8%
$6.3M0.0%$5.41
33
2025-Q3
Increased
834,683
+44.2%
$7.6M0.0%$8.09
37
2025-Q2
Decreased
578,781
-2.4%
$3.8M0.0%$5.77
0
2025-Q1
Increased
593,273
+37.4%
$3.3M0.0%$4.39
35
2024-Q4
Decreased
431,773
-46.5%
$2.6M0.0%$4.81
0
2024-Q3
Increased
806,832
+34.3%
$5.4M0.0%$5.41
35
2024-Q2
Increased
600,739
+2.2%
$4.6M0.0%$6.08
27
2024-Q1
New
587,573
-
$5M0.0%$6.86
37
2023-Q2
Exited
0
-100.0%
$00.0%$3.77
0
2023-Q1
Decreased
187,720
-70.8%
$1.1M0.0%$3.96
0
2022-Q4
Increased
642,413
+850.9%
$4.7M0.0%$5.07
43
2022-Q3
Increased
67,560
+102.1%
$696,0000.0%$7.10
40
2022-Q2
Decreased
33,423
-52.1%
$387,0000.0%$7.98
0
2022-Q1
Decreased
69,758
-70.1%
$495,0000.0%$4.59
0
2021-Q4
Decreased
233,128
-32.4%
$1.8M0.0%$4.87
0
2021-Q3
Decreased
345,034
-50.8%
$2.6M0.0%$4.79
0
2021-Q2
Increased
700,634
+17.2%
$4.4M0.0%$4.07
31
2021-Q1
Decreased
598,005
-3.7%
$3.9M0.0%$4.21
0
2020-Q4
Increased
621,121
+7.4%
$4.5M0.0%$4.71
29
2020-Q3
Increased
578,136
+12.4%
$4M0.0%$4.45
30
2020-Q2
New
514,521
-
$3M0.0%$3.83
37

Other major holders of SIGA: D. E. Shaw & Co., Inc., BlackRock, Inc., BlackRock Finance, Inc.

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