Northern Trust
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Northern Trust’s SIGA Technologies SIGA Stock Holding History

Northern Trust’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 		$1.82M Sell
340,175
-35,672
-9% -$222K ﹤0.01% 3024
2025
Q4 		$2.3M Sell
375,847
-17,033
-4% -$121K ﹤0.01% 2911
2025
Q3 		$3.59M Sell
392,880
-10,493
-3% -$83.9K ﹤0.01% 2691
2025
Q2 		$2.63M Sell
403,373
-66,221
-14% -$397K ﹤0.01% 2834
2025
Q1 		$2.57M Buy
469,594
+4,786
+1% +$28.3K ﹤0.01% 2788
2024
Q4 		$2.79M Buy
464,808
+26,344
+6% +$176K ﹤0.01% 2832
2024
Q3 		$2.96M Sell
438,464
-25,264
-5% -$221K ﹤0.01% 2765
2024
Q2 		$3.52M Sell
463,728
-19,523
-4% -$159K ﹤0.01% 2588
2024
Q1 		$4.14M Sell
483,251
-6,980
-1% -$39.8K ﹤0.01% 2586
2023
Q4 		$2.75M Buy
490,231
+24,615
+5% +$132K ﹤0.01% 2819
2023
Q3 		$2.44M Sell
465,616
-3,922
-0.8% -$19.3K ﹤0.01% 2828
2023
Q2 		$2.37M Buy
469,538
+1,580
+0.3% +$8.98K ﹤0.01% 2919
2023
Q1 		$2.69M Buy
467,958
+29,784
+7% +$199K ﹤0.01% 2810
2022
Q4 		$3.22M Sell
438,174
-6,952
-2% -$60.9K ﹤0.01% 2741
2022
Q3 		$4.58M Sell
445,126
-2,462
-0.6% -$39.6K ﹤0.01% 2551
2022
Q2 		$5.18M Buy
447,588
+11,622
+3% +$105K ﹤0.01% 2489
2022
Q1 		$3.09M Sell
435,966
-19,924
-4% -$133K ﹤0.01% 2866
2021
Q4 		$3.43M Sell
455,890
-22,873
-5% -$174K ﹤0.01% 2934
2021
Q3 		$3.54M Sell
478,763
-32,752
-6% -$210K ﹤0.01% 2954
2021
Q2 		$3.21M Sell
511,515
-62,081
-11% -$427K ﹤0.01% 3110
2021
Q1 		$3.73M Sell
573,596
-21,400
-4% -$145K ﹤0.01% 2923
2020
Q4 		$4.33M Sell
594,996
-19,123
-3% -$135K ﹤0.01% 2766
2020
Q3 		$4.22M Sell
614,119
-86,590
-12% -$589K ﹤0.01% 2646
2020
Q2 		$4.14M Buy
700,709
+13,953
+2% +$79.6K ﹤0.01% 2631
2020
Q1 		$3.28M Buy
686,756
+21,271
+3% +$104K ﹤0.01% 2555
2019
Q4 		$3.17M Buy
665,485
+13,104
+2% +$66.7K ﹤0.01% 2852
2019
Q3 		$3.34M Buy
652,381
+50,453
+8% +$272K ﹤0.01% 2792
2019
Q2 		$3.42M Buy
601,928
+17,020
+3% +$94.2K ﹤0.01% 2764
2019
Q1 		$3.52M Buy
584,908
+14,553
+3% +$97.7K ﹤0.01% 2760
2018
Q4 		$4.5M Sell
570,355
-10,807
-2% -$61.8K ﹤0.01% 2567
2018
Q3 		$4M Buy
581,162
+62,708
+12% +$460K ﹤0.01% 2825
2018
Q2 		$3.08M Buy
518,454
+506,579
+4,266% +$3.29M ﹤0.01% 2968
2018
Q1 		$73K Buy
+11,875
New +$71.9K ﹤0.01% 4028
2015
Q1 		– Sell
-12,567
Closed -$18K – 4352
2014
Q4 		$18K Buy
12,567
+29
+0.2% +$44 ﹤0.01% 4185
2014
Q3 		$18K Sell
12,538
-383,332
-97% -$751K ﹤0.01% 4218
2014
Q2 		$1.12M Sell
395,870
-77,781
-16% -$218K ﹤0.01% 3360
2014
Q1 		$1.47M Sell
473,651
-39,664
-8% -$131K ﹤0.01% 3274
2013
Q4 		$1.68M Buy
513,315
+18,201
+4% +$61.4K ﹤0.01% 3234
2013
Q3 		$1.89M Buy
495,114
+13,290
+3% +$45.5K ﹤0.01% 3119
2013
Q2 		$1.37M Buy
+481,824
New +$1.62M ﹤0.01% 3175

Other funds holding SIGA

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
AC
AltraVue Capital Bellevue, Washington $1.16B AUM 46.45% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
FWSM
First Wilshire Securities Management Pasadena, California $444M AUM 42.88% 1-Year Est. Return

Northern Trust's SIGA Position: Q1 2026 in Review

Northern Trust reduced its SIGA Technologies (SIGA) stake by 9.5% in Q1 2026, selling an estimated $222K and leaving 340,175 shares worth $1.82M. The position accounts for ﹤0.01% of the portfolio, ranked #3024.

Northern Trust first reported a position in SIGA in Q2 2013 and has held it in 40 quarters since. The position peaked at $5.18M in Q2 2022. 183 funds tracked by Wall St. Rank hold SIGA as of Q1 2026.

  • Northern Trust held 340,175 shares of SIGA Technologies worth $1.82M as of Q1 2026.
  • Northern Trust sold 35,672 SIGA Technologies shares in Q1 2026, an estimated $222K.
  • SIGA Technologies made up ﹤0.01% of Northern Trust's portfolio in Q1 2026, its #3024 holding.
  • Northern Trust first reported a position in SIGA Technologies in Q2 2013 and has held it in 40 quarters since.
  • Northern Trust's SIGA Technologies position peaked at $5.18M in Q2 2022.
  • 183 funds tracked by Wall St. Rank held SIGA Technologies as of Q1 2026.

Based on Northern Trust's 13F filing for Q1 2026, filed 14 May 2026.