Morgan Stanley
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Morgan Stanley’s SIGA Technologies SIGA Stock Holding History

Morgan Stanley’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 		$1.41M Sell
263,335
-231,121
-47% -$1.44M ﹤0.01% 4964
2025
Q4 		$3.02M Sell
494,456
-162,506
-25% -$1.16M ﹤0.01% 4534
2025
Q3 		$6.01M Buy
656,962
+135,094
+26% +$1.08M ﹤0.01% 4005
2025
Q2 		$3.4M Buy
521,868
+229,009
+78% +$1.37M ﹤0.01% 4361
2025
Q1 		$1.6M Buy
292,859
+41,205
+16% +$244K ﹤0.01% 4741
2024
Q4 		$1.51M Sell
251,654
-71,840
-22% -$480K ﹤0.01% 4882
2024
Q3 		$2.18M Sell
323,494
-20,348
-6% -$178K ﹤0.01% 4587
2024
Q2 		$2.61M Sell
343,842
-239,302
-41% -$1.95M ﹤0.01% 4382
2024
Q1 		$4.99M Sell
583,144
-222,602
-28% -$1.27M ﹤0.01% 3914
2023
Q4 		$4.51M Buy
805,746
+633,495
+368% +$3.39M ﹤0.01% 4437
2023
Q3 		$904K Buy
172,251
+13,609
+9% +$67.1K ﹤0.01% 4858
2023
Q2 		$801K Sell
158,642
-856,939
-84% -$4.87M ﹤0.01% 4960
2023
Q1 		$5.84M Sell
1,015,581
-1,133
-0.1% -$7.57K ﹤0.01% 3654
2022
Q4 		$7.48M Buy
1,016,714
+282,166
+38% +$2.47M ﹤0.01% 3366
2022
Q3 		$7.57M Buy
734,548
+489,014
+199% +$7.86M ﹤0.01% 3264
2022
Q2 		$2.84M Buy
245,534
+154,915
+171% +$1.4M ﹤0.01% 4257
2022
Q1 		$642K Sell
90,619
-19,695
-18% -$132K ﹤0.01% 5259
2021
Q4 		$828K Sell
110,314
-68,238
-38% -$520K ﹤0.01% 5206
2021
Q3 		$1.32M Buy
178,552
+60,719
+52% +$389K ﹤0.01% 4872
2021
Q2 		$741K Buy
117,833
+112,992
+2,334% +$776K ﹤0.01% 5259
2021
Q1 		$32K Sell
4,841
-70,946
-94% -$481K ﹤0.01% 6556
2020
Q4 		$551K Buy
75,787
+64,233
+556% +$453K ﹤0.01% 5022
2020
Q3 		$79K Sell
11,554
-141,822
-92% -$964K ﹤0.01% 5535
2020
Q2 		$907K Buy
153,376
+73,320
+92% +$419K ﹤0.01% 4247
2020
Q1 		$382K Sell
80,056
-7,292
-8% -$35.5K ﹤0.01% 4536
2019
Q4 		$416K Buy
87,348
+57,567
+193% +$293K ﹤0.01% 5036
2019
Q3 		$153K Buy
29,781
+17,605
+145% +$94.9K ﹤0.01% 5269
2019
Q2 		$69K Sell
12,176
-71,760
-85% -$397K ﹤0.01% 5485
2019
Q1 		$504K Sell
83,936
-67,198
-44% -$451K ﹤0.01% 4544
2018
Q4 		$1.19M Buy
151,134
+49,151
+48% +$281K ﹤0.01% 4150
2018
Q3 		$702K Sell
101,983
-15,835
-13% -$116K ﹤0.01% 4786
2018
Q2 		$700K Buy
117,818
+110,818
+1,583% +$719K ﹤0.01% 4868
2018
Q1 		$43K Buy
+7,000
New +$42.4K ﹤0.01% 5918
2015
Q1 		– Sell
-283,358
Closed -$408K – 6639
2014
Q4 		$408K Buy
283,358
+126,176
+80% +$191K ﹤0.01% 4819
2014
Q3 		$227K Sell
157,182
-66,165
-30% -$130K ﹤0.01% 5074
2014
Q2 		$631K Buy
223,347
+95,695
+75% +$268K ﹤0.01% 4415
2014
Q1 		$395K Sell
127,652
-36,296
-22% -$120K ﹤0.01% 4717
2013
Q4 		$536K Buy
163,948
+124,786
+319% +$421K ﹤0.01% 4407
2013
Q3 		$149K Buy
39,162
+23,092
+144% +$79K ﹤0.01% 4989
2013
Q2 		$46K Buy
+16,070
New +$53.9K ﹤0.01% 5211

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

Morgan Stanley's SIGA Position: Q1 2026 in Review

Morgan Stanley reduced its SIGA Technologies (SIGA) stake by 47% in Q1 2026, selling an estimated $1.44M and leaving 263,335 shares worth $1.41M. The position accounts for ﹤0.01% of the portfolio, ranked #4964.

Morgan Stanley first reported a position in SIGA in Q2 2013 and has held it in 40 quarters since. The position peaked at $7.57M in Q3 2022. 183 funds tracked by Wall St. Rank hold SIGA as of Q1 2026.

  • Morgan Stanley held 263,335 shares of SIGA Technologies worth $1.41M as of Q1 2026.
  • Morgan Stanley sold 231,121 SIGA Technologies shares in Q1 2026, an estimated $1.44M.
  • SIGA Technologies made up ﹤0.01% of Morgan Stanley's portfolio in Q1 2026, its #4964 holding.
  • Morgan Stanley first reported a position in SIGA Technologies in Q2 2013 and has held it in 40 quarters since.
  • Morgan Stanley's SIGA Technologies position peaked at $7.57M in Q3 2022.
  • 183 funds tracked by Wall St. Rank held SIGA Technologies as of Q1 2026.

Based on Morgan Stanley's 13F filing for Q1 2026, filed 15 May 2026.