Siga Technologies Inc

SIGA

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001010086

SEC filings (opens in a new tab)

No open-market purchases or sales by Siga Technologies Inc insiders were filed in the last 90 days; 161 institutions reported holding it in 13F filings for Q2 2026, worth $127.0M in total; no superinvestor holds it.

Q2 2022 vs. Q1 2022

How the institutions holding Siga Technologies Inc changed between Q1 2022 and Q2 2022.

All holders in Q2 2022 All holders in Q1 2022

13F holders of SIGA: Q1 2022 compared with Q2 2022
Measure	Q1 2022	Of which not filed for Q2 2022	Q2 2022	Change
Holders	110	4	142	+36
Shares	21.2M	1.29M	26.1M	+6.13M (+30.7%)
Value	$150.5M	$9.12M	$302.3M	+$160.9M (+113.8%)

4 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so the changes leave them out.

New holders (43)

Institutions that held Siga Technologies Inc at the end of Q2 2022 but not at the end of Q1 2022.

Institutions new to SIGA in Q2 2022
Institution	Shares	Value	% of portfolio
Marshall Wace, LLP	878,129	$10.2M	0.02%
Price Jennifer C.	804,559	$9.32M	1.59%
Two Sigma Investments, LP	668,204	$7.74M	0.03%
Voloridge Investment Management, LLC	405,756	$4.70M	0.02%
Cubist Systematic Strategies, LLC	326,640	$3.78M	0.03%
Connor, Clark & Lunn Investment Management Ltd.	288,979	$3.35M	0.02%
Two Sigma Advisers, LP	256,300	$2.97M	0.01%
First Wilshire Securities Management Inc	161,739	$1.87M	0.70%
EAM Global Investors LLC	159,135	$1.84M	0.45%
Jane Street Group, LLC	123,514	$1.43M	0.00%
Friess Associates LLC	121,225	$1.40M	2.34%
EAM Investors, LLC	108,941	$1.26M	0.31%
Uniplan Investment Counsel, Inc.	103,411	$1.20M	0.08%
Janus Henderson Group PLC	100,941	$1.17M	0.00%
Timelo Investment Management Inc.	50,000	$579.0K	0.53%
Tudor Investment Corp Et Al	31,870	$369.0K	0.01%
Squarepoint Ops LLC	30,319	$351.0K	0.00%
Qube Research & Technologies Ltd	28,947	$335.0K	0.00%
Dynamic Technology Lab Private Ltd	28,292	$328.0K	0.04%
Cambria Investment Management, L.P.	26,075	$302.0K	0.04%
Westwood Holdings Group Inc.	24,097	$279.0K	0.00%
Two Sigma Securities, LLC	20,635	$239.0K	0.04%
Plustick Management LLC	20,000	$232.0K	0.19%
Ci Investments Inc.	18,200	$211.0K	0.00%
Mirae Asset Global Investments Co., Ltd.	15,648	$181.0K	0.00%
Envestnet Asset Management Inc	15,246	$177.0K	0.00%
SG Americas Securities, LLC	14,272	$165.0K	0.00%
Bailard, Inc.	13,100	$152.0K	0.01%
HRT Financial LP	12,519	$144.0K	0.00%
Balyasny Asset Management LLC	12,265	$142.0K	0.00%
AQR Capital Management LLC	12,097	$140.0K	0.00%
Independent Financial Group, LLC	11,759	$136.2K	0.01%
Bank of Nova Scotia	10,842	$126.0K	0.00%
Walleye Trading LLC	10,318	$119.0K	0.00%
Difesa Capital Management, LP	10,000	$116.0K	0.08%
Cutler Group LP	4,940	$57.0K	0.01%
Aquatic Capital Management LLC	500	$6.00K	0.00%
Total Clarity Wealth Management, Inc.	250	$3.00K	0.00%
Lindbrook Capital, LLC	209	$2.00K	0.00%
HM Payson & Co	100	$1.00K	0.00%
Financial Synergies Wealth Advisors, Inc.	38	$441	0.00%
TCI Wealth Advisors, Inc.	40	$0	0.00%
Ronald Blue Trust, Inc.	33	$0	0.00%

Sold out (7)

Institutions that held Siga Technologies Inc at the end of Q1 2022 and filed for Q2 2022 without it.

Institutions that sold out of SIGA in Q2 2022
Institution	Shares, Q1 2022	Value, Q1 2022
Citadel Advisors LLC	122,327	$867.0K
Principal Financial Group Inc	25,069	$178.0K
Trexquant Investment LP	21,618	$153.0K
Cypress Capital Management LLC	12,500	$89.0K
Vontobel Holding Ltd.	10,753	$76.0K
State of Wyoming	4,428	$31.0K
Aaron Wealth Advisors	3,885	–

Not filed for Q2 2022 yet (4)

Institutions that held Siga Technologies Inc at the end of Q1 2022 and haven't filed a 13F for Q2 2022. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding SIGA in Q1 2022 that haven't filed for Q2 2022
Institution	Shares, Q1 2022	Value, Q1 2022
Price Michael F	1,148,577	$8.14M
Parametric Portfolio Associates LLC	80,367	$570.0K
Virginia Retirement Systems Et Al	49,900	$354.0K
Amalgamated Financial Corp.	7,881	$56.0K