On this page, we present all of the funds holding SIGA from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding SIGA, with a link to that fund's top holdings. The next columns indicate the amount of SIGA stock held by each of the funds holding SIGA, followed by the SIGA position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 161 funds holding SIGA within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by BlackRock Inc.. For more details on the positions held by BlackRock Inc. (or by any of the other funds holding SIGA), click the fund name in the "Holder" column of the funds-holding-SIGA table below.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	3,201,820	$32,980	09/30/2022
SIGA	3,201,820	$32,980	09/30/2022
Renaissance Technologies LLC	2,353,247	$24,238	09/30/2022
SIGA	2,353,247	$24,238	09/30/2022
Vanguard Group Inc.	2,228,809	$22,956	09/30/2022
SIGA	2,228,809	$22,956	09/30/2022
D. E. Shaw & Co. Inc.	2,201,993	$22,680	09/30/2022
SIGA	2,201,993	$22,680	09/30/2022
State Street Corp	1,514,105	$15,595	09/30/2022
SIGA	1,514,105	$15,595	09/30/2022
AltraVue Capital LLC	1,457,536	$15,012	09/30/2022
SIGA	1,457,536	$15,012	09/30/2022
Dimensional Fund Advisors LP	1,113,186	$11,467	09/30/2022
SIGA	1,113,186	$11,467	09/30/2022
Qube Research & Technologies Ltd	1,077,668	$11,100	09/30/2022
SIGA	1,077,668	$11,100	09/30/2022
Two Sigma Investments LP	994,041	$10,239	09/30/2022
SIGA	994,041	$10,239	09/30/2022
Kempen Capital Management N.V.	783,184	$8,067	09/30/2022
SIGA	783,184	$8,067	09/30/2022
Geode Capital Management LLC	782,359	$8,058	09/30/2022
SIGA	782,359	$8,058	09/30/2022
Morgan Stanley	734,548	$7,566	09/30/2022
SIGA	734,548	$7,566	09/30/2022
Principal Financial Group Inc.	696,866	$7,178	09/30/2022
SIGA	696,866	$7,178	09/30/2022
Cubist Systematic Strategies LLC	582,942	$6,004	09/30/2022
SIGA	582,942	$6,004	09/30/2022
Northern Trust Corp	445,126	$4,584	09/30/2022
SIGA	445,126	$4,584	09/30/2022
Susquehanna International Group LLP		$4,366	09/30/2022
Call	513,100	$5,285	09/30/2022
Put	141,100	$1,453	09/30/2022
SIGA	51,843	$534	09/30/2022
Jane Street Group LLC		$4,251	09/30/2022
Call	510,100	$5,254	09/30/2022
Put	148,700	$1,532	09/30/2022
SIGA	51,330	$529	09/30/2022
American Century Companies Inc.	402,391	$4,145	09/30/2022
SIGA	402,391	$4,145	09/30/2022
Voloridge Investment Management LLC	394,671	$4,065	09/30/2022
SIGA	394,671	$4,065	09/30/2022
Price Jennifer C.	382,400	$3,939	09/30/2022
SIGA	382,400	$3,939	09/30/2022
Royce & Associates LP	327,027	$3,368	09/30/2022
SIGA	327,027	$3,368	09/30/2022
Gotham Asset Management LLC	311,292	$3,206	09/30/2022
SIGA	311,292	$3,206	09/30/2022
Charles Schwab Investment Management Inc.	304,438	$3,136	09/30/2022
SIGA	304,438	$3,136	09/30/2022
Connor Clark & Lunn Investment Management Ltd.	288,883	$2,975	09/30/2022
SIGA	288,883	$2,975	09/30/2022
Group One Trading L.P.		$2,810	09/30/2022
Call	313,400	$3,228	09/30/2022
Put	40,600	$418	09/30/2022
Legato Capital Management LLC	271,380	$2,795	09/30/2022
SIGA	271,380	$2,795	09/30/2022
PEAK6 Investments LLC		$2,740	09/30/2022
Call	266,000	$2,740	09/30/2022
New York State Common Retirement Fund	323,763	$2,383	12/31/2022
SIGA	323,763	$2,383	12/31/2022
Bank of New York Mellon Corp	226,161	$2,329	09/30/2022
SIGA	226,161	$2,329	09/30/2022
Citadel Advisors LLC		$2,247	09/30/2022
Call	607,500	$6,257	09/30/2022
Put	540,600	$5,568	09/30/2022
SIGA	151,289	$1,558	09/30/2022
Credit Suisse AG	200,111	$2,061	09/30/2022
SIGA	200,111	$2,061	09/30/2022
Trexquant Investment LP	190,471	$1,962	09/30/2022
SIGA	190,471	$1,962	09/30/2022
Goldman Sachs Group Inc.	187,852	$1,935	09/30/2022
SIGA	187,852	$1,935	09/30/2022
Hillsdale Investment Management Inc.	159,905	$1,647	09/30/2022
SIGA	159,905	$1,647	09/30/2022
Nuveen Asset Management LLC	158,830	$1,636	09/30/2022
SIGA	158,830	$1,636	09/30/2022
Jupiter Asset Management Ltd.	157,602	$1,623	09/30/2022
SIGA	157,602	$1,623	09/30/2022
Globeflex Capital L P	138,893	$1,431	09/30/2022
SIGA	138,893	$1,431	09/30/2022
Verition Fund Management LLC	120,000	$1,236	09/30/2022
SIGA	120,000	$1,236	09/30/2022
Ancora Advisors LLC	119,735	$1,233	09/30/2022
SIGA	119,735	$1,233	09/30/2022
First Wilshire Securities Management Inc.	118,577	$1,221	09/30/2022
SIGA	118,577	$1,221	09/30/2022
ExodusPoint Capital Management LP	117,074	$1,206	09/30/2022
SIGA	117,074	$1,206	09/30/2022
Cambria Investment Management L.P.	114,048	$1,175	09/30/2022
SIGA	114,048	$1,175	09/30/2022
Simplex Trading LLC		$1,144	09/30/2022
Call	161,300	$1,661	09/30/2022
Put	50,200	$517	09/30/2022
Swiss National Bank	105,100	$1,083	09/30/2022
SIGA	105,100	$1,083	09/30/2022
Assenagon Asset Management S.A.	142,021	$1,045	12/31/2022
SIGA	142,021	$1,045	12/31/2022
Janus Henderson Group PLC	100,943	$1,040	09/30/2022
SIGA	100,943	$1,040	09/30/2022
Invesco Ltd.	100,243	$1,033	09/30/2022
SIGA	100,243	$1,033	09/30/2022
BNP Paribas Arbitrage SA	99,773	$1,028	09/30/2022
SIGA	99,773	$1,028	09/30/2022
First Trust Advisors LP	96,904	$998	09/30/2022
SIGA	96,904	$998	09/30/2022
Bank of America Corp DE	96,357	$992	09/30/2022
SIGA	96,357	$992	09/30/2022
Uniplan Investment Counsel Inc.	92,379	$951	09/30/2022
SIGA	92,379	$951	09/30/2022
Susquehanna Fundamental Investments LLC	76,600	$789	09/30/2022
SIGA	76,600	$789	09/30/2022
Teacher Retirement System of Texas	72,994	$752	09/30/2022
SIGA	72,994	$752	09/30/2022
SG Americas Securities LLC	72,830	$750	09/30/2022
SIGA	72,830	$750	09/30/2022
Marshall Wace LLP	70,273	$724	09/30/2022
SIGA	70,273	$724	09/30/2022
UBS Asset Management Americas Inc.	68,740	$708	09/30/2022
SIGA	68,740	$708	09/30/2022
Alliancebernstein L.P.	67,900	$699	09/30/2022
SIGA	67,900	$699	09/30/2022
Arrowstreet Capital Limited Partnership	67,560	$696	09/30/2022
SIGA	67,560	$696	09/30/2022
Raymond James & Associates	60,445	$623	09/30/2022
SIGA	60,445	$623	09/30/2022
Rhumbline Advisers	59,536	$613	09/30/2022
SIGA	59,536	$613	09/30/2022
Victory Capital Management Inc.	58,393	$601	09/30/2022
SIGA	58,393	$601	09/30/2022
California State Teachers Retirement System	57,084	$588	09/30/2022
SIGA	57,084	$588	09/30/2022
Harvest Investment Services LLC	56,929	$586	09/30/2022
SIGA	56,929	$586	09/30/2022
TRUE Private Wealth Advisors	54,114	$557	09/30/2022
SIGA	54,114	$557	09/30/2022
JPMorgan Chase & Co.	50,876	$524	09/30/2022
SIGA	50,876	$524	09/30/2022
State of Wisconsin Investment Board	45,192	$465	09/30/2022
SIGA	45,192	$465	09/30/2022
Strs Ohio	61,600	$453	12/31/2022
SIGA	61,600	$453	12/31/2022
SummerHaven Investment Management LLC	60,036	$442	12/31/2022
SIGA	60,036	$442	12/31/2022
Pasadena Private Wealth LLC	41,594	$428	09/30/2022
SIGA	41,594	$428	09/30/2022
James Investment Research Inc.	53,300	$392	12/31/2022
SIGA	53,300	$392	12/31/2022
Exchange Traded Concepts LLC	51,820	$381	12/31/2022
SIGA	51,820	$381	12/31/2022
Tower Research Capital LLC TRC	35,512	$366	09/30/2022
SIGA	35,512	$366	09/30/2022
O Shaughnessy Asset Management LLC	34,553	$356	09/30/2022
SIGA	34,553	$356	09/30/2022
XTX Topco Ltd	32,115	$331	09/30/2022
SIGA	32,115	$331	09/30/2022
Hussman Strategic Advisors Inc.	31,000	$319	09/30/2022
SIGA	31,000	$319	09/30/2022
Dark Forest Capital Management LP	30,458	$314	09/30/2022
SIGA	30,458	$314	09/30/2022
DekaBank Deutsche Girozentrale	30,000	$309	09/30/2022
SIGA	30,000	$309	09/30/2022
Point72 Hong Kong Ltd	29,197	$301	09/30/2022
SIGA	29,197	$301	09/30/2022
MetLife Investment Management LLC	28,561	$294	09/30/2022
SIGA	28,561	$294	09/30/2022
SG3 Management LLC		$280	09/30/2022
Call	30,000	$309	09/30/2022
Put	21,600	$222	09/30/2022
SIGA	18,700	$193	09/30/2022
CIBC Private Wealth Group LLC	26,000	$268	09/30/2022
SIGA	26,000	$268	09/30/2022
Advisor Group Holdings Inc.	25,801	$266	09/30/2022
SIGA	25,801	$266	09/30/2022
ClariVest Asset Management LLC	25,400	$261	09/30/2022
SIGA	25,400	$261	09/30/2022
Parallax Volatility Advisers L.P.		$258	09/30/2022
Call	25,000	$258	09/30/2022
Citigroup Inc.		$257	09/30/2022
Put	31,300	$322	09/30/2022
Call	31,300	$322	09/30/2022
SIGA	24,925	$257	09/30/2022
Squarepoint Ops LLC	24,012	$247	09/30/2022
SIGA	24,012	$247	09/30/2022
Millennium Management LLC	23,740	$245	09/30/2022
SIGA	23,740	$245	09/30/2022
Alps Advisors Inc.	23,759	$245	09/30/2022
SIGA	23,759	$245	09/30/2022
Price T Rowe Associates Inc. MD	23,507	$243	09/30/2022
SIGA	23,507	$243	09/30/2022
American International Group Inc.	22,363	$230	09/30/2022
SIGA	22,363	$230	09/30/2022
Deutsche Bank AG	21,615	$222	09/30/2022
SIGA	21,615	$222	09/30/2022
Mirae Asset Global Investments Co. Ltd.	21,573	$222	09/30/2022
SIGA	21,573	$222	09/30/2022
ETF Managers Group LLC	21,549	$222	09/30/2022
SIGA	21,549	$222	09/30/2022
Seven Eight Capital LP	20,592	$212	09/30/2022
SIGA	20,592	$212	09/30/2022
Plustick Management LLC	20,000	$206	09/30/2022
SIGA	20,000	$206	09/30/2022
The Manufacturers Life Insurance Company	19,902	$205	09/30/2022
SIGA	19,902	$205	09/30/2022
Quantamental Technologies LLC	19,747	$203	09/30/2022
SIGA	19,747	$203	09/30/2022
Wells Fargo & Company MN	18,577	$191	09/30/2022
SIGA	18,577	$191	09/30/2022
Legal & General Group Plc	18,312	$189	09/30/2022
SIGA	18,312	$189	09/30/2022
HAP Trading LLC		$188	09/30/2022
Call	72,300	$188	09/30/2022
Voya Investment Management LLC	18,140	$187	09/30/2022
SIGA	18,140	$187	09/30/2022
DAVENPORT & Co LLC	25,000	$184	12/31/2022
SIGA	25,000	$184	12/31/2022
Allspring Global Investments Holdings LLC	24,830	$183	12/31/2022
SIGA	24,830	$183	12/31/2022
Rafferty Asset Management LLC	17,727	$183	09/30/2022
SIGA	17,727	$183	09/30/2022
AQR Capital Management LLC	16,643	$171	09/30/2022
SIGA	16,643	$171	09/30/2022
Franklin Resources Inc.	14,419	$148	09/30/2022
SIGA	14,419	$148	09/30/2022
Telemetry Investments L.L.C.	14,299	$147	09/30/2022
SIGA	14,299	$147	09/30/2022
Envestnet Asset Management Inc.	13,611	$140	09/30/2022
SIGA	13,611	$140	09/30/2022
HRT Financial LP	12,530	$129	09/30/2022
SIGA	12,530	$129	09/30/2022
Arizona State Retirement System	12,085	$124	09/30/2022
SIGA	12,085	$124	09/30/2022
Captrust Financial Advisors	11,963	$123	09/30/2022
SIGA	11,963	$123	09/30/2022
Ensign Peak Advisors Inc	11,880	$122	09/30/2022
SIGA	11,880	$122	09/30/2022
Engineers Gate Manager LP	11,893	$122	09/30/2022
SIGA	11,893	$122	09/30/2022
Nisa Investment Advisors LLC	12,665	$116	09/30/2022
SIGA	12,665	$116	09/30/2022
ProShare Advisors LLC	11,342	$116	09/30/2022
SIGA	11,342	$116	09/30/2022
Zurcher Kantonalbank Zurich Cantonalbank	11,209	$115	09/30/2022
SIGA	11,209	$115	09/30/2022
Commonwealth Equity Services LLC	10,818	$111	09/30/2022
SIGA	10,818	$111	09/30/2022
Royal Bank of Canada	10,771	$111	09/30/2022
SIGA	10,771	$111	09/30/2022
One Capital Management LLC	10,864	$111	09/30/2022
SIGA	10,864	$111	09/30/2022
Cambridge Investment Research Advisors Inc.	10,231	$105	09/30/2022
SIGA	10,231	$105	09/30/2022
Cresset Asset Management LLC	10,033	$103	09/30/2022
SIGA	10,033	$103	09/30/2022
Amalgamated Bank	7,619	$78	09/30/2022
SIGA	7,619	$78	09/30/2022
CSS LLC IL		$76	09/30/2022
Call	27,400	$282	09/30/2022
Put	20,000	$206	09/30/2022
Onyx Bridge Wealth Group LLC	10,000	$72	12/31/2022
SIGA	10,000	$72	12/31/2022
	5,972	$62	09/30/2022
SIGA	5,972	$62	09/30/2022
Wipfli Financial Advisors LLC	4,846	$50	09/30/2022
SIGA	4,846	$50	09/30/2022
Lazard Asset Management LLC	4,323	$44	09/30/2022
SIGA	4,323	$44	09/30/2022
Clearstead Advisors LLC	4,000	$41	09/30/2022
SIGA	4,000	$41	09/30/2022
Vestcor Inc	3,999	$41	09/30/2022
SIGA	3,999	$41	09/30/2022
Ameritas Investment Partners Inc.	3,774	$38	09/30/2022
SIGA	3,774	$38	09/30/2022
Metropolitan Life Insurance Co NY	3,442	$35	09/30/2022
SIGA	3,442	$35	09/30/2022
Steward Partners Investment Advisory LLC	3,200	$33	09/30/2022
SIGA	3,200	$33	09/30/2022
Great West Life Assurance Co. Can	2,265	$23	09/30/2022
SIGA	2,265	$23	09/30/2022
Altshuler Shaham Ltd	1,950	$20	09/30/2022
SIGA	1,950	$20	09/30/2022
IFP Advisors Inc	442	$17	09/30/2022
SIGA	442	$17	09/30/2022
Macquarie Group Ltd.	0	$14	09/30/2022
SIGA	0	$14	09/30/2022
Meeder Asset Management Inc.	1,308	$13	09/30/2022
SIGA	1,308	$13	09/30/2022
FMR LLC	922	$10	09/30/2022
SIGA	922	$10	09/30/2022
Clear Street Markets LLC		$10	09/30/2022
Call	1,000	$10	09/30/2022
TCI Wealth Advisors Inc.	711	$7	09/30/2022
SIGA	711	$7	09/30/2022
Rockefeller Capital Management L.P.	700	$7	09/30/2022
SIGA	700	$7	09/30/2022
China Universal Asset Management Co. Ltd.	683	$7	09/30/2022
SIGA	683	$7	09/30/2022
Signaturefd LLC	789	$6	12/31/2022
SIGA	789	$6	12/31/2022
Cutler Group LP		$6	09/30/2022
Put	17,700	$120	09/30/2022
SIGA	10,650	$109	09/30/2022
Call	88,900	$17	09/30/2022
The PNC Financial Services Group Inc.	435	$4	09/30/2022
SIGA	435	$4	09/30/2022
UBS Group AG	372	$4	09/30/2022
SIGA	372	$4	09/30/2022
Daiwa Securities Group Inc.	270	$3	09/30/2022
SIGA	270	$3	09/30/2022
EverSource Wealth Advisors LLC	258	$3	09/30/2022
SIGA	258	$3	09/30/2022
HM Payson & Co.	150	$2	09/30/2022
SIGA	150	$2	09/30/2022
Allworth Financial LP	113	$1	12/31/2022
SIGA	113	$1	12/31/2022
Proequities Inc.		$0	12/31/2022
Put	0	$0	12/31/2022
Call	0	$0	12/31/2022
SIGA	0	$0	12/31/2022
Massmutual Trust Co. FSB ADV	38	$0	12/31/2022
SIGA	38	$0	12/31/2022
Ronald Blue Trust Inc.	33	$0	12/31/2022
SIGA	33	$0	12/31/2022
Accurate Wealth Management LLC	50	$0	12/31/2022
SIGA	50	$0	12/31/2022
US Bancorp DE	11	$0	09/30/2022
SIGA	11	$0	09/30/2022
Sculptor Capital LP		$0	09/30/2022
Put	130,100	$1,340	09/30/2022
SIGA	130,100	$1,340	09/30/2022
CWM LLC	36	$0	09/30/2022
SIGA	36	$0	09/30/2022
Glassman Wealth Services	48	$0	09/30/2022
SIGA	48	$0	09/30/2022
Parallel Advisors LLC	12	$0	09/30/2022
SIGA	12	$0	09/30/2022
Guardian Wealth Advisors LLC	48	$0	09/30/2022
SIGA	48	$0	09/30/2022
Covestor Ltd	8	$0	09/30/2022
SIGA	8	$0	09/30/2022
Barclays PLC	349,341	$-1,043	09/30/2022
Put	450,600	$4,642	09/30/2022
SIGA	349,341	$3,599	09/30/2022

See Summary: Institutional Holders of SIGA
See Details: Top 10 Hedge Funds Holding SIGA
Also See: SIGA Insider Buying
Also See: SIGA Holdings Changes

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SIGA — Performance