Ken Griffin Siga Technologies Inc Transaction History

Citadel Advisors LLC

$550 Billion
Q2 2025

A detailed history of Ken Griffin (Citadel Advisors LLC) transactions in Siga Technologies Inc stock. As of the latest transaction made, Citadel Advisors LLC holds 1,394,495 shares of SIGA stock, worth $12.5 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

1,394,495

Previous 5,100 27243.04%

Holding current value

$12.5 Million

Previous $27,000 33574.07%

% of portfolio

0.0%

Previous 0.0%

26 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 14, 2025	BUY	$5.22 - $6.56 $1.22 Million - $1.53 Million	233,682 Added 20.13%	1,394,495 $9.09 Million
Q1 2025 May 15, 2025	BUY	$5.39 - $6.47 $587,024 - $704,647	108,910 Added 10.35%	1,160,813 $6.36 Million
Q4 2024 Feb 14, 2025	SELL	$5.73 - $7.72 $95,507 - $128,676	-16,668 Reduced 1.56%	1,051,903 $6.32 Million
Q3 2024 Nov 14, 2024	BUY	$6.74 - $11.97 $6.38 Million - $11.3 Million	946,981 Added 778.83%	1,068,571 $7.2 Million
Q2 2024 Aug 14, 2024	BUY	$6.32 - $10.46 $71,611 - $118,522	11,331 Added 10.28%	121,590 $922,000
Q1 2024 May 15, 2024	SELL	$4.51 - $8.92 $347,274 - $686,848	-77,001 Reduced 41.12%	110,259 $943,000
Q4 2023 Feb 14, 2024	SELL	$4.82 - $6.25 $1.94 Million - $2.52 Million	-402,977 Reduced 68.27%	187,260 $1.05 Million
Q3 2023 Nov 14, 2023	SELL	$4.32 - $5.77 $797,402 - $1.07 Million	-184,584 Reduced 23.82%	590,237 $3.1 Million
Q2 2023 Aug 14, 2023	BUY	$5.0 - $6.31 $842,885 - $1.06 Million	168,577 Added 27.81%	774,821 $3.91 Million
Q1 2023 May 15, 2023	BUY	$5.23 - $8.42 $2.93 Million - $4.71 Million	559,550 Added 1198.33%	606,244 $3.49 Million
Q4 2022 Feb 14, 2023	SELL	$7.29 - $10.14 $762,497 - $1.06 Million	-104,595 Reduced 69.14%	46,694 $343,000
Q3 2022 Nov 14, 2022	BUY	$10.02 - $26.15 $1.52 Million - $3.96 Million	151,289 New	151,289 $1.56 Million
Q1 2022 May 16, 2022	BUY	$5.96 - $7.61 $591,392 - $755,117	99,227 Added 429.55%	122,327 $867,000
Q4 2021 Feb 14, 2022	BUY	$6.96 - $9.26 $68,047 - $90,535	9,777 Added 73.38%	23,100 $173,000
Q3 2021 Nov 15, 2021	SELL	$5.71 - $7.39 $153,353 - $198,473	-26,857 Reduced 66.84%	13,323 $98,000
Q1 2021 May 17, 2021	BUY	$6.3 - $7.71 $131,040 - $160,368	20,800 Added 107.33%	40,180 $261,000
Q4 2020 Feb 16, 2021	SELL	$6.39 - $7.76 $728,568 - $884,771	-114,017 Reduced 85.47%	19,380 $141,000
Q3 2020 Nov 16, 2020	BUY	$5.62 - $7.68 $539,345 - $737,041	95,969 Added 256.41%	133,397 $916,000
Q2 2020 Aug 14, 2020	BUY	$4.55 - $6.19 $51,005 - $69,389	11,210 Added 42.76%	37,428 $221,000
Q1 2020 May 15, 2020	SELL	$3.99 - $5.46 $410,136 - $561,238	-102,791 Reduced 79.68%	26,218 $125,000
Q4 2019 Feb 14, 2020	SELL	$4.34 - $5.86 $264,423 - $357,032	-60,927 Reduced 32.08%	129,009 $615,000
Q3 2019 Nov 14, 2019	BUY	$4.93 - $5.8 $465,032 - $547,096	94,327 Added 98.66%	189,936 $972,000
Q2 2019 Aug 14, 2019	BUY	$5.22 - $6.1 $59,800 - $69,881	11,456 Added 13.61%	95,609 $543,000
Q1 2019 May 15, 2019	BUY	$5.66 - $7.89 $32,420 - $45,193	5,728 Added 7.3%	84,153 $0
Q4 2018 Feb 14, 2019	BUY	$4.77 - $7.9 $199,137 - $329,809	41,748 Added 113.83%	78,425 $619,000
Q3 2018 Nov 13, 2018	BUY	$6.03 - $8.34 $221,162 - $305,886	36,677 New	36,677 $0

Others Institutions Holding SIGA

# of Institutions

191

Shares Held

35.4M

Call Options Held

106K

Put Options Held

16.6K

View Full List

About SIGA TECHNOLOGIES INC

Ticker SIGA
Exchange NASDAQ
Sector Healthcare
Industry Drug Manufacturers—Specialty & Generic
Shares Outstandng 73,024,096
Market Cap $654M
Description
SIGA Technologies, Inc., a commercial-stage pharmaceutical company, focuses on the health security and infectious disease markets in the United States. Its lead product is TPOXX, an oral formulation antiviral drug for the treatment of human smallpox disease caused by variola virus. SIGA Technologies, Inc. has a strategic partnership with Cipla T...

More about SIGA

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