Ken Griffin Gritstone Bio, Inc. Put Options Transaction History

Citadel Advisors LLC

8 transactions

Quarter	Operation	Price Per put	puts change	puts Held
Q2 2024 Aug 14, 2024	SELL	$0.62 - $2.35 $101,804 - $385,870	-164,200 Reduced 62.36%	99,100 $61,000
Q1 2024 May 15, 2024	BUY	$1.96 - $2.9 $417,088 - $617,120	212,800 Added 421.39%	263,300 $676,000
Q4 2023 Feb 14, 2024	BUY	$1.28 - $2.85 $48,896 - $108,870	38,200 Added 310.57%	50,500 $103,000
Q3 2023 Nov 14, 2023	SELL	$1.19 - $2.26 $4,284 - $8,135	-3,600 Reduced 22.64%	12,300 $21,000
Q2 2023 Aug 14, 2023	SELL	$1.66 - $3.03 $46,812 - $85,446	-28,200 Reduced 63.95%	15,900 $31,000
Q1 2023 May 15, 2023	BUY	$2.13 - $3.74 $54,315 - $95,370	25,500 Added 137.1%	44,100 $122,000
Q4 2022 Feb 14, 2023	SELL	$2.17 - $3.92 $20,615 - $37,240	-9,500 Reduced 33.81%	18,600 $64,000
Q3 2022 Nov 14, 2022	SELL	$2.46 - $4.75 $99,876 - $192,850	-40,600 Reduced 59.1%	28,100 $72,000

37.5M

1.46M

168K

Ticker GRTS
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 73,006,896
Market Cap $40.9M
Description
Gritstone bio, Inc., a clinical-stage biotechnology company, engages in developing immunotherapies against multiple cancer types and infectious diseases. Its lead product candidate is GRANITE, a neoantigen-based immunotherapy for the treatment of solid tumors, including metastatic non-small cell lung cancer, as well as gastroesophageal, bladder ...

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