Citadel Advisors Llc

13F Holdings History for Cullinan Therapeutics, Inc. - Common Stock, par value $0.0001 per share (CGEM)

Symbol: CGEM on Nasdaq
Investment type: Equity / Common Stock, par value $0.0001 per share
Latest Disclosed Ownership: 1.99M shares
Security Ownership: 3.4%

Shares, Excluding Options vs Price

Value, Excluding Options

Kenneth Griffin ownership in Cullinan Therapeutics, Inc. Common Stock, par value $0.0001 per share (CGEM)

2025-11-14 - Kenneth Griffin has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 1.99M shares of Cullinan Therapeutics, Inc. Common Stock, par value $0.0001 per share (CGEM). This represents 3.4% percent ownership of the company. In their previous filing dated 2025-08-06, CITADEL ADVISORS LLC had reported owning 3.01M shares, indicating a decrease of -33.9% percent.

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filed at
Kenneth Griffin	3.4%	-34%	$11.8M	1.99M	-1,020,219	-33.9%	$5.93	13G/A	9/30/2025	14 Nov 2025 16:03:50
Kenneth Griffin	5.1%		$23.6M	3.01M			$7.84	13G	7/30/2025	6 Aug 2025 18:55:46

Holdings date	Option	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
9/30/2025		0.01%	0%	$11.8M	1.98M	-629,286	-24.1%	$5.93	Q3 2025
9/30/2025	put		0%	$0	0	-163,900	-100%		Q3 2025
6/30/2025		0.02%	0%	$19.7M	2.61M	-133,452	-4.86%	$7.53	Q2 2025
6/30/2025	call		0%	$0	0	-4,600	-100%		Q2 2025
6/30/2025	put	0%	+0%	$1.23M	164K	+146,000	+816%	$7.53	Q2 2025
3/31/2025		0.02%	+0%	$20.8M	2.75M	+64,241		$7.57	Q1 2025
3/31/2025	call	0%	0%	$34.8K	4.6K	-17,000		$7.57	Q1 2025
3/31/2025	put	0%	0%	$136K	17.9K	-4,300		$7.57	Q1 2025
12/31/2024		0.03%	+0.01%	$32.7M	2.68M	+727,647	+37.2%	$12.18	Q4 2024
12/31/2024	call	0%	0%	$263K	21.6K	-19,000	-46.8%	$12.18	Q4 2024
12/31/2024	put	0%	0%	$270K	22.2K	-6,200	-21.8%	$12.18	Q4 2024
9/30/2024		0.03%	+0%	$32.7M	1.96M	+12,118	+0.62%	$16.74	Q3 2024
9/30/2024	call	0%	+0%	$680K	40.6K	+6,500	+19.1%	$16.74	Q3 2024
9/30/2024	put	0%	+0%	$475K	28.4K	+12,500	+78.6%	$16.74	Q3 2024
6/30/2024		0.03%	+0.01%	$33.9M	1.94M	+833,968	+75.2%	$17.44	Q2 2024
6/30/2024	call	0%	+0%	$595K	34.1K	+21,500	+171%	$17.44	Q2 2024
6/30/2024	put	0%	+0%	$277K	15.9K	+11,000	+224%	$17.44	Q2 2024
3/31/2024		0.02%	0%	$18.9M	1.11M	-23,718	-2.09%	$17.04	Q1 2024
3/31/2024	call	0%	+0%	$215K	12.6K	+4,400	+53.7%	$17.04	Q1 2024
3/31/2024	put	0%	0%	$83.5K	4.9K	-2,500	-33.8%	$17.04	Q1 2024
12/31/2023		0.01%	+0%	$11.5M	1.13M	+67,841	+6.37%	$10.19	Q4 2023
12/31/2023	call	0%	+0%	$83.6K	8.2K	+1,500	+22.4%	$10.19	Q4 2023
12/31/2023	put	0%	+0%	$75.4K	7.4K	+3,400	+85%	$10.19	Q4 2023
9/30/2023		0.01%	+0%	$9.64M	1.07M	+8,697	+0.82%	$9.05	Q3 2023
9/30/2023	call	0%	+0%	$60.6K	6.7K	+3,600	+116%	$9.05	Q3 2023
9/30/2023	put	0%	+0%	$36.2K	4K	+1,900	+90.5%	$9.05	Q3 2023
6/30/2023		0.01%	+0.01%	$11.4M	1.06M	+433,283	+69.5%	$10.76	Q2 2023
6/30/2023	call	0%	+0%	$33.4K	3.1K	+300	+10.7%	$10.76	Q2 2023
6/30/2023	put	0%	+0%	$22.6K	2.1K	+600	+40%	$10.76	Q2 2023
3/31/2023		0.01%	+0%	$6.37M	623K	+377,958	+154%	$10.23	Q1 2023
3/31/2023	call	0%	+0%	$28.6K	2.8K	+1,600	+133%	$10.23	Q1 2023
3/31/2023	put	0%	+0%	$15.3K	1.5K	+1,200	+400%	$10.23	Q1 2023
12/31/2022		0%	+0%	$2.59M	245K	+9,507	+4.04%	$10.55	Q4 2022
12/31/2022	call	0%	0%	$12.7K	1.2K	-25,200	-95.5%	$10.55	Q4 2022
12/31/2022	put	0%	+0%	$3.17K	300	+300	NEW	$10.55	Q4 2022
9/30/2022		0%	0%	$3.02M	236K	-133,867	-36.2%	$12.82	Q3 2022
9/30/2022	call	0%	0%	$338K	26.4K	-1,000	-3.65%	$12.80	Q3 2022
6/30/2022		0.01%	+0%	$4.74M	369K	+229,785	+165%	$12.82	Q2 2022
6/30/2022	call	0%	0%	$351K	27.4K	-101,900	-78.8%	$12.81	Q2 2022
3/31/2022		0%	+0%	$1.46M	140K	+93,204	+201%	$10.47	Q1 2022
3/31/2022	call	0%	+0%	$1.35M	129K	+129,300	NEW	$10.47	Q1 2022
12/31/2021		0%	0%	$717K	46.5K	-59,652	-56.2%	$15.43	Q4 2021
9/30/2021		0%	+0%	$2.4M	106K	+3,025	+2.93%	$22.57	Q3 2021
6/30/2021		0%	0%	$2.66M	103K	-8,214	-7.38%	$25.75	Q2 2021
3/31/2021		0%	+0%	$4.64M	111K	+111,322	NEW	$41.67	Q1 2021

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.