Jeffrey Alan Jones Cullinan Oncology, Inc. (CGEM) insider trading activity

Jeffrey Alan Jones is Chief Medical Officer of Cullinan Oncology, Inc.. Currently has a direct ownership of 169,532 shares of CGEM, which is worth approximately $1.45 Million. The most recent transaction as insider was on Dec 18, 2025, when has been sold 4,632 shares (Common Stock) at a price of $9.67 per share, resulting in proceeds of $44,791. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 170K

2.66% 3M change

48.64% 12M change

Total Value Held $1.45 Million

Jeffrey Alan Jones Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 18 2025	SELL Open market or private sale	$44,791 $9.67 p/Share	4,632 Reduced 2.66%	169,532 Common Stock
Feb 25 2025	SELL Open market or private sale	$41,754 $8.53 p/Share	4,895 Reduced 2.73%	174,164 Common Stock
Feb 19 2025	BUY Grant, award, or other acquisition	-	65,000 Added 26.63%	179,059 Common Stock
Dec 18 2024	SELL Open market or private sale	$52,851 $11.41 p/Share	4,632 Reduced 3.9%	114,059 Common Stock
Feb 22 2024	BUY Grant, award, or other acquisition	-	62,500 Added 34.49%	118,691 Common Stock
Dec 21 2023	SELL Open market or private sale	$15,810 $8.5 p/Share	1,860 Reduced 3.2%	56,191 Common Stock
Dec 18 2023	SELL Open market or private sale	$3,172 $8.22 p/Share	386 Reduced 0.66%	58,051 Common Stock

Jun 20 2023	SELL Open market or private sale	$5,007 $12.94 p/Share	387 Reduced 0.66%	58,437 Common Stock
May 18 2023	SELL Open market or private sale	$3,451 $8.76 p/Share	394 Reduced 0.67%	58,824 Common Stock
Apr 18 2023	SELL Open market or private sale	$4,198 $10.71 p/Share	392 Reduced 0.66%	59,218 Common Stock
Mar 20 2023	SELL Open market or private sale	$4,414 $11.32 p/Share	390 Reduced 0.65%	59,610 Common Stock
Feb 17 2023	BUY Grant, award, or other acquisition	-	60,000 Added 50.0%	60,000 Common Stock

JAJ

Jeffrey Alan Jones

Chief Medical Officer

Cambridge, MA

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