Jacquelyn L Sumer Cullinan Oncology, Inc. (CGEM) insider trading activity

Jacquelyn L Sumer is Chief Legal Officer of Cullinan Oncology, Inc.. Currently has a direct ownership of 135,432 shares of CGEM, which is worth approximately $1.16 Million. The most recent transaction as insider was on Dec 18, 2025, when has been sold 3,480 shares (Common Stock) at a price of $9.67 per share, resulting in proceeds of $33,651. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 135K

1.07% 3M change

49.4% 12M change

Total Value Held $1.16 Million

JACQUELYN L SUMER Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 18 2025	SELL Open market or private sale	$33,651 $9.67 p/Share	3,480 Reduced 2.51%	135,432 Common Stock
Feb 25 2025	SELL Open market or private sale	$32,038 $8.53 p/Share	3,756 Reduced 2.67%	136,895 Common Stock
Feb 19 2025	BUY Grant, award, or other acquisition	-	50,000 Added 26.23%	140,651 Common Stock
Dec 18 2024	SELL Open market or private sale	$39,729 $11.41 p/Share	3,482 Reduced 3.7%	90,651 Common Stock
Feb 22 2024	BUY Grant, award, or other acquisition	-	50,000 Added 34.69%	94,133 Common Stock
Dec 21 2023	SELL Open market or private sale	$11,900 $8.5 p/Share	1,400 Reduced 3.07%	44,133 Common Stock
Dec 18 2023	SELL Open market or private sale	$2,383 $8.22 p/Share	290 Reduced 0.63%	45,533 Common Stock

Jun 20 2023	SELL Open market or private sale	$3,765 $12.94 p/Share	291 Reduced 0.63%	45,823 Common Stock
May 18 2023	SELL Open market or private sale	$2,549 $8.76 p/Share	291 Reduced 0.63%	46,114 Common Stock
Apr 18 2023	SELL Open market or private sale	$3,105 $10.71 p/Share	290 Reduced 0.62%	46,405 Common Stock
Mar 20 2023	SELL Open market or private sale	$3,452 $11.32 p/Share	305 Reduced 0.65%	46,695 Common Stock
Feb 17 2023	BUY Grant, award, or other acquisition	-	47,000 Added 50.0%	47,000 Common Stock

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