David Loomes Summit Materials, Inc. (SUM) insider trading activity

David Loomes is EVP, Cement of Summit Materials, Inc.. Currently has a direct ownership of 0 shares of SUM, which is worth approximately $0. The most recent transaction as insider was on Feb 10, 2025, when has been sold 33,674 shares (Class A Common Stock) at a price of $52.5 per share, resulting in proceeds of $1,767,885. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 0

100.0% 3M change

n/a 12M change

Total Value Held $0

David Loomes Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Feb 10 2025	SELL Sale (or disposition) back to the issuer	$1,767,885 $52.5 p/Share	33,674 Reduced 100.0%	0 Class A Common Stock
Jan 16 2025	SELL Payment of exercise price or tax liability	$173,792 $52.19 p/Share	3,330 Reduced 9.0%	33,674 Class A Common Stock
Jan 16 2025	BUY Grant, award, or other acquisition	-	7,086 Added 16.07%	37,004 Class A Common Stock
Dec 20 2024	SELL Payment of exercise price or tax liability	$477,326 $50.5 p/Share	9,452 Reduced 24.01%	29,918 Class A Common Stock
Dec 20 2024	BUY Exercise of conversion of derivative security	-	21,401 Added 35.22%	39,370 Class A Common Stock
Feb 29 2024	SELL Payment of exercise price or tax liability	$98,019 $42.71 p/Share	2,295 Reduced 11.81%	17,142 Class A Common Stock
Feb 29 2024	BUY Exercise of conversion of derivative security	-	7,542 Added 27.96%	19,437 Class A Common Stock

David Loomes

EVP, Cement

Denver, CO

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