WUNNING STEVEN H - Insider Non-Derivative Transactions at Summit Materials, Inc. (SUM) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Feb 10, 2025, WUNNING STEVEN H's relationship to Summit Materials, Inc. (SUM) is Director, and currently has 0 shares of Class A Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other SUM insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

WUNNING STEVEN H - Insider Non-Derivative Transactions of SUM Class A Common Stock

WUNNING STEVEN H - Insider Non-Derivative Transactions at SUM

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Feb 11, 2025	Disposition -- (Class A Common Stock)	39013	52.5	0
Mar 1, 2024	M -- (Class A Common Stock)	4038	0	39013
Mar 1, 2023	M -- (Class A Common Stock)	3815	0	34455