Brian D. Frantz - Jan 15, 2025 Form 4 Insider Report for Summit Materials, Inc. (SUM)

Signature
/s/ Christopher B. Gaskill, as Attorney-in-Fact
Stock symbol
SUM
Transactions as of
Jan 15, 2025
Transactions value $
-$24,007
Form type
4
Date filed
1/17/2025, 05:29 PM
Previous filing
Mar 8, 2024
Next filing
Feb 10, 2025

Transactions Table

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SUM Restricted Stock Units Award $0 +4.46K $0.00 4.46K Jan 15, 2025 Class A Common Stock 4.46K Direct F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reflects shares of Class A Common Stock earned and delivered on performance units previously granted based upon the satisfaction of certain performance criteria.
F2 Total holdings include shares of Class A Common Stock acquired through the Issuer's Employee Stock Purchase Plan on November 30, 2024.
F3 Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. The restricted stock units will be settled in either Class A Common Stock or cash (or a combination thereof) at the discretion of the Issuer's Human Capital and Compensation Committee.
F4 These restricted stock units vest in three equal annual installments beginning on January 15, 2026.

Remarks:

Title: Senior Vice President, Chief Accounting Officer and Treasurer