Craig Scott Anderson - Mar 7, 2024 Form 4 Insider Report for Summit Materials, Inc. (SUM)

Role
EVP & Chief Financial Officer
Signature
/s/ David Hamm, as Attorney-in-Fact
Stock symbol
SUM
Transactions as of
Mar 7, 2024
Transactions value $
-$142,218
Form type
4
Date filed
3/8/2024, 08:24 PM
Previous filing
Mar 4, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SUM Class A Common Stock Award $0 +11.7K +92.42% $0.00 24.3K Mar 7, 2024 Direct F1, F2
transaction SUM Class A Common Stock Tax liability -$142K -3.36K -13.81% $42.39 20.9K Mar 7, 2024 Direct

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 +17.1K $0.00 17.1K Mar 7, 2024 Class A Common Stock 17.1K 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 May 28, 2023 and November 30, 2023.
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 February 28, 2025.