Christopher Burke Gaskill - 07 Mar 2024 Form 4 Insider Report for Summit Materials, Inc.

Role
Title: EVP, Chief Legal Officer & Secretary
Signature
/s/ Christopher B. Gaskill
Issuer symbol
N/A
Transactions as of
07 Mar 2024
Net transactions value
-$273,755
Form type
4
Filing time
08 Mar 2024, 20:21:02 UTC
Previous filing
04 Mar 2024
Next filing
11 Dec 2024
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SUM Class A Common Stock Award $0 +14,759 +47% $0.000000 45,896 07 Mar 2024 Direct F1, F2, F3
transaction SUM Class A Common Stock Tax liability $273,755 -6,458 -14% $42.39 39,438 07 Mar 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 +13,589 $0.000000 13,589 07 Mar 2024 Class A Common Stock 13,589 Direct F4, F5
* 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 received pursuant to a stock dividend paid on December 29, 2022.
F3 Total holdings include shares of Class A Common Stock acquired through the Issuer's Employee Stock Purchase Plan on April 14, 2022, October 18, 2022, May 28, 2023 and November 30, 2023.
F4 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.
F5 These restricted stock units vest in three equal annual installments beginning on February 28, 2025.

Remarks:

Title: EVP, Chief Legal Officer & Secretary