Joseph S. Cantie - Feb 28, 2023 Form 4 Insider Report for Summit Materials, Inc. (SUM)

Role
Director
Signature
/s/ Christopher B. Gaskill, as Attorney-in-Fact
Stock symbol
SUM
Transactions as of
Feb 28, 2023
Transactions value $
$0
Form type
4
Date filed
3/1/2023, 04:35 PM
Previous filing
Feb 24, 2023
Next filing
Apr 5, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SUM Class A Common Stock Options Exercise +3.82K +12.2% 35.1K Feb 28, 2023 Direct F1, F2
holding SUM Class A Common Stock 5.1K Feb 28, 2023 See Footnote F3

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 Options Exercise $0 -3.82K -100% $0.00* 0 Feb 28, 2023 Class A Common Stock 3.82K Direct F4, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reflects restricted stock units that upon vesting converted into shares of Class A common stock of the Issuer ("Class A Common Stock") on a one-for-one basis.
F2 Total holdings include shares of Class A Common Stock received pursuant to a stock dividend paid on December 29, 2022.
F3 Reflects securities held by a trust for the benefit of the Reporting Person, for which the Reporting Person and his spouse serve as trustees.
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 On March 1, 2022, the Reporting Person was granted 3,815 restricted stock units that vested on February 28, 2023.