Christopher B. Gaskill - Jul 30, 2022 Form 4 Insider Report for Summit Materials, Inc. (SUM)

Role
Title: EVP, Chief Legal Officer & Secretary
Signature
/s/ Christopher B. Gaskill
Stock symbol
SUM
Transactions as of
Jul 30, 2022
Transactions value $
-$84,373
Form type
4
Date filed
8/1/2022, 06:29 PM
Previous filing
May 26, 2022
Next filing
Feb 24, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SUM Class A Common Stock Options Exercise +6.99K +42.34% 23.5K Jul 30, 2022 Direct F1, F2
transaction SUM Class A Common Stock Tax liability -$84.4K -3.07K -13.06% $27.51 20.4K Jul 30, 2022 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 Options Exercise $0 -6.99K -100% $0.00* 0 Jul 30, 2022 Class A Common Stock 6.99K Direct F3, F4
* 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 Includes 559 shares acquired through the Issuer's Employee Stock Purchase Plan on April 14, 2022.
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 The Reporting Person was granted 13,971 restricted stock units that vest in two equal installments beginning on July 30, 2021.

Remarks:

Title: EVP, Chief Legal Officer & Secretary