Christopher Burke Gaskill - 30 Jul 2022 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
30 Jul 2022
Net transactions value
-$84,373
Form type
4
Filing time
01 Aug 2022, 18:29:21 UTC
Previous filing
26 May 2022
Next filing
24 Feb 2023
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 Options Exercise +6,985 +42% 23,481 30 Jul 2022 Direct F1, F2
transaction SUM Class A Common Stock Tax liability $84,373 -3,067 -13% $27.51 20,414 30 Jul 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 -6,985 -100% $0.000000* 0 30 Jul 2022 Class A Common Stock 6,985 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