Brian James Harris - 28 Feb 2022 Form 4 Insider Report for Summit Materials, Inc.

Role
EVP & Chief Financial Officer
Signature
/s/ Christopher B. Gaskill, as Attorney-in-Fact
Issuer symbol
N/A
Transactions as of
28 Feb 2022
Net transactions value
-$846,749
Form type
4
Filing time
01 Mar 2022, 16:53:38 UTC
Previous filing
03 Aug 2021
Next filing
03 Mar 2022
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 +9,820 +7.6% 139,814 28 Feb 2022 Direct F1
transaction SUM Class A Common Stock Options Exercise +6,635 +4.7% 146,449 28 Feb 2022 Direct F1
transaction SUM Class A Common Stock Options Exercise +5,596 +3.8% 152,045 28 Feb 2022 Direct F1
transaction SUM Class A Common Stock Award $0 +58,920 +39% $0.000000 210,965 28 Feb 2022 Direct F2
transaction SUM Class A Common Stock Tax liability $846,749 -27,122 -13% $31.22 183,843 28 Feb 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 -9,820 -33% $0.000000 19,640 28 Feb 2022 Class A Common Stock 9,820 Direct F3, F4
transaction SUM Restricted Stock Units Options Exercise $0 -6,635 -33% $0.000000 13,270 28 Feb 2022 Class A Common Stock 6,635 Direct F3, F5
transaction SUM Restricted Stock Units Options Exercise $0 -5,596 -33% $0.000000 11,190 28 Feb 2022 Class A Common Stock 5,596 Direct F3, F6
* 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 Reflects shares of Class A Common Stock earned and delivered on performance units previously granted based upon the satisfaction of certain performance criteria.
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 29,460 restricted stock units that vest in three equal annual installments beginning on February 28, 2020.
F5 The Reporting Person was granted 19,905 restricted stock units that vest in three equal annual installments beginning on February 28, 2021.
F6 The Reporting Person was granted 16,786 restricted stock units that vest in three equal annual installments beginning on February 28, 2022.