Harris Brian James 4

4 · Summit Materials, Inc. · Filed Mar 1, 2023

Form 4

Period: 2023-02-28

EVP & Chief Financial Officer

Transactions

Tax Payment
Class A Common Stock
2023-02-28$29.54/sh−10,433$308,191→ 220,418 total
Exercise/Conversion
Restricted Stock Units
2023-02-28−4,785→ 9,568 total
→ Class A Common Stock (4,785 underlying)
Exercise/Conversion
Class A Common Stock
2023-02-28+6,635→ 202,173 total
Exercise/Conversion
Class A Common Stock
2023-02-28+5,595→ 207,768 total
Exercise/Conversion
Restricted Stock Units
2023-02-28−6,636→ 0 total
→ Class A Common Stock (6,636 underlying)
Exercise/Conversion
Class A Common Stock
2023-02-28+4,785→ 212,553 total
Exercise/Conversion
Restricted Stock Units
2023-02-28−5,595→ 5,595 total
→ Class A Common Stock (5,595 underlying)
Award
Class A Common Stock
2023-02-28+18,298→ 230,851 total

Footnotes (8)

[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]Total holdings include shares of Class A Common Stock acquired through the Issuer's Employee Stock Purchase Plan on April 14, 2022 and October 18, 2022.
[F4]Reflects shares of Class A Common Stock earned and delivered on performance units previously granted based upon the satisfaction of certain performance criteria.
[F5]Each restricted stock unit represents a contingent right to receive one share of Class A common stock of the Issuer ("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.
[F6]These restricted stock units vest in three equal annual installments beginning on February 28, 2021.
[F7]These restricted stock units vest in three equal annual installments beginning on February 28, 2022.
[F8]These restricted stock units vest in three equal annual installments beginning on February 28, 2023.

Documents

1 file