Jason Kilgore - Jan 12, 2024 Form 3 Insider Report for Summit Materials, Inc. (SUM)

Role
Title: EVP, West Segment Construction Materials Exhibit 24 - Power of Attorney
Signature
/s/ David Hamm, as Attorney-in-Fact
Stock symbol
SUM
Transactions as of
Jan 12, 2024
Transactions value $
$0
Form type
3
Date filed
1/19/2024, 05:42 PM
Next filing
Mar 4, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding SUM Class A Common Stock 109K Jan 12, 2024 See Footnote F1
holding SUM Class A Common Stock 45K Jan 12, 2024 Direct F2

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
holding SUM Restricted Stock Units Jan 12, 2024 Class A Common Stock 2.79K Direct F3, F4
holding SUM Restricted Stock Units Jan 12, 2024 Class A Common Stock 5.59K Direct F4, F5
holding SUM Restricted Stock Units Jan 12, 2024 Class A Common Stock 9.65K Direct F4, F6
holding SUM Options (right to buy) Jan 12, 2024 Class A Common Stock 50.6K $18.00 Direct F7
holding SUM Options (right to buy) Jan 12, 2024 Class A Common Stock 8.74K $17.07 Direct F7
holding SUM Options (right to buy) Jan 12, 2024 Class A Common Stock 6.28K $23.89 Direct F7
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reflects securities held by K Six, LLC, a limited liability company, for which Mr. Kilgore serves as manager.
F2 Total holdings include shares of Class A Common Stock received pursuant to a stock dividend paid on December 29, 2022.
F3 These restricted stock units vest on February 28, 2024.
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 The Reporting Person was granted 8,387 restricted stock units that vest in three equal annual installments beginning on February 28, 2023.
F6 The Reporting Person was granted 9,649 restricted stock units that vest in three equal annual installments beginning on February 28, 2024.
F7 These options are fully vested.

Remarks:

Title: EVP, West Segment Construction Materials Exhibit 24 - Power of Attorney