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

Signature
/s/ David Hamm, as Attorney-in-Fact
Issuer symbol
N/A
Transactions as of
12 Jan 2024
Net transactions value
$0
Form type
3
Filing time
19 Jan 2024, 17:42:34 UTC
Next filing
04 Mar 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding SUM Class A Common Stock 108,642 12 Jan 2024 See Footnote F1
holding SUM Class A Common Stock 44,987 12 Jan 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 12 Jan 2024 Class A Common Stock 2,786 Direct F3, F4
holding SUM Restricted Stock Units 12 Jan 2024 Class A Common Stock 5,591 Direct F4, F5
holding SUM Restricted Stock Units 12 Jan 2024 Class A Common Stock 9,649 Direct F4, F6
holding SUM Options (right to buy) 12 Jan 2024 Class A Common Stock 50,589 $18.00 Direct F7
holding SUM Options (right to buy) 12 Jan 2024 Class A Common Stock 8,743 $17.07 Direct F7
holding SUM Options (right to buy) 12 Jan 2024 Class A Common Stock 6,282 $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