Jason Kilgore - May 13, 2024 Form 4 Insider Report for Summit Materials, Inc. (SUM)

Role
Title: EVP, West Segment Construction Materials
Signature
/s/ David Hamm, as Attorney-in-Fact
Stock symbol
SUM
Transactions as of
May 13, 2024
Transactions value $
-$1,123,349
Form type
4
Date filed
5/14/2024, 04:47 PM
Previous filing
Mar 8, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SUM Class A Common Stock Options Exercise $911K +50.6K +83.44% $18.00 111K May 13, 2024 Direct F1
transaction SUM Class A Common Stock Sale -$453K -11.2K -10.08% $40.40 100K May 13, 2024 Direct F2
transaction SUM Class A Common Stock Sale -$1.58M -39.4K -39.38% $40.15 60.6K May 13, 2024 Direct F3
holding SUM Class A Common Stock 109K May 13, 2024 See Footnote F4

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 Options (right to buy) Options Exercise $0 -50.6K -100% $0.00* 0 May 13, 2024 Class A Common Stock 50.6K $18.00 Direct F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Total holdings include shares of Class A Common Stock received pursuant to a stock dividend paid on December 29, 2022.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $40.34 to $40.45, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. The Reporting Person remains within compliance of the Issuer's equity ownership guidelines.
F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $40.01 to $40.29, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. The Reporting Person remains within compliance of the Issuer's equity ownership guidelines.
F4 Reflects securities held by a limited liability company for the benefit of Mr. Kilgore's family, for which Mr. Kilgore's spouse serves as manager.
F5 These options are fully vested.

Remarks:

Title: EVP, West Segment Construction Materials