Tamla Oates-Forney - 19 May 2021 Form 4 Insider Report for Summit Materials, Inc.

Role
Director
Signature
/s/ Christopher B. Gaskill, as Attorney-in-Fact
Issuer symbol
N/A
Transactions as of
19 May 2021
Net transactions value
$0
Form type
4
Filing time
21 May 2021, 21:18:05 UTC
Next filing
17 Feb 2022

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 Award $0 +4,054 $0.000000 4,054 19 May 2021 Class A Common Stock 4,054 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 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 compensation committee.
F2 These restricted stock units vest on May 19, 2022.