| Accession Number: | 0001628280-23-032469 |
| Date: | 2023-09-15 |
| Issuer: | SUMMIT MATERIALS, INC. (SUM) |
| Original Submission Date: |
GHELANI KEKIN
C/O SUMMIT MATERIALS, INC.
1801 CALIFORNIA STREET, SUITE 3500
DENVER, CO 80202
| Title of Security | Transaction Date | 2a. Deemed Execution Date | Transaction Code | Shares | Acquired or Disposed | Price per share | 5. Amount of Securities Beneficially Owned Following Reported Transaction | 6. Ownership Form Direct or Indirect | Nature of Indirect Ownership |
|---|---|---|---|---|---|---|---|---|---|
| CLASS A COMMON STOCK | 2023-09-15 | M | 9,667 | a | $0.00 | 10,656 | direct | ||
| CLASS A COMMON STOCK | 2023-09-15 | F | 2,780 | d | $32.00 | 7,876 | direct |
| Title of Derivative Security | Conversion or Exercise Price of Derivative Security | Transaction Date | Deemed Execution Date | Transaction Code | Number of Derivative Securities Acquired (A) or Disposed of (D) | Date Exercisable | Expiration Date | Title and Amount of Securities Underlying Derivative Security | Price of Derivative Security | Number of derivative Securities Beneficially Owned Following Reported Transaction(s) | Ownership Form: Direct (D) or Indirect (I) | Nature of Indirect Beneficial Ownership |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RESTRICTED STOCK UNITS | 0.0 | 2023-09-15 | deemed execution date | M | 9,667 (d) | class a common stock 9,667 | $0.00 | 19,334 | direct |
| ID | footnote |
|---|---|
| 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 | includes 989 shares acquired through the issuer's employee stock purchase plan on 5/28/23. |
| f3 | 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. |
| f4 | these restricted stock units vest in three equal annual installments on september 15, 2023, february 28, 2024 and february 28, 2025. |
