SEC Form 4 · accession 0001104659-18-014207
Summit Materials, Inc. · SUM
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Steven H Wunning
Director
Period of report
Feb 28, 2018
Accepted (ET)
Mar 1, 2018 · 9:02 pm EST
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001621563
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A Common StockF1,F2 | Feb 28, 2018 | M | 4,098 | — | A | 8,787 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF3,F4 | — | Feb 28, 2018 | M | 4,098 | D | — | — | Class A Common Stock | 4,098 | 0 | D |
| Restricted Stock UnitsF3,F5 | — | Feb 28, 2018 | A | 3,994 | A | — | — | Class A Common Stock | 3,994 | 3,994 | D |
Explanation of responses
- F1Reflects 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.
- F2Total holdings include shares of Class A Common Stock received pursuant to a stock dividend paid on December 22, 2017.
- F3Each 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 compensation committee.
- F4On February 28, 2017, the Reporting Person was granted 4,098 restricted stock units that vested on February 28, 2018.
- F5These restricted stock units vest on February 28, 2019.