SEC Form 5 · accession 0001104659-18-007692
Summit Materials, Inc. · SUM
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Steven H Wunning
Director
Period of report
Dec 31, 2017
Accepted (ET)
Feb 8, 2018 · 6:01 pm EST
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001621563
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF1,F2 | — | Feb 28, 2017 | A | 4,098 | A | — | — | Class A Common Stock | 4,098 | 4,098 | D |
Explanation of responses
- F1Each restricted stock unit represents a contingent right to receive one share of Issuer Class A common stock ("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.
- F2The restricted stock units vest on February 28, 2018.