SEC Form 4 · accession 0001104659-17-056361
Summit Materials, Inc. · SUM
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Thomas A. Beck
Officer — See Remarks
Period of report
Sep 6, 2017
Accepted (ET)
Sep 8, 2017 · 6:02 pm EDT
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 Stock | Sep 6, 2017 | M | 5,938 | $18.00 | A | 7,498 | D | |
| Class A Common Stock | Sep 6, 2017 | M | 7,719 | $18.00 | A | 15,217 | D | |
| Class A Common Stock | Sep 6, 2017 | M | 4,242 | $17.07 | A | 19,459 | D | |
| Class A Common StockF1 | Sep 6, 2017 | S | 17,899 | $30.24 | D | 1,560 | D | |
| Class A Common Stock | Sep 7, 2017 | S | 1,560 | $30.10 | D | 0 | D | |
| Class A Common StockF2 | holding | — | — | — | 18,354 | I | See footnote |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Options (right to buy)F3 | $18.00 | Sep 6, 2017 | M | 5,938 | D | — | Mar 11, 2025 | Class A Common Stock | 5,938 | 5,939 | D |
| Options (right to buy)F4 | $18.00 | Sep 6, 2017 | M | 7,719 | D | — | Mar 11, 2025 | Class A Common Stock | 7,719 | 7,721 | D |
| Options (right to buy)F5 | $17.07 | Sep 6, 2017 | M | 4,242 | D | — | Feb 24, 2026 | Class A Common Stock | 4,242 | 8,482 | D |
Explanation of responses
- F1The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $30.14 to $30.34, 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.
- F2Reflects securities held by a family limited liability company controlled by Mr. Beck.
- F3Reflects the grant of 11,877 options that vest in four equal annual installments beginning on March 11, 2016.
- F4Reflects the grant of 15,440 options that vest in four equal annual installments beginning on March 11, 2016.
- F5Reflects the grant of 12,724 options that vest in three equal annual installments beginning on February 24, 2017.
Remarks
Title: EVP and Cement Division President The Reporting Person disclaims beneficial ownership of the securities reported herein as indirectly beneficially owned, except to the extent of his pecuniary interest therein.