Form4insider filings, from the source

SEC Form 4 · accession 0001104659-19-012633

Summit Materials, Inc. · SUM

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner
Brian James Harris
Officer — EVP & Chief Financial Officer
Period of report
Feb 28, 2019
Accepted (ET)
Mar 4, 2019 · 8:01 pm EST
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001621563

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Class A Common StockF1Feb 28, 2019M3,843—A84,205D
Class A Common StockF1Feb 28, 2019M4,675—A88,880D
Class A Common StockFeb 28, 2019F2,414$17.00D86,466D
Class A Common StockF2holding———60,000ISee Footnote

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
Restricted Stock UnitsF3,F4—Feb 28, 2019M3,843D——Class A Common Stock3,8433,843D
Restricted Stock UnitsF3,F5—Feb 28, 2019M4,675D——Class A Common Stock4,6759,352D
Restricted Stock UnitsF3,F6—Feb 28, 2019A29,460A——Class A Common Stock29,46029,460D

Explanation of responses

Remarks

The Reporting Person disclaims beneficial ownership of the securities reported herein as indirectly beneficially owned, except to the extent of his pecuniary interest therein.