Form4insider filings, from the source

SEC Form 4 · accession 0001104659-16-162859

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
Dec 15, 2016
Accepted (ET)
Dec 19, 2016 · 6:03 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 StockF1,F2Dec 15, 2016C24,000—A24,000ISee Footnote
Class A Common StockF3,F2Dec 16, 2016S12,000$23.59D12,000ISee Footnote
Class A Common StockF4,F2Dec 16, 2016S12,000$23.63D0ISee Footnote
Class A Common Stockholding———55,825D

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
LP Units of Summit Materials Holdings L.P.F1,F2—Dec 15, 2016C24,000D——Class A Common Stock24,000412,699I

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.