Form4insider filings, from the source

SEC Form 4 · accession 0001104659-18-014204

Summit Materials, Inc. · SUM

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

Reporting owner
Period of report
Feb 27, 2018
Accepted (ET)
Mar 1, 2018 · 9:00 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,F2Feb 27, 2018C40,000—A40,000ISee Footnote
Class A Common StockF3,F4Feb 28, 2018M4,098—A10,601D
Class A Common StockF5,F2Mar 1, 2018S30,000$32.01D10,000ISee Footnote

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
LP Units of Summit Materials Holdings L.P.F2,F1—Feb 27, 2018C40,000D——Class A Common Stock40,000162,752I
Restricted Stock UnitsF6,F7—Feb 28, 2018M4,098D——Class A Common Stock4,0980D
Restricted Stock UnitsF6,F8—Feb 28, 2018A3,994A——Class A Common Stock3,9943,994D

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.