Form4insider filings, from the source

SEC Form 4 · accession 0001104659-18-012913

Summit Materials, Inc. · SUM

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

Reporting owner
Michael John Brady
Officer — See Remarks
Period of report
Feb 24, 2018
Accepted (ET)
Feb 27, 2018 · 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,F2Feb 24, 2018M2,698—A5,837D
Class A Common StockFeb 24, 2018F1,030$31.74D4,807D

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
Restricted Stock UnitsF3,F4—Feb 24, 2018M2,698D——Class A Common Stock2,6982,699D

Explanation of responses

Remarks

Title: EVP & Chief Business Development Officer