Form4insider filings, from the source

SEC Form 4 · accession 0001104659-18-018405

Summit Materials, Inc. · SUM

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

Reporting owner
Thomas W. Hill
Officer — President & CEO · Director
Period of report
Mar 14, 2018
Accepted (ET)
Mar 16, 2018 · 7:22 pm EDT
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 StockMar 14, 2018M4,343$18.00A146,245D
Class A Common StockMar 14, 2018M89,850$18.00A236,095D
Class A Common StockMar 14, 2018M47,959$17.07A284,054D
Class A Common StockF1,F2Mar 14, 2018S300$31.26D283,754D
Class A Common StockF1,F3Mar 14, 2018S18,748$31.60D265,006D
Class A Common StockF1,F4Mar 14, 2018S123,104$31.01D141,902D
Class A Common StockMar 15, 2018M61,375$18.00A203,277D
Class A Common StockF1,F5Mar 15, 2018S7,006$31.07D196,271D
Class A Common StockF1,F6Mar 15, 2018S54,369$30.31D141,902D
Class A Common StockMar 16, 2018M244,432$18.00A386,334D
Class A Common StockF1,F7Mar 16, 2018S5,600$30.59D380,734D
Class A Common StockF1,F8Mar 16, 2018S238,832$31.15D141,902D
Class A Common StockF9holding———365ISee Footnote

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
Options (right to buy)F10$18.00Mar 14, 2018M4,343D—Mar 11, 2025Class A Common Stock4,343275,248D
Options (right to buy)F11$18.00Mar 14, 2018M89,850D—Mar 11, 2025Class A Common Stock89,850566,673D
Options (right to buy)F12$17.07Mar 14, 2018M47,959D—Feb 24, 2026Class A Common Stock47,95923,979D
Options (right to buy)F11$18.00Mar 15, 2018M61,375D—Mar 11, 2025Class A Common Stock61,375505,298D
Options (right to buy)F11$18.00Mar 16, 2018M244,432D—Mar 11, 2015Class A Common Stock244,432260,866D

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.