Kevin A. Gill, See Remarks at Summit Materials, Inc. (SUM), sold 10,000 shares at $21.87 ($219K) on 2016-11-16, disclosed to the SEC on 2016-11-18.
Open-market sale of $219k SUM by See Remarks. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.