Howard L. Lance, Director at Summit Materials, Inc. (SUM), sold 75,000 shares at $19.79 ($1.5M) on 2016-04-06, disclosed to the SEC on 2016-04-07.
Open-market sale of $1.5M SUM by Director. 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.
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