Blackstone Holdings II L.P., 10% Owner at Summit Materials, Inc. (SUM), sold 9,272,378 shares at $20.00 ($185.4M) on 2016-04-19, disclosed to the SEC on 2016-04-21.
Open-market sale of $185.4M SUM by 10% Owner. 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.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $20.00 | 7,047 | $141K | 0.1% |
| 2 | $20.00 | 12,126 | $243K | 0.1% |
| 3 | $20.00 | 143,097 | $2.9M | 1.5% |
| 4 | $20.00 | 1,586,120 | $31.7M | 17.1% |
| 5 | $20.00 | 7,523,988 | $150.5M | 81.1% |
| Total | $20.00 avg | 9,272,378 |
| $185.4M |
| 100% |
| Filing → |
| BAER | SELL | 2026-08-06 | $3.2M | — | Filing → |
| JMKE | SELL | 2026-08-04 | $648.8M | — | Filing → |
| LGN | SELL | 2026-01-08 | $56.7M | — | Filing → |