Brian James Harris is CFO & VP at Summit Materials, Inc. (SUM). They have made 9 open-market trades across 1 company since 2015, most recently 2026-05-29.
CIK 0001635271
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
3 open-market purchases totalling $1.1M since 2015, against 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SUM | SELL | 2019-11-19 | 2019-11-21 | $24.10 | $7.0M | -0.2% | -2.0% | -2.5% |
| SUM | SELL | 2019-11-04 | 2019-11-06 | $23.60 | $708K | +3.5% | +0.7% | -0.4% |
| SUM | BUY | 2018-12-04 | 2018-12-10 | $13.19 | $53K | -10.7% | +8.1% | +35.7% |
| SUM | BUY | 2018-11-08 | 2018-11-13 | $14.12 | $71K | +6.7% | -12.6% | +14.5% |
| SUM | SELL | 2017-06-15 | 2017-06-16 | $28.20 | $564K | +0.8% | +0.3% | +3.6% |
| SUM | SELL | 2016-12-16 | 2016-12-19 | $23.61 | $567K | +0.5% | +0.0% | -1.3% |
| SUM | SELL | 2016-07-19 | 2016-07-21 | $20.67 | $620K | -5.2% | -4.9% | -13.0% |
| SUM | SELL | 2016-04-19 | 2016-04-21 | $20.00 | $1.6M | +5.6% | +5.5% | +5.6% |
| SUM | BUY | 2015-03-17 | 2015-03-19 | $18.00 | $990K | -21.9% | -1.3% | -1.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.