Form4insider filings, from the source

Insider · CIK 0001727355

Karl Watson

Files at: SUM. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $751k · 1sales $0 · 0net $751k
$10k$10k$100k$100k$1M$1MbuyssalesAug 2Aug 2Aug 2Aug 3Aug 3Aug 3Aug 4

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jan 8, 2019 FMForm 4 →Feb 5, 9:07 pm ESTSummit Materials, Inc.SUM27,040$14.53$82,12451,236— plan? late
Aug 3, 2018 PForm 4 →Aug 7, 6:25 pm EDTSummit Materials, Inc.SUM35,500$21.15$750,82335,500— plan?

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Feb 28, 2019 AForm 4 →Mar 4, 8:03 pm ESTSummit Materials, Inc.SUM28,602——28,602—
Jan 8, 2019 MForm 4 →Feb 5, 9:07 pm ESTSummit Materials, Inc.SUM21,388——42,776— late
Jan 8, 2018 AForm 4 →Jan 10, 6:11 pm ESTSummit Materials, Inc.SUM64,164——64,164—