Christopher Burke Gaskill insider trades: Summit Materials (SUM) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Christopher reports to the SEC
Open-market buys and sales
3 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Dec 10, 2024 | SUM | ↓ Sell | 1,536 | $50.91 | $78K | Direct | Dec 11, 2024 (1d) |
| May 26, 2022 | SUM | ↓ Sell | 8,104 | $27.63 | $224K | Direct | May 26, 2022 (0d) |
| Aug 10, 2021 | SUM | ↓ Sell | 5,000 | $35.05 | $175K | Direct | Aug 12, 2021 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Christopher Burke Gaskill's insider trades
Christopher Burke Gaskill is See Remarks at Summit Materials (SUM). Since Aug 10, 2021, Christopher has reported no open-market purchases and 3 sales worth $477K on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include shares withheld for taxes (9 filings), option exercises (8 filings), grants and awards (6 filings), gifts (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every SUM insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.