William T Bosway insider trades: Gibraltar Industries (ROCK) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where William reports to the SEC
Open-market buys and sales
4 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 26, 2026 | ROCK | ↑ Buy | 19,735 | $37.44 | $739K | Direct | May 27, 2026 (1d) |
| Mar 13, 2026 | ROCK | ↑ Buy | 1,000 | $41.37 | $41K | Direct | Mar 16, 2026 (3d) |
| Mar 10, 2026 | ROCK | ↑ Buy | 6,000 | $38.60 | $232K | Direct | Mar 10, 2026 (0d) |
| Nov 21, 2017 | DOV | ↓ Sell | 6,087 | $94.66 | $576K | Direct | Nov 21, 2017 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ROCK insiders
Open-market trades in the last 12 months
About William T Bosway's insider trades
William T Bosway is President and CEO at Gibraltar Industries (ROCK). Since Nov 21, 2017, William has reported 3 open-market purchases worth $1.0M and 1 sale worth $576K on SEC Form 4. In the last 12 months: 3 buys ($1.0M).
Their filings also include grants and awards (42 filings), shares withheld for taxes (18 filings), shares returned to the company (6 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 ROCK insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.