Updated Jul 16, 2026
Bosway William T has filed 3 SEC Form 4 filings across 2 companies in the last 90 days — buying. Lifetime open-market purchases: $1.01M. Historical track record: 3/5 stars across 3 tracked purchases.

William T. Bosway is an experienced executive in the manufacturing and industrial sectors. He currently serves as the President and CEO of Gibraltar Industries, Inc., a company that specializes in providing products and services for the residential and commercial construction markets. Bosway has a strong background in leadership and operational management, contributing to the growth and strategic direction of the company.
| Role | President and CEO, Director |
|---|---|
| Notability | 70/100 |
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
| InsiderAlpha rating | ★★★☆☆ (3/5) |
|---|---|
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 6667% |
| 90-day win rate | 0% |
| Avg 5-day return | +137.27% |
| Avg 30-day return | +101.31% |
| Avg 90-day return | -465.75% |
| Best 30-day return | +344.56% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-27 | ROCK | GIBRALTAR INDUSTRIES, INC. | P — Open-market purchase | 19.7K | $37.44 | $739K |
| 2026-05-11 | STRL | STERLING INFRASTRUCTURE, INC. | A — Grant or award | 181 | $0.00 | |
| 2026-03-16 | ROCK | GIBRALTAR INDUSTRIES, INC. | P — Open-market purchase | 1.0K | $41.37 | $41K |
| 2026-03-10 | ROCK | GIBRALTAR INDUSTRIES, INC. | P — Open-market purchase | 1.5K | $39.52 | $59K |
| 2026-03-10 | ROCK | GIBRALTAR INDUSTRIES, INC. | P — Open-market purchase | 4.5K | $38.29 | $172K |
| 2026-03-05 | ROCK | GIBRALTAR INDUSTRIES, INC. | F — Tax withholding / forfeiture | 30.0K | $43.05 | $1.29M |
| 2026-03-04 | ROCK | GIBRALTAR INDUSTRIES, INC. | F — Tax withholding / forfeiture | 2.0K | $43.83 | $86K |
| 2026-03-04 | ROCK | GIBRALTAR INDUSTRIES, INC. | A — Grant or award | 27.8K | $0.00 | |
| 2026-03-03 | ROCK | GIBRALTAR INDUSTRIES, INC. | F — Tax withholding / forfeiture | 5.9K | $45.48 | $267K |
William T. Bosway is an experienced executive in the manufacturing and industrial sectors. He currently serves as the President and CEO of Gibraltar Industries, Inc., a company that specializes in providing products and services for the residential and commercial construction markets. Bosway has a strong background in leadership and operational management, contributing to the g…
3 primary Form 4 filings in the last 90 days, covering 2 companies.
Recorded transactions: 4 open-market purchases ($1.01M) and 0 open-market sales () across all tracked filings.
Across 3 tracked purchases, Bosway William T averaged +101.3% avg 30-day return with a 6667% 30-day win rate. InsiderAlpha rates the track record at 3/5 stars.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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