Webster Roald Graham (CIK 1970184) reported 8 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-22). Recent activity: Sell ALGM (5,217 shares), Sell ALGM (4,277 shares), Buy ALGM (4,756 shares), Buy ALGM (544 shares), Sell ALGM (8,266 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-22 | ALLEGRO MICROSYSTEMS, INC. (ALGM) | VP, Chief Accounting Officer | Sell | 5,217 | $234,165 |
| 2026-05-19 | ALLEGRO MICROSYSTEMS, INC. (ALGM) | VP, Chief Accounting Officer | Sell | 4,277 | $184,339 |
| 2026-05-15 | ALLEGRO MICROSYSTEMS, INC. (ALGM) | VP, Chief Accounting Officer | Buy | 4,756 | $0 |
| 2026-05-15 | ALLEGRO MICROSYSTEMS, INC. (ALGM) | VP, Chief Accounting Officer | Buy | 544 | $0 |
| 2025-08-25 | ALLEGRO MICROSYSTEMS, INC. (ALGM) | VP, Chief Accounting Officer | Sell | 8,266 | $271,207 |
| 2025-05-19 | ALLEGRO MICROSYSTEMS, INC. (ALGM) | VP, Chief Accounting Officer | Buy | 9,765 | $0 |
| 2025-05-19 | ALLEGRO MICROSYSTEMS, INC. (ALGM) | VP, Chief Accounting Officer | Sell | 4,948 | $136,119 |
| 2025-05-14 | ALLEGRO MICROSYSTEMS, INC. (ALGM) | VP, Chief Accounting Officer | Buy | 1,002 | $0 |
Source: SEC Form 4 filings · as of 2026-05-22