9 insiders reported 114 Form 4 transactions for Willdan Group, Inc. (WLDN) over the past 18 months (most recent 2026-09-17). Recent activity: Brisbin Thomas Donald (Director) Buy 22,635 shares, Brisbin Thomas Donald (Director) Buy 4,905 shares, Brisbin Thomas Donald (Director) Sell 900 shares, Brisbin Thomas Donald (Director) Sell 4,005 shares, Brisbin Thomas Donald (Director) Buy 3,439 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-17 | Brisbin Thomas Donald | Director | Buy | 22,635 | $368,271 |
| 2026-09-16 | Brisbin Thomas Donald | Director | Buy | 4,905 | $79,804 |
| 2026-09-16 | Brisbin Thomas Donald | Director | Sell | 900 | $72,819 |
| 2026-09-16 | Brisbin Thomas Donald | Director | Sell | 4,005 | $316,435 |
| 2026-09-09 | Brisbin Thomas Donald | Director | Buy | 3,439 | $55,953 |
| 2026-09-09 | Brisbin Thomas Donald | Director | Sell | 3,439 | $303,285 |
| 2026-09-04 | Brisbin Thomas Donald | Director | Buy | 58,757 | $955,976 |
| 2026-09-04 | Brisbin Thomas Donald | Director | Sell | 58,757 | $5.2M |
| 2026-06-18 | REDER WANDA KAY | Director | Buy | 1,241 | $0 |
| 2026-06-18 | McGinn Dennis V | Director | Buy | 1,241 | $0 |
| 2026-06-18 | Cohen Steven A | Director | Buy | 1,241 | $0 |
| 2026-06-18 | Shahidehpour Mohammad | Director | Buy | 1,241 | $0 |
| 2026-06-18 | Brisbin Thomas Donald | Director | Buy | 1,241 | $0 |
| 2026-06-18 | Downes Cynthia | Director | Buy | 1,241 | $0 |
| 2026-05-15 | BIEBER MICHAEL A | PRESIDENT AND CEO | Buy | 40,009 | $650,946 |
| 2026-05-15 | BIEBER MICHAEL A | PRESIDENT AND CEO | Buy | 16,667 | $469,843 |
| 2026-05-15 | BIEBER MICHAEL A | PRESIDENT AND CEO | Sell | 25,429 | $2.3M |
| 2026-05-15 | BIEBER MICHAEL A | PRESIDENT AND CEO | Sell | 23,015 | $2.1M |
| 2026-05-15 | BIEBER MICHAEL A | PRESIDENT AND CEO | Sell | 7,956 | $737,123 |
| 2026-05-15 | BIEBER MICHAEL A | PRESIDENT AND CEO | Sell | 276 | $25,872 |
| 2026-05-14 | BIEBER MICHAEL A | PRESIDENT AND CEO | Buy | 9,991 | $162,554 |
| 2026-05-14 | BIEBER MICHAEL A | PRESIDENT AND CEO | Sell | 9,991 | $925,666 |
| 2026-03-26 | EARLY CREIGHTON K | EXECUTIVE VP AND CFO | Buy | 3,780 | $0 |
| 2026-03-26 | CHEN MICAH | EXECUTIVE VP & GENERAL COUNSEL | Buy | 3,780 | $0 |
| 2026-03-26 | CHEN MICAH | EXECUTIVE VP & GENERAL COUNSEL | Sell | 1,660 | $137,448 |
来源：SEC Form 4 申报文件 · 截至 2026-09-17