9 insiders reported 129 Form 4 transactions for Willdan Group, Inc. (WLDN) over the past 18 months (most recent 2026-06-18). Recent activity: Brisbin Thomas Donald (Director) Buy 1,241 shares, Downes Cynthia (Director) Buy 1,241 shares, Cohen Steven A (Director) Buy 1,241 shares, Shahidehpour Mohammad (Director) Buy 1,241 shares, McGinn Dennis V (Director) Buy 1,241 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-18 | Brisbin Thomas Donald | Director | Buy | 1,241 | $0 |
| 2026-06-18 | Downes Cynthia | 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 | McGinn Dennis V | Director | Buy | 1,241 | $0 |
| 2026-06-18 | REDER WANDA KAY | Director | Buy | 1,241 | $0 |
| 2026-05-15 | BIEBER MICHAEL A | PRESIDENT AND CEO | Sell | 276 | $25,872 |
| 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 | Buy | 40,009 | $650,946 |
| 2026-05-14 | BIEBER MICHAEL A | PRESIDENT AND CEO | Sell | 9,991 | $925,666 |
| 2026-05-14 | BIEBER MICHAEL A | PRESIDENT AND CEO | Buy | 9,991 | $162,554 |
| 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 |
| 2026-03-26 | EARLY CREIGHTON K | EXECUTIVE VP AND CFO | Buy | 3,780 | $0 |
| 2026-03-26 | EARLY CREIGHTON K | EXECUTIVE VP AND CFO | Sell | 2,142 | $177,358 |
| 2026-03-26 | BIEBER MICHAEL A | PRESIDENT AND CEO | Buy | 15,750 | $0 |
| 2026-03-26 | BIEBER MICHAEL A | PRESIDENT AND CEO | Sell | 6,444 | $533,563 |
| 2026-03-23 | BIEBER MICHAEL A | PRESIDENT AND CEO | Sell | 2,387 | $180,266 |
| 2026-03-23 | CHEN MICAH | EXECUTIVE VP & GENERAL COUNSEL | Sell | 615 | $46,445 |
| 2026-03-23 | EARLY CREIGHTON K | EXECUTIVE VP AND CFO | Sell | 794 | $59,963 |
| 2026-03-19 | EARLY CREIGHTON K | EXECUTIVE VP AND CFO | Sell | 873 | $68,347 |
| 2026-03-19 | CHEN MICAH | EXECUTIVE VP & GENERAL COUNSEL | Sell | 676 | $52,924 |
Source: SEC Form 4 filings · as of 2026-06-18