Based on data from the past 90 days ending December 12, 2025, Willdan Group's three largest insider shareholders are President And CEO Michael A Bieber (207.54K shares), Executive VP And Cfo Creighton K Early (73.68K shares), Director Thomas Donald Brisbin (70.70K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Fund, L.P. Forager | 1,255,765 | 11 Jul, 2024 | |
| Michael A Bieber | President And CEO | 207,542 | 20 Aug, 2025 |
| Creighton K Early | Executive VP And Cfo | 73,681 | 20 Aug, 2025 |
| Thomas Donald Brisbin | 70,696 | 26 Aug, 2025 | |
| Keith Renken | 61,320 | 09 Jun, 2023 | |
| Daniel Chow | Chief Operating Officer | 60,850 | 11 Jun, 2021 |
| Keith W Renken | 57,735 | 10 Jun, 2022 | |
| Micah Chen | Executive VP & General Counsel | 40,423 | 22 Sep, 2025 |
| Raymond W Jr Holdsworth | 39,958 | 11 Jun, 2021 | |
| Steven A Cohen | 26,849 | 14 Aug, 2025 | |
| Paul Milton Whitelaw | SVP And Business Development | 25,533 | 30 Mar, 2022 |
| Douglas James Mceachern | 21,646 | 11 Jun, 2021 | |
| Stacy B. Mclaughlin | Chief Financial Officer | 19,411 | 26 Mar, 2021 |
| Adam C Procell | Chief Strategy Officer | 17,490 | 09 Sep, 2021 |
| Mohammad Shahidehpour | 14,548 | 12 Jun, 2025 | |
| Dennis V Mcginn | 11,330 | 22 Sep, 2025 | |
| Wanda Kay Reder | 10,676 | 18 Aug, 2025 | |
| Debra Coy | 10,287 | 11 Jun, 2021 | |
| Cynthia Downes | 8,909 | 18 Aug, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 18 Sep, 2025 | Dennis V Mcginn | Common Stock | D | 7,298 | $106.32 | 11,330 | D | S |
| 18 Sep, 2025 | Micah Chen | Common Stock | A | 10,000 | $32.79 | 50,423 | D | M |
| 18 Sep, 2025 | Micah Chen | Common Stock | D | 10,000 | $106.00 | 40,423 | D | S |
| 25 Aug, 2025 | Thomas Donald Brisbin | Common Stock | A | 5,182 | $16.27 | 75,878 | D | M |
| 25 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 5,182 | $118.15 | 70,696 | D | S |
| 22 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 10,615 | $104.58 | 177,676 | D | S |
| 22 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 4,910 | $105.36 | 172,766 | D | S |
| 22 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 7,520 | $106.68 | 165,246 | D | S |
| 22 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 8,974 | $107.65 | 156,272 | D | S |
| 22 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 24,988 | $108.90 | 131,284 | D | S |
| 22 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 33,096 | $109.39 | 98,188 | D | S |
| 22 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 27,492 | $110.84 | 70,696 | D | S |
| 21 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 7,000 | $101.87 | 306,291 | D | S |
| 21 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 17,106 | $103.01 | 289,185 | D | S |
| 21 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 33,464 | $103.95 | 255,721 | D | S |
| 21 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 33,950 | $104.66 | 221,771 | D | S |
| 21 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 33,380 | $105.91 | 188,391 | D | S |
| 21 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 100 | $106.34 | 188,291 | D | S |
| 20 Aug, 2025 | Thomas Donald Brisbin | Common Stock | D | 7,405 | $104.19 | 313,291 | D | S |
| 18 Aug, 2025 | Michael A Bieber | Common Stock | A | 12,963 | $0.00 | 214,330 | D | A |