Willdan Group Inc.
Last updated September 27, 2026
Organization details
- Legal name
- Willdan Group Inc.
- Ownership
- Public
- Status
- Active
- SIC code
- 8711 — Services-Engineering Services
- Jurisdiction of incorporation
- Delaware
- Headquarters city
- Anaheim
- Headquarters state / province
- California
- Headquarters country
- United States
- Fiscal year end
- January
- Ticker symbol
- WLDN
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0001370450
- EIN
- 14-1951112
- Wikidata ID
- Q17087372
Board of directors
-
Cynthia Downes · DirectorSince 2023
-
Dennis McGinn V · DirectorSince 2023
-
Keith Renken · DirectorSince 2023
-
Michael A. Bieber · Director · PRESIDENT AND CEOSince 2024
-
Mohammad Shahidehpour · DirectorSince 2023
-
Steven A. Cohen · DirectorSince 2023
-
Thomas Donald Brisbin · Director · CHIEF EXECUTIVE OFFICERSince 2023
-
Wanda Kay Reder · DirectorSince 2023
Chief executives
Thomas Donald Brisbin
· CHIEF EXECUTIVE OFFICER
Dates unknown
Michael A. Bieber
· PRESIDENT AND CEO
Dates unknown
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $12,478,180
- 10 sales by 3 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 16, 2026 | Thomas Donald Brisbin Director | Option exercise | +22,635 | $16.27 | $368,271 |
| Sep 15, 2026 | Thomas Donald Brisbin Director | Option exercise | +4,905 | $16.27 | $79,804 |
| Sep 15, 2026 | Thomas Donald Brisbin Director | Open-market sale | −4,005 | $79.01 | $316,435 |
| Sep 15, 2026 | Thomas Donald Brisbin Director | Open-market sale | −900 | $80.91 | $72,819 |
| Sep 8, 2026 | Thomas Donald Brisbin Director | Option exercise | +3,439 | $16.27 | $55,953 |
| Sep 8, 2026 | Thomas Donald Brisbin Director | Open-market sale | −3,439 | $88.19 | $303,285 |
| Sep 3, 2026 | Thomas Donald Brisbin Director | Option exercise | +58,757 | $16.27 | $955,976 |
| Sep 3, 2026 | Thomas Donald Brisbin Director | Open-market sale | −58,757 | $88.14 | $5,178,842 |
| Jun 17, 2026 | Mohammad Shahidehpour Director | Grant or award | +1,241 | — | — |
| Jun 17, 2026 | Cynthia Downes Director | Grant or award | +1,241 | — | — |
| Jun 17, 2026 | Wanda Kay Reder Director | Grant or award | +1,241 | — | — |
| Jun 17, 2026 | Dennis McGinn V Director | Grant or award | +1,241 | — | — |
| Jun 17, 2026 | Steven A. Cohen Director | Grant or award | +1,241 | — | — |
| Jun 17, 2026 | Thomas Donald Brisbin Director | Grant or award | +1,241 | — | — |
| May 14, 2026 | Michael A. Bieber Director, Officer (PRESIDENT AND CEO) | Option exercise | +40,009 | $16.27 | $650,946 |
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