Who
Michael A. Bieber
President and CEO
Company insider
Files Form 4 as: President and CEO, Willdan Group; Senior Vice President, Tetra Tech.
In numbers
- Trades disclosed
- 314
- Buys
- 1
- Sells
- 43
- Bought
- $56K
- Sold
- $25.0M
- Companies
- 2
- Companies where not an officer
- 0
- First trade
- 6 Mar 2006
- Last trade
- 14 May 2026
- Last filed
- 15 May 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 14 May 2026filed 15 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Code M | $651K40,009 at $16.27 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Code M | $470K16,667 at $28.19 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Sold | $2.3M25,429 at $90.88 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan Groupoption or derivative · Professional Services | SEC FORM 4 Code M | —40,009 at $0.00 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan Groupoption or derivative · Professional Services | SEC FORM 4 Code M | —16,667 at $0.00 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Sold | $2.1M23,015 at $91.95 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Sold | $737K7,956 at $92.65 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Sold | $26K276 at $93.74 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan Groupoption or derivative · Professional Services | SEC FORM 4 Code M | —40,009 at $0.00 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan Groupoption or derivative · Professional Services | SEC FORM 4 Code M | —16,667 at $0.00 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Code M | $651K40,009 at $16.27 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Code M | $470K16,667 at $28.19 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Sold | $2.3M25,429 at $90.88 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Sold | $2.1M23,015 at $91.95 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Sold | $737K7,956 at $92.65 | filing |
| 14 May 2026filed 15 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Sold | $26K276 at $93.74 | filing |
| 13 May 2026filed 14 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Code M | $163K9,991 at $16.27 | filing |
| 13 May 2026filed 14 May 2026 | WLDN Willdan GroupProfessional Services | SEC FORM 4 Sold | $926K9,991 at $92.65 | filing |
| 13 May 2026filed 14 May 2026 | WLDN Willdan Groupoption or derivative · Professional Services | SEC FORM 4 Code M | —9,991 at $0.00 | filing |
| 13 May 2026filed 14 May 2026 | WLDN Willdan Groupoption or derivative · Professional Services | SEC FORM 4 Code M | —9,991 at $0.00 | filing |
News
No headline names them, or the companies they trade most, lately.