Skip to contentBIEBER MICHAEL A — Willdan Group, Inc. insider: 288 transactions · InsiderLensInsider trading activity of BIEBER MICHAEL A
- Transactions on record
- 288
- since Jan 23, 2004
- Open-market buys
- 1
- $55.8K
- Open-market sells
- 82
- $18.9M
- Companies traded
- 2
- last filing May 15, 2026
Figures computed from official regulatory filings — methodology.
Companies where BIEBER MICHAEL A has traded
Track record of BIEBER MICHAEL A
Insufficient history for a statistical track record (fewer than 5 open-market buys).
Transaction history of BIEBER MICHAEL A
Co-insiders of BIEBER MICHAEL A
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BROWNLIE WILLIAM RTETRA TECH INC
| Company | Filed | Type | Qty | Price | Value · USD | Src |
|---|
| May 15, 2026 | Sell | -25,429 | 90.88 USD | $2.3M | SEC |
| May 15, 2026 | Sell | -23,015 | 91.95 USD | $2.1M | SEC |
| May 15, 2026 | Exercise | 16,667 | 28.19 USD | $469.8K | SEC |
| May 15, 2026 | Sell | -7,956 | 92.65 USD | $737.1K | SEC |
| May 15, 2026 | Exercise | 40,009 | 16.27 USD | $650.9K | SEC |
| May 15, 2026 | Sell | -276 | 93.74 USD | $25.9K | SEC |
| May 15, 2026 | ExerciseD | -16,667 | 0.00 USD | $0 | SEC |
| May 15, 2026 | ExerciseD | -40,009 | 0.00 USD | $0 | SEC |
| May 14, 2026 | Exercise | 9,991 | 16.27 USD | $162.6K | SEC |
| May 14, 2026 | Sell | -9,991 | 92.65 USD | $925.7K | SEC |
| May 14, 2026 | ExerciseD | -9,991 | 0.00 USD | $0 | SEC |
| Mar 26, 2026 | Other | -6,444 | 82.80 USD | $533.6K | SEC |
| Mar 26, 2026 | Award | 15,750 | 0.00 USD | $0 | SEC |
| Mar 23, 2026 | Other | -2,387 | 75.52 USD | $180.3K | SEC |
| Mar 19, 2026 | Other | -2,625 | 78.29 USD | $205.5K | SEC |
| Mar 17, 2026 | Other | -7,090 | 78.61 USD | $557.3K | SEC |
| Mar 17, 2026 | Award | 17,326 | 0.00 USD | $0 | SEC |
| Mar 12, 2026 | Other | -7,697 | 83.98 USD | $646.4K | SEC |
| Mar 12, 2026 | Award | 18,810 | 0.00 USD | $0 | SEC |
| Mar 11, 2026 | Other | -1,814 | 82.98 USD | $150.5K | SEC |
| Mar 5, 2026 | Award | 18,000 | 0.00 USD | $0 | SEC |
| Aug 20, 2025 | Award | 12,963 | 0.00 USD | $0 | SEC |
| Aug 20, 2025 | Other | -6,788 | 109.53 USD | $743.5K | SEC |
| May 20, 2025 | Sell | -25,000 | 48.11 USD | $1.2M | SEC |
| May 20, 2025 | Exercise | 25,000 | 13.91 USD | $347.8K | SEC |