BIEBER MICHAEL A - Insider Non-Derivative Transactions at Willdan Group, Inc. (WLDN) - (SEC)
Updated on January 3, 2026.
According to recent SEC insider information filed on Aug 18, 2025, BIEBER MICHAEL A's relationship to Willdan Group, Inc. (WLDN) is Director,Officer (PRESIDENT AND CEO), and currently has 214,330 shares of Common Stock.
The chart below shows the number of shares owned, and the table shows the recent insider transactions.
You can see similar information for other WLDN insiders.
Related Topics: SEC Topic List.
Data Source: SEC.
BIEBER MICHAEL A - Insider Non-Derivative Transactions of WLDN Common Stock
BIEBER MICHAEL A - Insider Non-Derivative Transactions at WLDN
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| Date | Transaction | No. of Shares | Price Per Share | Shares Owned After Transactions |
|---|---|---|---|---|
| Aug 19, 2025 | F -- (Common Stock) | 6788 | 109.53 | 207542 |
| Aug 19, 2025 | Acquisition -- (Common Stock) | 12963 | 0 | 214330 |
| May 17, 2025 | Sell -- (Common Stock) | 25000 | 48.11 | 200981 |
| May 17, 2025 | M -- (Common Stock) | 25000 | 13.91 | 225981 |
| Mar 25, 2025 | F -- (Common Stock) | 8246 | 42.53 | 200981 |
| Mar 25, 2025 | Acquisition -- (Common Stock) | 15750 | 0 | 209227 |
| Mar 21, 2025 | F -- (Common Stock) | 3054 | 43.06 | 193477 |
| Mar 18, 2025 | Acquisition -- (Common Stock) | 19250 | 0 | 196531 |
| Mar 12, 2025 | F -- (Common Stock) | 6268 | 40.11 | 177281 |
| Mar 12, 2025 | Acquisition -- (Common Stock) | 11970 | 0 | 183549 |
| Mar 8, 2025 | F -- (Common Stock) | 2429 | 41.8 | 171579 |
| Nov 12, 2024 | Sell -- (Common Stock) | 10868 | 45.67 | 173654 |
| Nov 12, 2024 | M -- (Common Stock) | 10868 | 13.49 | 184522 |
| Nov 7, 2024 | Sell -- (Common Stock) | 1804 | 45.86 | 173654 |
| Nov 7, 2024 | M -- (Common Stock) | 1804 | 13.49 | 175458 |
| Aug 20, 2024 | F -- (Common Stock) | 4318 | 37.36 | 173654 |
| Aug 20, 2024 | Acquisition -- (Common Stock) | 8246 | 0 | 177972 |
| Aug 13, 2024 | Sell -- (Common Stock) | 750 | 36.46 | 169726 |
| Aug 13, 2024 | M -- (Common Stock) | 750 | 13.49 | 170476 |
| Aug 10, 2024 | Sell -- (Common Stock) | 9209 | 36.36 | 169726 |
| Aug 10, 2024 | M -- (Common Stock) | 9209 | 13.49 | 178935 |
| Aug 9, 2024 | Sell -- (Common Stock) | 10273 | 36.43 | 169726 |
| Aug 9, 2024 | M -- (Common Stock) | 10273 | 13.49 | 179999 |
| Aug 8, 2024 | Sell -- (Common Stock) | 10346 | 36.61 | 169726 |
| Aug 8, 2024 | M -- (Common Stock) | 10346 | 13.49 | 180072 |
| Aug 7, 2024 | Sell -- (Common Stock) | 12000 | 36.58 | 169726 |
| Aug 7, 2024 | M -- (Common Stock) | 12000 | 13.49 | 181726 |
| Jun 14, 2024 | Sell -- (Common Stock) | 4460 | 30.32 | 169043 |
| Jun 14, 2024 | M -- (Common Stock) | 6000 | 13.49 | 173503 |
| Jun 13, 2024 | Sell -- (Common Stock) | 4394 | 30.98 | 167503 |
| Jun 13, 2024 | M -- (Common Stock) | 6000 | 13.49 | 171897 |
| Jun 12, 2024 | Sell -- (Common Stock) | 4464 | 30.25 | 165897 |
| Jun 12, 2024 | M -- (Common Stock) | 6000 | 13.49 | 170361 |
| Jun 11, 2024 | Sell -- (Common Stock) | 3333 | 31.03 | 164361 |
| Jun 11, 2024 | M -- (Common Stock) | 4514 | 13.49 | 167694 |
| Mar 21, 2024 | Acquisition -- (Common Stock) | 17500 | 0 | 156513 |
| Mar 21, 2024 | F -- (Common Stock) | 5303 | 27.55 | 163180 |
| Mar 21, 2024 | Acquisition -- (Common Stock) | 11970 | 0 | 168483 |
| Mar 8, 2024 | F -- (Common Stock) | 2201 | 19.85 | 139013 |
| Aug 25, 2023 | Sell -- (Common Stock) | 62 | 24.7 | 140676 |
| Aug 25, 2023 | Sell -- (Common Stock) | 964 | 24.34 | 140738 |
| Aug 24, 2023 | Sell -- (Common Stock) | 499 | 23.81 | 141702 |
| Aug 24, 2023 | Sell -- (Common Stock) | 671 | 23.29 | 142201 |
| Aug 23, 2023 | Sell -- (Common Stock) | 1216 | 22.82 | 142872 |
| Aug 22, 2023 | Acquisition -- (Common Stock) | 8246 | 0 | 144088 |
| Mar 14, 2023 | Sell -- (Common Stock) | 1094 | 16.77 | 135019 |
| Mar 14, 2023 | Sell -- (Common Stock) | 1758 | 16.15 | 136113 |
| Mar 11, 2023 | Sell -- (Common Stock) | 257 | 16.96 | 137871 |
| Mar 11, 2023 | Sell -- (Common Stock) | 1159 | 15.78 | 138128 |
| Mar 11, 2023 | Sell -- (Common Stock) | 1306 | 15.21 | 139287 |
| Mar 10, 2023 | Sell -- (Common Stock) | 2932 | 17.03 | 140593 |
| Mar 8, 2023 | Acquisition -- (Common Stock) | 13300 | 0 | 143525 |
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