Thomas D. Brisbin's most recent trade in Willdan Group Inc was a trade of 5,182 Common Stock done at an average price of $16.3 . Disclosure was reported to the exchange on Aug. 25, 2025.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 16.27 per share. | 25 Aug 2025 | 5,182 | 75,878 (0%) | 0% | 16.3 | 84,311 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 118.15 per share. | 25 Aug 2025 | 5,182 | 70,696 (0%) | 0% | 118.1 | 612,253 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 25 Aug 2025 | 5,182 | 89,736 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 109.39 per share. | 22 Aug 2025 | 33,096 | 98,188 (0%) | 0% | 109.4 | 3,620,371 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 110.84 per share. | 22 Aug 2025 | 27,492 | 70,696 (0%) | 0% | 110.8 | 3,047,213 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 108.90 per share. | 22 Aug 2025 | 24,988 | 131,284 (1%) | 0% | 108.9 | 2,721,193 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 104.58 per share. | 22 Aug 2025 | 10,615 | 177,676 (1%) | 0% | 104.6 | 1,110,117 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 107.65 per share. | 22 Aug 2025 | 8,974 | 156,272 (1%) | 0% | 107.6 | 966,051 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 106.68 per share. | 22 Aug 2025 | 7,520 | 165,246 (1%) | 0% | 106.7 | 802,234 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 105.36 per share. | 22 Aug 2025 | 4,910 | 172,766 (1%) | 0% | 105.4 | 517,318 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 104.66 per share. | 21 Aug 2025 | 33,950 | 221,771 (1%) | 0% | 104.7 | 3,553,207 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 103.95 per share. | 21 Aug 2025 | 33,464 | 255,721 (2%) | 0% | 104.0 | 3,478,583 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 105.91 per share. | 21 Aug 2025 | 33,380 | 188,391 (1%) | 0% | 105.9 | 3,535,276 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 103.01 per share. | 21 Aug 2025 | 17,106 | 289,185 (2%) | 0% | 103.0 | 1,762,089 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 101.87 per share. | 21 Aug 2025 | 7,000 | 306,291 (2%) | 0% | 101.9 | 713,090 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 106.34 per share. | 21 Aug 2025 | 100 | 188,291 (1%) | 0% | 106.3 | 10,634 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 104.19 per share. | 20 Aug 2025 | 7,405 | 313,291 (2%) | 0% | 104.2 | 771,527 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 109.51 per share. | 18 Aug 2025 | 58,303 | 354,160 (3%) | 0% | 109.5 | 6,384,762 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 108.63 per share. | 18 Aug 2025 | 33,233 | 412,463 (3%) | 0% | 108.6 | 3,610,101 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 110.51 per share. | 18 Aug 2025 | 26,258 | 327,902 (2%) | 0% | 110.5 | 2,901,772 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 18 Aug 2025 | 21,461 | 445,696 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 111.21 per share. | 18 Aug 2025 | 7,206 | 320,696 (2%) | 0% | 111.2 | 801,379 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 16.27 per share. | 18 Aug 2025 | 5,082 | 450,778 (3%) | 0% | 16.3 | 82,684 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 18 Aug 2025 | 5,082 | 94,918 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 112.30 per share. | 18 Aug 2025 | 4,782 | 445,996 (3%) | 0% | 112.3 | 537,019 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 113.01 per share. | 18 Aug 2025 | 300 | 445,696 (3%) | 0% | 113.0 | 33,903 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 11 Jun 2025 | 1,781 | 424,235 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 13.91 per share. | 27 May 2025 | 22,459 | 444,913 (3%) | 0% | 13.9 | 312,405 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 27 May 2025 | 22,459 | 0 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 52.34 per share. | 27 May 2025 | 22,459 | 422,454 (3%) | 0% | 52.3 | 1,175,504 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 23 May 2025 | 1,626 | 22,459 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 51.54 per share. | 23 May 2025 | 1,626 | 422,454 (3%) | 0% | 51.5 | 83,804 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 13.91 per share. | 23 May 2025 | 1,626 | 424,080 (3%) | 0% | 13.9 | 22,618 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 22 May 2025 | 5,915 | 24,085 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 52.04 per share. | 22 May 2025 | 5,915 | 422,454 (3%) | 0% | 52.0 | 307,817 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 13.91 per share. | 22 May 2025 | 5,915 | 428,369 (3%) | 0% | 13.9 | 82,278 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 16 May 2025 | 20,000 | 30,000 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 48.54 per share. | 16 May 2025 | 20,000 | 422,454 (3%) | 0% | 48.5 | 970,800 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 13.91 per share. | 16 May 2025 | 20,000 | 442,454 (3%) | 0% | 13.9 | 278,200 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 11 Mar 2025 | 15,750 | 422,454 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 43.45 per share. | 21 Nov 2024 | 7,700 | 406,704 (3%) | 0% | 43.5 | 334,565 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 42.34 per share. | 21 Nov 2024 | 7,700 | 414,404 (3%) | 0% | 42.3 | 326,018 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 41.69 per share. | 21 Nov 2024 | 7,700 | 422,104 (3%) | 0% | 41.7 | 321,013 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 19 Aug 2024 | 13,648 | 429,804 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 12 Jun 2024 | 2,248 | 416,156 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 7.13 per share. | 28 May 2024 | 18,245 | 432,153 (3%) | 0% | 7.1 | 130,087 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 28 May 2024 | 18,245 | 1,576 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 32.06 per share. | 28 May 2024 | 18,245 | 413,908 (3%) | 0% | 32.1 | 584,935 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 28 May 2024 | 1,576 | 0 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 31.37 per share. | 28 May 2024 | 1,576 | 413,908 (3%) | 0% | 31.4 | 49,439 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 7.13 per share. | 28 May 2024 | 1,576 | 415,484 (3%) | 0% | 7.1 | 11,237 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 7.13 per share. | 24 May 2024 | 397 | 414,305 (3%) | 0% | 7.1 | 2,831 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 24 May 2024 | 397 | 19,821 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 31.90 per share. | 24 May 2024 | 397 | 413,908 (3%) | 0% | 31.9 | 12,664 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 32.16 per share. | 21 May 2024 | 5,267 | 413,908 (3%) | 0% | 32.2 | 169,387 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 21 May 2024 | 5,267 | 20,218 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 7.13 per share. | 21 May 2024 | 5,267 | 419,175 (3%) | 0% | 7.1 | 37,554 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 21 May 2024 | 2,742 | 25,485 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 7.13 per share. | 21 May 2024 | 2,742 | 416,650 (3%) | 0% | 7.1 | 19,550 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 32.12 per share. | 21 May 2024 | 2,742 | 413,908 (3%) | 0% | 32.1 | 88,073 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 20 May 2024 | 14,426 | 28,227 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 32.06 per share. | 20 May 2024 | 14,426 | 413,908 (3%) | 0% | 32.1 | 462,498 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 7.13 per share. | 20 May 2024 | 14,426 | 428,334 (3%) | 0% | 7.1 | 102,857 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Sale of securities on an exchange or to another person at price $ 32.01 per share. | 16 May 2024 | 7,347 | 413,908 (3%) | 0% | 32.0 | 235,177 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 16 May 2024 | 7,347 | 42,653 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director | Exercise or conversion of derivative security received from the company (such as an option) at price $ 7.13 per share. | 16 May 2024 | 7,347 | 421,255 (3%) | 0% | 7.1 | 52,384 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 20 Mar 2024 | 15,750 | 413,908 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 24.34 per share. | 24 Aug 2023 | 1,937 | 397,746 (3%) | 0% | 24.3 | 47,147 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 24.70 per share. | 24 Aug 2023 | 126 | 397,620 (3%) | 0% | 24.7 | 3,112 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 22.82 per share. | 22 Aug 2023 | 2,442 | 402,033 (3%) | 0% | 22.8 | 55,726 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 23.29 per share. | 22 Aug 2023 | 1,347 | 400,686 (3%) | 0% | 23.3 | 31,372 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 23.81 per share. | 22 Aug 2023 | 1,003 | 399,683 (3%) | 0% | 23.8 | 23,881 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 21 Aug 2023 | 13,648 | 404,475 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 16.15 per share. | 13 Mar 2023 | 1,607 | 391,003 (3%) | 0% | 16.1 | 25,953 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 16.77 per share. | 13 Mar 2023 | 999 | 390,004 (3%) | 0% | 16.8 | 16,753 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 15.21 per share. | 10 Mar 2023 | 1,194 | 393,905 (3%) | 0% | 15.2 | 18,161 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 15.78 per share. | 10 Mar 2023 | 1,060 | 392,845 (3%) | 0% | 15.8 | 16,727 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 16.96 per share. | 10 Mar 2023 | 235 | 392,610 (3%) | 0% | 17.0 | 3,986 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Payment of exercise price or tax liability using portion of securities received from the company at price $ 17.05 per share. | 09 Mar 2023 | 3,147 | 395,099 (3%) | 0% | 17.0 | 53,656 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 17.03 per share. | 09 Mar 2023 | 2,681 | 398,246 (3%) | 0% | 17.0 | 45,657 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 07 Mar 2023 | 17,500 | 400,927 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale or transfer of securities back to the company at price $ 0.00 per share. | 14 Sep 2022 | 10,000 | 383,189 (3%) | 0% | - | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 28 Mar 2022 | 9,208 | 392,851 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 28 Mar 2022 | 8,950 | 401,801 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Payment of exercise price or tax liability using portion of securities received from the company at price $ 30.84 per share. | 28 Mar 2022 | 4,638 | 397,163 (3%) | 0% | 30.8 | 143,036 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Payment of exercise price or tax liability using portion of securities received from the company at price $ 30.84 per share. | 28 Mar 2022 | 4,507 | 392,656 (3%) | 0% | 30.8 | 138,996 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 28.19 per share. | 15 Mar 2022 | 29,191 | 383,643 (3%) | 0% | 28.2 | 822,894 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 26.44 per share. | 15 Mar 2022 | 2,713 | 412,834 (3%) | 0% | 26.4 | 71,732 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 14 Mar 2022 | 57,191 | 415,547 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 08 Mar 2022 | 23,751 | 361,783 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 31.80 per share. | 08 Mar 2022 | 3,326 | 358,356 (3%) | 0% | 31.8 | 105,767 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 30.34 per share. | 08 Mar 2022 | 101 | 361,682 (3%) | 0% | 30.3 | 3,064 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 41.72 per share. | 09 Dec 2021 | 8,000 | 345,743 (3%) | 0% | 41.7 | 333,760 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, CHIEF EXECUTIVE OFFICER, CHAIRMAN OF THE BOARD | Sale of securities on an exchange or to another person at price $ 41.96 per share. | 09 Dec 2021 | 7,936 | 337,807 (2%) | 0% | 42.0 | 332,995 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, Chief Executive Officer, Chairman of the Board | Sale of securities on an exchange or to another person at price $ 39.13 per share. | 11 Jun 2021 | 7,000 | 356,353 (3%) | 0% | 39.1 | 273,910 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, Chief Executive Officer, Chairman of the Board | Sale of securities on an exchange or to another person at price $ 39.75 per share. | 11 Jun 2021 | 3,000 | 353,353 (3%) | 0% | 39.8 | 119,250 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, Chief Executive Officer, Chairman of the Board | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 09 Jun 2021 | 48,164 | 387,605 (3%) | 0% | 0 | Common Stock | |
| Willdan Group Inc | Thomas D. Brisbin | Director, Chief Executive Officer, Chairman of the Board | Payment of exercise price or tax liability using portion of securities received from the company at price $ 39.27 per share. | 09 Jun 2021 | 24,252 | 363,353 (3%) | 0% | 39.3 | 952,376 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, Chief Executive Officer, Chairman of the Board | Exercise or conversion of derivative security received from the company (such as an option) at price $ 4.01 per share. | 26 May 2021 | 2,049 | 340,589 (2%) | 0% | 4.0 | 8,216 | Common Stock |
| Willdan Group Inc | Thomas D. Brisbin | Director, Chief Executive Officer, Chairman of the Board | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 26 May 2021 | 2,049 | 0 | - | - | Stock Options (Right to Buy) | |
| Willdan Group Inc | Thomas D. Brisbin | Director, Chief Executive Officer, Chairman of the Board | Sale of securities on an exchange or to another person at price $ 36.65 per share. | 26 May 2021 | 1,148 | 339,441 (2%) | 0% | 36.6 | 42,074 | Common Stock |