Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Willdan Group, Inc.WLDN · Entity 4758 | Director | September 16, 2026 | September 17, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Willdan Group, Inc.
Report date September 16, 2026 · Filed September 17, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 119,322 |
Reported balance
After 2026-09-16 transaction · row 1
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 1 · 2026-09-16 · Exercise / conversion · Acquired 22,635 · Balance 119,322 F1: Includes 1,241 shares of restricted stock that vest on June 17, 2027. |
| Stock Options (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $16.27 · Expires 2026-11-03 | Direct | 0 |
Reported balance
After 2026-09-16 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2026-09-16 · Exercise / conversion · Disposed 22,635 · Balance 0 F2: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of November 3, 2017, November 3, 2018 and November 3, 2019. |
Filing footnotes · ownership attribution and instrument terms
F1: Includes 1,241 shares of restricted stock that vest on June 17, 2027.
F2: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of November 3, 2017, November 3, 2018 and November 3, 2019.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 16, 2026 Filed Sep 17, 2026 21:44 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionStock Options (Right to Buy) · Derivative | 22,635 | $0.00 Strike: $16.27 | $0.00 |
DisclosureSEC source: 0001395188-26-000012 · form4-09172026_090952.xml · derivative · entry 2 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 22,635 shares Expires 2026-11-03 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of November 3, 2017, November 3, 2018 and November 3, 2019. Read SEC document |
| September 16, 2026 Filed Sep 17, 2026 21:44 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionCommon Stock | 22,635 | $16.27 | $368,271.45 |
DisclosureSEC source: 0001395188-26-000012 · form4-09172026_090952.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 119,322 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · balance_after: Includes 1,241 shares of restricted stock that vest on June 17, 2027. Read SEC document |
| September 15, 2026 Filed Sep 16, 2026 21:32 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionStock Options (Right to Buy) · Derivative | 4,905 | $0.00 Strike: $16.27 | $0.00 |
DisclosureSEC source: 0001395188-26-000010 · form4-09162026_090951.xml · derivative · entry 4 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,635 Underlying: Common Stock · 4,905 shares Expires 2026-11-03 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F4 · derivative.exercise_date: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of November 3, 2017, November 3, 2018 and November 3, 2019. Read SEC document |
| September 15, 2026 Filed Sep 16, 2026 21:32 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 900 | $80.91 | $72,819.00 |
DisclosureSEC source: 0001395188-26-000010 · form4-09162026_090951.xml · nonDerivative · entry 3 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 96,687 F3 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $80.67 to $80.94, inclusive. F1 · balance_after: Includes 1,241 shares of restricted stock that vest on June 17, 2027. Read SEC document |
| September 15, 2026 Filed Sep 16, 2026 21:32 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 4,005 | $79.01 | $316,435.05 |
DisclosureSEC source: 0001395188-26-000010 · form4-09162026_090951.xml · nonDerivative · entry 2 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 97,587 F2 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $79.00 to $79.19, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2) and (3). F1 · balance_after: Includes 1,241 shares of restricted stock that vest on June 17, 2027. Read SEC document |
| September 15, 2026 Filed Sep 16, 2026 21:32 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionCommon Stock | 4,905 | $16.27 | $79,804.35 |
DisclosureSEC source: 0001395188-26-000010 · form4-09162026_090951.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 101,592 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · balance_after: Includes 1,241 shares of restricted stock that vest on June 17, 2027. Read SEC document |
| September 08, 2026 Filed Sep 9, 2026 22:01 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionStock Options (Right to Buy) · Derivative | 3,439 | $0.00 Strike: $16.27 | $0.00 |
DisclosureSEC source: 0001395188-26-000008 · form4-09092026_100957.xml · derivative · entry 3 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 27,540 Underlying: Common Stock · 3,439 shares Expires 2026-11-03 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_date: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of November 3, 2017, November 3, 2018 and November 3, 2019. Read SEC document |
| September 08, 2026 Filed Sep 9, 2026 22:01 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 3,439 | $88.19 | $303,285.41 |
DisclosureSEC source: 0001395188-26-000008 · form4-09092026_100957.xml · nonDerivative · entry 2 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 96,687 F2 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $88.18 to $88.25, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2). F1 · balance_after: Includes 1,241 shares of restricted stock that vest on June 17, 2027. Read SEC document |
| September 08, 2026 Filed Sep 9, 2026 22:01 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionCommon Stock | 3,439 | $16.27 | $55,952.53 |
DisclosureSEC source: 0001395188-26-000008 · form4-09092026_100957.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 100,126 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · balance_after: Includes 1,241 shares of restricted stock that vest on June 17, 2027. Read SEC document |
| September 03, 2026 Filed Sep 4, 2026 21:41 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionStock Options (Right to Buy) · Derivative | 58,727 | $0.00 Strike: $16.27 | $0.00 |
DisclosureSEC source: 0001395188-26-000006 · form4-09042026_090943.xml · derivative · entry 3 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 30,979 Underlying: Common Stock · 58,727 shares Expires 2026-11-03 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_date: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of November 3, 2017, November 3, 2018 and November 3, 2019. Read SEC document |
| September 03, 2026 Filed Sep 4, 2026 21:41 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 58,757 | $88.14 | $5,178,841.98 |
DisclosureSEC source: 0001395188-26-000006 · form4-09042026_090943.xml · nonDerivative · entry 2 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 96,687 F2 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $88.05 to $88.49, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2). F1 · balance_after: Includes 1,241 shares of restricted stock that vest on June 17, 2027. Read SEC document |
| September 03, 2026 Filed Sep 4, 2026 21:41 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionCommon Stock | 58,757 | $16.27 | $955,976.39 |
DisclosureSEC source: 0001395188-26-000006 · form4-09042026_090943.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 155,444 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · balance_after: Includes 1,241 shares of restricted stock that vest on June 17, 2027. Read SEC document |
| June 17, 2026 Filed Jun 18, 2026 21:03 UTC | Willdan Group, Inc. WLDN · Entity 4758 | GrantCommon Stock | 1,241 | $0.00 | $0.00 |
DisclosureSEC source: 0001395188-26-000004 · form4-06182026_090658.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 96,687 F1 · shares: Represents shares of restricted stock awarded to the Reporting Person by the Issuer on June 17, 2026, which vest on June 17, 2027. F2 · balance_after: Includes 1,241 shares of restricted stock that vest on June 17, 2027. Read SEC document |
| March 11, 2026 Filed Mar 12, 2026 21:34 UTC | Willdan Group, Inc. WLDN · Entity 4758 | GrantCommon Stock | 24,750 | $0.00 | $0.00 |
DisclosureSEC source: 0001395188-26-000002 · form4-03122026_090355.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 95,446 F1 · shares: Represents performance-based restricted stock units previously granted to the Reporting Person by the Issuer on March 7, 2023. The performance conditions applicable to the award were determined to have been satisfied by the Issuer's Compensation Committee effective on March 11, 2026, resulting in the immediate vesting of the restricted stock units as to 24,750 shares of Common Stock. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, and (ii) 1,124 shares of restricted stock that vest on June 12, 2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 25, 2025 Filed Aug 26, 2025 21:45 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionStock Options (Right to Buy) · Derivative | 5,182 | $0.00 Strike: $16.27 | $0.00 |
DisclosureSEC source: 0001415889-25-023045 · form4-08262025_090821.xml · derivative · entry 3 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 89,736 Underlying: Common Stock · 5,182 shares Expires 2026-11-03 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_date: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of November 3, 2017, November 3, 2018 and November 3, 2019. Read SEC document |
| August 25, 2025 Filed Aug 26, 2025 21:45 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 5,182 | $118.15 | $612,253.30 |
DisclosureSEC source: 0001415889-25-023045 · form4-08262025_090821.xml · nonDerivative · entry 2 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 70,696 F2 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $118.07 to $118.38, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2). F1 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7, 2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 25, 2025 Filed Aug 26, 2025 21:45 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionCommon Stock | 5,182 | $16.27 | $84,311.14 |
DisclosureSEC source: 0001415889-25-023045 · form4-08262025_090821.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 75,878 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7, 2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 22, 2025 Filed Aug 26, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 27,492 | $110.84 | $3,047,213.28 |
DisclosureSEC source: 0001415889-25-023043 · form4-08262025_090801.xml · nonDerivative · entry 7 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 70,696 F8 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $110.18 to $111.16, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 22, 2025 Filed Aug 26, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 33,096 | $109.39 | $3,620,371.44 |
DisclosureSEC source: 0001415889-25-023043 · form4-08262025_090801.xml · nonDerivative · entry 6 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 98,188 F7 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $109.16 to $110.13, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 22, 2025 Filed Aug 26, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 24,988 | $108.90 | $2,721,193.20 |
DisclosureSEC source: 0001415889-25-023043 · form4-08262025_090801.xml · nonDerivative · entry 5 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 131,284 F6 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $108.16 to $109.15, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 22, 2025 Filed Aug 26, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 8,974 | $107.65 | $966,051.10 |
DisclosureSEC source: 0001415889-25-023043 · form4-08262025_090801.xml · nonDerivative · entry 4 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 156,272 F5 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $107.16 to $108.13, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 22, 2025 Filed Aug 26, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 7,520 | $106.68 | $802,233.60 |
DisclosureSEC source: 0001415889-25-023043 · form4-08262025_090801.xml · nonDerivative · entry 3 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 165,246 F4 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $106.12 to $107.04, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 22, 2025 Filed Aug 26, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 4,910 | $105.36 | $517,317.60 |
DisclosureSEC source: 0001415889-25-023043 · form4-08262025_090801.xml · nonDerivative · entry 2 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 172,766 F3 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $105.1 to $106.01, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 22, 2025 Filed Aug 26, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 10,615 | $104.58 | $1,110,116.70 |
DisclosureSEC source: 0001415889-25-023043 · form4-08262025_090801.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 177,676 F1 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $104.06 to $105.01, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1), footnote (3), footnote (4), footnote (5), footnote (6), footnote (7) and footnote (8). F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 21, 2025 Filed Aug 25, 2025 21:38 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 100 | $106.34 | $10,634.00 |
DisclosureSEC source: 0001415889-25-022939 · form4-08252025_090850.xml · nonDerivative · entry 6 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 188,291 F7 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at $106.34. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7, 2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 21, 2025 Filed Aug 25, 2025 21:38 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 33,380 | $105.91 | $3,535,275.80 |
DisclosureSEC source: 0001415889-25-022939 · form4-08252025_090850.xml · nonDerivative · entry 5 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 188,391 F6 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $105.34 to $106.28, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7, 2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 21, 2025 Filed Aug 25, 2025 21:38 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 33,950 | $104.66 | $3,553,207.00 |
DisclosureSEC source: 0001415889-25-022939 · form4-08252025_090850.xml · nonDerivative · entry 4 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 221,771 F5 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $104.29 to $105.28, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7, 2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 21, 2025 Filed Aug 25, 2025 21:38 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 33,464 | $103.95 | $3,478,582.80 |
DisclosureSEC source: 0001415889-25-022939 · form4-08252025_090850.xml · nonDerivative · entry 3 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 255,721 F4 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $103.29 to $104.28, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7, 2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 21, 2025 Filed Aug 25, 2025 21:38 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 17,106 | $103.01 | $1,762,089.06 |
DisclosureSEC source: 0001415889-25-022939 · form4-08252025_090850.xml · nonDerivative · entry 2 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 289,185 F3 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $102.29 to $103.28, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7, 2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 21, 2025 Filed Aug 25, 2025 21:38 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 7,000 | $101.87 | $713,090.00 |
DisclosureSEC source: 0001415889-25-022939 · form4-08252025_090850.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 306,291 F1 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $101.24 to $102.22, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1), footnote (3), footnote (4), footnote (5), footnote (6), and footnote (7). F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7, 2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 20, 2025 Filed Aug 21, 2025 21:30 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 7,405 | $104.19 | $771,526.95 |
DisclosureSEC source: 0001415889-25-022636 · form4-08212025_090817.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 313,291 F1 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $104.00 to $104.51, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 18, 2025 Filed Aug 20, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionStock Options (Right to Buy) · Derivative | 5,082 | $0.00 Strike: $16.27 | $0.00 |
DisclosureSEC source: 0001415889-25-022512 · form4-08202025_090805.xml · derivative · entry 9 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 94,918 Underlying: Common Stock · 5,082 shares Expires 2026-11-03 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F9 · derivative.exercise_date: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of November 3, 2017, November 3, 2018 and November 3, 2019. Read SEC document |
| August 18, 2025 Filed Aug 20, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 7,206 | $111.21 | $801,379.26 |
DisclosureSEC source: 0001415889-25-022512 · form4-08202025_090805.xml · nonDerivative · entry 8 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 320,696 F8 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $111.00 to $111.44, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 18, 2025 Filed Aug 20, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 26,258 | $110.51 | $2,901,771.58 |
DisclosureSEC source: 0001415889-25-022512 · form4-08202025_090805.xml · nonDerivative · entry 7 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 327,902 F7 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $110.00 to $110.99, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 18, 2025 Filed Aug 20, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 58,303 | $109.51 | $6,384,761.53 |
DisclosureSEC source: 0001415889-25-022512 · form4-08202025_090805.xml · nonDerivative · entry 6 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 354,160 F6 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $109.00 to $109.99, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 18, 2025 Filed Aug 20, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 33,233 | $108.63 | $3,610,100.79 |
DisclosureSEC source: 0001415889-25-022512 · form4-08202025_090805.xml · nonDerivative · entry 5 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 412,463 F5 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $108.00 to $108.99, inclusive. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 18, 2025 Filed Aug 20, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 300 | $113.01 | $33,903.00 |
DisclosureSEC source: 0001415889-25-022512 · form4-08202025_090805.xml · nonDerivative · entry 4 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 445,696 F4 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at $113.01. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 18, 2025 Filed Aug 20, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 4,782 | $112.30 | $537,018.60 |
DisclosureSEC source: 0001415889-25-022512 · form4-08202025_090805.xml · nonDerivative · entry 3 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 445,996 F3 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $112.00 to $112.73, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3), footnote (4), footnote (5), footnote (6), footnote (7) and footnote (8). F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 18, 2025 Filed Aug 20, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionCommon Stock | 5,082 | $16.27 | $82,684.14 |
DisclosureSEC source: 0001415889-25-022512 · form4-08202025_090805.xml · nonDerivative · entry 2 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 450,778 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| August 18, 2025 Filed Aug 20, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | GrantCommon Stock | 21,461 | $0.00 | $0.00 |
DisclosureSEC source: 0001415889-25-022512 · form4-08202025_090805.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 445,696 F1 · shares: Represents performance-based restricted stock units previously granted to the Reporting Person by the Issuer on August 2, 2022. The performance conditions applicable to the award were determined to have been satisfied by the Issuer's Compensation Committee effective on August 18, 2025, resulting in the immediate vesting of the restricted stock units as to 21,461 shares of Common Stock. F2 · balance_after: Includes (i) 1,781 shares of restricted stock that vest on June 11, 2026, (ii) 1,124 shares of restricted stock that vest on June 12, 2026, and (iii) 5,834 shares of restricted stock that vest on March 7,2026, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. Read SEC document |
| June 11, 2025 Filed Jun 12, 2025 21:56 UTC | Willdan Group, Inc. WLDN · Entity 4758 | GrantCommon Stock | 1,781 | $0.00 | $0.00 |
DisclosureSEC source: 0001415889-25-017036 · form4-06122025_090613.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 424,235 F1 · shares: Represents shares of restricted stock awarded to the Reporting Person by the Issuer on June 11, 2025, which vest on June 11, 2026. F2 · balance_after: Includes (i) 2,248 shares of restricted stock that vest in two substantially equal installments on each of June 12, 2025 and June 12, 2026 and (ii) 5,834 shares of restricted stock that vest on March 7, 2026. Read SEC document |
| May 27, 2025 Filed May 29, 2025 21:31 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionStock Options (Right to Buy) · Derivative | 22,459 | $0.00 Strike: $13.91 | $0.00 |
DisclosureSEC source: 0001415889-25-014906 · form4-05292025_090505.xml · derivative · entry 3 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 22,459 shares Expires 2025-06-05 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of June 5, 2016, June 5, 2017, and June 5, 2018. Read SEC document |
| May 27, 2025 Filed May 29, 2025 21:31 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 22,459 | $52.34 | $1,175,504.06 |
DisclosureSEC source: 0001415889-25-014906 · form4-05292025_090505.xml · nonDerivative · entry 2 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 422,454 F1 · balance_after: Includes (i) 2,248 shares of restricted stock that vest in two substantially equal installments on each of June 12, 2025 and June 12, 2026 and (ii) 5,834 shares of restricted stock that vest on March 7, 2026. Read SEC document |
| May 27, 2025 Filed May 29, 2025 21:31 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionCommon Stock | 22,459 | $13.91 | $312,404.69 |
DisclosureSEC source: 0001415889-25-014906 · form4-05292025_090505.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 444,913 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · balance_after: Includes (i) 2,248 shares of restricted stock that vest in two substantially equal installments on each of June 12, 2025 and June 12, 2026 and (ii) 5,834 shares of restricted stock that vest on March 7, 2026. Read SEC document |
| May 23, 2025 Filed May 28, 2025 21:45 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionStock Options (Right to Buy) · Derivative | 1,626 | $0.00 Strike: $13.91 | $0.00 |
DisclosureSEC source: 0001415889-25-014748 · form4-05282025_090550.xml · derivative · entry 3 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,459 Underlying: Common Stock · 1,626 shares Expires 2025-06-05 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_date: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of June 5, 2016, June 5, 2017, and June 5, 2018. Read SEC document |
| May 23, 2025 Filed May 28, 2025 21:45 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 1,626 | $51.54 | $83,804.04 |
DisclosureSEC source: 0001415889-25-014748 · form4-05282025_090550.xml · nonDerivative · entry 2 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 422,454 F2 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $51.53 to $51.56, inclusive. The Reporting Person undertakes to provide to Willdan Group, Inc., any security holder of Willdan Group, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. F1 · balance_after: Includes (i) 2,248 shares of restricted stock that vest in two substantially equal installments on each of June 12, 2025 and June 12, 2026 and (ii) 5,834 shares of restricted stock that vest on March 7, 2026. Read SEC document |
| May 23, 2025 Filed May 28, 2025 21:45 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionCommon Stock | 1,626 | $13.91 | $22,617.66 |
DisclosureSEC source: 0001415889-25-014748 · form4-05282025_090550.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 424,080 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · balance_after: Includes (i) 2,248 shares of restricted stock that vest in two substantially equal installments on each of June 12, 2025 and June 12, 2026 and (ii) 5,834 shares of restricted stock that vest on March 7, 2026. Read SEC document |
| May 22, 2025 Filed May 27, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionStock Options (Right to Buy) · Derivative | 5,915 | $0.00 Strike: $13.91 | $0.00 |
DisclosureSEC source: 0001415889-25-014638 · form4-05272025_090513.xml · derivative · entry 3 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 24,085 Underlying: Common Stock · 5,915 shares Expires 2025-06-05 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of June 5, 2016, June 5, 2017, and June 5, 2018. Read SEC document |
| May 22, 2025 Filed May 27, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | SaleCommon Stock | 5,915 | $52.04 | $307,816.60 |
DisclosureSEC source: 0001415889-25-014638 · form4-05272025_090513.xml · nonDerivative · entry 2 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 422,454 F1 · balance_after: Includes (i) 2,248 shares of restricted stock that vest in two substantially equal installments on each of June 12, 2025 and June 12, 2026 and (ii) 5,834 shares of restricted stock that vest on March 7, 2026. Read SEC document |
| May 22, 2025 Filed May 27, 2025 21:39 UTC | Willdan Group, Inc. WLDN · Entity 4758 | Exercise / conversionCommon Stock | 5,915 | $13.91 | $82,277.65 |
DisclosureSEC source: 0001415889-25-014638 · form4-05272025_090513.xml · nonDerivative · entry 1 Brisbin Thomas Donald · CIK 0001395188 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 428,369 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · balance_after: Includes (i) 2,248 shares of restricted stock that vest in two substantially equal installments on each of June 12, 2025 and June 12, 2026 and (ii) 5,834 shares of restricted stock that vest on March 7, 2026. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.