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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1370450	Willdan Group Inc.	WLDN	Services-Engineering Services (8711)	141951112

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1733678	Micah Chen	2401 East Katella Avenue Suite 300 Anaheim CA 92806	Executive Vp & General Counsel	No	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2025-05-19	10,000	$32.79	48,502	No	4	M	Direct
Common Stock	Disposition	2025-05-19	10,000	$50.50	38,502	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Options (Right to Buy)	Disposition	2025-05-19	10,000	$0.00	10,000	$32.79

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
50,000	2018-07-17	2027-07-17	No	4	M	Direct

Footnotes

Includes (i) 4,620 shares of restricted stock units that vest in three substantially equal installments on each of March 17, 2026, March 17, 2027 and March 17, 2028, (ii) 2,800 shares of restricted stock units that vest in two substantially equal installments on each of March 20, 2026 and March 20, 2027 and (iii) 934 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.
Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of July 17, 2018, July 17, 2019, and July 17, 2020.