Form 4 for WLDN Willdan Group, Inc.

Accepted 2026-03-05 00:00:00 ET · period of report 2026-03-03 · accession 0000904702-26-000002 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
	2026-03-05	2026-03-03	WLDN	EARLY CREIGHTON K	EXECUTIVE VP AND CFO	A - Grant	$0.00	+5,625	79.5K	+8%	$0

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-03-03	A	A	5,625	$0.00	79,482	D	—	—	(F1) Represents shares of restricted stock units awarded to the Reporting Person by the Issuer on March 3, 2026, which vest in three substantially equal installments on each of March 3, 2027, March 3, 2028 and March 3, 2029, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. (F2) Includes (i) 5,625 shares of restricted stock units that vest in three substantially equal installments on each of March 3, 2027, March 3, 2028 and March 3, 2029, (ii) 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, (iii) 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 (iv) 7,600 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. (F3) Includes 176 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan on December 31, 2025.