FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

McLaughlin Stacy B.
2. Issuer Name and Ticker or Trading Symbol

Willdan Group, Inc. [ WLDN ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
Chief Financial Officer
(Last)          (First)          (Middle)

2401 EAST KATELLA AVENUE, SUITE 300
3. Date of Earliest Transaction (MM/DD/YYYY)

3/11/2021
(Street)

ANAHEIM, CA 92806
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 3/11/2021  S  191 (1)D$45.54 (2)20310 D  
Common Stock 3/11/2021  S  268 (1)D$46.51 (3)20042 D  
Common Stock 3/11/2021  S  361 (1)D$47.62 (4)19681 D  
Common Stock 3/12/2021  S  334 (1)D$46.47 (5)19347 D  
Common Stock 3/12/2021  S  193 (1)D$47.61 (6)19154 D  
Common Stock 3/12/2021  S  184 (1)D$48.59 (7)18970 D  
Common Stock 3/12/2021  S  106 (1)D$49.62 (8)18864 D  
Common Stock 3/12/2021  S  31 (1)D$50.55 (9)18833 D  
Common Stock 3/15/2021  S  1049 (1)D$46.37 (10)17784 D  
Common Stock 3/15/2021  S  92 (1)D$47.09 (11)17692 D  
Common Stock 3/16/2021  S  39 (1)D$45.97 17653 D  
Common Stock 3/19/2021  A  4816 (12)A$0 22469 D  

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares

Explanation of Responses:
(1) Represents shares of Common Stock sold in the open market, the proceeds of which were used to pay the tax withholding obligations incurred upon the vesting of performance-based restricted stock units on March 10, 2021.
(2) The price reported in Column 4 is the weig ed average price. These shares were sold in multiple transactions at prices ranging from $44.97 to $45.95, 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) through footnote (11).
(3) The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $46.00 to $46.99, inclusive.
(4) The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $47.05 to $47.89, inclusive.
(5) The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $45.91 to $46.87, inclusive.
(6) The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $47.05 to $47.97, inclusive.
(7) The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $48.12 to $49.00, inclusive.
(8) The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $49.23 to $50.20, inclusiv
(9) The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $50.28 to $50.76, inclusive.
(10) The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $45.84 to $46.67, inclusive.
(11) The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $46.84 to $47.80, inclusive.
(12) Represents performance-based restricted stock units previously granted to the Reporting Person by the Issuer on March 6, 2018. The performance conditions applicable to the award were determined to have been satisfied by the Issuer's Compensation Committee on March 19, 2021, resulting in the immediate vesting of the restricted stock units as to 4,816 shares of Common Stock.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
McLaughlin Stacy B.
2401 EAST KATELLA AVENUE
SUITE 300
ANAHEIM, CA 92806


Chief Financial Officer

Signatures
/s/ Stacy B. McLaughlin3/23/2021
**Signature of Reporting PersonDate

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