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Willdan Group (WLDN) CEO sells 9,991 shares at $92.65 after exercising options

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Willdan Group, Inc. President and CEO Michael A. Bieber exercised stock options and sold the resulting shares in a same‑day transaction. He exercised options for 9,991 shares of common stock at $16.27 per share, then sold 9,991 shares at a weighted average of $92.65 per share, with individual sale prices ranging from $92.50 to $92.85. After these transactions, he directly holds 249,525 shares of common stock and 40,009 stock options. His position also includes restricted stock units covering 18,000, 12,834, and 5,834 shares that vest in installments between 2027 and 2029, subject to continued service.

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Insider BIEBER MICHAEL A
Role PRESIDENT AND CEO
Sold 9,991 shs ($926K)
Type Security Shares Price Value
Exercise Stock Options (Right to Buy) 9,991 $0.00 --
Exercise Common Stock 9,991 $16.27 $163K
Sale Common Stock 9,991 $92.65 $926K
Holdings After Transaction: Stock Options (Right to Buy) — 40,009 shares (Direct, null); Common Stock — 259,516 shares (Direct, null)
Footnotes (1)
  1. Includes (i) 18,000 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) 12,834 shares of restricted stock units that vest in two substantially equal installments on each of March 17, 2027 and March 17, 2028, and (iii) 5,834 shares of restricted stock units that vest on March 20, 2027, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date. The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $92.50 to $92.85, 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. 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.
Shares sold 9,991 shares Common stock sold in open-market transactions on May 13, 2026
Weighted average sale price $92.65 per share Common stock sale price range $92.50–$92.85
Option exercise price $16.27 per share Stock options exercised for 9,991 shares of common stock
Shares held after transaction 249,525 shares Common stock directly owned by CEO after reported trades
Options remaining 40,009 options Stock options held after exercising 9,991 options
RSUs vesting 2027–2029 18,000 shares Restricted stock units vesting in three installments on Mar 3, 2027–2029
RSUs vesting 2027–2028 12,834 shares Restricted stock units vesting in two installments on Mar 17, 2027–2028
Single-tranche RSUs 5,834 shares Restricted stock units vesting on Mar 20, 2027
restricted stock units financial
"Includes (i) 18,000 shares of restricted stock units that vest in three substantially equal installments"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
weighted average price financial
"The price reported in Column 4 is the weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
derivative security financial
"transaction_action": "derivative exercise/conversion","transaction_code_description": "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
Performance Incentive Plan financial
"Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan"
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
BIEBER MICHAEL A
(Last)(First)(Middle)
2401 EAST KATELLA AVENUE
SUITE 300
(Street)
ANAHEIM CALIFORNIA 92806
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Willdan Group, Inc. [ WLDN ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
PRESIDENT AND CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction 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)
CodeVAmount(A) or (D)Price
Common Stock05/13/2026M9,991A$16.27259,516(1)D
Common Stock05/13/2026S9,991D$92.65(2)249,525(1)D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. 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: 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
Stock Options (Right to Buy)$16.2705/13/2026M9,99111/03/2017(3)11/03/2026Common Stock50,000$040,009D
Explanation of Responses:
1. Includes (i) 18,000 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) 12,834 shares of restricted stock units that vest in two substantially equal installments on each of March 17, 2027 and March 17, 2028, and (iii) 5,834 shares of restricted stock units that vest on March 20, 2027, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date.
2. The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $92.50 to $92.85, 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.
3. 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.
/s/ Creighton K. Early, Attorney-in-fact for Michael A. Bieber05/14/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What did Willdan Group (WLDN) CEO Michael A. Bieber do in this Form 4?

Michael A. Bieber exercised stock options and sold the resulting shares. He exercised options for 9,991 shares at $16.27 each, then sold 9,991 shares at a weighted average price of $92.65 per share in multiple transactions.

How many Willdan Group (WLDN) shares did the CEO sell and at what price?

He sold 9,991 shares of common stock at a weighted average price of $92.65 per share. Individual trades occurred between $92.50 and $92.85, according to the disclosed pricing range in the Form 4 footnote.

What stock options did the Willdan Group (WLDN) CEO exercise?

He exercised stock options covering 9,991 shares of common stock at an exercise price of $16.27 per share. These options were granted under the Amended and Restated 2008 Performance Incentive Plan and vested in three equal installments from 2017 to 2019.

How many Willdan Group (WLDN) shares does the CEO hold after these transactions?

Following the reported transactions, Michael A. Bieber directly holds 249,525 shares of Willdan Group common stock. He also retains 40,009 stock options and has additional restricted stock units scheduled to vest over several years, subject to his continued service.

What unvested equity awards does the Willdan Group (WLDN) CEO still have?

His position includes restricted stock units for 18,000 shares vesting in three installments in 2027, 2028, and 2029; 12,834 shares vesting in two installments in 2027 and 2028; and 5,834 shares vesting in 2027.

Were the Willdan Group (WLDN) CEO’s sale prices fixed or in a range?

The sale prices were reported as a weighted average of $92.65 per share. The Form 4 notes that individual trades occurred in multiple transactions at prices ranging from $92.50 to $92.85 per share, inclusive.