Form 8-K

8-K — Willdan Group, Inc.

Accession: 0001104659-26-092028

Filed: 2026-08-06

Period: 2026-08-06

CIK: 0001370450

SIC: 8711 (SERVICES-ENGINEERING SERVICES)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — wldn-20260806x8k.htm (Primary)

EX-99.1 (wldn-20260806xex99d1.htm)

GRAPHIC (wldn-20260806xex99d1001.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: wldn-20260806x8k.htm · Sequence: 1

WILLDAN GROUP, INC._August 6, 2026

0001370450false00013704502026-08-062026-08-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 6, 2026

WILLDAN GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware

001-33076

14-1951112

(State of other jurisdiction

of incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

2401 East Katella Avenue, Suite 300, Anaheim, California 92806

(Address of Principal Executive Offices)

Registrant’s telephone number, including area code: (800) 424-9144

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425).

☐

Soliciting material pursuant to Rule 14A-12 under the Exchange Act (17 CFR 240.14a-12)

☐

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR.14d-2(b))

☐

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock, par value $0.01 per share

WLDN

The Nasdaq Stock Market LLC

(Nasdaq Global Market)

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition

Willdan Group, Inc. (“Willdan”) issued a press release on August 6, 2026. The press release announced Willdan’s financial results for the second quarter ended July 3, 2026. A copy of the press release is attached as Exhibit 99.1 hereto and is hereby incorporated herein by reference in its entirety. The information in this Item 2.02 and the attached Exhibit 99.1 to this Current Report on Form 8-K is being furnished (not filed) pursuant to Item 2.02 of Form 8-K.

Item 9.01 Financial Statements and Exhibits

(d) Exhibits.

Exhibit No.

Document

99.1

Press Release of Willdan Group, Inc. dated August 6, 2026.

104

Cover Page Interactive Data File (embedded within the inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

WILLDAN GROUP, INC.

Date: August 6, 2026

By:

/s/ Creighton K. Early

Creighton K. Early

Chief Financial Officer and Executive Vice President

(Principal Financial Officer)

EX-99.1

Filename: wldn-20260806xex99d1.htm · Sequence: 2

Exhibit 99.1

Willdan Group Reports

Second Quarter Results

ANAHEIM, Calif. –August 6, 2026 – Willdan Group, Inc. (“Willdan”) (Nasdaq: WLDN) today announced its financial results for the second quarter ended July 3, 2026.

Second Quarter 2026 Highlightsa

● Contract revenue of $231.0 million, up 33.2%.

● Net revenueb of $117.2 million, up 23.5%.

● Net income of $24.3 million, up 57.7%.

● Adjusted EBITDAb of $33.0 million, up 50.6%.

● GAAP Diluted EPS of $1.58, up 53.4%.

● Adjusted Diluted EPSb of $2.07, up 38.0%.

The first half of fiscal 2026 had one fewer week than the first half of fiscal 2025, thus normalized results are also presented.

Six Months Year to Date 2026 Highlightsa

● Contract revenue of $386.1 million, up 18.5% (up 23.1% normalized).

● Net revenueb of $209.7 million, up 16.3% (up 20.8% normalized).

● Net income of $32.9 million, up 63.4% (up 69.7% normalized).

● Adjusted EBITDAb of $51.1 million, up 40.6% (up 46.0% normalized).

● GAAP Diluted EPS of $2.13, up 56.6%.

● Adjusted Diluted EPSb of $2.98, up 39.3%.

Executive Management Comments

“We delivered strong performance in the second quarter of 2026,” said Mike Bieber, Willdan's President and Chief Executive Officer. "Net revenue grew 23% year over year, including 18% organic growth, reflecting strong demand for our energy solutions. Margin expansion was driven by favorable business mix, operating leverage, and growth in our commercial business. We see compelling long-term opportunities from customers investing to meet growing electricity demand while improving grid reliability, resiliency, and affordability. Reflecting our strong performance and confidence in the opportunities ahead, we are raising our FY2026 financial targets.”

Fiscal Year 2026 Financial Targets

● Net Revenueb between $415 million and $430 million.

● Adjusted EBITDAb between $103 million and $107 million.

● Adjusted Diluted EPSb between $5.00 per share and $5.15 per share.

Assumes 15.9 million diluted shares, 0% effective tax rate, and no future acquisitions.

Long-Term Financial Goals

● Revenue and Net Revenue 15%-20% annual growth including acquisitions.

● Annual Adjusted EBITDA to Net Revenue margin in the high 20s%.

a. As compared to the same period of fiscal year 2025.

Normalized to reflect the 26-week first quarter of fiscal 2026 versus the 27-week first quarter of fiscal 2025.

b. See “Use of Non-GAAP Financial Measures” below.

Second Quarter 2026 Conference Call

Willdan will be hosting a conference call to discuss its second quarter financial results today, at 5:30 p.m. Eastern/2:30 p.m. Pacific. To access the call, listeners should dial 877-407-2988 (or 201-389-0923). The conference call will be webcast simultaneously on Willdan’s website at https://edge.media-server.com/mmc/p/qyujt8ei/.

A replay of the conference call will be available through Willdan’s website at https://ir.willdangroup.com/events-presentations.

About Willdan Group, Inc.

Willdan Group, Inc. is a technical services company focused on energy and infrastructure solutions. The Company’s solutions include energy planning and analytics, consulting, software, public finance, engineering, and program implementation. Willdan serves utilities, state and local governments, and commercial customers in the United States and Canada. For additional information, visit Willdan's website at www.willdan.com.

Use of Non-GAAP Financial Measures

“Net Revenue,” defined as contract revenue as reported in accordance with U.S. generally accepted accounting principles (“GAAP”) minus subcontractor services and other direct costs, is a non-GAAP financial measure. Net Revenue is a supplemental measure that Willdan believes enhances investors’ ability to analyze Willdan’s business trends and performance because it substantially measures the work performed by Willdan’s employees. In the course of providing services, Willdan routinely subcontracts various services. Generally, these subcontractor services and other direct costs are passed through to Willdan’s clients and, in accordance with GAAP and industry practice, are included in Willdan’s revenue when it is Willdan’s contractual responsibility to procure or manage such subcontracted activities. Because subcontractor services and other direct costs can vary significantly from project to project and period to period, changes in revenue may not necessarily be indicative of Willdan’s business trends. Accordingly, Willdan segregates subcontractor services and other direct costs from revenue to promote a better understanding of Willdan’s business by evaluating revenue exclusive of subcontract services and other direct costs associated with external service providers. A reconciliation of Willdan’s contract revenue as reported in accordance with GAAP to Net Revenue is provided at the end of this press release. A reconciliation of targeted contract revenue for fiscal year 2026 as reported in accordance with GAAP to targeted Net Revenues for fiscal year 2026, which is a forward-looking non-GAAP financial measure, is not provided because Willdan is unable to provide such reconciliation without unreasonable effort. The inability to provide a reconciliation is due to the uncertainty and inherent difficulty of predicting the subcontractor services and other director costs that are subtracted from contract revenues in order to derive Net Revenues. While subcontractor costs have increased recently, subcontractor costs can vary significantly from period to period. Subcontractor costs and other direct costs were 45.7% and 44.7% of contract revenue for the six months ended July 3, 2026 and July 4, 2025, respectively, and 46.5% of contract revenue for the fiscal year 2025.

“Adjusted EBITDA,” defined as net income plus interest expense, income tax expense, stock-based compensation, interest accretion, depreciation and amortization, transaction costs, and gain on sale of equipment, is a non-GAAP financial measure. Adjusted EBITDA is a supplemental measure used by Willdan’s management to measure Willdan’s operating performance. Willdan believes Adjusted EBITDA is useful because it allows Willdan’s management to evaluate its operating performance and compare the results of its operations from period to period and against its peers without regard to its financing methods, capital structure and non-operating expenses. Willdan uses Adjusted EBITDA to evaluate its performance for, among other things, budgeting, forecasting and incentive compensation purposes.

Certain items excluded from Adjusted EBITDA are significant components in understanding and assessing a company’s financial performance, such as a company’s costs of capital and stock-based compensation, as well as the historical costs of depreciable assets. A reconciliation of net income as reported in accordance with GAAP to Adjusted EBITDA is provided at the end of this press release. A reconciliation of targeted net income for fiscal year 2026 as reported in accordance with GAAP to Adjusted EBITDA for fiscal year 2026, which is a forward-looking non-GAAP financial measure, is not provided because Willdan is unable to provide such reconciliation without unreasonable effort. The inability to provide a reconciliation is due to the uncertainty and inherent difficulty of predicting the interest expense, income tax expense, stock-based compensation, interest accretion, depreciation and amortization, and gain on sale of equipment that are subtracted from net income in order to derive Adjusted EBITDA.

“Adjusted Net Income,” defined as net income plus stock-based compensation, intangible amortization, interest accretion, and transaction costs, each net of tax, is a non-GAAP financial measure.

“Adjusted Diluted EPS,” defined as net income plus stock-based compensation, intangible amortization, interest accretion, and transaction costs, each net of tax, all divided by the diluted weighted-average shares outstanding, is a non-GAAP financial measure. Adjusted Net Income and Adjusted Diluted EPS are supplemental measures used by Willdan’s management to measure its operating performance. Willdan believes Adjusted Net Income and Adjusted Diluted EPS are useful because they allow Willdan’s management to more closely evaluate and explain the operating results of Willdan’s business by removing certain non-operating expenses.

Reconciliations of net income as reported in accordance with GAAP to Adjusted Net Income and diluted EPS as reported in accordance with GAAP to Adjusted Diluted EPS are provided at the end of this press release. Reconciliations of targeted net income as reported in accordance with GAAP to targeted Adjusted Net Income for fiscal year 2026, which is a forward-looking non-GAAP financial measure, and targeted diluted EPS as reported in accordance with GAAP to targeted Adjusted Diluted EPS for fiscal year 2026, which is a forward-looking non-GAAP financial measure, are not provided because Willdan is unable to provide such reconciliations without unreasonable effort. The inability to provide such reconciliations is due to the uncertainty and inherent difficulty of predicting the stock-based compensation, intangible amortization, and interest accretion, each net of tax, that are subtracted from net income and diluted EPS in order to derive Adjusted Net Income and Adjusted Diluted EPS, respectively.

Willdan’s definitions of Net Revenue, Adjusted EBITDA, Adjusted Net Income and Adjusted Diluted EPS have limitations as analytical tools and may differ from other companies reporting similarly named measures or from similarly named measures Willdan has reported in prior periods. These measures should be considered in addition to, and not as a substitute for, or superior to, other measures of financial performance prepared in accordance with GAAP, such as contract revenue, net income and diluted EPS.

Forward Looking Statements

Statements in this press release that are not purely historical, including statements regarding Willdan’s intentions, hopes, beliefs, expectations, representations, projections, estimates, assumptions, aims, plans or predictions of the future are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, including statements regarding electricity demand, the expected benefits of the acquisition of Burton Energy Group, LLC., and financial targets for fiscal year 2026 and long term financial goals. All statements other than statements of historical fact included in this press release are forward-looking statements. It is important to note that Willdan’s actual results could differ materially from those in any such forward-looking statements. Important factors that could cause actual results to differ materially from its expectations include, but are not limited to, Willdan’s ability to adequately complete projects in a timely manner, Willdan’s ability to compete successfully in the highly competitive energy services market, Willdan’s reliance on work from its top ten clients; changes in state, local and regional economies and government budgets; Willdan’s ability to win new contracts, to renew existing contracts and to compete effectively for contracts awarded through bidding processes; Willdan’s ability to realize the full amount of our backlog; Willdan’s ability to make principal and interest payments on its outstanding debt as they come due and to comply with financial covenants contained in its debt agreements; Willdan’s ability to manage supply chain constraints, labor shortages, elevated interest rates, and elevated inflation; Willdan’s ability to obtain financing and to refinance its outstanding debt as it matures; Willdan’s ability to successfully integrate its acquisitions and execute on its growth strategy; and Willdan’s ability to attract and retain managerial, technical, and administrative talent.

All written and oral forward-looking statements attributable to Willdan, or persons acting on its behalf, are expressly qualified in their entirety by the cautionary statements and risk factors disclosed from time to time in Willdan’s reports filed with the Securities and Exchange Commission, including, but not limited to, the Annual Report on Form 10-K filed for the year ended January 2, 2026, as such disclosures may be amended, supplemented or superseded from time to time by other reports Willdan files with the Securities and Exchange Commission, including subsequent Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q or Current Reports on Form 8-K. Willdan cautions investors not to place undue reliance on the forward-looking statements contained in this press release. Willdan disclaims any obligation to, and does not undertake to, update or revise any forward-looking statements in this press release unless required by law.

WILLDAN GROUP, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except par value)

(Unaudited)

July 3,

January 2,

2026

Assets

Current assets:

Cash and cash equivalents

34,870

65,919

Restricted cash

4,349

—

Accounts receivable, net of allowance for doubtful accounts of $266 and $340 at July 3, 2026 and January 2, 2026, respectively

84,250

64,604

Contract assets

134,433

107,296

Other receivables

1,668

6,330

Prepaid expenses and other current assets

10,296

7,528

Total current assets

269,866

251,677

Equipment and leasehold improvements, net

29,595

31,491

Goodwill

212,169

179,530

Right-of-use assets

18,173

16,600

Other intangible assets, net

68,933

35,521

Other assets

1,891

2,762

Deferred income taxes, net

34,248

26,630

Total assets

634,875

544,211

Liabilities and Stockholders’ Equity

Current liabilities:

Accounts payable

62,916

45,628

Accrued liabilities

79,156

82,434

Contingent consideration payable

15,792

3,732

Contract liabilities

30,271

21,565

Notes payable

2,500

Finance lease obligations

1,102

1,225

Lease liability

4,927

4,670

Total current liabilities

196,664

161,754

Contingent consideration payable, less current portion

7,015

16,651

Notes payable, less current portion

64,745

45,962

Finance lease obligations, less current portion

935

1,162

Lease liability, less current portion

14,982

13,762

Other noncurrent liabilities

Total liabilities

284,410

239,360

Commitments and contingencies

Stockholders’ equity:

Preferred stock, $0.01 par value, 10,000 shares authorized, no shares issued and outstanding

—

Common stock, $0.01 par value, 40,000 shares authorized; 15,197 and 14,762 shares issued and outstanding at July 3, 2026 and January 2, 2026, respectively

152

148

Additional paid-in capital

227,805

215,269

Accumulated other comprehensive income (loss)

(71)

(270)

Retained earnings

122,579

89,704

Total stockholders’ equity

350,465

304,851

Total liabilities and stockholders’ equity

634,875

544,211

WILLDAN GROUP, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(in thousands, except per share amounts)

(Unaudited)

Three Months Ended

Six Months Ended

July 3,

July 4,

July 3,

July 4,

2026

2025

2026

2025

Contract revenue

231,028

173,473

386,142

325,859

Direct costs of contract revenue (inclusive of directly related depreciation and amortization):

Salaries and wages

29,788

26,643

59,064

54,320

Subcontractor services and other direct costs

113,786

78,505

176,468

145,553

Total direct costs of contract revenue

143,574

105,148

235,532

199,873

Gross profit

87,454

68,325

150,610

125,986

General and administrative expenses:

Salaries and wages, payroll taxes and employee benefits

40,467

32,576

73,468

63,684

Facilities and facility related

2,535

2,369

4,893

4,993

Stock-based compensation

4,811

3,182

8,503

5,608

Depreciation and amortization

6,971

5,504

12,417

9,944

Other

12,936

12,878

24,303

22,905

Total general and administrative expenses

67,720

56,509

123,584

107,134

Income (Loss) from operations

19,734

11,816

27,026

18,852

Other income (expense):

Interest expense, net

(1,086)

(2,186)

(1,921)

(3,988)

Other, net

439

551

1,234

510

Total other expense, net

(647)

(1,635)

(687)

(3,478)

Income (Loss) before income taxes

19,087

10,181

26,339

15,374

Income tax (benefit) expense

(5,258)

(5,255)

(6,536)

(4,749)

Net income (loss)

24,345

15,436

32,875

20,123

Other comprehensive income (loss):

Unrealized gain (loss) on derivative contracts, net of tax

188

199

Comprehensive income (loss)

24,425

15,624

33,074

20,126

Earnings (Loss) per share:

Basic

1.62

1.07

2.21

1.41

Diluted

1.58

1.03

2.13

1.36

Weighted-average shares outstanding:

Basic

15,043

14,444

14,891

14,298

Diluted

15,423

14,917

15,404

14,778

WILLDAN GROUP, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(Unaudited)

Six Months Ended

July 3,

July 4,

2026

2025

Cash flows from operating activities:

Net income (loss)

32,875

20,123

Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:

Depreciation and amortization

12,417

9,944

Other non-cash items

(218)

657

Deferred income taxes, net

(7,618)

(4,332)

(Gain) loss on sale/disposal of equipment

(43)

(23)

Provision for doubtful accounts

279

Stock-based compensation

8,503

5,608

Accretion and fair value adjustments of contingent consideration

1,828

1,254

Changes in operating assets and liabilities, net of effects from business acquisitions:

Accounts receivable

(12,143)

16,898

Contract assets

(27,117)

(18,062)

Other receivables

4,651

(2,346)

Prepaid expenses and other current assets

3,265

(1,376)

Other assets

895

(888)

Accounts payable

7,150

4,569

Accrued liabilities

(6,628)

(1,662)

Contract liabilities

1,862

(2,364)

Right-of-use assets

(189)

445

Net cash (used in) provided by operating activities

19,515

28,724

Cash flows from investing activities:

Purchase of equipment, software, and leasehold improvements

(3,671)

(4,517)

Proceeds from sale of equipment

Cash paid for acquisitions, net of cash acquired

(50,467)

(35,140)

Net cash (used in) provided by investing activities

(54,087)

(39,629)

Cash flows from financing activities:

Payments on contingent consideration

(8,807)

—

Receipt of restricted cash

7,242

—

Payment on restricted cash

(2,893)

—

Payments on notes payable

—

(137)

Payments on debt issuance costs

—

(332)

Payments made to retire prior credit agreement

—

(90,000)

Borrowing to fund new credit agreement

—

88,414

Borrowing under revolving credit facility

30,000

—

Payments under revolving credit facility

(10,000)

—

Principal payments on outstanding debt

(1,250)

(28,414)

Principal payments on finance leases

(885)

(737)

Proceeds from stock option exercise

1,593

1,909

Proceeds from sales of common stock under employee stock purchase plan

1,921

1,485

Cash used to pay taxes on stock grants

(9,049)

(3,093)

Net cash (used in) provided by financing activities

7,872

(30,905)

Net increase (decrease) in cash, cash equivalents and restricted cash

(26,700)

(41,810)

Cash, cash equivalents and restricted cash at beginning of period

65,919

74,158

Cash, cash equivalents and restricted cash at end of period

39,219

32,348

Supplemental disclosures of cash flow information:

Cash paid (received) during the period for:

Interest

2,032

3,915

Income taxes

1,265

2,471

Supplemental disclosures of noncash investing and financing activities:

Issuance of common stock related to business acquisitions

9,572

5,557

Contingent consideration related to business acquisitions

9,394

12,040

Other working capital adjustment

1,336

—

Equipment acquired under finance leases

535

855

Willdan Group, Inc. and Subsidiaries

Reconciliation of GAAP Revenue to Net Revenue

(in thousands)

(Non-GAAP Measure)

Three Months Ended

Six Months Ended

July 3,

July 4,

July 3,

July 4,

2026

2025

2026

2025

Consolidated

Contract revenue

231,028

173,473

386,142

325,859

Subcontractor services and other direct costs

113,786

78,505

176,468

145,553

Net Revenue

117,242

94,968

209,674

180,306

Energy segment

Contract revenue

202,589

146,749

330,557

272,997

Subcontractor services and other direct costs

111,411

76,794

172,399

142,874

Net Revenue

91,178

69,955

158,158

130,123

Engineering and Consulting segment

Contract revenue

28,439

26,724

55,585

52,862

Subcontractor services and other direct costs

2,375

1,711

4,069

2,679

Net Revenue

26,064

25,013

51,516

50,183

Willdan Group, Inc. and Subsidiaries

Reconciliation of GAAP Net Income to Adjusted EBITDA

(in thousands)

(Non-GAAP Measure)

Three Months Ended

Six Months Ended

July 3,

July 4,

July 3,

July 4,

2026

2025

2026

2025

Net income (loss)

24,345

15,436

32,875

20,123

Interest expense

1,086

2,186

1,921

3,988

Income tax expense (benefit)

(5,258)

(5,255)

(6,536)

(4,749)

Stock-based compensation

4,811

3,182

8,503

5,608

Interest accretion (1)

925

875

1,828

1,254

Depreciation and amortization

6,971

5,504

12,417

9,944

Transaction costs (2)

156

—

156

219

(Gain) Loss on sale of equipment

(21)

(6)

(43)

(23)

Adjusted EBITDA

33,015

21,922

51,121

36,364

(1) Interest accretion represents the imputed interest and fair value adjustments to estimated contingent consideration.

(2) Transaction costs represents acquisition and acquisition related costs.

Willdan Group, Inc. and Subsidiaries

Reconciliation of GAAP Net Income to Adjusted Net Income and Adjusted Diluted EPS

(in thousands, except per share amounts)

(Non-GAAP Measure)

Three Months Ended

Six Months Ended

July 3,

July 4,

July 3,

July 4,

2026

2025

2026

2025

Net income (loss)

24,345

15,436

32,875

20,123

Adjustment for stock-based compensation

4,811

3,182

8,503

5,608

Tax effect of stock-based compensation

(1,084)

(528)

(1,916)

(930)

Adjustment for intangible amortization

3,909

3,419

6,327

5,899

Tax effect of intangible amortization

(881)

(568)

(1,425)

(979)

Adjustment for interest accretion (1)

925

875

1,828

1,254

Tax effect of interest accretion (1)

(208)

(145)

(412)

(208)

Adjustment for refinancing costs

—

789

—

789

Tax effect of refinancing costs

—

(131)

—

(131)

Adjustment for transaction costs (2)

156

—

156

219

Tax effect of transaction costs (2)

(35)

—

(35)

(36)

Adjusted Net Income (Loss)

31,938

22,329

45,901

31,608

Diluted weighted-average shares outstanding

15,423

14,917

15,404

14,778

Diluted earnings (loss) per share

1.58

1.03

2.13

1.36

Impact of adjustment:

Stock-based compensation per share

0.31

0.21

0.55

0.38

Tax effect of stock-based compensation per share

(0.07)

(0.03)

(0.12)

(0.06)

Intangible amortization per share

0.25

0.23

0.41

0.40

Tax effect of intangible amortization per share

(0.06)

(0.03)

(0.09)

(0.06)

Interest accretion per share (1)

0.06

0.12

0.08

Tax effect of interest accretion per share (1)

(0.01)

(0.03)

(0.01)

Refinancing costs per share

—

0.05

—

0.05

Tax effect of refinancing cost per share

—

(0.01)

—

(0.01)

Transaction costs per share (2)

0.01

—

0.01

Tax effect of transaction costs per share (2)

—

Adjusted Diluted EPS

2.07

1.50

2.98

2.14

(1) Interest accretion represents the imputed interest and fair value adjustments to estimated contingent consideration.

(2) Transaction costs represents acquisition and acquisition related costs.

Contact:

Willdan Group, Inc.

Al Kaschalk

Vice President

Tel: 310-922-5643

akaschalk@willdan.com

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Document and Entity Information

Aug. 06, 2026

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