Form 8-K

8-K — DUCOMMUN INC /DE/

Accession: 0001628280-26-033833

Filed: 2026-05-12

Period: 2026-05-12

CIK: 0000030305

SIC: 3728 (AIRCRAFT PART & AUXILIARY EQUIPMENT, NEC)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — dco-20260512.htm (Primary)

EX-99.1 (dcoex99_1q12026earningsrel.htm)

GRAPHIC (dcohqcostamesaletterhead_1a.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: dco-20260512.htm · Sequence: 1

dco-20260512

0000030305FALSE600 Anton Boulevard, Suite 1100Costa MesaCalifornia00000303052026-05-122026-05-12

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 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): May 12, 2026

____________________________

DUCOMMUN INCORPORATED

(Exact name of registrant as specified in its charter)

____________________________

Delaware 001-08174 95-0693330

(State or other jurisdiction

of incorporation) (Commission

File Number) (IRS Employer

Identification No.)

600 Anton Boulevard, Suite 1100 , Costa Mesa, California

92626-7100

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code (657) 335-3665

N/A

(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 240.14d-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, $.01 par value per share DCO New York Stock Exchange

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

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.

Ducommun Incorporated issued a press release on May 12, 2026 in the form attached hereto as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No. Exhibit Title or Description

99.1

Ducommun Incorporated press release issued on May 12, 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.

DUCOMMUN INCORPORATED

(Registrant)

Date: May 12, 2026 By: /s/ Suman B. Mookerji

Suman B. Mookerji

Senior Vice President, Chief Financial Officer

EX-99.1

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Document

EXHIBIT 99.1

NEWS RELEASE

Ducommun Incorporated Reports

First Quarter 2026 Results

New Record for Q1 Revenue, Strong Gross Margins and Net Income

COSTA MESA, CALIFORNIA (May 12, 2026) – Ducommun Incorporated (NYSE: DCO) (“Ducommun” or the “Company”) today reported results for its first quarter ended April 4, 2026.

First Quarter 2026 Recap

•Net Revenue was $209.0 million, an increase of 9% over Q1 2025*

•Gross margin of 26.9%, year-over-year growth of 70 bps

•Net income of $9.9 million (increase of 607% year-over-year) or $0.64 per diluted share, and 4.7% of revenue, up 400 bps year-over-year

•Non-GAAP adjusted net income of $11.7 million (increase of 232% year-over-year), or $0.75 per diluted share

•Adjusted EBITDA of $35.4 million (increase of 19% year-over-year), or 16.9% of revenue, up 150 bps year-over-year

“An excellent quarter and strong start to 2026 for Ducommun. Our team continued to make great progress towards our VISION 2027 goals with another record for revenue during the first quarter along with strong gross margin and Adjusted EBITDA margins. Net revenue grew a very healthy 9%, led by strength in commercial aerospace which we have been waiting for, along with gains in our defense business,” said Stephen G. Oswald, chairman, president and chief executive officer. “Significant growth in single-aisle demand for Airbus A220, A320, and Boeing 737 MAX along with commercial rotorcraft resulted in 18% year-over-year growth in our commercial aerospace business which was a very nice rebound. Ducommun’s defense business saw growth yet again with our missile franchise specifically the Patriot missile platform being a highlight along with good growth on fixed-wing aircraft platforms including the F35 and the F-15.

“The Company continues to make solid progress as well with its margin expansion journey started back in 2023 with gross margins expanding 70 bps year-over-year to 26.9%. Adjusted EBITDA exceeded $30 million for the fourth consecutive quarter, expanding 150 bps year-over-year from 15.4% to 16.9% and keeping us on a good pace to meet the VISION 2027 financial goal of 18% Adjusted EBITDA and with seven quarters remaining, we have high confidence.

“I also look at the Q1 results as a very healthy start to the fourth year of our VISION 2027 plan, especially in commercial aerospace. While we expect to see some destocking headwinds in the remaining quarters of 2026, the outlook is very promising, especially in 2027 and 2028. Ducommun’s strong missile franchise should also continue to gather momentum throughout the year as we are well positioned to benefit from the Department of War's long-term 7 year framework agreements for key missile programs with defense primes including RTX, our largest customer and Lockheed Martin.”

First Quarter Results

Net revenue for the first quarter of 2026 was $209.0 million compared to $192.5 million for the first quarter of 2025. The year-over-year increase was primarily due to the following in the Company's key end-use markets:

•$12.5 million higher revenue in the Company’s commercial aerospace end-use markets due to higher rates on large aircraft and rotary-wing aircraft platforms; and

•$5.4 million higher revenue in the Company’s military and space end-use markets due to higher rates on selected fixed-wing aircraft and missiles platforms, partially offset by lower rates on electronic warfare, ground vehicle weapons, and radar platforms.

In addition, revenue for the Company’s industrial end-use markets for the first quarter of 2026 decreased $1.4 million compared to the first quarter of 2025 mainly due to timing of orders.

Net income for the first quarter of 2026 was $9.9 million, or 4.7% of revenue, or $0.64 per diluted share, compared to net income of $1.4 million, or 0.7% revenue, or $0.09 per diluted share, for the first quarter of 2025. This reflects higher gross profit of $5.8 million and lower stock-based compensation expense of $4.3 million, partially offset by higher income tax expense of $1.5 million.

Gross profit for the first quarter of 2026 was $56.2 million, or 26.9% of revenue, compared to gross profit of $50.5 million, or 26.2% of revenue, for the first quarter of 2025. The increase in gross profit as a percentage of net revenue year-over-year was primarily due to lower other manufacturing costs, favorable product mix, and higher manufacturing volume.

Operating income for the first quarter of 2026 was $15.7 million, or 7.5% of revenue, compared to operating income of $5.0 million, or 2.6% of revenue, in the comparable period last year. The year-over-year increase of $10.7 million was primarily due to higher gross profit and lower selling, general and administrative expenses. Non-GAAP adjusted operating income for the first quarter of 2026 was $18.0 million, or 8.6% of revenue, compared to $7.6 million, or 4.0% of revenue, in the comparable period last year.

Adjusted EBITDA for the first quarter of 2026 was $35.4 million, or 16.9% of revenue, compared to $29.7 million, or 15.4% of revenue, for the comparable period in 2025.

Interest expense for the first quarter of 2026 was $4.0 million compared to $3.3 million in the comparable period of 2025. The year-over-year increase was primarily due to a higher debt balance, partially offset by lower interest rates.

During the first quarter of 2026, the net cash provided by operations was $11.2 million compared to $0.8 million during the first quarter of 2025. The higher net cash provided by operations during the first quarter of 2026 was primarily due to higher net income and higher contract liabilities, partially offset by lower accrued and other liabilities.

* As restated in the Company's Form 10-K/A filed with the Securities and Exchange Commission on May 8, 2026.

Business Segment Information

Electronic Systems

Electronic Systems segment net revenue for the quarter ended April 4, 2026 was $117.6 million, compared to $109.1 million for the first quarter of 2025. The year-over-year increase was primarily due to the following in the Company's key end-use markets:

•$5.3 million higher revenue within the Company’s military and space end-use markets due to higher rates on selected fixed-wing aircraft and missile platforms, partially offset by lower rates on electronic warfare and radar platforms; and

•$4.6 million higher revenue in the Company’s commercial aerospace end-use markets due to higher rates on other commercial aerospace and large aircraft platforms.

In addition, revenue for the Company’s industrial end-use markets for the first quarter of 2026 decreased $1.4 million compared to the first quarter of 2025 mainly due timing of orders.

Electronic Systems segment operating income for the quarter ended April 4, 2026 was $22.9 million, or 19.5% of revenue, compared to $17.5 million, or 16.0% of revenue, for the comparable quarter in 2025. The year-over-year increase of $5.5 million was primarily due to favorable product mix, higher manufacturing volume, and lower other manufacturing costs. Non-GAAP adjusted operating income for the first quarter of 2026 was $23.3 million, or 19.8% of revenue, compared to $17.9 million, or 16.4% of revenue, in the comparable period last year.

Structural Systems

Structural Systems segment net revenue for the quarter ended April 4, 2026 was $91.4 million, compared to $83.4 million for the first quarter of 2025. The year-over-year increase was primarily due to the following:

•$7.9 million higher revenue within the Company’s commercial aerospace end-use markets due to higher rates on large aircraft and rotary-wing aircraft platforms; and

•$0.1 million higher revenue within the Company’s military and space end-use markets due to higher rates on selected missile platforms, partially offset by lower rates on selected rotary-wing aircraft platforms.

Structural Systems segment operating income for the quarter ended April 4, 2026 was $10.4 million, or 11.4% of revenue, compared to $9.9 million, or 11.9% of revenue, for the comparable quarter in 2025. The year-over-year increase of $0.5 million was primarily due to lower other manufacturing costs, partially offset by unfavorable product mix. Non-GAAP adjusted operating income for the first quarter of 2026 was $12.3 million, or 13.4% of revenue, compared to $12.1 million, or 14.5% of revenue, in the comparable period last year.

Corporate General and Administrative (“CG&A”) Expenses

CG&A expenses for the first quarter of 2026 were $17.6 million, or 8.4% of total Company revenue, compared to $22.4 million, or 11.6% of total Company revenue, for the comparable quarter in the prior year. The year-over-year decrease in CG&A expenses was primarily due to lower stock-based compensation expense of $4.2 million.

Conference Call

A teleconference hosted by Stephen G. Oswald, the Company’s chairman, president and chief executive officer, and Suman B. Mookerji, the Company’s senior vice president, chief financial officer will be held today, May 12, 2026 at 10:00 a.m. PT (1:00 p.m. ET) to review these financial results. To access the conference call, please pre-register using the following registration link:

https://register-conf.media-server.com/register/BIbeade6204d8e441398e3b1d1ede413a8

Registrants will receive a confirmation with dial-in details. Mr. Oswald and Mr. Mookerji will be speaking on behalf of the Company and anticipate the call (including Q&A) to last approximately 45 minutes. A live webcast of the event can be accessed using the link above. A replay of the webcast will be available on the Ducommun website at Ducommun.com.

Additional information regarding Ducommun's results can be found in the Q1 2026 Earnings Presentation available at Ducommun.com.

About Ducommun Incorporated

Ducommun Incorporated delivers value-added innovative manufacturing solutions to customers in the aerospace, defense and industrial markets. Founded in 1849, the Company specializes in two core areas - Electronic Systems and Structural Systems - to produce complex products and components for commercial aircraft platforms, mission-critical military and space programs, and sophisticated industrial applications. For more information, visit Ducommun.com.

Forward Looking Statements

This press release and any attachments include “forward-looking statements,” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, in particular, expectations relating to the Company's VISION 2027 Strategy and its progress towards the financial goals stated therein, potential destocking headwinds related to the Company's commercial aerospace business and outlook for the remaining quarters of 2026 and through 2028, and expectations related to the U.S. Department of War's long-term framework agreements for key missile programs with defense primes. The Company generally uses the words “may,” “will,” “could,” “expect,” “anticipate,” “believe,” “estimate,” “plan,” “intend,” “continue” and similar expressions in this press release and any attachments to identify forward-looking statements. The Company bases these forward-looking statements on its current views with respect to future events and financial performance. Actual results could differ materially from those projected in the forward-looking statements. These forward-looking statements are subject to risks, uncertainties and assumptions, including, among other things: the cyclicality of our end-use markets, the level of U.S. government defense spending, our customers may experience changes in production rates or delays in the launch and certification of new products, timing of orders from our

customers which are subject to cancellation, modification or rescheduling, our ability to obtain additional financing and service existing debt to fund capital expenditures and meet our working capital needs, legal and regulatory risks, including pending litigation matters generally and as well as any potential losses arising from third party subrogation claims related to the Guaymas performance center fire that may become material, the cost of expansion, consolidation and acquisitions, competition, economic and geopolitical developments – including supply chain issues, our ability to successfully implement restructuring, realignment and cost reduction activities that could adversely impact our ability to achieve our strategic objectives, international trade restrictions and our ability to obtain necessary U.S. government approvals for proposed sales to certain foreign customers, the impact of tariffs and elevated interest rates, risks associated with a prolonged partial or total U.S. federal government shutdown, the ability to attract and retain key personnel and avoid labor disruptions, the ability to adequately protect and enforce intellectual property rights, pandemics, disasters – natural or otherwise, and risk of cybersecurity attacks, and other risks and uncertainties, including those detailed from time to time in the Company’s periodic reports filed with the Securities and Exchange Commission. You should not put undue reliance on any forward-looking statements. You should understand that many important factors, including those discussed herein, could cause the Company’s results to differ materially from those expressed or suggested in any forward-looking statement. Except as required by law, the Company does not undertake any obligation to update or revise these forward-looking statements to reflect new information or events or circumstances that occur after the date of this news release, May 12, 2026, or to reflect the occurrence of unanticipated events or otherwise. Readers are advised to review the Company’s filings with the Securities and Exchange Commission (which are available from the SEC’s EDGAR database at www.sec.gov).

Note Regarding Non-GAAP Financial Information

This release contains non-GAAP financial measures, including Adjusted EBITDA (which excludes interest expense, income tax expense, depreciation, amortization, stock-based compensation expense, and restructuring charges), including as a percentage of revenue, non-GAAP operating income, including as a percentage of net revenues, non-GAAP net income, and non-GAAP earnings per share. In addition, certain other prior period amounts have been reclassified to conform to current year’s presentation.

The Company believes the presentation of these non-GAAP measures provide important supplemental information to management and investors regarding financial and business trends relating to its financial condition and results of operations. The Company’s management uses these non-GAAP financial measures along with the most directly comparable GAAP financial measures in evaluating the Company’s actual and forecasted operating performance, capital resources and cash flow. The non-GAAP financial information presented herein should be considered supplemental to, and not as a substitute for, or superior to, financial measures calculated in accordance with GAAP. The Company discloses different non-GAAP financial measures in order to provide greater transparency and to help the Company’s investors to more meaningfully evaluate and compare Ducommun’s results to its previously reported results. The non-GAAP financial measures that the Company uses may not be comparable to similarly titled financial measures used by other companies.

CONTACT:

Suman Mookerji, Senior Vice President, Chief Financial Officer, 657.335.3665

[Financial Tables Follow]

DUCOMMUN INCORPORATED AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

(Dollars in thousands)

April 4,

2026 December 31,

2025

Assets

Current Assets

Cash and cash equivalents $ 39,103 $ 45,289

Accounts receivable, net 137,027 124,442

Contract assets 249,229 249,845

Inventories 186,269 182,788

Production cost of contracts 5,914 7,178

Other current assets 16,314 16,442

Total Current Assets 633,856 625,984

Property and Equipment, Net 105,755 107,223

Operating Lease Right-of-Use Assets 37,888 40,077

Goodwill 244,600 244,600

Intangibles, Net 128,656 132,839

Deferred income taxes 14,180 15,500

Other Assets 20,398 20,192

Total Assets $ 1,185,333 $ 1,186,415

Liabilities and Shareholders’ Equity

Current Liabilities

Accounts payable $ 79,961 $ 74,653

Contract liabilities 52,473 40,694

Accrued and other liabilities 28,112 51,071

Operating lease liabilities 7,005 7,817

Current portion of long-term debt 5,000 5,000

Total Current Liabilities 172,551 179,235

Long-Term Debt, Less Current Portion 297,608 298,790

Non-Current Operating Lease Liabilities 33,091 34,223

Other Long-Term Liabilities 12,287 12,686

Total Liabilities 515,537 524,934

Commitments and Contingencies

Shareholders’ Equity

Common Stock 151 149

Additional Paid-In Capital 246,378 248,482

Retained Earnings 416,220 406,304

Accumulated Other Comprehensive Income 7,047 6,546

Total Shareholders’ Equity 669,796 661,481

Total Liabilities and Shareholders’ Equity $ 1,185,333 $ 1,186,415

DUCOMMUN INCORPORATED AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

(Dollars in thousands, except per share amounts)

Three Months Ended

April 4,

2026 March 29,

2025

Net Revenues $ 209,022 $ 192,481

Cost of Sales 152,789 142,030

Gross Profit 56,233 50,451

Selling, General and Administrative Expenses 40,513 45,050

Restructuring Charges — 426

Operating Income 15,720 4,975

Interest Expense (4,010) (3,263)

Income Before Taxes 11,710 1,712

Income Tax Expense 1,794 310

Net Income $ 9,916 $ 1,402

Earnings Per Share

Basic earnings per share $ 0.66 $ 0.09

Diluted earnings per share $ 0.64 $ 0.09

Weighted-Average Number of Common Shares Outstanding

Basic 15,044 14,856

Diluted 15,599 15,177

Gross Profit % 26.9 % 26.2 %

SG&A % 19.4 % 23.4 %

Operating Income % 7.5 % 2.6 %

Net Income % 4.7 % 0.7 %

Effective Tax Rate 15.3 % 18.1 %

DUCOMMUN INCORPORATED AND SUBSIDIARIES

GAAP TO NON-GAAP NET INCOME TO ADJUSTED EBITDA RECONCILIATION

(Unaudited)

(Dollars in thousands)

Three Months Ended

April 4,

2026 March 29,

2025

GAAP net income $ 9,916 $ 1,402

Non-GAAP Adjustments:

Interest expense 4,010 3,263

Income tax expense 1,794 310

Depreciation 3,943 4,277

Amortization 4,295 4,307

Stock-based compensation expense (1)

11,419 15,734

Restructuring charges — 426

Adjusted EBITDA $ 35,377 $ 29,719

Net income as a % of net revenues 4.7 % 0.7 %

Adjusted EBITDA as a % of net revenues 16.9 % 15.4 %

(1) The three months ended April 4, 2026 and March 29, 2025 included $0.3 million and $0.6 million, respectively, of stock-based compensation expense for awards with both performance and market conditions that will be settled in cash. The three months ended April 4, 2026 and March 29, 2025 included $0.1 million and less than $0.1 million, respectively, of stock-based compensation expense recorded as cost of sales.

DUCOMMUN INCORPORATED AND SUBSIDIARIES

BUSINESS SEGMENT PERFORMANCE

(Unaudited)

(Dollars in thousands)

Three Months Ended

Change April 4,

2026 March 29,

2025 %

of Net Revenues

2026 %

of Net Revenues

2025

Net Revenues

Electronic Systems 7.8 % $ 117,590 $ 109,065 56.3 % 56.7 %

Structural Systems 9.6 % 91,432 83,416 43.7 % 43.3 %

Total Net Revenues 8.6 % $ 209,022 $ 192,481 100.0 % 100.0 %

Segment Operating Income

Electronic Systems $ 22,924 $ 17,450 19.5 % 16.0 %

Structural Systems 10,438 9,919 11.4 % 11.9 %

33,362 27,369

Corporate General and Administrative Expenses (1)

(17,642) (22,394) (8.4) % (11.6) %

Total Operating Income $ 15,720 $ 4,975 7.5 % 2.6 %

Adjusted EBITDA

Electronic Systems

Operating Income

$ 22,924 $ 17,450

Depreciation and Amortization 3,584 3,566

Stock-Based Compensation Expense (2)

102 77

Restructuring Charges — 90

26,610 21,183 22.6 % 19.4 %

Structural Systems

Operating Income

10,438 9,919

Depreciation and Amortization 4,559 4,916

Stock-Based Compensation Expense (3)

82 179

Restructuring Charges — 336

15,079 15,350 16.5 % 18.4 %

Corporate General and Administrative Expenses (1)

Operating loss

(17,642) (22,394)

Depreciation and Amortization 95 102

Stock-Based Compensation Expense (4)

11,235 15,478

(6,312) (6,814)

Adjusted EBITDA

$ 35,377 $ 29,719 16.9 % 15.4 %

Capital Expenditures

Electronic Systems $ 886 $ 2,265

Structural Systems 1,475 2,114

Corporate Administration 219 13

Total Capital Expenditures $ 2,580 $ 4,392

(1)Includes costs not allocated to either the Electronic Systems or Structural Systems operating segments.

(2)The three months ended April 4, 2026 and March 29, 2025 each included less than $0.1 million of stock-based compensation expense recorded as cost of sales.

(3)The three months ended April 4, 2026 and March 29, 2025 included less than $0.1 million and $0.2 million, respectively, of stock-based compensation expense recorded as cost of sales.

(4)The three months ended April 4, 2026 and March 29, 2025 included $0.3 million and $0.6 million, respectively, of stock-based compensation expense for awards with both performance and market conditions that will be settled in cash.

DUCOMMUN INCORPORATED AND SUBSIDIARIES

GAAP TO NON-GAAP OPERATING INCOME RECONCILIATION

(Unaudited)

(Dollars in thousands)

Three Months Ended

GAAP To Non-GAAP Operating Income April 4, 2026 March 29, 2025 %

of Net Revenues

2026 %

of Net Revenues

2025

GAAP operating income

$ 15,720 $ 4,975

GAAP operating income - Electronic Systems $ 22,924 $ 17,450

Adjustments to GAAP operating income - Electronic Systems:

Restructuring charges — 90

Amortization of acquisition-related intangible assets 373 373

Total adjustments to GAAP operating income - Electronic Systems 373 463

Non-GAAP adjusted operating income - Electronic Systems 23,297 17,913 19.8 % 16.4 %

GAAP operating income - Structural Systems 10,438 9,919

Adjustments to GAAP operating income - Structural Systems:

Restructuring charges — 336

Amortization of acquisition-related intangible assets 1,859 1,859

Total adjustments to GAAP operating income - Structural Systems 1,859 2,195

Non-GAAP adjusted operating income - Structural Systems 12,297 12,114 13.4 % 14.5 %

GAAP operating loss - Corporate

(17,642) (22,394)

Adjustments to GAAP Operating Income - Corporate

Total adjustments to GAAP Operating Income - Corporate — —

Non-GAAP adjusted operating loss - Corporate

(17,642) (22,394)

Total non-GAAP adjustments to GAAP operating income

2,232 2,658

Non-GAAP adjusted operating income

$ 17,952 $ 7,633 8.6 % 4.0 %

DUCOMMUN INCORPORATED AND SUBSIDIARIES

GAAP TO NON-GAAP NET INCOME AND EARNINGS PER SHARE RECONCILIATION

(Unaudited)

(Dollars in thousands, except per share amounts)

Three Months Ended

GAAP To Non-GAAP Net Income April 4,

2026 March 29,

2025

GAAP net income $ 9,916 $ 1,402

Adjustments to GAAP net income:

Restructuring charges — 426

Amortization of acquisition-related intangible assets 2,232 2,232

Total adjustments to GAAP net income before provision for income taxes 2,232 2,658

Income tax effect on non-GAAP adjustments (1)

(446) (532)

Non-GAAP adjusted net income $ 11,702 $ 3,528

Three Months Ended

GAAP Earnings Per Share To Non-GAAP Earnings Per Share April 4,

2026 March 29,

2025

GAAP diluted (loss) earnings per share (“EPS”) $ 0.64 $ 0.09

Adjustments to GAAP diluted EPS:

Restructuring charges — 0.03

Amortization of acquisition-related intangible assets 0.14 0.15

Total adjustments to GAAP diluted EPS before provision for income taxes 0.14 0.18

Income tax effect on non-GAAP adjustments (1)

(0.03) (0.04)

Non-GAAP adjusted diluted EPS $ 0.75 $ 0.23

GAAP weighted-average shares - basic 15,044 14,856

GAAP weighted-average shares - diluted 15,599 15,177

(1) Effective tax rate of 20.0% used for both 2026 and 2025 adjustments.

DUCOMMUN INCORPORATED AND SUBSIDIARIES

REMAINING PERFORMANCE OBLIGATIONS BY REPORTING SEGMENT

(Unaudited)

(Dollars in thousands)

April 4,

2026 December 31,

2025

Consolidated Ducommun

Military and space $ 678,812 $ 692,719

Commercial aerospace 381,912 402,174

Industrial 13,006 11,147

Total $ 1,073,730 $ 1,106,040

Electronic Systems

Military and space $ 496,316 $ 492,244

Commercial aerospace 56,542 49,535

Industrial 13,006 11,147

Total $ 565,864 $ 552,926

Structural Systems

Military and space $ 182,496 $ 200,475

Commercial aerospace 325,370 352,639

Total $ 507,866 $ 553,114

Under generally accepted accounting principles in the United States Accounting Standards Codification 606, the Company defines performance obligations as customer placed purchase orders (“PO”) with firm fixed price and firm delivery dates. The unrecognized revenue on POs are the remaining performance obligations.

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May 12, 2026

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Document Type

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Document Period End Date

May 12, 2026

Entity Registrant Name

DUCOMMUN INCORPORATED

Entity Incorporation, State or Country Code

Entity File Number

001-08174

Entity Tax Identification Number

95-0693330

Entity Address, Address Line One

600 Anton Boulevard, Suite 1100

Entity Address, City or Town

Costa Mesa

Entity Address, State or Province

Entity Address, Postal Zip Code

92626-7100

City Area Code

657

Local Phone Number

335-3665

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Cover page.

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For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

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- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

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No definition available.

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- Definition

Address Line 1 such as Attn, Building Name, Street Name

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Name of the City or Town

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Code for the postal or zip code

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Name of the state or province.

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- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

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- Definition

Indicate if registrant meets the emerging growth company criteria.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

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- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

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No definition available.

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Two-character EDGAR code representing the state or country of incorporation.

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No definition available.

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The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

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The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

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Local phone number for entity.

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No definition available.

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- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

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- Definition

Title of a 12(b) registered security.

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-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

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- Definition

Name of the Exchange on which a security is registered.

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-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

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- Definition

Trading symbol of an instrument as listed on an exchange.

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- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

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