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Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

For the quarter ended March 31, 2026

OR

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _________ to _________

Commission file number 1-13905

COMPX INTERNATIONAL INC.

(Exact name of Registrant as specified in its charter)

DELAWARE

  ​ ​ ​

57-0981653

(State or other jurisdiction of
incorporation or organization)

(IRS Employer
Identification No.)

5430 LBJ Freeway, Suite 1700

Dallas, Texas 75240-2620

(Address of principal executive offices)

Registrant’s telephone number, including area code (972) 448-1400

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

Title of each class

  ​ ​ ​

Trading Symbol(s)

  ​ ​ ​

Name of each exchange on which registered

Class A common stock

CIX

NYSE American

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months and (2) has been subject to such filing requirements for the past 90 days.   Yes      No  

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).   Yes      No  

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer

Accelerated filer

Non-accelerated filer

  ​Smaller reporting company

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. 

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).   Yes      No  .

As of April 30, 2026, the registrant had 12,323,057 shares of Class A common stock, $.01 par value per share, outstanding.

Table of Contents

COMPX INTERNATIONAL INC.

Index

  ​ ​ ​

Page

Part I.

FINANCIAL INFORMATION

Item 1.

Financial Statements

Condensed Consolidated Balance Sheets – December 31, 2025 and March 31, 2026 (unaudited)

- 3 -

Condensed Consolidated Statements of Income (unaudited) – Three months ended March 31, 2025 and 2026

- 4 -

Condensed Consolidated Statements of Stockholders’ Equity (unaudited) – Three months ended March 31, 2025 and 2026

- 5 -

Condensed Consolidated Statements of Cash Flows (unaudited) –Three months ended March 31, 2025 and 2026

- 6 -

Notes to Condensed Consolidated Financial Statements (unaudited)

- 7 -

Item 2.

Management’s Discussion and Analysis of Financial Condition and Results of Operations

- 11 -

Item 3.

Quantitative and Qualitative Disclosures About Market Risk

- 17 -

Item 4.

Controls and Procedures

- 17 -

Part II.

OTHER INFORMATION

Item 1.

Legal Proceedings

- 18 -

Item 1A.

Risk Factors

- 18 -

Item 6.

Exhibits

- 18 -

Items 2, 3, 4 and 5 of Part II are omitted because there is no information to report.

- 2 -

Table of Contents

COMPX INTERNATIONAL INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands)

December 31, 

March 31, 

ASSETS

2025

2026

(unaudited)

Current assets:

 

  ​

  ​

Cash and cash equivalents

$

54,096

$

49,438

Accounts receivable, net

 

13,766

 

18,959

Inventories, net

 

30,410

 

30,070

Prepaid expenses and other

 

1,826

 

1,607

Total current assets

 

100,098

 

100,074

Other assets:

 

  ​

 

  ​

Note receivable from affiliate

 

8,000

 

7,400

Goodwill

 

23,742

 

23,742

Operating lease right-of-use asset

1,014

Other noncurrent assets

 

645

 

679

Total other assets

 

32,387

 

32,835

Property and equipment:

 

  ​

 

  ​

Land

 

5,390

 

5,390

Buildings

 

23,634

 

23,634

Equipment

 

78,021

 

78,137

Construction in progress

 

477

 

937

 

107,522

 

108,098

Less accumulated depreciation

 

83,813

 

84,645

Net property and equipment

 

23,709

 

23,453

Total assets

$

156,194

$

156,362

LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:

 

  ​

Accounts payable and accrued liabilities

$

15,320

$

10,424

Operating lease liability

88

Income taxes payable to affiliate

 

1,726

 

3,795

Total current liabilities

 

17,046

 

14,307

Noncurrent liabilities:

 

 

Deferred income taxes

405

243

Operating lease liability

926

Other

113

101

Total noncurrent liabilities

518

1,270

Stockholders' equity:

 

  ​

 

  ​

Preferred stock

 

 

Class A common stock

 

123

 

123

Additional paid-in capital

 

53,513

 

53,513

Retained earnings

 

84,994

 

87,149

Total stockholders' equity

 

138,630

 

140,785

Total liabilities and stockholders’ equity

$

156,194

$

156,362

Commitments and contingencies (Note 8)

See accompanying Notes to Condensed Consolidated Financial Statements.

- 3 -

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COMPX INTERNATIONAL INC.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(In thousands, except per share data)

Three months ended

March 31, 

  ​ ​ ​

2025

  ​ ​ ​

2026

(unaudited)

Net sales

$

40,272

$

40,569

Cost of sales

 

28,109

 

27,317

Gross margin

 

12,163

 

13,252

Selling, general and administrative expense

 

6,294

 

6,202

Operating income

 

5,869

 

7,050

Interest income

 

873

 

677

Income before income taxes

 

6,742

 

7,727

Income tax expense

 

1,611

 

1,875

Net income

$

5,131

$

5,852

Basic and diluted net income per common share

$

.42

$

.48

Basic and diluted weighted average shares outstanding

 

12,319

 

12,323

See accompanying Notes to Condensed Consolidated Financial Statements.

- 4 -

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COMPX INTERNATIONAL INC.

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(In thousands)

Three months ended March 31, 2025 and 2026 (unaudited)

Class A

Additional

Total

common

paid-in

Retained

stockholders'

  ​ ​ ​

stock

  ​ ​ ​

capital

  ​ ​ ​

earnings

  ​ ​ ​

equity

Balance at December 31, 2024

$

123

$

53,396

$

92,626

$

146,145

Net income

 

 

 

5,131

 

5,131

Cash dividends ($.30 per share)

 

 

 

(3,695)

 

(3,695)

Balance at March 31, 2025

$

123

$

53,396

$

94,062

$

147,581

Balance at December 31, 2025

$

123

$

53,513

$

84,994

$

138,630

Net income

 

 

 

5,852

 

5,852

Cash dividends ($.30 per share)

 

 

 

(3,697)

 

(3,697)

Balance at March 31, 2026

$

123

$

53,513

$

87,149

$

140,785

See accompanying Notes to Condensed Consolidated Financial Statements.

- 5 -

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COMPX INTERNATIONAL INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

Three months ended

March 31, 

  ​ ​ ​

2025

  ​ ​ ​

2026

(unaudited)

Cash flows from operating activities:

 

  ​

 

  ​

Net income

$

5,131

$

5,852

Depreciation and amortization

 

945

 

868

Deferred income taxes

 

(95)

 

(194)

Other, net

 

75

 

72

Change in assets and liabilities:

 

  ​

 

Accounts receivable, net

 

(3,921)

 

(5,193)

Inventories, net

 

(863)

 

268

Accounts payable and accrued liabilities

 

(3,515)

 

(5,104)

Accounts with affiliates

 

1,696

 

2,069

Prepaids and other, net

 

410

 

205

Net cash used in operating activities

 

(137)

 

(1,157)

Cash flows from investing activities:

 

  ​

 

  ​

Capital expenditures, net

 

(822)

 

(404)

Note receivable from affiliate:

 

  ​

 

  ​

Collections

 

500

 

3,700

Advances

 

(500)

 

(3,100)

Net cash provided by (used in) investing activities

 

(822)

 

196

Cash flows from financing activities -

Dividends paid

 

(3,695)

 

(3,697)

Cash and cash equivalents - net change from:

Operating, investing and financing activities

(4,654)

(4,658)

Balance at beginning of period

 

60,782

 

54,096

Balance at end of period

$

56,128

$

49,438

Supplemental disclosures -

Noncash investing and financing activities -

Change in accruals for capital expenditures

$

(352)

$

208

Right-of-use asset obtained in exchange for a lease liability

1,014

See accompanying Notes to Condensed Consolidated Financial Statements.

- 6 -

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COMPX INTERNATIONAL INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

March 31, 2026

(unaudited)

Note 1 – Organization and basis of presentation:

Organization. We (NYSE American: CIX) were approximately 87% owned by NL Industries, Inc. (NYSE: NL) at March 31, 2026. At March 31, 2026, Valhi, Inc. (NYSE: VHI) owned approximately 83% of NL’s outstanding common stock and a wholly-owned subsidiary of Contran Corporation owned approximately 91% of Valhi’s outstanding common stock. A majority of Contran’s outstanding voting stock is held directly by Lisa K. Simmons, and by family stockholders (Thomas C. Connelly (the husband of Ms. Simmons’ late sister), a family-owned entity and various family trusts established for the benefit of Ms. Simmons, Mr. Connelly and their children) who are required to vote their shares of Contran voting stock in the same manner as Ms. Simmons. Such voting rights are personal to Ms. Simmons and last through April 22, 2030. The remainder of Contran’s outstanding voting stock is held by another trust (the “Family Trust”), which was established for the benefit of Ms. Simmons and her late sister and their children and for which a third-party financial institution serves as trustee. Consequently, at March 31, 2026, Ms. Simmons and the Family Trust may be deemed to control Contran, and therefore may be deemed to indirectly control the wholly-owned subsidiary of Contran, Valhi, NL and us.

Basis of presentation. Consolidated in this Quarterly Report are the results of CompX International Inc. and its subsidiaries. The unaudited Condensed Consolidated Financial Statements contained in this Quarterly Report have been prepared on the same basis as the audited Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2025 that we filed with the Securities and Exchange Commission (“SEC”) on March 4, 2026 (the “2025 Annual Report”). In our opinion, we have made all necessary adjustments (which include only normal recurring adjustments) in order to state fairly, in all material respects, our consolidated financial position, results of operations and cash flows as of the dates and for the periods presented. We have condensed the Consolidated Balance Sheet at December 31, 2025 contained in this Quarterly Report as compared to our audited Consolidated Financial Statements at that date, and we have omitted certain information and footnote disclosures (including those related to the Consolidated Balance Sheet at December 31, 2025) normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). Our results of operations for the interim period ended March 31, 2026 may not be indicative of our operating results for the full year. The Condensed Consolidated Financial Statements contained in this Quarterly Report should be read in conjunction with our 2025 Consolidated Financial Statements contained in our 2025 Annual Report.

Our operations are reported on a 52 or 53-week year. For presentation purposes, annual and quarterly information in the Condensed Consolidated Financial Statements and accompanying notes are presented as ended March 31, 2025, December 31, 2025 and March 31, 2026. The actual dates of our annual and quarterly periods are March 30, 2025, December 28, 2025 and March 29, 2026, respectively. Unless otherwise indicated, references in this report to “we”, “us” or “our” refer to CompX International Inc. and its subsidiaries, taken as a whole.

- 7 -

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Note 2 – Business segment information:

Our chief operating decision maker (“CODM”) evaluates segment performance based on segment operating income, which is defined as income before income taxes, exclusive of certain general corporate income and expense items (primarily interest income) and certain non-recurring items (such as gains or losses on the disposition of long-lived assets outside the ordinary course of business).

Three months ended

March 31, 

  ​ ​ ​

2025

  ​ ​ ​

2026

(In thousands)

Net sales:

  ​

 

  ​

Security Products

$

30,230

$

29,896

Marine Components

 

10,042

 

10,673

Total

$

40,272

$

40,569

Cost of sales:

 

  ​

 

  ​

Security Products

$

21,232

$

19,872

Marine Components

 

6,877

 

7,445

Total

$

28,109

$

27,317

Gross margin:

Security Products

$

8,998

$

10,024

Marine Components

 

3,165

 

3,228

Total

$

12,163

$

13,252

Segment selling, general and administrative expense:

 

  ​

 

  ​

Security Products

$

3,477

$

3,449

Marine Components

 

924

 

917

Total

$

4,401

$

4,366

Operating income:

 

  ​

 

  ​

Security Products

$

5,521

$

6,575

Marine Components

 

2,241

 

2,311

Segment operating income

 

7,762

 

8,886

Corporate operating expenses

 

(1,893)

 

(1,836)

Total operating income

 

5,869

 

7,050

Interest income

 

873

 

677

Income before income taxes

$

6,742

$

7,727

Depreciation and amortization:

 

  ​

 

  ​

Security Products

$

644

$

576

Marine Components

 

301

 

292

Total

$

945

$

868

Intersegment sales are not material.

n

- 8 -

Table of Contents

Note 3 – Accounts receivable, net:

December 31, 

March 31, 

  ​ ​ ​

2025

  ​ ​ ​

2026

(In thousands)

Accounts receivable, net:

 

  ​

 

  ​

Security Products

$

11,474

$

13,990

Marine Components

 

2,362

 

5,039

Allowance for doubtful accounts

 

(70)

 

(70)

Total accounts receivable, net

$

13,766

$

18,959

Note 4 – Inventories, net:

December 31, 

March 31, 

  ​ ​ ​

2025

  ​ ​ ​

2026

(In thousands)

Raw materials:

 

  ​

 

  ​

Security Products

$

3,979

$

3,751

Marine Components

 

1,641

 

1,592

Total raw materials

 

5,620

 

5,343

Work-in-process:

 

  ​

 

  ​

Security Products

 

14,313

 

14,706

Marine Components

 

5,594

 

5,618

Total work-in-process

 

19,907

 

20,324

Finished goods:

 

  ​

 

Security Products

 

3,002

 

2,967

Marine Components

 

1,881

 

1,436

Total finished goods

 

4,883

 

4,403

Total inventories, net

$

30,410

$

30,070

Note 5 – Accounts payable and accrued liabilities:

December 31, 

March 31, 

  ​ ​ ​

2025

  ​ ​ ​

2026

(In thousands)

Accounts payable:

 

  ​

 

  ​

Security Products

$

2,153

$

2,414

Marine Components

 

538

 

739

Corporate

6

38

Employee benefits

 

11,186

 

5,562

Taxes other than on income

 

371

 

441

Professional services

263

409

Insurance

 

224

 

173

Advances from customers

61

169

Utilities

120

77

Customer tooling

 

90

 

53

Deferred revenue

50

41

Other

 

258

 

308

Total accounts payable and accrued liabilities

$

15,320

$

10,424

- 9 -

Table of Contents

Note 6 – Income taxes:

The provision for income taxes and the difference between such provision for income taxes and the amount that would be expected using the U.S. federal statutory income tax rate of 21% are presented below.

Three months ended

March 31, 

  ​ ​ ​

2025

  ​ ​ ​

2026

(In thousands)

U.S. federal statutory tax rate

$

1,416

$

1,623

State income taxes, net of federal income tax rate

 

190

 

238

Other, net

 

5

 

14

Income tax expense

$

1,611

$

1,875

On July 4, 2025, the One Big Beautiful Bill Act was signed into law.  It did not have a material impact on our consolidated financial statements.

Note 7 – Leases:

In March 2026, we entered into an operating lease for our distribution center located in Southern California. Upon commencement, we recognized an operating lease right-of-use asset and a corresponding operating lease liability, which are included in our Condensed Consolidated Balance Sheet. As of March 31, 2026, the remaining lease term of our operating lease was approximately 7 years and the discount rate associated with such lease was 6.75%.

Note 8 – Commitments and contingencies:

From time to time, we may be involved in various environmental, contractual, product liability, patent (or intellectual property), employment and other claims and disputes incidental to our business. At least quarterly our management discusses and evaluates the status of any pending litigation to which we are a party. The factors considered in such evaluation include, among other things, the nature of such pending cases, the status of such pending cases, the advice of legal counsel and our experience in similar cases (if any). Based on such evaluation, we make a determination as to whether we believe (i) it is probable a loss has been incurred, and if so if the amount of such loss (or a range of loss) is reasonably estimable, or (ii) it is reasonably possible but not probable a loss has been incurred, and if so if the amount of such loss (or a range of loss) is reasonably estimable, or (iii) the probability a loss has been incurred is remote. We have not accrued any amounts for litigation matters because of the uncertainty of the liability and inability to reasonably estimate the liability, if any. We currently believe the disposition of all claims and disputes, individually or in the aggregate, should not have a material adverse effect on our Consolidated Financial Statements, results of operations or liquidity.

Note 9 – Financial instruments:

The following table presents the financial instruments that are not carried at fair value but which require fair value disclosure:

December 31, 2025

March 31, 2026

Carrying

Fair

Carrying

Fair

  ​ ​ ​

amount

  ​ ​ ​

value

  ​ ​ ​

amount

  ​ ​ ​

value

(In thousands)

Cash and cash equivalents

$

54,096

$

54,096

$

49,438

$

49,438

Due to their near-term maturities, the carrying amounts of accounts receivable and accounts payable are considered equivalent to fair value. See Notes 3 and 5.

Note 10 – Related party transactions:

From time to time, we may have loans and advances outstanding between us and various related parties pursuant to term and demand notes. We generally enter into these loans and advances for cash management purposes. When we loan funds to related parties, we are generally able to earn a higher rate of return on the loan than we would earn if we invested the funds in other instruments, and when we borrow from related parties, we are generally able to pay a lower rate of interest than we would pay if we had incurred third-party indebtedness. While certain of these loans to affiliates

- 10 -

Table of Contents

may be of a lesser credit quality than cash equivalent instruments otherwise available to us, we believe we have considered the credit risks in the terms of the applicable loans. In this regard, we have an unsecured revolving demand promissory note with Valhi under which, as amended, we agreed to loan Valhi up to $25 million. Our loan to Valhi, as amended, bears interest at prime plus 1.00%, payable quarterly, with all principal due on demand, but in any event no earlier than December 31, 2027. Loans made to Valhi at any time under the agreement are at our discretion. At March 31, 2026, the outstanding principal balance receivable from Valhi under the promissory note was $7.4 million. Interest income (including unused commitment fees) on our loan to Valhi was $.2 million for each of the three months ended March 31, 2025 and 2026.

Note 11 – Recent accounting pronouncements:

In November 2024, the FASB issued ASU No. 2024-03, Reporting Comprehensive Income - Expense Disaggregation Disclosures. The ASU requires additional information about specific expense categories in the notes to financial statements for both interim and annual reporting periods. The ASU is effective for us beginning with our 2027 Annual Report, and for interim reporting in the first quarter of 2028, with early adoption permitted. We are in the process of evaluating the additional disclosure requirements.

ITEM 2.

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Business Overview

We are a leading manufacturer of engineered components utilized in a variety of applications and industries. Through our Security Products segment we manufacture mechanical and electrical cabinet locks and other locking mechanisms used in postal, recreational transportation, office and institutional furniture, cabinetry, tool storage and healthcare applications. We also manufacture wake enhancement systems, stainless steel exhaust systems, custom metal fabricated parts, gauges, throttle controls, trim tabs and related hardware and accessories for the recreational marine and other industries through our Marine Components segment.

General

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended. Statements in this Quarterly Report that are not historical facts are forward-looking in nature and represent management’s beliefs and assumptions based on currently available information. In some cases, you can identify forward-looking statements by the use of words such as “believes,” “intends,” “may,” “should,” “could,” “anticipates,” “expects” or comparable terminology, or by discussions of strategies or trends. Although we believe that the expectations reflected in such forward-looking statements are reasonable, we do not know if these expectations will be correct. Such statements by their nature involve substantial risks and uncertainties that could significantly impact expected results. Actual future results could differ materially from those predicted. The factors that could cause actual future results to differ materially from those described herein are the risks and uncertainties discussed in this Quarterly Report and those described from time to time in our other filings with the SEC and include, but are not limited to, the following:

Future supply and demand for our products;
Changes in our raw material and other operating costs (such as zinc, brass, aluminum, steel and energy costs), including as a result of additional or changed tariffs on imported raw materials, and our ability to pass those costs on to our customers or offset them with reductions in other operating costs;
Price and product competition from low-cost manufacturing sources (such as China);
The impact of pricing and production decisions;
Customer and competitor strategies including substitute products;
Our ability to retain key customers;
Uncertainties associated with new product development and the development of new product features;
Pending or possible future litigation (such as litigation related to our use of certain permitted chemicals in our production process) or other actions;

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Our ability to protect or defend our intellectual property rights;
Decisions to sell operating assets other than in the ordinary course of business;
Environmental matters (such as those requiring emission and discharge standards for existing and new facilities);
The ultimate outcome of income tax audits, tax settlement initiatives or other tax matters, including future tax reform;
Government laws and regulations and possible changes therein including new environmental, health and safety, sustainability or other regulations;
General global economic and political conditions that disrupt our supply chain, reduce demand or perceived demand for component products or impair our ability to operate our facilities (including changes in the level of gross domestic product in various regions of the world, natural disasters, terrorist acts, global conflicts and public health crises);
Operating interruptions (including, but not limited to, labor disputes, leaks, natural disasters, fires, explosions, unscheduled or unplanned downtime, transportation interruptions, certain regional and world events or economic conditions and public health crises);
The introduction of new, or changes in existing, tariffs, trade barriers or trade disputes (including tariffs imposed by the U.S. government on imports from China and Mexico);
Technology related disruptions (including, but not limited to, cyber-attacks; software implementation, upgrades or improvements; technology processing failures; or other events) related to our technology infrastructure that could impact our ability to continue operations, or at key vendors which could impact our supply chain, or at key customers which could impact their operations and cause them to curtail or pause orders; and
Possible disruption of our business or increases in the cost of doing business resulting from terrorist activities or global conflicts.

Should one or more of these risks materialize (or the consequences of such development worsen), or should the underlying assumptions prove incorrect, actual results could differ materially from those currently forecasted or expected. We disclaim any intention or obligation to update or revise any forward-looking statement whether as a result of changes in information, future events or otherwise.

Operating Income Overview

Operating income in the first quarter of 2026 was $7.1 million compared to $5.9 million in the same period of 2025. The increase in operating income in the first quarter of 2026 compared to 2025 is primarily due to higher gross margin at Security Products and, to a lesser extent, the impact of higher sales at Marine Components.

We sell a large number of products that have a wide variation in selling price and manufacturing cost, which results in certain practical limitations on our ability to quantify the impact of changes in individual product sales quantities and selling prices on our net sales, cost of sales and gross margin. In addition, small variations in period-to-period net sales, cost of sales and gross margin can result from changes in the relative mix of our products sold.

Results of Operations

  ​ ​ ​

Three months ended

 

March 31, 

 

2025

%  

2026

%

(Dollars in thousands)

 

Net sales

$

40,272

 

100.0

%  

$

40,569

 

100.0

%

Cost of sales

 

28,109

 

69.8

 

27,317

 

67.3

Gross margin

 

12,163

 

30.2

 

13,252

 

32.7

Operating costs and expenses

 

6,294

 

15.6

 

6,202

 

15.3

Operating income

$

5,869

 

14.6

%  

$

7,050

 

17.4

%

Net sales. Net sales increased $.3 million in the first quarter of 2026 compared to the same period in 2025 primarily due to higher Marine Components sales to the industrial market partially offset by lower Security Products sales.

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See segment discussion below.

Cost of sales and gross margin. Cost of sales as a percentage of net sales decreased 2.5% in the first quarter of 2026 compared to the same period in 2025. As a result, gross margin as a percentage of net sales increased over the same period. Gross margin percentage increased in the first quarter of 2026 compared to the same period in 2025 primarily due to higher gross margin percentage at Security Products. See segment discussion below.

Operating costs and expenses. Operating costs and expenses consist primarily of sales and administrative-related personnel costs, sales commissions and advertising expenses directly related to product sales and administrative costs relating to business unit and corporate management activities, as well as any gains and losses on property and equipment. Operating costs and expenses for the first quarter of 2026 were comparable to same period in 2025. Operating costs and expenses as a percentage of net sales for the first quarter of 2026 decreased slightly due to increased coverage of operating costs and expenses as a result of higher sales.

Operating income. As a percentage of net sales, operating income for the first quarter of 2026 increased compared to the same period of 2025 and was primarily impacted by the factors impacting sales, cost of sales, gross margin and operating costs and expenses. See segment discussion below.

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Interest income. Interest income decreased $.2 million in the first quarter of 2026 compared to the same period in 2025 primarily due to lower average interest rates and decreased average investment balances.

Provision for income taxes. A tabular reconciliation of our actual tax provision to the U.S. federal statutory income tax rate is included in Note 6 to the Condensed Consolidated Financial Statements. Our operations are wholly within the U.S. and therefore our effective income tax rate is primarily reflective of the U.S. federal statutory rate and applicable state taxes.

Segment Results

Key performance indicators for our segments are gross margin and operating income.

Three months ended

  ​ ​ ​

 

March 31, 

%  

 

  ​ ​ ​

2025

  ​ ​ ​

2026

  ​ ​ ​

Change

 

(Dollars in thousands)

 

Security Products:

 

  ​

 

  ​

 

  ​

Net sales

$

30,230

$

29,896

 

(1)

%

Cost of sales

 

21,232

 

19,872

 

(6)

Gross margin

 

8,998

 

10,024

 

11

Operating costs and expenses

 

3,477

 

3,449

 

(1)

Operating income

$

5,521

$

6,575

 

19

Gross margin

 

29.8

%  

 

33.5

%  

  ​

Operating income margin

 

18.3

 

22.0

 

  ​

Security Products. Security Products net sales decreased 1% in the first quarter of 2026 compared to the same period last year primarily due to lower sales across a variety of markets. The decrease was driven by $.3 million lower sales to the healthcare market and $.2 million lower sales to each of the general cabinetry, electric control panel, and gas station security markets. These decreases were partially offset by $.3 million higher sales to the tool storage market and $.2 million higher sales to the institutional furniture market. Gross margin as a percentage of net sales increased in the first quarter primarily due to a more favorable customer and product mix. Operating income margin also increased, primarily due to the improvement in gross margin discussed above.

Three months ended

  ​ ​ ​

 

March 31, 

%  

 

  ​ ​ ​

2025

  ​ ​ ​

2026

  ​ ​ ​

Change

 

(Dollars in thousands)

 

Marine Components:

 

  ​

 

  ​

 

  ​

Net sales

$

10,042

$

10,673

 

6

%

Cost of sales

 

6,877

 

7,445

 

8

Gross margin

 

3,165

 

3,228

 

2

Operating costs and expenses

 

924

 

917

 

(1)

Operating income

$

2,241

$

2,311

 

3

Gross margin

 

31.5

%  

 

30.2

%  

  ​

Operating income margin

 

22.3

 

21.7

 

  ​

Marine Components. Marine Components net sales increased 6% in the first quarter of 2026 compared to the same period last year primarily due to $1.9 million higher sales to the industrial market partially offset by $1.4 million lower sales to the towboat market. Towboat market sales in the first quarter of 2025 benefitted from a one-time customer stocking event that did not repeat in 2026. Gross margin as a percentage of net sales decreased in the first quarter of 2026 compared to the same period last year primarily due to higher cost inventory produced during the fourth quarter of 2025 and sold in the first quarter of 2026, partially offset by increased coverage of fixed costs on higher sales. Operating income margin decreased primarily due to the factors impacting gross margin discussed above, partially offset by increased coverage of operating costs and expenses on higher sales.

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Outlook. Net sales for the first quarter of 2026 exceeded the prior year period, primarily driven by improved demand in the industrial market at Marine Components. Security Products sales reflected mixed performance across the original equipment manufacturer (“OEM”) markets, driven by differences in customer demand cycles and project timing, resulting in slightly lower net sales compared to the prior year period. Operating income increased compared to the prior year primarily due to a more favorable customer and product mix at Security Products and, to a lesser extent, the impact of higher sales at Marine Components.

For the full year 2026, we expect modest net sales growth as we continue to align pricing, product features, and service levels with market conditions and customer requirements. Net sales growth at Marine Components is expected to be driven primarily by the industrial market. Recreational marine sales have largely stabilized and sales to the towboat market in 2026 are expected to be generally comparable to 2025 (excluding the impact of the one-time stocking event noted above). At Security Products, we expect net sales to be consistent with the prior year, reflecting anticipated continued variability across multiple OEM markets.

We expect gross margin and operating income margins across both segments in 2026 to remain generally comparable to 2025. Operating income margin at Security Products benefited from favorable mix in the first quarter of 2026; however, margins are expected to moderate over the remainder of the year. We increased inventory levels across both segments during 2025 to support customer demand. These actions included an insourcing initiative at Security Products and a shift in customer mix at Marine Components. Inventory levels at the end of the first quarter of 2026 were comparable to those at December 31, 2025 and are expected to remain at these levels, consistent with near-term operating requirements.

We manufacture substantially all our products in the U.S. and source a substantial majority of our raw materials from U.S. suppliers. We also source certain components, primarily electronic components, from suppliers in Asia, including China. Beginning in the second quarter of 2025 and continuing through the first quarter of 2026, we incurred tariff-related surcharges to certain raw materials, primarily electronic components. In addition, some of our U.S.-based suppliers are applying tariff-related surcharges on certain domestically sourced materials. Where possible, we increase selling prices to recover these higher raw material costs, although the extent to which we can fully recover such costs will depend on a variety of factors including the ultimate tariff rate, duration of tariffs, and our customers’ ability to substitute alternative products. We will continue to monitor current and anticipated near-term customer demand levels to ensure our production capabilities and inventories are aligned accordingly.

Our expectations for our operations and the markets we serve are based on a number of factors outside our control. Currently, our supply chains are stable and transportation and logistical delays are minimal. We have experienced global and domestic supply chain challenges in the past. Any future impacts on our operations will depend on, among other things, disruption to our operations or our suppliers’ operations, the effect of tariffs, and the impact of broader economic conditions, consumer confidence, and geopolitical events affecting demand for our products or our customers’ and suppliers’ operations, all of which remain uncertain and cannot be predicted.

Liquidity and Capital Resources

Consolidated cash flows –

Operating activities. Trends in cash flows from operating activities, excluding changes in assets and liabilities, have generally been similar to the trends in operating earnings. Changes in assets and liabilities result primarily from the timing of production, sales and purchases. Changes in assets and liabilities generally tend to even out over time. However, period-to-period relative changes in assets and liabilities can significantly affect the comparability of cash flows from operating activities.

We generally report a net use of cash from operating activities in the first three months of each year due to seasonal changes in the level of our working capital. Our net cash used by operating activities for the first three months of 2026 increased by $1.0 million as compared to the first three months of 2025. The increase in net cash used is primarily due to the net effects of a $1.9 million increase in the amount of net cash used by relative changes in our inventories, receivables, prepaids, payables and non-tax related accruals in 2026 and a $1.2 million increase in operating income in 2026.

Changes in working capital can have a significant effect on cash flows from operating activities. As shown below, the change in our average days sales outstanding increased from December 31, 2025 to March 31, 2026, with changes

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varying by segment primarily as a result of relative changes in the timing of sales and collections relative to the end of the quarter. For comparative purposes, we have provided December 31, 2024 and March 31, 2025 numbers below.

December 31, 

March 31, 

December 31, 

March 31, 

Days Sales Outstanding:

  ​ ​ ​

2024

  ​ ​ ​

2025

  ​ ​ ​

2025

  ​ ​ ​

2026

Security Products

 

36 Days

 

43 Days

35 Days

 

42 Days

Marine Components

 

23 Days

 

34 Days

26 Days

 

43 Days

Consolidated CompX

 

33 Days

 

41 Days

33 Days

 

43 Days

As shown below, our average number of days in inventory decreased from December 31, 2025 to March 31, 2026 primarily due to lower days in inventory at Marine Components driven by higher sales volumes in the first quarter of 2026 as compared to the fourth quarter of 2025. For comparative purposes, we have provided December 31, 2024 and March 31, 2025 numbers below.

December 31, 

March 31, 

December 31, 

March 31, 

Days in Inventory:

  ​ ​ ​

2024

  ​ ​ ​

2025

  ​ ​ ​

2025

  ​ ​ ​

2026

Security Products

 

85 Days

 

88 Days

98 Days

 

98 Days

Marine Components

 

130 Days

 

114 Days

141 Days

 

106 Days

Consolidated CompX

 

94 Days

 

94 Days

108 Days

 

100 Days

Investing activities. Our capital expenditures were $.4 million and $.8 million in the first three months of 2026 and 2025, respectively. During the first three months of 2026, Valhi repaid a net $.6 million under the promissory note ($3.1 million of gross borrowings and $3.7 million of gross repayments). During the first three months of 2025, the promissory note balance with Valhi had net activity of nil ($.5 million of gross borrowings and $.5 million of gross repayments). See Note 10 to our Condensed Consolidated Financial Statements.

Financing activities. Financing activities consisted only of cash dividends. Our board of directors declared a regular quarterly dividend of $.30 per share in each of the first quarters of 2025 and 2026. The declaration and payment of future dividends and the amount thereof, if any, is discretionary and is dependent upon our results of operations, financial condition, cash requirements for our businesses, contractual requirements and restrictions and other factors deemed relevant by our board of directors. The amount and timing of past dividends is not necessarily indicative of the amount or timing of any future dividends which we might pay.

Future cash requirements –

Liquidity. Our primary source of liquidity on an ongoing basis is our cash flow from operating activities, which is generally used to (i) fund capital expenditures, (ii) repay short-term or long-term indebtedness incurred primarily for capital expenditures, investment activities or reducing our outstanding stock, (iii) provide for the payment of dividends (if declared), and (iv) lend to affiliates. From time-to-time, we will incur indebtedness, primarily to fund capital expenditures or business combinations.

Periodically, we evaluate liquidity requirements, alternative uses of capital, capital needs and available resources in view of, among other things, our capital expenditure requirements, dividend policy and estimated future operating cash flows. As a result of this process, we have in the past and may in the future seek to raise additional capital, refinance or restructure indebtedness, issue additional securities, modify our dividend policy or take a combination of such steps to manage our liquidity and capital resources. In the normal course of business, we may review opportunities for acquisitions, joint ventures or other business combinations in the component products industry. In the event of any such transaction, we may consider using available cash, issuing additional equity securities or increasing our indebtedness or that of our subsidiaries.

We believe that cash generated from operations together with cash on hand, as well as our ability to obtain external financing, will be sufficient to meet our liquidity needs for working capital, capital expenditures, debt service, dividends (if declared) and any amounts we might loan from time to time under the terms of our revolving loan to Valhi discussed in Note 10 to our Condensed Consolidated Financial Statements (which loans would be solely at our discretion) for both the next 12 months and five years. To the extent that our actual operating results or other developments differ from our expectations, our liquidity could be adversely affected.

All of our $49.4 million aggregate cash and cash equivalents at March 31, 2026 were held in the U.S.

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Capital expenditures. Firm purchase commitments for capital projects in process at March 31, 2026 totaled $.4 million. We expect our capital expenditures for 2026 will be approximately $4.3 million primarily to improve our manufacturing facilities and invest in manufacturing equipment, including new technologies and increased automation.

Stock repurchase program. At March 31, 2026, we have 523,647 shares available for repurchase under a stock repurchase program authorized by our board of directors.

Commitments and contingencies –

We are subject to certain commitments and contingencies, as more fully described in our 2025 Annual Report or in Note 8 to our Condensed Consolidated Financial Statements.

Recent accounting pronouncements –

See Note 11 to our Condensed Consolidated Financial Statements.

Critical accounting policies –

There have been no changes in the first three months of 2026 with respect to our critical accounting policies presented in Management’s Discussion and Analysis of Financial Condition and Results of Operations in our 2025 Annual Report.

ITEM  3.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

We are exposed to market risk from changes in interest rates and raw material prices. There have been no material changes in these market risks since we filed our 2025 Annual Report, and we refer you to Part I, Item 7A – “Quantitative and Qualitative Disclosure About Market Risk” in our 2025 Annual Report. See also Note 9 to our Condensed Consolidated Financial Statements.

ITEM  4.CONTROLS AND PROCEDURES.

Evaluation of Disclosure Controls and Procedures. We maintain disclosure controls and procedures which, as defined in Exchange Act Rule 13a-15(e), means controls and other procedures that are designed to ensure that information required to be disclosed in the reports that we file or submit to the SEC under the Securities Exchange Act of 1934, as amended (the “Act”), is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information we are required to disclose in the reports that we file or submit to the SEC under the Act is accumulated and communicated to our management, including our principal executive officer and our principal financial officer, or persons performing similar functions, as appropriate to allow timely decisions to be made regarding required disclosure. Our management with the participation of Scott C. James, our President and Chief Executive Officer, and Amy A. Samford, our Executive Vice President and Chief Financial Officer, has evaluated the design and operating effectiveness of our disclosure controls and procedures as of March 31, 2026. Based upon their evaluation, these executive officers have concluded that our disclosure controls and procedures are effective as of the date of such evaluation.

Internal Control Over Financial Reporting. Our management is responsible for establishing and maintaining adequate internal control over financial reporting which, as defined in Exchange Act Rule 13a-15(f), means a process designed by, or under the supervision of, our principal executive and principal financial officers, or persons performing similar functions, and effected by our board of directors, management and other personnel, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles, and includes those policies and procedures that:

Pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of our assets,
Provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with GAAP, and that receipts and expenditures are being made only in accordance with authorizations of our management and directors, and

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Provide reasonable assurance regarding prevention or timely detection of an unauthorized acquisition, use or disposition of our assets that could have a material effect on our Condensed Consolidated Financial Statements.

Changes in Internal Control Over Financial Reporting. There have been no changes in our internal control over financial reporting during the quarter ended March 31, 2026 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Part II. OTHER INFORMATION

ITEM  1.Legal Proceedings.

In addition to the matter discussed below, refer to Note 8 to our Condensed Consolidated Financial Statements and our 2025 Annual Report for descriptions of certain legal proceedings.

South Carolina Public Water Company PFAS Litigation. In April 2026, CompX filed answers denying liability in all four pending PFAS cases. We intend to defend vigorously against all claims. 

ITEM  1A.Risk Factors.

Reference is made to the 2025 Annual Report for a discussion of risk factors related to our businesses.

ITEM  6.Exhibits.

Item No.

  ​ ​ ​

Exhibit Index

31.1

Certification

31.2

Certification

32.1

Certification

101.INS

Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

101.SCH

Inline XBRL Taxonomy Extension Schema

101.CAL

Inline XBRL Taxonomy Extension Calculation Linkbase

101.DEF

Inline XBRL Taxonomy Extension Definition Linkbase

101.LAB

Inline XBRL Taxonomy Extension Label Linkbase

101.PRE

Inline XBRL Taxonomy Extension Presentation Linkbase

104

Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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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 thereunto duly authorized.

  ​ ​ ​

COMPX INTERNATIONAL INC.

(Registrant)

Date:  May 5, 2026

By:

/s/ Amy A. Samford

Amy A. Samford

(Executive Vice President and Chief Financial Officer)

By:

/s/ Amy E. Ruf

Amy E. Ruf

(Senior Vice President and Controller)

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ATTACHMENTS / EXHIBITS

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