LANDSTAR SYSTEM INC 021-238 false 0000853816 0000853816 2025-10-28 2025-10-28

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) October 28, 2025

LANDSTAR SYSTEM, INC.

(Exact name of registrant as specified in its charter)

Delaware |  | 021238 |  | 06-1313069
(State or other jurisdiction of incorporation) |  | (Commission File Number) |  | (I.R.S. Employer Identification No.)

13410 Sutton Park Drive South, Jacksonville, Florida |  | 32224
(Address of principal executive offices) |  | (Zip Code)

(904) 398-9400

(Registrant’s telephone number, including area code)

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 |  | LSTR |  | NASDAQ

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

On October 28, 2025, Landstar System, Inc. (“Landstar” or the “Company”) issued a press release announcing results for the third quarter of fiscal 2025. A copy of the press release is attached hereto as Exhibit 99.1.

The information contained in Item 7.01 concerning the presentation to Landstar investors is hereby incorporated into this Item 2.02 by reference.

The information furnished under Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 hereto, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933.

Item 7.01 | Regulation FD Disclosure

A slide presentation, dated October 28, 2025, is attached hereto as Exhibit 99.2 and is incorporated herein by reference. The slide presentation provides information that may be referred to by the Company on its conference call with investors scheduled to occur on October 28, 2025 in connection with the Company’s release of results for the third quarter of fiscal 2025.

The information furnished under Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.2 hereto, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933.

Item 9.01 | Financial Statements and Exhibits

Exhibits |  |
99.1 |  | Press Release, dated October 28, 2025, of Landstar System, Inc.
99.2 |  | Slide Presentation, dated October 28, 2025, of Landstar System, Inc.
104 |  | Inline XBRL for the cover page of this Current Report on Form 8-K

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.

|  |  |  | LANDSTAR SYSTEM, INC.
Date: October 28, 2025 |  |  |  | By: |  | /s/ James P. Todd
|  |  |  | Name: |  | James P. Todd
|  |  |  | Title: |  | Vice President, Chief Financial Officer and Assistant Secretary