ORIX : Submits Form 6-K （Semi-annual Financial Report） for Filing for the Second Quarter of the Fiscal Year Ending March 31, 2026

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025. Commission File Number: 001-14856 ORIX Corporation

(Translation of Registrant's Name into English)

World Trade Center Bldg., SOUTH TOWER, 2-4-1 Hamamatsu-cho, Minato-ku, Tokyo, JAPAN

(Address of Principal Executive Offices)

(Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.) Form 20-F ☒ Form 40-F ☐

Table of Document(s) Submitted

1. This is an English translation of ORIX Corporation's semi-annual financial report (hanki houkokusho) as filed with the Kanto Financial Bureau in Japan on November 13, 2025, which includes unaudited consolidated financial information prepared in accordance with generally accepted accounting principles in the United States as of March 31, 2025 and September 30, 2025 and for the six months ended September 30, 2024 and 2025.

Exhibit 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.

Exhibit 101.SCH Inline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents. Exhibit 104 Cover Page formatted as Inline XBRL and contained in Exhibit 101.

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.

ORIX Corporation

Date: November 13, 2025 By /s/ YASUAKI MIKAMI Yasuaki Mikami

Member of the Board of Directors

Senior Managing Executive Officer Responsible for Corporate Function Unit Responsible for Work Style Reform Project ORIX Corporation

CONSOLIDATED FINANCIAL INFORMATION

Notes to Translation

1. The following is an English translation of ORIX Corporation's semi-annual financial report (hanki houkokusho) as filed with the Kanto Financial Bureau in Japan on November 13, 2025, which includes unaudited consolidated financial information prepared in accordance with generally accepted accounting principles in the United States ("U.S. GAAP") as of March 31, 2025 and September 30, 2025 and for the six months ended September 30, 2024 and 2025.

2. Significant differences between U.S. GAAP and generally accepted accounting principles in Japan ("Japanese GAAP") are stated in Note 1 "Overview of Accounting Principles Utilized" of the notes to Consolidated Financial Statements.

In preparing its consolidated financial information, ORIX Corporation (the "Company") and its subsidiaries have complied with U.S. GAAP.

This document may contain forward-looking statements about expected future events and financial results that involve risks and uncertainties. Such statements are based on the Company's current expectations and are subject to uncertainties and risks that could cause actual results to differ materially from those described in the forward-looking statements. Factors that could cause such a difference include, but are not limited to, those described under "Risk Factors" in the Company's most recent annual report on Form 20-F filed with the U.S. Securities and Exchange Commission.

The Company believes that it may have been a "passive foreign investment company" for U.S. federal income tax purposes in the year to which these consolidated financial results relate by reason of the composition of its assets and the nature of its income. In addition, the Company may be a PFIC for the foreseeable future. Assuming that the Company is a PFIC, a U.S. holder of the shares or American depositary shares of the Company will be subject to special rules generally intended to eliminate any benefits from the deferral of U.S. federal income tax that a holder could derive from investing in a foreign corporation that does not distribute all of its earnings on a current basis. Investors should consult their tax advisors with respect to such rules, which are summarized in the Company's annual report.

- 1 -

1. Information on the Company and its Subsidiaries

1. Consolidated Financial Highlights

   Millions of yen

   (except for per share amounts and ratios)

   Six months ended September 30,

   2024

   Six months ended September 30,

   2025

   Fiscal year ended March 31,

   2025

   Total revenues	¥ 1,403,633	¥ 1,564,497	¥ 2,874,821
   Income before income taxes	256,991	391,482	480,463
   Net income attributable to ORIX Corporation shareholders	182,946	271,096	351,630
   Comprehensive Income attributable to ORIX Corporation shareholders	59,896	488,394	335,644
   ORIX Corporation shareholders' equity	3,902,197	4,441,677	4,089,782
   Total assets	16,339,977	17,604,283	16,866,251
   Earnings per share for net income attributable to ORIX Corporation shareholders
   Basic (yen)	159.42	240.42	307.74
   Diluted (yen)	159.15	239.91	307.16
   ORIX Corporation shareholders' equity ratio (%)	23.9	25.2	24.2
   Cash flows from operating activities	600,040	608,013	1,300,193
   Cash flows from investing activities	(602,448)	(791,090)	(1,309,695)
   Cash flows from financing activities	130,462	246,616	149,322
   Cash, Cash Equivalents and Restricted Cash at end of Period	1,303,620	1,395,723	1,321,983

2. Overview of Activities

During the six months ended September 30, 2025, no significant changes were made in the Company and its subsidiaries' operations. Additionally, there were no changes of principal subsidiaries and affiliates.

- 2 -