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8-K

Office Properties Income Trust (OPI)

8-K 2025-10-17 For: 2025-10-15
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT Pursuantto Section 13 or 15(d) of the SecuritiesExchange Act of 1934

Date of Report (Date of earliest event reported):

October 15, 2025

OFFICE PROPERTIES INCOME TRUST

(Exact Name of Registrant as Specified in Its Charter)

Maryland

(State or Other Jurisdiction of Incorporation)

001-34364 26-4273474
(Commission File Number) (IRS Employer Identification No.)
Two Newton Place, 255 Washington Street, Suite 300, Newton, Massachusetts 02458-1634
--- ---
(Address of Principal Executive Offices) (Zip Code)

617-219-1440

(Registrant’s Telephone Number, Including Area Code)

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<br>Act (17 CFR 230.425)
¨ Soliciting material pursuant to Rule 14a-12 under the Exchange<br>Act (17 CFR 240.14a-12)
¨ Pre-commencement communications pursuant to Rule 14d-2(b) under<br>the Exchange Act (17 CFR 240.14d-2(b))
¨ Pre-commencement communications pursuant to Rule 13e-4(c) under<br>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

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.  ¨

In this Current Report on Form 8-K, the terms“we”, “us”, and “our” refer to Office Properties Income Trust.

Item 8.01. Other Events.

2031 Notes Interest Payment

On October 15, 2025, we did not make the required interest payment of approximately $1.8 million due on our 3.450% Senior Notes due 2031, or the 2031 Notes. Under the indenture governing the 2031 Notes, we have a 30-day grace period to make the required interest payment before non-payment constitutes an “event of default”. We continue to work with our advisors to pursue our restructuring efforts.

Credit Agreement Notice

On October 15, 2025, we delivered a notice to Wells Fargo Bank, National Association, or Wells Fargo, as administrative agent under our second amended and restated credit agreement, dated January 29, 2024, with Wells Fargo and the applicable lenders, or the Credit Agreement, that we did not make the required interest payment due on the 2031 Notes. We are subject to a 30-day grace period before this event constitutes an “event of default” under the Credit Agreement.

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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 hereunto duly authorized.

OFFICE PROPERTIES INCOME TRUST
By: /s/ Brian E.<br> Donley
Name: Brian E. Donley
Title: Chief Financial Officer and Treasurer

Dated: October 16, 2025

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