# EDGAR Filing Document

**Accession Number:** 0002141517
**File Stem:** 0001193125-26-282952
**Filing Date:** 2026-6
**Character Count:** 11436
**Document Hash:** 0f098f259b7373dfece12c5bbe53420e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-282952.hdr.sgml**: 20260625

**ACCESSION NUMBER**: 0001193125-26-282952

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260617

**FILED AS OF DATE**: 20260625

**DATE AS OF CHANGE**: 20260625

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Helix Partners Management LP
- **CENTRAL INDEX KEY:** 0001995612

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34364
- **FILM NUMBER:** 261122706

**BUSINESS ADDRESS:**
- **STREET 1:** 545 MADISON AVENUE
- **STREET 2:** 8TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
- **BUSINESS PHONE:** (212) 708-4520

**MAIL ADDRESS:**
- **STREET 1:** 545 MADISON AVENUE
- **STREET 2:** 8TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Heller Jonathan M
- **CENTRAL INDEX KEY:** 0001886624

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34364
- **FILM NUMBER:** 261122703

**MAIL ADDRESS:**
- **STREET 1:** CANYON PARTNERS, LLC
- **STREET 2:** 1370 AVENUE OF THE AMERICAS, 30TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Helix Strategic Fund LP
- **CENTRAL INDEX KEY:** 0002141517

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34364
- **FILM NUMBER:** 261122705

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 190 ELGIN AVENUE
- **CITY:** GEORGE TOWN
- **PROVINCE COUNTRY:** E9
- **ZIP:** KY1-9001
- **BUSINESS PHONE:** (212) 379-4949

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 190 ELGIN AVENUE
- **STREET 2:** GEORGE TOWN
- **CITY:** GRAND CAYMAN
- **PROVINCE COUNTRY:** E9
- **ZIP:** 9001
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Helix Strategic Fund II LLC
- **CENTRAL INDEX KEY:** 0002141502

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34364
- **FILM NUMBER:** 261122704

**BUSINESS ADDRESS:**
- **STREET 1:** C/O HELIX PARTNERS MANAGEMENT LP
- **STREET 2:** 545 MADISON AVE, 8TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
- **BUSINESS PHONE:** (212) 379-4950

**MAIL ADDRESS:**
- **STREET 1:** C/O HELIX PARTNERS MANAGEMENT LP
- **STREET 2:** 545 MADISON AVENUE, 8TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** OFFICE PROPERTIES INCOME TRUST
- **CENTRAL INDEX KEY:** 0001456772
- **STANDARD INDUSTRIAL CLASSIFICATION:** REAL ESTATE [6500]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 264273474
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** C/O THE RMR GROUP
- **STREET 2:** TWO NEWTON PL., 255 WASH. ST., STE. 300
- **CITY:** NEWTON
- **STATE:** MA
- **ZIP:** 02458
- **BUSINESS PHONE:** (617) 219-1440

**MAIL ADDRESS:**
- **STREET 1:** C/O THE RMR GROUP
- **STREET 2:** TWO NEWTON PL., 255 WASH. ST., STE. 300
- **CITY:** NEWTON
- **STATE:** MA
- **ZIP:** 02458

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GOVERNMENT PROPERTIES INCOME TRUST
- **DATE OF NAME CHANGE:** 20161006

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Government Properties Income Trust
- **DATE OF NAME CHANGE:** 20090220

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Helix Partners Management LP<br><sub>(Last) (First) (Middle)</sub><br>545 MADISON AVENUE, 8TH FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10022<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>OFFICE PROPERTIES INCOME TRUST [ OPI ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-06-17 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Helix Strategic Fund LP<br><sub>(Last) (First) (Middle)</sub><br>WALKERS CORPORATE LIMITED,<br>190 ELGIN AVENUE<br><sub>(Street)</sub><br>GEORGE TOWN, GRAND CAYMAN, CAYMAN ISLANDS KY1-9008<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>OFFICE PROPERTIES INCOME TRUST [ OPI ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-06-17 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Helix Strategic Fund II LLC<br><sub>(Last) (First) (Middle)</sub><br>545 MADISON AVENUE, 8TH FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10022<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>OFFICE PROPERTIES INCOME TRUST [ OPI ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-06-17 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Heller Jonathan M<br><sub>(Last) (First) (Middle)</sub><br>545 MADISON AVENUE, 8TH FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10022<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>OFFICE PROPERTIES INCOME TRUST [ OPI ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-06-17 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Common Shares of Beneficial Interest | 2064837 | I | See footnotes<sup>(1)(2)(4)</sup> |
| Common Shares of Beneficial Interest | 3486866 | I | See footnotes<sup>(1)(3)(4)</sup> |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Warrants (right to buy) | 2026-06-17 | 2033-06-17 | Common Shares of Beneficial Interest | 13314 | $25.000 | I | See footnotes<sup>(1)(3)(4)</sup> |

---

### Footnotes:

(1) This Form 3 is being filed jointly by Helix Partners Management LLP, a Delaware limited partnership ("Helix Partners"), Helix Strategic Fund LP, a Cayman Islands exempted limited partnership  ("Helix Strategic Fund"), Helix Strategic Fund II LLC, a Delaware limited liability company ("Helix Strategic Fund II," and together with Helix Strategic Fund, the "Helix Funds"), and Jonathan M. Heller, a citizen of the United States of America (collectively, the "Reporting Persons"), each of whom may be deemed to have a pecuniary interest in securities reported on this Form 3 (the "Subject Securities"). The business address of Helix Partners, Helix Strategic Fund II, and Mr. Heller is 545 Madison Avenue, 8th Floor, New York, NY 10022, and the business address of Helix Strategic Fund is Walkers Corporate Limited, 190 Elgin Avenue, George Town, Grand Cayman KY1-9008, Cayman Islands.

(2) These Subject Securities are held directly by Helix Strategic Fund.

(3) These Subject Securities are held directly by Helix Strategic Fund II.

(4) Each of (a) Helix Partners, as the investment advisor to the Helix Funds with respect to the Subject Securities held by the Helix Funds and (b) Mr. Heller, as the Chief Executive Officer of Helix Partners, may be deemed to be the beneficial owner of the Subject Securities for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended. Each Reporting Person disclaims any beneficial ownership of the Subject Securities, except to the extent of any pecuniary interest therein.

**Signature:** Helix Partners Management LP, By :/s/ Samuel Jed Rubin, Chief Operating/Compliance Officer  
**Date:** 2026-06-25

**Signature:** Helix Strategic Fund LP, By :/s/ Samuel Jed Rubin, Authorized Signatory  
**Date:** 2026-06-25

**Signature:** Helix Strategic Fund II LLC, By :/s/ Samuel Jed Rubin, Authorized Signatory  
**Date:** 2026-06-25

**Signature:** /s/ Jonathan M. Heller  
**Date:** 2026-06-25

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**