# EDGAR Filing Document

**Accession Number:** 0001995612
**File Stem:** 0001193125-26-282228
**Filing Date:** 2026-6
**Character Count:** 21392
**Document Hash:** 503f477744ee4cffab43e691e0f2aaac
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-282228.hdr.sgml**: 20260625

**ACCESSION NUMBER**: 0001193125-26-282228

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260625

**DATE AS OF CHANGE**: 20260625

**SUBJECT COMPANY**: 

**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

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-85197
- **FILM NUMBER:** 261119524

**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
**FILED BY**: 

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

**ORGANIZATION NAME:**
- **EIN:** 923616690
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D

**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

### Attached PDF Documents

**Attachment 1:** `ck0000000000-ex99_1.pdf`

_No text found in this document._

**Attachment 2:** `ck0000000000-ex99_2.pdf`

_No text found in this document._

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**Office Properties Income Trust**

*(Name of Issuer)*

**Common Shares of Beneficial Interest**

*(Title of Class of Securities)*

**—**

*(CUSIP Number)*

**Samuel Jed Rubin**<br>545 Madison Avenue, 8th Floor<br>New York NY 10022<br>(212) 379-4949

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**06/17/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Helix Partners Management LP** | Name of reporting person<br>**Helix Partners Management LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**5565017.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**5565017.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**5565017.00** | Aggregate amount beneficially owned by each reporting person<br>**5565017.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**25.3%** | Percent of class represented by amount in Row (11)<br>**25.3%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IA** | Type of Reporting Person (See Instructions)<br>**IA** | |

---

**Comment for Reporting Person:** (1) Includes (a) 5,551,703 Common Shares (as defined below) and (b) 13,314 Common Shares issuable upon exercise of the Warrants (as defined below), in each case beneficially owned by this Reporting Person.

(2) Based on (i) 21,953,577 Common Shares outstanding as of June 17, 2026 (as reported in the Issuer's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 23, 2026) plus (ii) 13,314 Common Shares issuable upon exercise of the Warrants.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Helix Strategic Fund LP** | Name of reporting person<br>**Helix Strategic Fund LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**CAYMAN ISLANDS** | Citizenship or place of organization<br>**CAYMAN ISLANDS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**2064837.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**2064837.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2064837.00** | Aggregate amount beneficially owned by each reporting person<br>**2064837.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**9.4%** | Percent of class represented by amount in Row (11)<br>**9.4%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** (1) Includes 2,064,837 Common Shares beneficially owned by this Reporting Person.

(2) Based on 21,953,577 Common Shares outstanding as of June 17, 2026 (as reported in the Issuer's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 23, 2026).

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Helix Strategic Fund II LLC** | Name of reporting person<br>**Helix Strategic Fund II LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**3500180.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**3500180.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**3500180.00** | Aggregate amount beneficially owned by each reporting person<br>**3500180.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**15.9%** | Percent of class represented by amount in Row (11)<br>**15.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** (1) Includes (a) 3,486,866 Common Shares and (b) 13,314 Common Shares issuable upon exercise of the Warrants, in each case beneficially owned by this Reporting Person.

(2) Based on (i) 21,953,577 Common Shares outstanding as of June 17, 2026 (as reported in the Issuer's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 23, 2026) plus (ii) 13,314 Common Shares issuable upon exercise of the Warrants.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Jonathan Heller** | Name of reporting person<br>**Jonathan Heller** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**5565017.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**5565017.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**5565017.00** | Aggregate amount beneficially owned by each reporting person<br>**5565017.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**25.3%** | Percent of class represented by amount in Row (11)<br>**25.3%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**HC** | Type of Reporting Person (See Instructions)<br>**HC** | |

---

**Comment for Reporting Person:** (1) Includes (a) 5,551,703 Common Shares and (b) 13,314 Common Shares issuable upon exercise of the Warrants, in each case beneficially owned by this Reporting Person.

(2) Based on (i) 21,953,577 Common Shares outstanding as of June 17, 2026 (as reported in the Issuer's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 23, 2026) plus (ii) 13,314 Common Shares issuable upon exercise of the Warrants.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Shares of Beneficial Interest

**(b) Name of Issuer:**
Office Properties Income Trust

**(c) Address of Issuer's Principal Executive Offices:**
Two Newton Place, 255 Washington Place, Suite 300, Newton, MA, 02458

**Item 4. Purpose of Transaction**

The response to Item 3 of this Schedule 13D is incorporated by reference herein.

The Reporting Persons acquired the Secured Exit Notes, the Common Shares, and the Warrants in connection with the Issuer's emergence from bankruptcy on the Effective Date.

On the Effective Date, the Issuer adopted its Fourth Amended and Restated Bylaws, which provides that the Board of Trustees (the "Board") of the Issuer shall include up to three Trustees who are initially designated for appointment to the Board by Helix Partners, with such designation right consisting of (a) up to three Trustees so long as Helix Partners and its affiliates beneficially own 15% or more of the outstanding Common Shares of the Issuer, (b) up to two Trustees so long as Helix Partners and its affiliates beneficially own 10% or more of the outstanding Common Shares of the Issuer and (c) up to one Trustee so long as Helix Partners and its affiliates beneficially own 5% or more of the outstanding Common Shares of the Issuer. Pursuant to the Fourth Amended and Restated Bylaws, Mr. Heller was appointed to the Board, as designated by Helix Partners, and Mr. Heller was also named the Chairman of the Board, effective as of the Effective Date. Helix Partners did not initially designate other Trustees for appointment as of the Effective Date.

In addition, as of the Effective Date, the Issuer entered into a board observation rights agreement with Helix Partners (the "Board Observation Rights Agreement"), which provides that Helix Partners is entitled to appoint one non-voting Board Observer so long as Helix Partners beneficially owns 15% or more of the outstanding Common Shares of the Issuer. Pursuant to the Board Observation Rights Agreement, Helix Partners appointed Jonathan Wietschner as its Board Observer, effective as of the Effective Date. The foregoing description of the Board Observation Rights Agreement is qualified in its entirety by reference to the full text of the Board Observation Rights Agreement, which is attached hereto as Exhibit 99.2 and incorporated herein by reference.

Further, as of the Effective Date, the Issuer and CSC Delaware Trust Company, as warrant agent, entered into a warrant agreement (the "Warrant Agreement"), pursuant to which the Issuer issued the Warrants in accordance with the Plan, pursuant to which Helix Strategic Fund II has the right, until June 17, 2033, to purchase up to 13,314 Common Shares at an initial exercise price of $25.00 per share, subject to customary anti-dilution and other adjustments in accordance with the terms of the Warrant Agreement. The foregoing description of the Warrant Agreement is qualified in its entirety by reference to the full text of the Warrant Agreement, which is incorporated herein by reference to Exhibit 4.3 of the Issuer's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 23, 2026.

As the Chairman of the Board, Mr. Heller is continually involved in influencing and considering the strategy and operations of the Issuer. In such capacity, Mr. Heller is involved in all significant aspects of the Issuer, including the Issuer's business, operations, management, ownership, capital and corporate structure, dividend policy, corporate governance, board composition, incentive programs and transactions as a means of enhancing shareholder value, including share repurchases and strategic and other corporate transactions. Moreover, as a result of their ownership interest in the Issuer, the Reporting Persons exercise significant influence over the Issuer's business practices and strategy and all matters requiring action by the Issuer's shareholders, including the election of the Board of the Issuer and the ability as shareholders to approve or reject strategic or other corporate transactions.

In connection with strategic or other corporate transactions, Mr. Heller, together with the other Reporting Persons, have in the past engaged and expect to continue to engage in discussions with, and may exchange information with, potential strategic partners, acquirers/co-acquirers, investment professionals and potential financing sources, may participate in any related transaction as principal and/or as a provider of financing and may enter into agreements with respect to the foregoing. Mr. Heller, together with the other Reporting Persons, have in the past considered and may in the future consider a wide variety of matters and plans or proposals that could result in the occurrence of any of the matters set forth in clauses (a)-(j) of Item 4 of Schedule 13D.

The Reporting Persons review their investment in the Issuer on a continuing basis. Depending on various factors, including, without limitation, the Issuer's financial position, results of operations, price levels of the Common Shares, conditions in the securities market and general economic and industry conditions, the Reporting Persons may in the future take or propose to take such actions with respect to their investment in the Issuer as they deem appropriate, including, without limitation, acquiring additional Common Shares or Warrants (or other securities of or interests in the Issuer) and/or the entirety of the Issuer or disposing of all or a portion of the Common Shares or Warrants (or other securities of or interests in the Issuer, including the Secured Exit Notes) beneficially owned by them in the public markets, in privately negotiated transactions or otherwise, and potentially entering into derivative or other transactions that increase or decrease the Reporting Persons' economic interest in or control over the Issuer.

**Item 5. Interest in Securities of the Issuer**

**(a)**
See rows (11) and (13) of the cover pages to this Schedule 13D for the aggregate number of Common Shares and the percentage of the Common Shares beneficially owned by each of the Reporting Persons.

As of the date of this Schedule 13D, Helix Strategic Fund II directly holds Warrants to purchase 13,314 Common Shares. Each of Helix Partners and Mr. Heller, as a result of the relationships described in Item 2, may be deemed to directly or indirectly beneficially own the shares of Common Shares underlying the Warrants held by Helix Strategic Fund II, which are reported on the cover page to this Schedule 13D for such Reporting Persons, as applicable.

Pursuant to Rule 13d-3(d)(1)(i) under the Act, the beneficial ownership disclosed on the cover pages of this Schedule 13D includes Common Shares that currently may be issued upon the exercise of the Warrants described above. The applicable ownership percentages reported in this Schedule 13D are calculated based on (i) 21,953,577 Common Shares outstanding as of June 17, 2026 (as reported in the Issuer's Current Report on Form 8-K filed with the Securities and Exchange Commission on June 23, 2026) and (ii) 13,314 Common Shares issuable upon exercise of the Warrants.

**(b)**
See rows (7) through (10) of the cover pages to this Schedule 13D for the number of Common Shares as to which each Reporting Person has the sole or shared power to vote or direct the vote and sole or shared power to dispose or to direct the disposition.

**(c)**
Except as described in Item 4 of this Schedule 13D, no transactions in Common Shares have been effected by the Reporting Persons during the past sixty (60) days.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

The response to Item 3 and Item 4 of this Schedule 13D is incorporated by reference herein.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Helix Partners Management LP

**Signature:** /s/ Samuel Jed Rubin

**Name/Title:** Chief Operating/Compliance Officer

**Date:** 06/25/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Helix Strategic Fund LP

**Signature:** /s/ Samuel Jed Rubin

**Name/Title:** Authorized Signatory

**Date:** 06/25/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Helix Strategic Fund II LLC

**Signature:** /s/ Samuel Jed Rubin

**Name/Title:** Authorized Signatory

**Date:** 06/25/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Jonathan Heller

**Signature:** /s/ Jonathan Heller

**Name/Title:** Jonathan Heller

**Date:** 06/25/2026