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Related Person Transactions | 6 Months Ended
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Jun. 30, 2025
Related Party Transactions [Abstract] |
Related Person Transactions | Related Person Transactions We have relationships and historical and continuing transactions with RMR, RMR Inc., AlerisLife (including Five Star) and others related to them, including other companies to which RMR or its subsidiaries provide management services and some of which have trustees, directors or officers who are also our Trustees or officers. RMR is a majority owned subsidiary of RMR Inc. The Chair of our Board of Trustees and one of our Managing Trustees, Adam Portnoy, is the sole trustee, an officer and the controlling shareholder of ABP Trust, which is the controlling shareholder of RMR Inc., the chair of the board of directors, a managing director and the president and chief executive officer of RMR Inc., an officer and employee of RMR and the sole director of AlerisLife. Christopher Bilotto, our other Managing Trustee and President and Chief Executive Officer, and Matthew Brown, our Chief Financial Officer and Treasurer, are also officers and employees of RMR. Jennifer Clark, our Secretary and former Managing Trustee, also serves as a managing director and the executive vice president, general counsel and secretary of RMR Inc., an officer and employee of RMR, an officer of ABP Trust and secretary of AlerisLife. Jeffrey Leer, the president and chief executive officer of AlerisLife, is an executive officer of RMR. Some of our Independent Trustees also serve as independent trustees of other public companies to which RMR or its subsidiaries provide management services. Mr. Portnoy serves as the chair of the board and as a managing trustee of these companies. Other officers of RMR, including Ms. Clark and certain of our officers, serve as managing trustees or officers of certain of these companies. In addition, officers of RMR and RMR Inc. serve as our officers and officers of other companies to which RMR or its subsidiaries provide management services. As of June 30, 2025, ABP Trust and Mr. Portnoy owned 9.8% of our outstanding common shares. AlerisLife. On February 16, 2024, we exercised our purchase right in connection with ABP Trust's acquisition of AlerisLife in March 2023 and acquired, together with our applicable TRS, approximately 34.0% of the then outstanding AlerisLife common shares from ABP Trust, for a total purchase price of $15,459, including transaction related costs, and we, our applicable TRS, ABP Trust and AlerisLife entered into a stockholders agreement. Following this acquisition, ABP Trust owns the remaining approximate 66.0% of AlerisLife. On February 14, 2025, AlerisLife paid an aggregate cash dividend of $50,000 to its stockholders. Our pro rata share of this cash dividend was $17,000. On July 15, 2025, AlerisLife paid an aggregate cash dividend of $10,000 to its stockholders. Our pro rata share of this cash dividend was $3,400. See Note 9 for further information regarding our relationships, agreements and transactions with AlerisLife (including Five Star). Our Joint Ventures. In connection with our entering into the LSMD JV in January 2022, we paid mortgage escrow amounts and closing costs that were payable by that joint venture. The remaining costs totaled $4,056 as of June 30, 2025 and are included in other assets, net, in our condensed consolidated balance sheet. RMR provides management services to each of the Seaport JV and the LSMD JV. See Note 10 for further information regarding those management agreements with RMR. Our Manager, RMR. We have two agreements with RMR to provide management services to us. See Note 10 for further information regarding our management agreements with RMR. Leases with RMR. We lease office space to RMR in certain of our properties for RMR’s property management offices. We recognized rental income from RMR for this leased office space of $102 and $148 for the three months ended June 30, 2025 and 2024, respectively, and $209 and $257 for the six months ended June 30, 2025 and 2024, respectively. For further information about these and other such relationships and certain other related person transactions, see our Annual Report.

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- Definition The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483326/850-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480990/946-20-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480990/946-20-50-5 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480990/946-20-50-6 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477968/946-235-50-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477968/946-235-50-2 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(2)(g)(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(2)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(2)(e)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/850/tableOfContent Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483326/850-10-50-6 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483326/850-10-50-1 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483326/850-10-50-1 + Details
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