Who Owns Sonesta International Hotels Corporation?
Updated onExplore the ownership hierarchy of Sonesta International Hotels Corporation. See parent companies, holding structures, and ultimate controllers.
Ownership Chain
Sonesta International Hotels Corporation
Sonesta International Hotels Corporation is a U.S.-based hospitality company that operates a global portfolio of hotels, resorts, extended-stay suites, and cruise brands.
The RMR Group
The RMR Group is a U.S.-based public alternative asset management company focused on commercial real estate and related businesses.
Sonesta International Hotels Corporation
Sonesta International Hotels Corporation is a U.S.-based hospitality company that operates a global portfolio of hotels, resorts, extended-stay suites, and cruise brands.
The RMR Group
The RMR Group is a U.S.-based public alternative asset management company focused on commercial real estate and related businesses.
Major Shareholders
Sonesta International Hotels Corporation
Major Shareholders
| Name | Type | Ownership | As of |
|---|---|---|---|
Sonesta Holdco Corporation Identified as the corporate parent of Sonesta International Hotels Corporation in a 2025 federal court corporate disclosure filing. Related transaction documents state that Sonesta Holdco owns 100% of a closely related operating subsidiary, Sonesta Hotels International Corporation, a Maryland corporation, which manages Sonesta-branded hotels; together with Maryland registry records, this indicates that Sonesta International Hotels Corporation functions as a wholly controlled subsidiary of Sonesta Holdco, although an exact ownership percentage for this specific legal entity is not explicitly disclosed. | Corporate | — | Nov 2025 |
The RMR Group
Major Shareholders
| Name | Type | Ownership | Voting | As of |
|---|---|---|---|---|
ABP Trust Portnoy family statutory trust; public disclosures and independent analysis indicate ABP Trust owns roughly 51–52% of The RMR Group’s common equity and about 92% of total voting power via its holdings of Class A, Class B‑1, Class B‑2 shares and RMR LLC units. ABP Trust is controlled by CEO Adam D. Portnoy. | Family | 51.5% | 92.0% | Oct 2019 |
The Vanguard Group, Inc. Largest institutional holder of RMR’s publicly traded Class A shares, with about 1.6 million shares (~5% of total shares outstanding) according to 2025 ownership summaries. | Institutional | 5.0% | — | — |
BlackRock, Inc. Second‑largest institutional shareholder, reported to hold roughly 1.5 million RMR shares (just under 5% of total outstanding) based on recent institutional ownership data. | Institutional | 4.7% | — | — |
Nantahala Capital Management, LLC Activist/hedge‑fund style institutional investor holding approximately 1.15 million RMR shares, or around 3.5–3.6% of the company. | Institutional | 3.6% | — | — |
Hotchkis & Wiley Capital Management LLC Value‑oriented asset manager; filings show ownership of roughly 0.74 million RMR shares, equating to about 2.3% of shares outstanding. | Institutional | 2.3% | — | — |
Federated Hermes, Inc. Through various Federated Hermes funds, reported to own just over 0.5 million RMR shares, around 1.6% of the company. | Institutional | 1.6% | — | — |
Renaissance Technologies LLC Quantitative hedge fund manager; recent holdings show about 0.48–0.58 million RMR shares, or roughly 1.5% of outstanding shares. | Institutional | 1.5% | — | — |
Geode Capital Management, LLC Index‑oriented manager affiliated with Fidelity; disclosed stake of roughly 0.46 million RMR shares (~1.4% of the company). | Institutional | 1.4% | — | — |
State Street Corporation Large custody bank and index manager; holds approximately 0.38–0.40 million RMR shares, translating to about 1.2% ownership. | Institutional | 1.2% | — | — |
Garner Asset Management Corp. Smaller institutional investor in RMR with roughly 0.37–0.38 million shares, or about 1.2% of shares outstanding, per recent shareholder listings. | Institutional | 1.2% | — | — |
Morgan Stanley Global investment bank and asset manager; reported stake of about 0.38 million RMR shares, or slightly over 1% of the company. | Institutional | 1.2% | — | — |
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