Adam D. Portnoy
Managing Dir., President & CEO at The RMR Group Inc.
Sits on 6 boards. Overboarded · 6 public boards Last updated September 27, 2026
Time on boards
- Boards served
- 6
- Current seats
- 6
- Board service
- 17 years
- Director since
- 2023
17 years of board service in total across 6 boards, counting each seat separately. Longest: The RMR Group Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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Service Properties Trust June 11, 202666.1%
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Diversified Healthcare Trust June 10, 202677.8%
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Industrial Logistics Properties Trust June 9, 202669.9%
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The RMR Group Inc. March 26, 202698.7%
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Service Properties Trust June 13, 202568.0%
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Office Properties Income Trust June 11, 202565.2%
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Diversified Healthcare Trust May 29, 202578.5%
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Industrial Logistics Properties Trust May 28, 202576.3%
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The RMR Group Inc. March 27, 202598.2%
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Service Properties Trust June 14, 202468.2%
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Office Properties Income Trust June 13, 202465.3%
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Diversified Healthcare Trust May 31, 202468.4%
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Industrial Logistics Properties Trust May 30, 202466.9%
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Seven Hills Realty Trust May 30, 202468.1%
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The RMR Group Inc. March 27, 202497.6%
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Office Properties Income Trust June 13, 202369.0%
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Diversified Healthcare Trust June 5, 202358.1%
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Industrial Logistics Properties Trust June 1, 202357.3%
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The RMR Group Inc. March 27, 202397.7%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 17, 2026 | Seven Hills Realty Trust | Shares withheld for tax | −4,966 | $7.40 | $36,748 |
| Sep 17, 2026 | Diversified Healthcare Trust | Shares withheld for tax | −19,315 | $8.13 | $157,031 |
| Sep 17, 2026 | Industrial Logistics Properties Trust | Shares withheld for tax | −10,046 | $7.75 | $77,857 |
| Sep 17, 2026 | The RMR Group Inc. | Shares withheld for tax | −10,140 | $18.87 | $191,342 |
| Sep 17, 2026 | Service Properties Trust | Shares withheld for tax | −6,646 | $6.57 | $43,664 |
| Sep 10, 2026 | Diversified Healthcare Trust | Grant or award | +59,681 | — | — |
| Sep 10, 2026 | Industrial Logistics Properties Trust | Grant or award | +39,164 | — | — |
| Sep 10, 2026 | Seven Hills Realty Trust | Grant or award | +27,247 | — | — |
| Sep 10, 2026 | The RMR Group Inc. | Grant or award | +31,479 | — | — |
| Sep 10, 2026 | Service Properties Trust | Grant or award | +36,390 | — | — |
| Jun 11, 2026 | Service Properties Trust | Grant or award | +67,073 | — | — |
| Jun 10, 2026 | Diversified Healthcare Trust | Grant or award | +12,401 | — | — |
| Jun 9, 2026 | Seven Hills Realty Trust | Grant or award | +9,976 | — | — |
| Jun 9, 2026 | Industrial Logistics Properties Trust | Grant or award | +12,514 | — | — |
| Apr 2, 2026 | Service Properties Trust | Open-market purchase | +41,666,666 | $1.20 | $49,999,999 |
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