Adam D. Portnoy - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Adam D. Portnoy has filed 4 SEC Form 4 filings across 4 companies in the last 90 days - buying. Lifetime open-market purchases: $50.00M.
Profile
Adam D. Portnoy holds the role of Director at Service Properties Trust (NASDAQ:SVC). Portnoy's filing history also covers DIVERSIFIED HEALTHCARE TRUST (NASDAQ:DHC) and Seven Hills Realty Trust (SEVN). Portnoy has reported 21 insider filings with the SEC since 2025. The most recent filing was in June 2026.
| Role | Director |
|---|---|
| Notability | 50/100 |
Board memberships
- Service Properties Trust
- DIVERSIFIED HEALTHCARE TRUST
- Seven Hills Realty Trust
- Industrial Logistics Properties Trust
- RMR GROUP INC.
Reported roles
- Director
- Director
- Director
- Director
- Managing Dir., President & CEO
Awards & honors
- Served in multiple leadership roles within The RMR Group's portfolio of externally managed REITs
- Participation in governance and strategic oversight across several public REITs
- Experience across acquisition, capital structure, and corporate governance disciplines within the REIT sector
Trading Pattern
InsiderAlpha's records for Adam D. Portnoy go back to 2025: 21 primary Form 4 filings, an average of 10.5 per year. The typical open-market purchase is $50.00M (1 buy totaling $50.00M). The largest single buy on record is $50.00M of SVC in 2026. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Adam D. Portnoy has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Director at Service Properties Trust (SVC) - 5 filings, 2025 to 2026
- Director at DIVERSIFIED HEALTHCARE TRUST (DHC) - 4 filings, 2025 to 2026
- Director, 10% Owner at Seven Hills Realty Trust (SEVN) - 4 filings, 2025 to 2026
- Director at Industrial Logistics Properties Trust (ILPT) - 4 filings, 2025 to 2026
- Managing Dir., President & CEO, Director at RMR GROUP INC. (RMR) - 1 filing, 2026
- Director at OFFICE PROPERTIES INCOME TRUST (OPI) - 1 filing, 2025
- Managing Dir., President CEO, Director at RMR GROUP INC. (RMR) - 2 filings, 2025
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-13 | SVC | Service Properties Trust | A - Grant or award | 67.1K | - | |
| 2026-06-12 | DHC | DIVERSIFIED HEALTHCARE TRUST | A - Grant or award | 12.4K | - | |
| 2026-06-11 | SEVN | Seven Hills Realty Trust | A - Grant or award | 10.0K | - | |
| 2026-06-10 | ILPT | Industrial Logistics Properties Trust | A - Grant or award | 12.5K | - | |
| 2026-04-02 | SVC | Service Properties Trust | P - Open-market purchase | 41.67M | $1.20 | $50.00M |
| 2026-03-27 | RMR | RMR GROUP INC. | A - Grant or award | 6.4K | - | |
| 2025-09-16 | OPI | OFFICE PROPERTIES INCOME TRUST | F - Tax withholding / forfeiture | 2.1K | $0.83 | $2K |
| 2025-09-16 | RMR | RMR GROUP INC. | F - Tax withholding / forfeiture | 7.8K | $17.28 | $134K |
| 2025-09-16 | SVC | Service Properties Trust | F - Tax withholding / forfeiture | 14.2K | $2.82 | $40K |
| 2025-09-16 | ILPT | Industrial Logistics Properties Trust | F - Tax withholding / forfeiture | 6.1K | $6.35 | $39K |
| 2025-09-16 | SEVN | Seven Hills Realty Trust | F - Tax withholding / forfeiture | 2.4K | $10.95 | $26K |
| 2025-09-16 | DHC | DIVERSIFIED HEALTHCARE TRUST | F - Tax withholding / forfeiture | 15.2K | $4.37 | $67K |
| 2025-09-09 | RMR | RMR GROUP INC. | A - Grant or award | 35.6K | - | |
| 2025-09-09 | SVC | Service Properties Trust | A - Grant or award | 87.7K | - | |
| 2025-09-09 | ILPT | Industrial Logistics Properties Trust | A - Grant or award | 40.6K | - | |
| 2025-09-09 | SEVN | Seven Hills Realty Trust | A - Grant or award | 15.9K | - | |
| 2025-09-09 | DHC | DIVERSIFIED HEALTHCARE TRUST | A - Grant or award | 81.8K | - | |
| 2025-06-13 | SVC | Service Properties Trust | A - Grant or award | 40.4K | - | |
| 2025-05-29 | DHC | DIVERSIFIED HEALTHCARE TRUST | A - Grant or award | 29.1K | - | |
| 2025-05-28 | SEVN | Seven Hills Realty Trust | A - Grant or award | 6.0K | - |
Companies - Last 90 Days
- Service Properties Trust (SVC) - 1 filing, last 2026-06-13
- DIVERSIFIED HEALTHCARE TRUST (DHC) - 1 filing, last 2026-06-12
- Seven Hills Realty Trust (SEVN) - 1 filing, last 2026-06-11
- Industrial Logistics Properties Trust (ILPT) - 1 filing, last 2026-06-10
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Adam D. Portnoy has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Laurie B. Burns - $204K of SVC open-market activity in the last 12 months
- William A. Lamkin - $190K of SVC open-market activity in the last 12 months
- Christopher J. Bilotto - $120K of SVC open-market activity in the last 12 months
- Donna D. Fraiche - $100K of SVC open-market activity in the last 12 months
- Christopher J. Bilotto - $98K of DHC open-market activity in the last 12 months
- Brian E. Donley - $72K of SVC open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- AEI Capital Ltd
- Noubar Afeyan
- Behzad Aghazadeh
- Srinivas Akkaraju
- Amwal Investments LLC
- Apollo Principal Holdings B GP, LLC
- Apollo Principal Holdings B, L.P.
- ARCH Venture Partners XII, LLC
Frequently Asked Questions
Who is Adam D. Portnoy?
Adam D. Portnoy holds the role of Director at Service Properties Trust (NASDAQ:SVC). Portnoy's filing history also covers DIVERSIFIED HEALTHCARE TRUST (NASDAQ:DHC) and Seven Hills Realty Trust (SEVN). Portnoy has reported 21 insider filings with the SEC since 2025. The most recent filing was in June 2026.…
How many SEC Form 4 filings has Adam D. Portnoy submitted recently?
4 primary Form 4 filings in the last 90 days, covering 4 companies.
Has Adam D. Portnoy been buying or selling stock?
Recorded transactions: 1 open-market purchase ($50.00M) and 0 open-market sales across all tracked filings.
Where can I see all of Adam D. Portnoy's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Adam D. Portnoy profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.