Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 10-Q filed 2026-08-13, as of 2026-08-13)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | MDRR · NASDAQ | 1,628,500 | 18,745 | 1.2% | 5 | 58403P402 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (5 of 5 · 58403P402)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 12,016 | 0.74% | $140K | +6,620 (+122.7%) |
| 2 | VANGUARD FIDUCIARY TRUST CO | 5,974 | 0.37% | $70K | +4,423 (+285.2%) |
| 3 | Tower Research Capital LLC (TRC) | 702 | 0.04% | $8K | +447 (+175.3%) |
| 4 | UBS Group AG | 52 | 0.00% | $606 | -147 (-73.9%) |
| 5 | CITIGROUP INC | 1 | 0.00% | $12 | — |
Exited since 2026-03-31 (3 filers; largest 3 shown)
| HighTower Advisors, LLC | −41,062 |
| CWM, LLC | −260 |
| NISA INVESTMENT ADVISORS, LLC | −75 |
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| Francis P. Kavanaugh | SCHEDULE 13D/A | 2026-03-13 | 2026-03-13 | 1,369,991 | 68.6% |
| Charles Brent Winn Jr. | SCHEDULE 13D | 2026-02-03 | 2026-01-28 | 59,202 | 5.25% |
| ALF Operating Partners, Ltd. | SCHEDULE 13D/A | 2025-12-12 | 2025-12-10 | 7,810 | 0.7% |
| Finley Alfred Lee | SCHEDULE 13D/A | 2025-12-12 | 2025-12-10 | 65,099 | 5.9% |
| Finley Susan | SCHEDULE 13D/A | 2025-12-12 | 2025-12-10 | 57,810 | 5.2% |
| Kory J. Kramer | SCHEDULE 13D/A | 2025-09-03 | 2025-08-29 | 41,039 | 2.73% |
| Marc Carlson | SCHEDULE 13D/A | 2025-09-03 | 2025-08-29 | 21,039 | 1.4% |
| Kramer Kory J. | SCHEDULE 13D | 2025-01-07 | 2024-12-13 | 100,000 | 7.43% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.