7 tracked 13F filers disclose a position in MDRR as of the latest SEC 13F filings, a combined $551K in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | HighTower Advisors, LLC | $464K | 41K | ▲~0% Added · +6 sh | Q1 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $61K | 5K | →First observed position No prior filed position | Q1 2026 | |
| 3 | VANGUARD FIDUCIARY TRUST CO | $18K | 2K | →First observed position No prior filed position | Q1 2026 | |
| 4 | CWM, LLC | $3K | 260 | ▲New +260 sh | Q1 2026 | |
| 5 | Tower Research Capital LLC (TRC) | $3K | 255 | ▼−42% Reduced · −181 sh | Q1 2026 | |
| 6 | UBS Group AG | $2K | 199 | ▼−31% Reduced · −90 sh | Q1 2026 | |
| 7 | CITIGROUP INC | $11 | 1 | ▲New +1 sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 0 funds opened a new position in MDRR, while 1 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| INVESCO QQQ TRUST SERIES 1QQQ | 1 funds | $139.5M |
| DIREX DAIL SEMI BU 3X ET-USDSOXL | 1 funds | $114.1M |
| APPLE INCAAPL | 1 funds | $112.2M |
| MICROSOFT CORPMSFT | 1 funds | $93.6M |
| MICRON TECHNOLOGY INCMU | 1 funds | $90.9M |
| TESLA INCTSLA | 1 funds | $69.2M |
| NVIDIA CORPNVDA | 1 funds | $65.6M |
| BROADCOM INCAVGO | 1 funds | $55.4M |
| ALPHABET INC-CL AGOOGL | 1 funds | $48.7M |
| ISHARES CORE U.S. AGGREGATEAGG | 1 funds | $39.7M |
| SS SPDR S&P 500 ETF TRUST-USSPY | 1 funds | $35.2M |
| VANECK PHARMACEUTICAL ETFPPH | 1 funds | $31.6M |
Ranked by how many of MDRR's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 31, 2026 | Winn Charles Brent Jr. | CHIEF FINANCIAL OFFICER | Buy (P) | 10 | $120 |
| Aug 28, 2026 | Winn Charles Brent Jr. | CHIEF FINANCIAL OFFICER | Buy (P) | 3 | $36 |
| Aug 27, 2026 | Winn Charles Brent Jr. | CHIEF FINANCIAL OFFICER | Buy (P) | 250 | $3K |
| Aug 26, 2026 | Winn Charles Brent Jr. | CHIEF FINANCIAL OFFICER | Buy (P) | 6 | $69 |
| Aug 20, 2026 | Winn Charles Brent Jr. | CHIEF FINANCIAL OFFICER | Buy (P) | 3 | $35 |
| Aug 19, 2026 | Winn Charles Brent Jr. | CHIEF FINANCIAL OFFICER | Buy (P) | 72 | $828 |
| May 22, 2026 | Winn Charles Brent Jr. | CHIEF FINANCIAL OFFICER | Buy (P) | 2K | $17K |
| May 21, 2026 | Winn Charles Brent Jr. | CHIEF FINANCIAL OFFICER | Buy (P) | 34 | $383 |
| May 20, 2026 | Winn Charles Brent Jr. | CHIEF FINANCIAL OFFICER | Buy (P) | 40 | $450 |
| May 19, 2026 | Winn Charles Brent Jr. | CHIEF FINANCIAL OFFICER | Buy (P) | 461 | $5K |
| May 18, 2026 | Winn Charles Brent Jr. | CHIEF FINANCIAL OFFICER | Buy (P) | 20 | $225 |
| Mar 13, 2026 | KAVANAUGH FRANK | CHAIRMAN, CEO & PRESIDENT, Director, 10% Owner | Buy (P) | 40K | $600K |
Connected entities for MDRR
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/MDRR/capital-change-brief"
Use Arkolith's capital_change_brief for MDRR. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MDRR. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.