The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query RDI owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/RDI"
Use Arkolith to show who owns RDI, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Nantahala Capital Management, LLC | $2.2M | 1.9M | —Held | Q1 2026 | |
| 2 | YACKTMAN ASSET MANAGEMENT LP | $299K | 265K | —Held | Q1 2026 | |
| 3 | VANGUARD FIDUCIARY TRUST CO | $93K | 82K | ▲New +82K sh | Q1 2026 | |
| 4 | CITADEL ADVISORS LLC | $79K | 70K | ▼−47% Reduced · −63K sh | Q1 2026 | |
| 5 | STATE STREET CORP | $52K | 46K | —Held | Q1 2026 | |
| 6 | Arax Advisory Partners | $17K | 15K | —Held | Q1 2026 | |
| 7 | SBI Securities Co., Ltd. | $1 | 1 | —Held | 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Mar 13, 2026 | Tompkins Sidney Craig | EVP, General Counsel | Tax withholding (F) | 16K | $17K |
| Mar 13, 2026 | COTTER ELLEN M | Director, President and CEO, Director, 10% Owner | Tax withholding (F) | 24K | $26K |
| Mar 13, 2026 | SMERLING ROBERT F | President - U.S. Cinemas | Tax withholding (F) | 14K | $15K |
| Mar 13, 2026 | COTTER MARGARET | Chairperson, EVP - RE Dev/NY, Director, 10% Owner | Tax withholding (F) | 12K | $13K |
| Mar 13, 2026 | Avanes Gilbert | EVP, CFO & Treasurer | Tax withholding (F) | 12K | $13K |
| Dec 4, 2025 | ADAMS GUY W | Director | Grant (A) | 103K | $0 |
| Dec 4, 2025 | Codding Judy Bond | Director | Grant (A) | 103K | $0 |
| Dec 4, 2025 | McEachern Douglas James | Director | Grant (A) | 103K | $0 |
| Jun 20, 2025 | Lucas Steven John | VP, Controller & CAO | Sell (S) | 109 | $147 |
| Jun 20, 2025 | Lucas Steven John | VP, Controller & CAO | Sell (S) | 38K | $51K |
| Jun 20, 2025 | Lucas Steven John | VP, Controller & CAO | Sell (S) | 2K | $3K |
| Jun 11, 2025 | Avanes Gilbert | EVP, CFO & Treasurer | Grant (A) | 275K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| AMERICA'S CAR-MART INCCRMT | 5 funds | $10.8M |
| MICROSOFT CORPMSFT | 4 funds | $1.4B |
| ALPHABET INC-CL CGOOG | 4 funds | $1.1B |
| CANADIAN NATURAL RESOURCESCNQ | 4 funds | $838.4M |
| JOHNSON & JOHNSONJNJ | 4 funds | $814.9M |
| WARNER BROS DISCOVERY INCWBD | 4 funds | $808.4M |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 4 funds | $730.3M |
| COCA-COLA CO/THEKO | 4 funds | $673.0M |
| SCHWAB (CHARLES) CORPSCHW | 4 funds | $608.9M |
| LOCKHEED MARTIN CORPLMT | 4 funds | $588.2M |
| MASTERCARD INC - AMA | 4 funds | $579.0M |
| ELEVANCE HEALTH INCELV | 4 funds | $556.0M |
Ranked by how many of RDI's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for RDI. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.