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/RDNT/capital-change-brief"
Use Arkolith's capital_change_brief for RDNT. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $560.9M | 10.0M | ▲+0.1% Added · +15K sh | Q1 2026 | |
| 2 | RTW INVESTMENTS, LP | $239.5M | 4.3M | ▲+8.8% Added · +347K sh | Q1 2026 | |
| 3 | PRICE T ROWE ASSOCIATES INC /MD/ | $232.2M | 4.2M | ▲+54% Added · +1.5M sh | Q1 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $217.9M | 3.9M | ▲New +3.9M sh | Q1 2026 | |
| 5 | BECK MACK & OLIVER LLC | $177.0M | 3.2M | ▼−2.0% Reduced · −65K sh | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $173.9M | 3.1M | ▲New +3.1M sh | Q1 2026 | |
| 7 | STATE STREET CORP | $148.2M | 2.7M | ▲+2.8% Added · +73K sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $96.4M | 1.7M | ▲+3.1% Added · +52K sh | Q1 2026 | |
| 9 | Hood River Capital Management LLC | $78.9M | 1.4M | ▲+1.1% Added · +16K sh | Q1 2026 | |
| 10 | DIMENSIONAL FUND ADVISORS LP | $77.1M | 1.4M | ▲+1.4% Added · +19K sh | Q1 2026 | |
| 11 | Alyeska Investment Group, L.P. | $73.2M | 1.3M | ▲+14% Added · +157K sh | Q1 2026 | |
| 12 | Clearbridge Investments, LLC | $71.5M | 1.3M | ▲+15% Added · +164K sh | Q1 2026 | |
| 13 | GOLDMAN SACHS GROUP INC | $66.5M | 1.2M | ▲+6.3% Added · +70K sh | Q1 2026 | |
| 14 | PRINCIPAL FINANCIAL GROUP INC | $62.1M | 1.1M | ▼−1.9% Reduced · −22K sh | Q1 2026 | |
| 15 | AMERICAN CENTURY COMPANIES INC | $50.4M | 902K | ▼−0.6% Reduced · −6K sh | Q1 2026 | |
| 16 | AMERIPRISE FINANCIAL INC | $50.2M | 899K | ▼−20% Reduced · −221K sh | Q1 2026 | |
| 17 | Allspring Global Investments Holdings, LLC | $47.9M | 865K | ▼−17% Reduced · −183K sh | Q1 2026 | |
| 18 | Point72 Asset Management, L.P. | $47.8M | 855K | ▲+232% Added · +598K sh | Q1 2026 | |
| 19 | MORGAN STANLEY | $47.5M | 850K | ▼−10% Reduced · −100K sh | Q1 2026 | |
| 20 | FULLER & THALER ASSET MANAGEMENT, INC. | $45.1M | 806K | ▲+4.9% Added · +38K sh | Q1 2026 | |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $42.9M | 767K | ▲+1.2% Added · +9K sh | Q1 2026 | |
| 22 | NORTHERN TRUST CORP | $41.7M | 747K | ▲+2.4% Added · +17K sh | Q1 2026 | |
| 23 | Polar Capital Holdings Plc | $41.0M | 734K | ▲+12% Added · +76K sh | Q1 2026 | |
| 24 | Rockefeller Capital Management L.P. | $39.3M | 703K | ▲+11% Added · +71K sh | Q1 2026 | |
| 25 | LOOMIS SAYLES & CO L P | $38.4M | 686K | ▼−7.7% Reduced · −57K 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 18, 2026 | SWARTZ DAVID L | Director | Sell (S) | 3K | $145K |
| Jun 16, 2026 | Berger Howard G | President, CEO, Director | Gift (G) | 90 | $0 |
| Jun 16, 2026 | Wesdorp Cornelis | Pres & CEO, Digital Health | Sell (S) | 5K | $276K |
| Jun 15, 2026 | Forthuber Stephen M | Pres & CEO-Eastern Operations | Sell (S) | 24K | $1.4M |
| Jun 15, 2026 | Forthuber Stephen M | Pres & CEO-Eastern Operations | Sell (S) | 20K | $1.2M |
| Jun 2, 2026 | SWARTZ DAVID L | Director | Grant (A) | 3K | $0 |
| Jun 2, 2026 | Levitt Lawrence L | Director | Grant (A) | 3K | $0 |
| Jun 2, 2026 | SPURLOCK GREGORY E. | Director | Grant (A) | 3K | $0 |
| Jun 2, 2026 | Jacobs Laura Pastre | Director | Grant (A) | 3K | $0 |
| May 5, 2026 | Berger Howard G | President, CEO, Director | Option exercise (M) | 26K | $484K |
| May 5, 2026 | Berger Howard G | President, CEO, Director | Option exercise (M) | 26K | $0 |
| Mar 19, 2026 | Sorensen Alma Gregory | Chief Strategy Officer, Director | Sell (S) | 5K | $336K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 124 funds | $53.8B |
| META PLATFORMS INC-CLASS AMETA | 122 funds | $25.7B |
| ALPHABET INC-CL AGOOGL | 120 funds | $34.4B |
| BROADCOM INCAVGO | 120 funds | $27.6B |
| ELI LILLY & COLLY | 120 funds | $14.6B |
| NVIDIA CORPNVDA | 119 funds | $76.2B |
| AMAZON.COM INCAMZN | 118 funds | $43.1B |
| JPMORGAN CHASE & COJPM | 117 funds | $17.5B |
| MASTERCARD INC - AMA | 117 funds | $9.0B |
| ALPHABET INC-CL CGOOG | 116 funds | $25.7B |
| VISA INC-CLASS A SHARESV | 116 funds | $11.7B |
| MICRON TECHNOLOGY INCMU | 116 funds | $8.6B |
Ranked by how many of RDNT'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 RDNT. 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.