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/RNTX/capital-change-brief"
Use Arkolith's capital_change_brief for RNTX. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Voss Capital, LP | $5.7M | 4.4M | ▲+3.4% Added · +144K sh | Q1 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $1.3M | 999K | ▲New +999K sh | Q1 2026 | |
| 3 | Cable Car Capital, LP | $546K | 420K | —Held | Q1 2026 | |
| 4 | Prosight Management, LP | $535K | 412K | ▼−7.0% Reduced · −31K sh | Q1 2026 | |
| 5 | Sigma Planning Corp | $453K | 349K | ▲+41% Added · +101K sh | Q1 2026 | |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | $448K | 345K | ▲+21% Added · +60K sh | Q1 2026 | |
| 7 | Texas Capital Bank Wealth Management Services Inc | $356K | 274K | ▲+4.4% Added · +12K sh | Q1 2026 | |
| 8 | Senvest Management, LLC | $300K | 231K | —Held | Q1 2026 | |
| 9 | Palogic Value Management, L.P. | $234K | 180K | ▲New +180K sh | Q1 2026 | |
| 10 | VANGUARD FIDUCIARY TRUST CO | $201K | 155K | ▲New +155K sh | Q1 2026 | |
| 11 | ABS Direct Equity Fund LLC | $163K | 125K | —Held | Q1 2026 | |
| 12 | STATE STREET CORP | $99K | 76K | —Held | Q1 2026 | |
| 13 | BlackRock, Inc. | $89K | 69K | ▲+25% Added · +14K sh | Q1 2026 | |
| 14 | NORTHERN TRUST CORP | $83K | 64K | ▲+58% Added · +24K sh | Q1 2026 | |
| 15 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $55K | 42K | —Held | Q1 2026 | |
| 16 | Chicago Partners Investment Group LLC | $77K | 41K | ▲+32% Added · +10K sh | Q1 2026 | |
| 17 | MERCER GLOBAL ADVISORS INC /ADV | $46K | 35K | ▲+97% Added · +18K sh | Q1 2026 | |
| 18 | SteelPeak Wealth, LLC | $34K | 33K | ▲+154% Added · +20K sh | Q2 2026 | |
| 19 | XTX Topco Ltd | $43K | 33K | ▲New +33K sh | Q1 2026 | |
| 20 | TWO SIGMA SECURITIES, LLC | $41K | 32K | ▲+84% Added · +14K sh | Q1 2026 | |
| 21 | EXENCIAL WEALTH ADVISORS, LLC | $40K | 31K | ▲New +31K sh | Q1 2026 | |
| 22 | Americana Partners, LLC | $35K | 27K | ▲+58% Added · +10K sh | Q1 2026 | |
| 23 | RENAISSANCE TECHNOLOGIES LLC | $32K | 25K | ▲+7.9% Added · +2K sh | Q1 2026 | |
| 24 | Gleason Group, Inc. | $23K | 22K | —Held | Q2 2026 | |
| 25 | Ancora Advisors LLC | $26K | 20K | —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 |
|---|---|---|---|---|---|
| May 27, 2026 | VON RICKENBACH JOSEF H | Director | Buy (P) | 5K | $5K |
| May 26, 2026 | VON RICKENBACH JOSEF H | Director | Buy (P) | 23K | $24K |
| May 22, 2026 | VON RICKENBACH JOSEF H | Director | Buy (P) | 16K | $17K |
| May 21, 2026 | VON RICKENBACH JOSEF H | Director | Buy (P) | 3K | $4K |
| May 8, 2026 | WINDSOR JAMES BRIAN | See Remarks, Director | Grant (A) | 150K | $0 |
| Apr 30, 2026 | WINDSOR JAMES BRIAN | See Remarks, Director | Buy (P) | 25K | $25K |
| Nov 14, 2025 | Voss Value Master Fund, LP | 10% Owner | Buy (P) | 104K | $127K |
| Oct 28, 2025 | Voss Value-Oriented Special Situations Fund, LP | 10% Owner | Buy (P) | 178K | $248K |
| Oct 27, 2025 | Voss Value-Oriented Special Situations Fund, LP | 10% Owner | Buy (P) | 93K | $127K |
| Oct 27, 2025 | Voss Value-Oriented Special Situations Fund, LP | 10% Owner | Buy (P) | 5K | $7K |
| Oct 24, 2025 | Voss Value-Oriented Special Situations Fund, LP | 10% Owner | Buy (P) | 30K | $42K |
| Jul 23, 2025 | Ambros Reinhard J. | Director | Grant (A) | 18K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICRON TECHNOLOGY INCMU | 11 funds | $1.7B |
| INTEL CORPINTC | 11 funds | $348.8M |
| NVIDIA CORPNVDA | 10 funds | $5.6B |
| APPLE INCAAPL | 10 funds | $4.1B |
| ISHARES CORE S&P 500 ETFIVV | 10 funds | $3.8B |
| MICROSOFT CORPMSFT | 10 funds | $3.5B |
| AMAZON.COM INCAMZN | 10 funds | $3.4B |
| SS SPDR S&P 500 ETF TRUST-USSPY | 10 funds | $2.5B |
| ALPHABET INC-CL AGOOGL | 10 funds | $2.4B |
| BROADCOM INCAVGO | 10 funds | $2.3B |
| META PLATFORMS INC-CLASS AMETA | 10 funds | $1.9B |
| JPMORGAN CHASE & COJPM | 10 funds | $1.7B |
Ranked by how many of RNTX'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 RNTX. 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.