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 PRPH 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/PRPH"
Use Arkolith to show who owns PRPH, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $24K | 53K | ▼−90% Reduced · −479K sh | Q4 2025 | |
| 2 | Farther Finance Advisors, LLC | $1 | 10 | ▲+11% Added · +1 sh | Q1 2026 | |
| 3 | CoreCap Advisors, LLC | $1 | 10 | ▼−99% Reduced · −710 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 |
|---|---|---|---|---|---|
| Sep 9, 2025 | Karkus Ted William | CEO & CHAIRMAN, Director | Grant (A) | 500K | $0 |
| Feb 17, 2025 | Hollenshead Stuart | Chief Operating Officer | Grant (A) | 500K | $0 |
| Feb 14, 2025 | GLECKEL LOUIS MD | Director | Grant (A) | 100K | $0 |
| Feb 14, 2025 | Hirsch Warren | Director | Grant (A) | 100K | $0 |
| Mar 17, 2024 | Karkus Ted William | CEO & CHAIRMAN, Director, 10% Owner | Grant (A) | 400K | $0 |
| Mar 17, 2024 | Barr Jason Michael | Director | Grant (A) | 70K | $0 |
| Mar 17, 2024 | GLECKEL LOUIS MD | Director | Grant (A) | 70K | $0 |
| Mar 17, 2024 | Hirsch Warren | Director | Grant (A) | 70K | $0 |
| Jan 1, 2024 | Latkin Jed | Director | Grant (A) | 500K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 13 funds | $194.2B |
| APPLE INCAAPL | 13 funds | $181.1B |
| MICROSOFT CORPMSFT | 13 funds | $144.9B |
| SS SPDR S&P 500 ETF TRUST-USSPY | 13 funds | $105.7B |
| AMAZON.COM INCAMZN | 13 funds | $104.7B |
| ALPHABET INC-CL AGOOGL | 13 funds | $90.9B |
| BROADCOM INCAVGO | 13 funds | $86.5B |
| ALPHABET INC-CL CGOOG | 13 funds | $74.2B |
| META PLATFORMS INC-CLASS AMETA | 13 funds | $72.7B |
| ELI LILLY & COLLY | 13 funds | $44.9B |
| EXXON MOBIL CORPXOM | 13 funds | $44.8B |
| TESLA INCTSLA | 13 funds | $42.3B |
Ranked by how many of PRPH'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 PRPH. 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.