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 QRHC 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/QRHC"
Use Arkolith to show who owns QRHC, 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 | $1.5M | 793K | ▲+0.9% Added · +7K sh | Q4 2025 | |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | $233K | 196K | ▲+19% Added · +31K sh | Q1 2026 | |
| 3 | VANGUARD FIDUCIARY TRUST CO | $99K | 84K | ▲New +84K sh | Q1 2026 | |
| 4 | BlackRock, Inc. | $77K | 65K | ▲+5.0% Added · +3K sh | Q1 2026 | |
| 5 | STATE STREET CORP | $62K | 52K | —Held | Q1 2026 | |
| 6 | Cresset Asset Management, LLC | $20K | 17K | —Held | Q1 2026 | |
| 7 | Centiva Capital, LP | $13K | 11K | ▲New +11K sh | Q1 2026 | |
| 8 | TD Waterhouse Canada Inc. | $2K | 2K | —Held | Q1 2026 | |
| 9 | SBI Securities Co., Ltd. | $245 | 206 | ▼−88% Reduced · −2K sh | Q1 2026 | |
| 10 | CWM, LLC | $65 | 55 | ▼−6.8% Reduced · −4 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 |
|---|---|---|---|---|---|
| Mar 19, 2026 | Hampstead Park Capital Management, LLC | 10% Owner | Buy (P) | 9K | $7K |
| Mar 18, 2026 | Lipstein Robert J | Director | Buy (P) | 11K | $10K |
| Mar 16, 2026 | Culpepper Glenn | Director | Buy (P) | 5K | $6K |
| Mar 12, 2026 | Moss Perry W. | President and CEO | Tax withholding (F) | 25K | $36K |
| Feb 28, 2026 | Nolan Stephen A | Director | Grant (A) | 2K | $3K |
| Feb 28, 2026 | Tomolonius Sarah | Director | Grant (A) | 2K | $3K |
| Feb 28, 2026 | FRIEDBERG DANIEL M. | Director, 10% Owner | Grant (A) | 9K | $15K |
| Jan 31, 2026 | Tomolonius Sarah | Director | Grant (A) | 2K | $3K |
| Jan 31, 2026 | Nolan Stephen A | Director | Grant (A) | 2K | $3K |
| Jan 31, 2026 | Hampstead Park Capital Management, LLC | 10% Owner | Grant (A) | 7K | $15K |
| Dec 31, 2025 | Nolan Stephen A | Director | Grant (A) | 2K | $3K |
| Dec 31, 2025 | Tomolonius Sarah | Director | Grant (A) | 2K | $3K |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 6 funds | $5.5B |
| APPLE INCAAPL | 6 funds | $3.7B |
| AMAZON.COM INCAMZN | 6 funds | $2.8B |
| MICROSOFT CORPMSFT | 6 funds | $2.5B |
| ALPHABET INC-CL AGOOGL | 6 funds | $2.0B |
| META PLATFORMS INC-CLASS AMETA | 6 funds | $1.9B |
| MICRON TECHNOLOGY INCMU | 6 funds | $1.7B |
| BROADCOM INCAVGO | 6 funds | $1.6B |
| JPMORGAN CHASE & COJPM | 6 funds | $1.5B |
| ALPHABET INC-CL CGOOG | 6 funds | $1.5B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 6 funds | $1.5B |
| TESLA INCTSLA | 6 funds | $1.2B |
Ranked by how many of QRHC'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 QRHC. 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.