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 MKZR 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/MKZR"
Use Arkolith to show who owns MKZR, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Quinn Opportunity Partners LLC | $151K | 41K | —Held | Q1 2026 | |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | $141K | 39K | ▲+84% Added · +18K sh | Q1 2026 | |
| 3 | VANGUARD GROUP INC | $100K | 25K | —Held | Q4 2025 | |
| 4 | CITADEL ADVISORS LLC | $66K | 19K | ▲New +19K sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $60K | 17K | ▲New +17K sh | Q1 2026 | |
| 6 | VANGUARD FIDUCIARY TRUST CO | $28K | 8K | ▲New +8K sh | Q1 2026 | |
| 7 | BlackRock, Inc. | $13K | 4K | —Held | Q1 2026 | |
| 8 | OSAIC HOLDINGS, INC. | $7K | 2K | ▲+50% Added · +598 sh | Q1 2026 | |
| 9 | UBS Group AG | $2K | 479 | ▲New +479 sh | Q1 2026 | |
| 10 | NISA INVESTMENT ADVISORS, LLC | $463 | 130 | —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 |
|---|---|---|---|---|---|
| Feb 24, 2026 | DIXON ROBERT E | CEO/President | Buy (P) | 5K | $18K |
| Nov 26, 2025 | DIXON ROBERT E | CEO/President | Buy (P) | 3K | $12K |
| Nov 24, 2025 | DIXON ROBERT E | CEO/President | Buy (P) | 2K | $8K |
| Nov 21, 2025 | DIXON ROBERT E | CEO/President | Buy (P) | 2K | $7K |
| Oct 3, 2025 | DIXON ROBERT E | CEO/President | Buy (P) | 1K | $5K |
| Oct 3, 2025 | PATTERSON CHARLES E. II | General Counsel/Secretary, Director | Buy (P) | 1K | $5K |
| Oct 3, 2025 | FULLER GLEN W | Treasurer | Buy (P) | 1K | $5K |
| Oct 3, 2025 | Simpson Christine Elizabeth | Chief Portfolio Manager | Buy (P) | 1K | $5K |
| Oct 3, 2025 | Bluth Jeri Ruth | Chief Compliance Officer | Buy (P) | 1K | $5K |
| Oct 3, 2025 | Sherpa Angche | Chief Financial Officer | Buy (P) | 1K | $5K |
| Oct 2, 2025 | FULLER GLEN W | Treasurer | Buy (P) | 4K | $20K |
| Oct 2, 2025 | FULLER GLEN W | Treasurer | Buy (P) | 4K | $20K |
| Company | Co-held by | Combined value |
|---|---|---|
| ISHARES CORE S&P 500 ETFIVV | 3 funds | $13.5B |
| NVIDIA CORPNVDA | 3 funds | $5.4B |
| APPLE INCAAPL | 3 funds | $3.1B |
| MICROSOFT CORPMSFT | 3 funds | $2.5B |
| AMAZON.COM INCAMZN | 3 funds | $2.5B |
| ALPHABET INC-CL AGOOGL | 3 funds | $2.0B |
| META PLATFORMS INC-CLASS AMETA | 3 funds | $1.9B |
| BROADCOM INCAVGO | 3 funds | $1.9B |
| MICRON TECHNOLOGY INCMU | 3 funds | $1.8B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 3 funds | $1.6B |
| ALPHABET INC-CL CGOOG | 3 funds | $1.2B |
| JPMORGAN CHASE & COJPM | 3 funds | $1.2B |
Ranked by how many of MKZR'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 MKZR. 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.