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 MX 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/MX"
Use Arkolith to show who owns MX, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD PORTFOLIO MANAGEMENT LLC | $671K | 240K | ▲New +240K sh | Q1 2026 | |
| 2 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $655K | 234K | ▼−43% Reduced · −175K sh | Q1 2026 | |
| 3 | VANGUARD GROUP INC | $611K | 240K | ▼−77% Reduced · −790K sh | Q4 2025 | |
| 4 | ODDO BHF ASSET MANAGEMENT SAS | $602K | 215K | —Held | Q1 2026 | |
| 5 | BlackRock, Inc. | $584K | 209K | —Held | Q1 2026 | |
| 6 | BOOTHBAY FUND MANAGEMENT, LLC | $580K | 207K | ▲+667% Added · +180K sh | Q1 2026 | |
| 7 | Steward Partners Investment Advisory, LLC | $552K | 197K | ▲+0.5% Added · +950 sh | Q1 2026 | |
| 8 | FAIRFAX FINANCIAL HOLDINGS LTD/ CAN | $349K | 125K | —Held | Q1 2026 | |
| 9 | Connor, Clark & Lunn Investment Management Ltd. | $271K | 97K | ▲New +97K sh | Q1 2026 | |
| 10 | Point72 Asset Management, L.P. | $264K | 94K | ▲+48% Added · +31K sh | Q1 2026 | |
| 11 | CITADEL ADVISORS LLC | $247K | 88K | ▲Added Added · +88K sh | Q1 2026 | |
| 12 | Eurizon Capital SGR S.p.A. | $192K | 71K | ▲+4.1% Added · +3K sh | Q1 2026 | |
| 13 | Centiva Capital, LP | $121K | 43K | ▼−39% Reduced · −28K sh | Q1 2026 | |
| 14 | STATE STREET CORP | $80K | 28K | ▲+2.1% Added · +584 sh | Q1 2026 | |
| 15 | Federation des caisses Desjardins du Quebec | $69K | 24K | —Held | Q1 2026 | |
| 16 | GROUP ONE TRADING LLC | $66K | 24K | ▲+97% Added · +12K sh | Q1 2026 | |
| 17 | Quadrature Capital Ltd | $54K | 19K | ▼−22% Reduced · −5K sh | Q1 2026 | |
| 18 | SBI Securities Co., Ltd. | $3K | 1K | ▼−1.4% Reduced · −15 sh | Q1 2026 | |
| 19 | SALEM INVESTMENT COUNSELORS INC | $840 | 300 | ▲New +300 sh | Q1 2026 | |
| 20 | FMR LLC | $104 | 37 | —Held | Q1 2026 | |
| 21 | CWM, LLC | $42 | 15 | —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 |
|---|---|---|---|---|---|
| Mar 16, 2026 | NATHAN GILBERT E | Director | Buy (P) | 22K | $63K |
| Mar 13, 2026 | NATHAN GILBERT E | Director | Buy (P) | 13K | $36K |
| Mar 12, 2026 | NATHAN GILBERT E | Director | Buy (P) | 25K | $69K |
| Feb 15, 2026 | Amoruso Cristiano | Director | Grant (A) | 29K | $0 |
| Feb 15, 2026 | Chung Kyo-Hwa Liz | Director | Grant (A) | 3K | $0 |
| Feb 15, 2026 | NATHAN GILBERT E | Director | Grant (A) | 1K | $0 |
| Dec 31, 2025 | Lee Seunghoon | See Remarks | Tax withholding (F) | 3K | $8K |
| Dec 31, 2025 | Park Shin Young | See Remarks | Tax withholding (F) | 6K | $16K |
| Dec 31, 2025 | Lee Seunghoon | See Remarks | Tax withholding (F) | 3K | $7K |
| Dec 31, 2025 | Lee Seunghoon | See Remarks | Tax withholding (F) | 5K | $12K |
| Dec 31, 2025 | Lee Seunghoon | See Remarks | Tax withholding (F) | 5K | $12K |
| Dec 31, 2025 | Park Shin Young | See Remarks | Tax withholding (F) | 12K | $31K |
| Company | Co-held by | Combined value |
|---|---|---|
| GENERAL MOTORS COGM | 17 funds | $249.5M |
| MICROSOFT CORPMSFT | 16 funds | $5.7B |
| BROADCOM INCAVGO | 16 funds | $3.9B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 16 funds | $2.7B |
| COSTCO WHOLESALE CORPCOST | 16 funds | $1.6B |
| ELI LILLY & COLLY | 16 funds | $1.5B |
| BANK OF AMERICA CORPBAC | 16 funds | $1.1B |
| ORACLE CORPORCL | 16 funds | $913.7M |
| PALANTIR TECHNOLOGIES INC-APLTR | 16 funds | $856.1M |
| CARDINAL HEALTH INCCAH | 16 funds | $646.5M |
| SCHWAB (CHARLES) CORPSCHW | 16 funds | $576.3M |
| US BANCORPUSB | 16 funds | $498.3M |
Ranked by how many of MX'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 MX. 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.