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 MXC 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/MXC"
Use Arkolith to show who owns MXC, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | FIRST MANHATTAN CO. LLC. | $416K | 41K | ▲New +41K sh | Q1 2026 | |
| 2 | VANGUARD FIDUCIARY TRUST CO | $66K | 6K | ▲New +6K sh | Q1 2026 | |
| 3 | NewEdge Advisors, LLC | $225 | 22 | —Held | Q1 2026 | |
| 4 | SBI Securities Co., Ltd. | $102 | 10 | —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 5, 2026 | DECKER THOMAS H | Director | Sell (S) | 3K | $34K |
| Mar 5, 2026 | DECKER THOMAS H | Director | Sell (S) | 3K | $37K |
| Apr 15, 2024 | Hardin Stacy D. | SECRETARY | Option exercise (X) | 351 | $1K |
| Apr 15, 2024 | Hardin Stacy D. | SECRETARY | Grant (A) | 147 | $1K |
| Apr 15, 2024 | Hardin Stacy D. | SECRETARY | Option exercise (M) | 351 | $1K |
| Apr 15, 2024 | MCCOMIC TAMMY | PRESIDENT | Option exercise (M) | 147 | $1K |
| Apr 15, 2024 | MCCOMIC TAMMY | PRESIDENT | Sell (S) | 147 | $2K |
| Apr 15, 2024 | MCCOMIC TAMMY | PRESIDENT | Grant (A) | 147 | $1K |
| Apr 15, 2024 | MCCOMIC TAMMY | PRESIDENT | Option exercise (M) | 1K | $5K |
| Apr 15, 2024 | Hardin Stacy D. | SECRETARY | Option exercise (M) | 147 | $1K |
| Apr 15, 2024 | Hardin Stacy D. | SECRETARY | Sell (S) | 147 | $2K |
| Apr 15, 2024 | MCCOMIC TAMMY | PRESIDENT | Option exercise (X) | 1K | $5K |
| Company | Co-held by | Combined value |
|---|---|---|
| APPLE INCAAPL | 8 funds | $21.2B |
| MICROSOFT CORPMSFT | 8 funds | $15.1B |
| AMAZON.COM INCAMZN | 8 funds | $10.0B |
| JPMORGAN CHASE & COJPM | 8 funds | $9.5B |
| EXXON MOBIL CORPXOM | 8 funds | $9.4B |
| META PLATFORMS INC-CLASS AMETA | 8 funds | $8.7B |
| JOHNSON & JOHNSONJNJ | 8 funds | $8.6B |
| ALPHABET INC-CL CGOOG | 8 funds | $8.2B |
| ALPHABET INC-CL AGOOGL | 8 funds | $8.2B |
| VISA INC-CLASS A SHARESV | 8 funds | $7.7B |
| AT&T INCT | 8 funds | $6.6B |
| PFIZER INCPFE | 8 funds | $6.3B |
Ranked by how many of MXC'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 MXC. 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.