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 MESA 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/MESA"
Use Arkolith to show who owns MESA, which funds added or reduced it, and which SEC filings prove each claim.
Not held in any tracked 13F filing yet.
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 |
|---|---|---|---|---|---|
| Nov 25, 2025 | SKIADOS SPYRIDON | Director | Grant (A) | 1K | $0 |
| Nov 25, 2025 | Schiller Harvey W | Director | Grant (A) | 1K | $0 |
| Nov 25, 2025 | GILLMAN BRIAN S | EVP/GC/Secretary | Grant (A) | 7K | $0 |
| Nov 25, 2025 | GILLMAN BRIAN S | EVP/GC/Secretary | Tax withholding (F) | 593 | $830 |
| Nov 25, 2025 | GORDON MITCHELL I | Director | Grant (A) | 1K | $0 |
| Nov 25, 2025 | LOCKHART DANA J | Director | Grant (A) | 1K | $0 |
| Nov 25, 2025 | LOTZ MICHAEL | President & CFO | Grant (A) | 20K | $0 |
| Nov 25, 2025 | ORNSTEIN JONATHAN G | Chief Executive Officer | Grant (A) | 26K | $0 |
| Nov 25, 2025 | ARTIST ELLEN N. | Director | Grant (A) | 1K | $0 |
| Jun 18, 2025 | GILLMAN BRIAN S | EVP/GC/Secretary | Option exercise (M) | 24K | $0 |
| Jun 18, 2025 | GILLMAN BRIAN S | EVP/GC/Secretary | Option exercise (M) | 24K | $0 |
| Jun 18, 2025 | LOTZ MICHAEL | President & CFO | Option exercise (M) | 69K | $0 |
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MESA. 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.