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 BLACKROCK MUNIVEST FUND, INC. 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/MVF"
Use Arkolith to show who owns BLACKROCK MUNIVEST FUND, INC., 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 |
|---|---|---|---|---|---|
| Feb 23, 2026 | KALINOSKI MICHAEL | Director | Other (J) | 2 | $17 |
| Feb 23, 2026 | Soccio Phillip | Insider | Other (J) | 174 | $1K |
| Feb 23, 2026 | TORONTO DOMINION BANK | 10% Owner | Other (J) | 2K | — |
| Feb 19, 2026 | JPMORGAN CHASE & CO | 10% Owner | Sell (S) | 2K | — |
| Jan 30, 2026 | Soccio Phillip | Insider | Disposed to issuer (D) | 87 | $609 |
| Jan 30, 2026 | Soccio Phillip | Insider | Option exercise (M) | 87 | — |
| Jan 30, 2026 | Soccio Phillip | Insider | Option exercise (M) | 87 | — |
| Jul 28, 2025 | Soccio Phillip | Insider | Sell (S) | 6K | $36K |
| Jan 31, 2025 | Soccio Phillip | Insider | Grant (A) | 248 | $2K |
| Dec 20, 2023 | JPMorgan Chase Bank, N.A. | 10% Owner | Other (J) | 2K | — |
| Nov 24, 2023 | JPMorgan Chase Bank, N.A. | 10% Owner | Other (J) | 902 | — |
| Oct 10, 2022 | KALINOSKI MICHAEL | Insider | Sell (S) | 6K | $38K |
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MVF. 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.