Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Discover the detailed record of transactions filed by Zimmerly Ronald Len Jr.. Director active across 1 company, notably Middlefield Banc CORP. Aggregated, 11 filings have been logged. Split: 4 buys · 0 sell. Total volume traded: €63k. History available since 3 January 2023. The latest transaction was filed on 1 January 2025 (Attribution). Regulator: SEC (Form 4). The full history is free.