Duke John D

Duke John D is listed in filings as Chief Executive Officer at Harvard Bioscience, Inc.. This profile follows SEC Form 4 activity through Mar 23, 2026, including purchase activity. Recent filings connect the profile to Harvard Bioscience, Inc. (HBIO). The current snapshot covers public activity from Aug 11, 2025 to Mar 23, 2026. Reported amounts are shown as $25.1K. The page organizes purchases, sales, issuer links, reported share activity, and filing evidence for review as public disclosure data.