John D Duke insider trades

Open-market stock purchases and sales by John D Duke, Chief Executive Officer at Harvard Bioscience Inc, from SEC Form 4 filings since Aug 8, 2025.

Track record: 100% of 1 scored buy are up 5% or more since purchase, averaging +24%.

Recent trades

DateStockTradeValue
Mar 20, 2026HBIO Harvard Bioscience IncBought (not open market)—
Mar 16, 2026HBIO Harvard Bioscience IncBought$25.1K

Companies traded

  • HBIO Harvard Bioscience Inc: 1 buy, last Mar 20, 2026

Get free alerts when John D Duke files a new trade →