John D. Duke
Known title: Chief Executive OfficerCIK: 0002071593
John D. Duke's purchase track record
John D. Duke has only 1 open-market purchase with a full 6 months of price history after it -- too few to call a track record yet.
| Purchase | Stock | Amount | 3 months | 6 months | S&P 500, 6 mo. |
|---|---|---|---|---|---|
| 3/16/2026 | HBIO | $25K | +19.6% | +61.5% | +13.7% |
Computed by MarketWall from SEC Form 4 filings and daily closing prices (close on the purchase date to the close about 3 and 6 months later). Companies that have since delisted are not included. Past results, not investment advice.
Associated companies
Transaction History
| HBIO | ▲ Buy | Grant | 75,000 | $0 | 3/20/2026 | View on chart |
| HBIO | ▲ Buy | Open Market | 5,000 | $25K | 3/16/2026 | View on chart |
| HBIO | ▲ Buy | Grant | 500,000 | $0 | 8/8/2025 | View on chart |
| HBIO | ▲ Buy | Grant | 500,000 | $0 | 8/8/2025 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 7, 2026
Harvard Bioscience Forms Scientific Advisory Board
Harvard Bioscience announced the creation of a Scientific Advisory Board. This move is intended to support the company's scientific direction and product development. The stock is currently trading with a high beta, indicating higher volatility relative to the broader market.
Harvard Bioscience Forms Scientific Advisory Board. Harvard Bioscience announced the creation of a Scientific Advisory Board. This move is intended to support the company's scientific direction and product development. The stock is currently trading with a high beta, indicating higher volatility relative to the broader market.