Education
About Us
Working with TipRanks
Follow Us
John D Duke Insider Profile
11 Followers
John D Duke, CEO, Director at Harvard Bioscience, holds 105.00K shares in Harvard Bioscience (Ticker: HBIO). Most recently, John D Duke Bought 5,000 shares of Harvard Bioscience on Mar 17, 2026 for an estimated value of $25.05K.
John D Duke has not reported sufficient informative transactions and therefore cannot be ranked.
Time Frame
Compare to
Insider Roles
CEO, Director
Roles that John D Duke holds in companies
Most Profitable Insider Trade
Currently, no data available
The most profitable trade made by John D Duke
John D Duke's Trading History
List of latest transactions for each holding click on a transaction to see John D Duke's performance on stock
You May Also Like
John D Duke insider profile FAQ
What is the percentage of profitable transactions made by John D Duke?
The percentage of profitable transactions made by John D Duke is ―.
What is the average return per transaction made by John D Duke?
The average return per transaction made by John D Duke is ―.
What stocks does John D Duke hold?
John D Duke holds: HBIO stocks.
What was John D Duke’s latest transaction?
John D Duke latest transaction was an Informative Buy of $25.05K.
What was John D Duke's most profitable transaction?
John D Duke’s most profitable transaction was an Uninformative Buy of stock on ―. The return on the trade was ―.
What is John D Duke's role in Harvard Bioscience?
John D Duke's role in Harvard Bioscience is CEO, Director.
How can I follow the stock ratings of top corporate insiders?
Head over to our Expert Center to see a list of the Top 100 corporate insiders and follow the corporate insiders of your choice. Visit their profiles for more details about their stock transactions and see how they perform on a stock-by-stock basis.