Duke John D — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

Duke John D is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market purchases: $25K.

Profile

Duke John D

John D. Duke is the Chief Executive Officer and Director of Harvard Bioscience Inc, a company focused on developing technologies and products for life sciences research. He has been involved in the company's strategic direction and operations, contributing to its growth in the scientific instruments market.

RoleChief Executive Officer, Director
Notability30/100

Board memberships

Awards & honors

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-03-23HBIOHARVARD BIOSCIENCE INCA — Grant or award75.0K$0.00
2026-03-17HBIOHARVARD BIOSCIENCE INCP — Open-market purchase5.0K$5.01$25K
2025-08-08HBIOHARVARD BIOSCIENCE INCA — Grant or award500.0K$0.00
2025-08-08HBIOHARVARD BIOSCIENCE INCA — Grant or award500.0K$0.00

Frequently Asked Questions

Who is Duke John D?

John D. Duke is the Chief Executive Officer and Director of Harvard Bioscience Inc, a company focused on developing technologies and products for life sciences research. He has been involved in the company's strategic direction and operations, contributing to its growth in the scientific instruments market.…

Has Duke John D been buying or selling stock?

Recorded transactions: 1 open-market purchases ($25K) and 0 open-market sales () across all tracked filings.

Where can I see all of Duke John D's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

Learn More

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