Michael P. Tarnok
Director, KERYX BIOPHARMACEUTICALS INC.
Companies
- Ionetix Corp / DE /Board member Jul 27, 2026 to now1
- DYADIC INTERNATIONAL INCBoard member Feb 13, 2019 to now2
Holdings
Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.
Shares held
- DYADIC INTERNATIONAL INC DYAI281,033 shares3$108.2K at $0.39Jun 20, 2025
- Ionetix Corp / DE /331,242 shares4Jul 27, 2026
As of each latest filing. The line shows shares held over time.
Recent filings
- Jun 20, 2025Exercised options 10,776 shares of DYADIC INTERNATIONAL INC3
- Jan 2, 2025Exercised options 23,585 shares of DYADIC INTERNATIONAL INC5
- Nov 22, 2024Exercised options 18,750 shares at $0.97 of DYADIC INTERNATIONAL INC6
- Nov 22, 2024Exercised options 6,250 shares at $0.97 of DYADIC INTERNATIONAL INC6
- May 21, 2024Shares withheld for tax 24,431 shares at $1.67 of DYADIC INTERNATIONAL INC7
- May 21, 2024Exercised options 16,875 shares at $1.36 of DYADIC INTERNATIONAL INC7
- May 21, 2024Exercised options 5,625 shares at $1.36 of DYADIC INTERNATIONAL INC7
- May 21, 2024Exercised options 7,500 shares at $1.36 of DYADIC INTERNATIONAL INC7
- Jan 3, 2024Exercised options 27,174 shares of DYADIC INTERNATIONAL INC8
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1SEC EDGARIonetix Corp / DE /, Board member
- 2
- 3
- 4
- 5SEC EDGARForm 4 filed Jan 7, 2025
- 6SEC EDGARForm 4 filed Nov 25, 2024
- 7SEC EDGARForm 4 filed May 23, 2024
- 8SEC EDGARForm 4 filed Jan 4, 2024