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Stavros G. Vizirgianakis

I. Basics

Stavros G. Vizirgianakis is a seasoned medical device executive turned investor and activist. With a foundational career in Africa’s med-tech industry, he rose to CEO at Misonix before transitioning into board leadership at companies such as Xtant, Apyx, Medinotec, Tally Surgical, and Theragenics. He is an active activist investor—filing Schedule 13D for strategic stakes in Apyx (~5%) and Medinotec (~40%)—and has successfully placed directors using governance tools like universal proxy. A Commerce graduate from South Africa, Vizirgianakis channels deep industry experience into governance activism within small-cap medical device companies.

II. Letters & Presentations

Nil

III. Significant companies
Below is a list of company engagements where the filer has filed a Schedule 13D and/or engaged in a proxy campaign. As the filer does not file a Form 13F, current ownership information is not available.
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