Jeffrey Matthew Gryga Irrevocable Trust

Overview

• HeadquartersAK¹

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Corporate structure

Jeffrey Matthew Gryga Irrevocable Trust sits at the top of its group. 2 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from major holders from Schedules 13D and 13G; stakes of 5% or more it reported on Schedules 13D and 13G (1 companies). Each entity in the chart links to its source.

Stakes it holds

Jeffrey Matthew Gryga Irrevocable Trust has told the SEC it owns more than 5% of 1 company, latest first (Schedules 13D and 13G).

• Theriva Biologics, Inc.SCHEDULE 13G Nov 10, 2025²