Summary
Updated Aug 31, 2026
Donald J. Griffith is Chief Financial Officer, Director of Sonnet BioTherapeutics Holdings, Inc. (SONN). 3 SEC Form 4 filings on record going back to 2024, most recently on 3 December 2025.
Recent Transactions
3Every recent SEC Form 4 transaction Donald J. Griffith has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Donald J. Griffith go back to 2024: 3 primary Form 4 filings, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Sector
No other insider has filed at Donald J. Griffith's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Casdin Partners Master Fund, L.P. - $49.54M of BLFS open-market activity in the last 12 months
- Gary S. Guthart - $48.79M of ISRG open-market activity in the last 12 months
- Robert B. Ford - $48.22M of ABT open-market activity in the last 12 months
- Daniel Patrick O'Day - $47.86M of GILD open-market activity in the last 12 months
- Roger Adsett - $47.51M of INSM open-market activity in the last 12 months
- Bihua Chen - $46.87M of MLTX open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Donald J. Griffith?
Donald J. Griffith is a corporate insider, tracked as Chief Financial Officer, Director of Sonnet BioTherapeutics Holdings, Inc. (SONN). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Donald J. Griffith last file a Form 4?
The most recent primary Form 4 on record is dated 3 December 2025, one of 3 filings going back to 2024.
Where can I see all of Donald J. Griffith'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.
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