Summary
Updated Aug 31, 2026
David Jeffrey Katz is EVP and Chief Legal Officer of RadNet, Inc. (RDNT). 7 SEC Form 4 filings on record going back to 2024, most recently on 5 March 2026. Most recent open-market trade: sold $1.04M of RDNT on 16 September 2025. Lifetime open-market sales: $3.21M.
Recent Transactions
8Every recent SEC Form 4 transaction David Jeffrey Katz has reported, most recent first.
Trading Pattern
InsiderAlpha's records for David Jeffrey Katz go back to 2024: 7 primary Form 4 filings, an average of 2.3 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 Stocks
Insiders who reported open-market trades in the last 12 months at the companies David Jeffrey Katz files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Stephen M. Forthuber - $6.09M of RDNT open-market activity in the last 12 months
- Mital Patel - $3.90M of RDNT open-market activity in the last 12 months
- Mark Stolper - $2.59M of RDNT open-market activity in the last 12 months
- Alma Gregory Sorensen - $1.87M of RDNT open-market activity in the last 12 months
- Norman R. Hames - $727K of RDNT open-market activity in the last 12 months
- Cornelis Wesdorp - $348K of RDNT 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 David Jeffrey Katz?
David Jeffrey Katz is a corporate insider, tracked as EVP and Chief Legal Officer of RadNet, Inc. (RDNT). InsiderAlpha holds 7 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did David Jeffrey Katz last file a Form 4?
The most recent primary Form 4 on record is dated 5 March 2026, one of 7 filings going back to 2024.
Has David Jeffrey Katz been buying or selling stock?
Recorded transactions: 0 open-market purchases and 4 open-market sales ($3.21M) across all tracked filings.
Where can I see all of David Jeffrey Katz'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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