Summary
Updated Aug 30, 2026
Ted William Karkus is CEO CHAIRMAN, Director of ProPhase Labs, Inc. (PRPH). 1 SEC Form 4 filing on record, dated 9 September 2025.
Trading Pattern
InsiderAlpha's records for Ted William Karkus go back to 2025: 1 primary Form 4 filing, an average of 0.5 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 Ted William Karkus's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- RA CAPITAL MANAGEMENT, L.P. - $63.45M of SEPN open-market activity in the last 12 months
- BVF PARTNERS L P - $62.96M of MLTX open-market activity in the last 12 months
- BROADWOOD PARTNERS, L.P. - $62.75M of STAA open-market activity in the last 12 months
- Jonathan M. Rothberg - $62.19M of BFLY open-market activity in the last 12 months
- Jeffrey M. Leiden - $60.94M of VRTX open-market activity in the last 12 months
- Vivek Ramaswamy - $60.40M of ROIV 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 Ted William Karkus?
Ted William Karkus is a corporate insider, tracked as CEO CHAIRMAN, Director of ProPhase Labs, Inc. (PRPH). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Ted William Karkus last file a Form 4?
The only primary Form 4 on record is dated 9 September 2025.
Where can I see all of Ted William Karkus'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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