Summary
Updated Aug 31, 2026
John L. Sykes files SEC Form 4 reports at Sphere Entertainment Co. (SPHR). 2 SEC Form 4 filings on record going back to 2024, most recently on 12 June 2026.
Trading Pattern
InsiderAlpha's records for John L. Sykes go back to 2024: 2 primary Form 4 filings, an average of 0.7 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 John L. Sykes's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- R. Andrew Clyde - $15.63M of MUSA open-market activity in the last 12 months
- John W. Swygert - $15.50M of OLLI open-market activity in the last 12 months
- John Hopmans - $15.46M of LYV open-market activity in the last 12 months
- Darren M. Rebelez - $15.23M of CASY open-market activity in the last 12 months
- Mark S. Shapiro - $15.15M of TKO open-market activity in the last 12 months
- Joshua Kobza - $15.01M of QSR 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 John L. Sykes?
John L. Sykes is a corporate insider of Sphere Entertainment Co. (SPHR). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has John L. Sykes submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of John L. Sykes'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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