Summary
Updated Aug 31, 2026
Kieran M. O'Sullivan is President & CEO, Director of CTS CORP (CTS). 9 SEC Form 4 filings on record going back to 2024, most recently on 3 June 2026. Most recent open-market trade: sold $1.51M of CTS on 3 June 2026. Lifetime open-market sales: $12.92M.
Recent Transactions
16Every recent SEC Form 4 transaction Kieran M. O'Sullivan has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Kieran M. O'Sullivan go back to 2024: 9 primary Form 4 filings, an average of 3.0 per year. 9 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Kieran M. O'Sullivan 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.
- Ashish Agrawal - $1.32M of CTS 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 Kieran M. O'Sullivan?
Kieran M. O'Sullivan is a corporate insider, tracked as President & CEO, Director of CTS CORP (CTS). InsiderAlpha holds 9 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 Kieran M. O'Sullivan submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Kieran M. O'Sullivan been buying or selling stock?
Recorded transactions: 0 open-market purchases and 9 open-market sales ($12.92M) across all tracked filings.
Where can I see all of Kieran M. O'Sullivan'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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