Summary
Updated Aug 31, 2026
Jeffrey Hessekiel is Chief Legal & Admin Officer of CYTOKINETICS INC (CYTK). 6 SEC Form 4 filings on record going back to 2024, most recently on 17 March 2026. Most recent open-market trade: sold $2.20M of EXEL on 2 December 2024. Lifetime open-market sales: $4.62M.
Recent Transactions
9Every recent SEC Form 4 transaction Jeffrey Hessekiel has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Jeffrey Hessekiel go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. 2 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 Jeffrey Hessekiel 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.
- Andrew Callos - $10.31M of CYTK open-market activity in the last 12 months
- Robert I. Blum - $9.70M of CYTK open-market activity in the last 12 months
- Dana Aftab - $7.70M of EXEL open-market activity in the last 12 months
- Patrick J. Haley - $7.60M of EXEL open-market activity in the last 12 months
- Julie Smith - $4.69M of EXEL open-market activity in the last 12 months
- Jack L. Wyszomierski - $4.58M of EXEL 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 Jeffrey Hessekiel?
Jeffrey Hessekiel is a corporate insider, tracked as Chief Legal & Admin Officer of CYTOKINETICS INC (CYTK). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Jeffrey Hessekiel last file a Form 4?
The most recent primary Form 4 on record is dated 17 March 2026, one of 6 filings going back to 2024.
Has Jeffrey Hessekiel been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($4.62M) across all tracked filings.
Where can I see all of Jeffrey Hessekiel'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.
Learn More
Follow Jeffrey Hessekiel and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial