Quick Takeaways
- Henderson John T. has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $4,964,333.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of Henderson John T.
- Location
- South San Francisco, CA
- Summary
- The estimated net worth of Henderson John T. is at least $4,964,333 dollars as of 15 Apr 2026. Henderson John T. is the Director of CYTOKINETICS INC and owns shares of CYTOKINETICS INC (CYTK) stock worth about $4.96M.
- Signature
- /s/ John O. Faurescu, attorney-in-fact for Dr. Henderson
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Henderson John T. and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: CYTOKINETICS INC ($4,964,333).
- Past-year value change for that position: -$559,125.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Henderson John T.
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| CYTK | CYTOKINETICS INC | Director | $4,964,333 | -$559,125 | -10% | 15 Apr 2026 |
Insider Transactions Reported by Henderson John T.:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.