Updated Jul 16, 2026
McCarthy Sean A. is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market sales: $764K.

Sean A. McCarthy is the CEO of CytomX Therapeutics, Inc., a clinical-stage biopharmaceutical company focused on developing innovative cancer therapies. He has significant experience in the biotechnology sector, particularly in oncology and drug development.
| Role | Insider |
|---|---|
| Notability | 50/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-19 | CTMX | CytomX Therapeutics, Inc. | S — Open-market sale | 119.0K | $6.42 | $764K |
| 2026-02-04 | CTMX | CytomX Therapeutics, Inc. | A — Grant or award | 210.0K | $0.00 |
Sean A. McCarthy is the CEO of CytomX Therapeutics, Inc., a clinical-stage biopharmaceutical company focused on developing innovative cancer therapies. He has significant experience in the biotechnology sector, particularly in oncology and drug development.…
Recorded transactions: 0 open-market purchases () and 1 open-market sales ($764K) across all tracked 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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