Summary
Updated Aug 30, 2026
Yu-Waye Chu is Chief Medical Officer of CytomX Therapeutics, Inc. (CTMX). 3 SEC Form 4 filings on record going back to 2025, most recently on 19 March 2026. Most recent open-market trade: sold $137K of CTMX on 19 March 2026. Lifetime open-market sales: $137K.
Recent Transactions
2Every recent SEC Form 4 transaction Yu-Waye Chu has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Yu-Waye Chu 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.
- Sean A. McCarthy - $1.23M of CTMX open-market activity in the last 12 months
- Marcia Belvin - $202K of CTMX open-market activity in the last 12 months
- Christopher Ogden - $129K of CTMX 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 Yu-Waye Chu?
Yu-Waye Chu is a corporate insider, tracked as Chief Medical Officer of CytomX Therapeutics, Inc. (CTMX). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Yu-Waye Chu last file a Form 4?
The most recent primary Form 4 on record is dated 19 March 2026, one of 3 filings going back to 2025.
Has Yu-Waye Chu been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($137K) across all tracked filings.
Where can I see all of Yu-Waye Chu'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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