Marcia Belvin
SVP, Chief Scientific Officer · CytomX Therapeutics, Inc.
- 2025
- Mar 19, 2026
- 3
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Marcia Belvin 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 in CTMX purchases and sales in the last 12 months
- Yu-Waye Chu - $137K in CTMX purchases and sales in the last 12 months
- Christopher Ogden - $129K in CTMX purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Marcia Belvin?
Marcia Belvin is a corporate insider, tracked as SVP, Chief Scientific 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 Marcia Belvin 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 Marcia Belvin been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($202K) across all tracked filings.
