Filings (90d)
Other insiders active in the same stocks
Insiders who have reported open-market trades at the same companies as Charles McWherter. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- RA CAPITAL MANAGEMENT, L.P. - $27.62M in ETNB purchases and sales on record
- Quoc Le-Nguyen - $342K in ETNB purchases and sales on record
- Rohan Palekar - $123K in ETNB purchases and sales on record
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Charles McWherter?
Charles McWherter is a corporate insider of 89bio, Inc. (ETNB). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Charles McWherter last file a Form 4?
The most recent primary Form 4 on record is dated 30 October 2025, one of 2 filings going back to 2024.
Has Charles McWherter been buying or selling stock?
Recorded transactions: 1 open-market purchase ($80K) and 0 open-market sales across all tracked filings.
