Insiders who reported open-market trades in the last 12 months at the companies Stephanie Monaghan O'Brien 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.
Cedric Francois - $980K in APLS purchases and sales in the last 12 months
David O. Watson - $697K in APLS purchases and sales in the last 12 months
Stephanie Monaghan O'Brien is a corporate insider of Apellis Pharmaceuticals, Inc. (APLS). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Stephanie Monaghan O'Brien last file a Form 4?
The most recent primary Form 4 on record is dated 14 May 2026, one of 3 filings going back to 2026.
Stephanie Monaghan O'Brien files SEC Form 4 reports at Apellis Pharmaceuticals, Inc. (APLS). 3 SEC Form 4 filings on record, most recently on 14 May 2026.
Recent transactions
9
The latest 9 SEC Form 4 transactions reported by Stephanie Monaghan O'Brien.
InsiderAlpha's records for Stephanie Monaghan O'Brien go back to 2026: 3 primary Form 4 filings, an average of 3.0 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
