InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
ExecutiveDisclosed buys
0
Disclosed sells
0
T+90 hit rate
60%
T+90 mean return
+16.0%
Across 5 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the full record of transactions filed by O'Brien Stephanie Monaghan, Director. Officer active across 2 companies, notably Apellis Pharmaceuticals, Inc.. Aggregated, 7 disclosures have been logged. Activity tracked since 1 January 2022. The latest transaction was filed on 1 January 2025 (Attribution). Regulator: SEC (Form 4). All data is accessible without signup.
Declarations7 total
25,666 sharesCommon StockSEC:0001193125-26-224592
25,666 sharesCommon StockSEC:0001193125-26-224592:0
6,267 shares0Common StockSEC:0001127602-25-000440:0
3,341 shares0Common StockSEC:0001127602-24-000118:0
3,867 shares0Common StockSEC:0000899243-23-000672:0
4,230 shares0Common StockSEC:0001127602-22-000497
4,230 shares0Common StockSEC:0001127602-22-000497:0
7 of 7 declarations
About O'Brien Stephanie Monaghan
Stephanie Monaghan O'Brien is a Director at Apellis Pharmaceuticals, Inc. She brings expertise in management and business strategy to the board. Her role is essential in guiding strategic decisions and ensuring the sustainable growth of the company.
