WESTFIELD CAPITAL MANAGEMENT CO LP's ownership history for AMGN

WESTFIELD CAPITAL MANAGEMENT CO LP currently holds 17.1K shares with a market value of $6.0M. It started holding AMGN on 2026-03-31. At its peak, it held 17.1K shares on 2026-03-31. Its highest holding value was $6.0M on 2026-03-31. At its lowest, it held 17.1K shares on 2026-03-31, with a value of $6.0M on 2026-03-31.