WESTFIELD CAPITAL MANAGEMENT CO LP's ownership history for IONS

WESTFIELD CAPITAL MANAGEMENT CO LP currently holds 3.5K shares with a market value of $263.0K. It started holding IONS on 2025-06-30. At its peak, it held 9.6K shares on 2025-06-30. Its highest holding value was $377.8K on 2025-06-30. At its lowest, it held 3.1K shares on 2025-09-30, with a value of $202.3K on 2025-09-30. In the recent 180 days, WESTFIELD CAPITAL MANAGEMENT CO LP has increased its shares by 409.