Portolan Capital Management, LLC's ownership history for ESI

Portolan Capital Management, LLC currently holds 221.2K shares with a market value of $7.6M. It started holding ESI on 2026-03-31. At its peak, it held 221.2K shares on 2026-03-31. Its highest holding value was $7.6M on 2026-03-31. At its lowest, it held 221.2K shares on 2026-03-31, with a value of $7.6M on 2026-03-31.