Sigma Planning Corp's ownership history for ATI

Sigma Planning Corp currently holds 10.5K shares with a market value of $1.5M. It started holding ATI on 2026-03-31. At its peak, it held 10.5K shares on 2026-03-31. Its highest holding value was $1.5M on 2026-03-31. At its lowest, it held 10.5K shares on 2026-03-31, with a value of $1.5M on 2026-03-31.