Pompey was released from the Angels' Triple-A affiliate earlier this week, according to MiLB.com's transaction logs.
Pompey hit well during his time with Triple-A Salt Lake, slashing .367/.457/.467 over 35 plate appearances. However, the organization decided to part ways with him. Pompey last saw major-league action in 2018, when he logged 10 at-bats with Toronto.