The Angels outrighted Hiura to Triple-A Salt Lake on Saturday.
Hiura will remain within the Angels organization after being designated for assignment earlier this week and clearing waivers. Across his 19 games in Salt Lake this season, Hiura is slashing .360/.429/.853 with 12 home runs and 21 RBI across 84 plate appearances. That production hasn't translated to the majors, however, as the 27-year-old has gone just 4-for-27 with a 37 percent strikeout rate in 10 games this season.