Altman resigned late Monday.
His tenure in Arizona included moving the company out of Tucson and into new digs in Phoenix that were financed through a voter-approved bond issue.
Before he arrived in Tucson, Altman ran Opera New Jersey, which he co-founder with his wife Lisa.
Ryan Taylor, who joined Arizona Opera as its director of artistic administration in early 2012, will has been appointed interim general director.
See the full story in Wednesday’s Star.