Irvine, Calif. — Gregory V. Hackman, executive vice president and chief operating officer of Boot Barn Holdings, Inc., plans to retire later this year. He will continue with the company until his retirement date, currently estimated for June, and transition his responsibilities to other company executives. “I would like to extend my heartfelt gratitude to Greg for his 8 years with Boot Barn,” says Jim Conroy, president and chief executive officer. “Greg joined Boot Barn as our CFO in 2015, shortly after our IPO, and continued to take on more …