Bob Brennan became CEO in June 2008, when Richard Reese stepped aside after 27 years. Reese remains chairman of the board and owns about 2.5% of shares. Brennan joined Iron Mountain when the company acquired Connected Corporation, where he was CEO. Whereas Reese oversaw Iron Mountain's significant growth, largely via successful acquisitions, Brennan is more of an operator who will improve operating efficiencies, make niche acquisitions, and expand the digital capabilities.
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