text: Sony Corp's new President and Chief Executive Officer Kazuo Hirai attends a news conference at the company's headquarters in Tokyo in this April 12, 2012 file photo. Sony Corp CEO Hirai has spent $1.8 billion in the past three months snapping up an assortment of businesses such as medical equipment and cloud gaming, leaving investors to worry he is blowing his firm's waning finances on a muddled plan to revive the fading giant. Hirai, a Sony veteran of nearly three decades, took over the top spot in April 2012 pledging to reshape the once-stellar brand around the pillars of gaming, digital imaging and mobile devices. Since his promotion, the company's stock market value has fallen by around $8 billion. To match Analysis SONY-FINANCES/ REUTERS/Yuriko Nakao/Files (JAPAN - Tags: HEADSHOT BUSINESS