By midafternoon, shares had taken off 4.1% to $4.24.
The flash storage maker recorded a net loss of 28 cents a share in the three months to January, in line with estimates according to analysts surveyed by Thomson Reuters.
Revenue of $28.05 million, though 22.3% higher year over year, fell short of consensus of $30.77 million.
Over the fiscal year, the company posted a net loss of $2.54 a share. Analysts had forecast a loss of $1.94 a share.