Rohan Goswami / CNBC:
CrowdStrike reports Q4 revenue up 33% YoY to $845M, vs. $839M est., and agrees to buy cloud security company Flow Security for an undisclosed price; CRWD up 20% — CrowdStrike shares surged as much as 17% in after-hours trading Tuesday, after the company reported a beat on the top and bottom lines …