Cardiovascular Systems beats its estimates, raising more than $84 million through an underwritten public offering of its common stock.

Minnesota medical device maker Cardiovascular Systems (NSDQ:CSII) announced that it raised $84.5 million through sales of 3 million shares of its common stock.
The take was larger than CSI had estimated, as underwriters opted to fully exercise their right to purchase some 391,300 shares, all of which were sold publicly at $30 apiece.