Mid-Day Market Movers (DDMX, ACTL, MIM, GKK)

Dynamex Inc DDMX jumped 37.43% to $21.04 at 10:28 am. DDMX has agreed to be purchased by Greenbriar Equity Group LLC for about $210 million or $21.25 per share. Actel Corporation ACTL shares advanced 30.65% to $20.93. Microsemi Corp MSCC has agreed to acquire ACTL for around $430 million or $20.88 per share in a cash tender offer. MI Developments Inc MIM climbed 30.27% to $13.90. ST Acquisition Corp has agreed to purchase the outstanding shares of MIM for $13 per share in cash, representing a 21% premium to MIM' closing price on Friday. Gramercy Capital Corp GKK shares surged 18.54% to $1.79. GKK has announced its offer to buy up to 4,000,000 shares of the Series A Cumulative Redeemable Preferred Stock for $15.00 per Series A Share in cash. Read more from Benzinga's Markets.