Most actively traded companies on the TSX, TSX Venture Exchange markets

TORONTO – Some of the most active companies traded Monday on the Toronto Stock Exchange and the TSX Venture Exchange:

Toronto Stock Exchange (12,858.49 up 22.87 points):

BlackBerry (TSX:BB). Wireless technology. Up $1.86, or 13.85 per cent, at $15.29 on 11.38 million shares. The information technology sector had the most gain among the subgroups, rising 3.66 per cent to 30.30 points. AT&T Inc. announced that presales of the BlackBerry Z10 touchscreen smartphone will begin Tuesday, with an official launch on March 22. T-Mobile will carry the phone for its business customers as early as the end of this week.

B2Gold Corp. (TSX:BTO). Miner. Up six cents, or 2.08 per cent, at $2.95 on 4.97 million shares.

Nevsun Resources Ltd. (TSX:NSU). Miner. Down 45 cents, or 11.14 per cent, at $3.59 on 3.76 million shares.

Carlisle Goldfields Ltd. (TSX:CGJ). Miner. Down a penny, or 9.09 per cent, at 10 cents on 2.93 million shares.

TORC Oil and Gas Ltd. (TSX:TOG). Oil and gas. Down three cents, or 1.69 per cent, at $1.74 on 2.75 million shares.

Bombardier Inc. (TSX:BBD.B). Transportation equipment. Down five cents, or 1.20 per cent, at $4.10 on 2.50 million shares.

TSX Venture Exchange (1,116.27 down 1.58 points):

Med BioGene Inc. (TSXV:MBI). Life sciences. Up four cents, or 61.54 per cent, at 10.5 cents on 6.63 million shares.

Blackstone Ventures Inc. (TSXV:BLV). Mine explorer. Unchanged at half a cent on 3.62 million shares.

Companies reporting major news:

Clearwater Seafoods Inc. (TSX:CLR). Frozen seafood packager. Up 12 cents, or 2.41 per cent, at $5.09 on 227,765 shares. The Halifax-based company posted fourth-quarter net income of $10.5 million or 15 cents per share versus $16.4 million or 28 cents per share in the same period last year. Revenue improved seven per cent to $92.96 million, boosting full-year sales to $350.4 million, its highest recorded revenue in company history.

Aurizon Mines Ltd. (TSX:ARZ). Miner. Down four cents, or 0.88 per cent, at $4.51 on 538,676 shares. The board of Aurizon Mines has adopted a new shareholder rights plan, to prevent Alamos Gold Inc. (TSX:AGI) from using its voting power to defeat a better takeover offer from its rival Hecla Mining Co. Alamos already owns 16 per cent of Aurizon and has offered to buy up the rest of its stock. Alamos’ stock rose two cents, or 0.14 per cent, at $14.56 on 171,526 shares.