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 (12,352.78 down 27.63 points):

Bombardier Inc. (TSX:BBD.B). Transportation equipment. Down 14 cents, or 3.80 per cent, at $3.54 on 12,165,498 shares.

Uranium One. (TSX:UUU). Miner. Down two cents, or 0.99 per cent, at $2 on 5,442,945 shares.

Baja Mining Corp. (TSX:BAJ). Miner. Down 1.5 cents, or 10.34 per cent, at 13 cents on 5,335,127 shares.

Paladin Energy Inc. (TSX:PDN). Oil and gas. Up one cent, or 0.92 per cent, at $1.10 on 4,570,998 shares.

Lachlan Star Ltd. (TSX:LSA). Gold miner. Down eight cents, or 4.97 per cent, at $1.53 on 3,962,302 shares.

Research in Motion Ltd. (TSX:RIM). Wireless technology. Up 15 cents, or 1.72 per cent, at $8.87 on 3,584,418 shares.

TSX Venture Exchange (1,301.93 down 8.10 points):

Porto Energy Corp. (TSXV:PEC). Oil and gas explorer. Down half a cent, or 9.09 per cent, at five cents on 4,345,550 shares.

Donner Metals Lts. (TSXV:DON). Miner. Up half a cent, or 2.86 per cent, at 18 cents on 3,761,415 shares.

Companies reporting major news:

TransCanada Corp. (TSX:TRP). Oil and gas. Up seven cents, or 0.15 per cent, at $45.27 on 840,127 shares. Mexican authorities have awarded the company a second contract in a week to build a natural gas pipeline.The Calgary-based company said Monday it will invest about US$400 million in a 413-kilometre pipeline between El Oro and Mazatlan, near Mexico’s west coast.

Petaquilla Minerals Ltd. (TSX:PTQ). Miner. Unchanged at 64 cents on 2,715,050 shares. The chief executive of Petaquilla Minerals Ltd. is ready to work with Inmet Mining Corp. (down 21 cents at $55.90 on 707,322 shares), which has made a hostile takeover bid for his company, if shareholders turn down the offer.While confident shareholders would turn down the Inmet offer, Petaquilla chief executive Joao Manuel said Petaquilla was prepared for the possibility of Inmet acquiring a substantial stake in the company.