Most actively traded companies on the TSX

Some of the most active companies traded Monday on the Toronto Stock Exchange:

Toronto Stock Exchange (15,200.26, down 28.02 points):

Bombardier Inc. (TSX:BBD.B). Aerospace, rail equipment. Down five cents, or 2.08 per cent, to $2.35 on 14.9 million shares.

Western Forest Products Inc. (TSX:WEF). Forest products. Down 14 cents, or 5.91 per cent, to $2.23 on 7.6 million shares.

Artek Exploration Ltd. (TSX:RTK). Oil and gas. Up 86 cents, or 49.14 per cent, to $2.61 on 5.9 million shares.

Kelt Exploration Ltd. (TSX:KEL). Oil and gas. Down 37 cents, or 4.56 per cent, to $7.74 on 4.6 million shares.

Mart Resources, Inc. (TSX:MMT). Oil and gas. Down nine cents, or 12.86 per cent, to 61 cents on 3.8 million shares.

Romarco Minerals Inc. (TSX:R). Miner. Unchanged at 53 cents on 3.3 million shares.

Companies reporting major news:

Valeant Pharmaceuticals (TSX:VRX). Pharmaceuticals, health-care products. Up $32.72, or 15.05 per cent, to $250.13 on 716,582 shares. Valeant stock soared on news of its friendly US$10-billion takeover offer for Salix Pharmaceuticals, a U.S.-based developer of gastrointestinal drugs.