Some of the most active companies traded Friday on the Toronto Stock Exchange:Toronto Stock Exchange (15,728.32, down 47.98 points):Aurora Cannabis Inc. (TSX:ACB). Healthcare. Down eight cents, 2.57 per cent, to $3.03 on 9.5 million shares.Canopy Growth Corp. (TSX:WEED). Healthcare. Down 19 cents, 1.50 per cent, to $12.48 on 6.3 million shares.Element Fleet Management Corp. (TSX:EFN). Financial Services. Up 94 cents, or 10.40 per cent, to $9.98 on 4.3 million shares.Aphria Inc. (TSX:APH). Pharmaceutical. Down 23 cents, or 2.99 per cent, to $7.45 on 4.1 million shares.Baytex Energy Corp. (TSX:BTE). Oil and gas. Down 20 cents, 5.35 per cent, to $3.54 on 3.5 million shares.B2Gold Corp. (TSX:BTO). Miner. Down four cents, or 1.12 per cent, to $3.54 on 3.4 million shares.Companies reporting major news:Bombardier Inc. (TSX:BBD.B). Aerospace, rail equipment. Up two cents, 0.91 per cent, to $2.21 on 3.4 million shares. On Friday, the U.S. Department of Commerce tacked on another 79.82 per cent of preliminary anti-dumping duties, now totalling almost 300 per cent, for Bombardier to export its CSeries commercial jet into the American market once deliveries to Delta Air Lines begin next year.Restaurant Brands International Inc. (TSX:QSR). Fast food restaurants. Up $1.21, 1.50 per cent, to $82.11 on 315,991 shares. The legal battle between a group of Tim Hortons franchisees and their parent company escalated Friday as the corporate-unsanctioned franchisee association filed a lawsuit alleging RBI, its subsidiary and several executives of subverting their right to associate.