Companies in the news:Transat A.T. (TSX:TRZ). Up $4.96 or 42.1 per cent to $16.75. Quebec’s securities tribunal has barred a developer’s offer to buy up Transat shares, halting Group Mach’s bid to block the tour operator’s sale to Air Canada. The decision comes one day after the country’s largest airline upped its takeover offer by $200 million in an effort to win shareholder support for its bid to take Transat private. The new offer would see Air Canada spend $18 per share, rather than $13, bringing the total offer to about $720 million, up 38 per cent from a previously announced bid worth $520 million.Inter Pipeline Ltd. (TSX:IPL). Down 57 cents or 2.3 per cent to $24.24. Shares in Inter Pipeline Ltd. fell after soaring late last week on news that it had rejected an unsolicited takeover from an unnamed bidder. During a conference call Friday to discuss second-quarter results, company executives refused to comment on a Globe and Mail report that cited unnamed sources regarding a $30-per-share cash offer. In mid-afternoon, however, after trading was halted, Inter issued a brief statement confirming there had been “an unsolicited, non-binding, conditional and indicative proposal,” without giving any details about the date, price or the identity of the bidder.Canfor Corp. (TSX:CFP). Up $6.46 or 73.4 per cent to $15.26. Canfor Corp. shares surged after a Jim Pattison Group company made a $16 a share bid to take the company private. Pattison’s Great Pacific Capital Corp., which already owns about 51 per cent of the lumber producer, made the all-cash offer over the weekend that was a 60-per-cent premium to the company’s 60 day average price and an 81.8-per-cent premium to Friday’s close. Great Pacific says the proposed transaction, which values Canfor at about $2 billion, will allow for the elimination of the significant costs related to maintaining a public company listing and allow for reinvestment of that money in the company’s operations.CannTrust Holdings Inc. (TSX:TRST). Down $1.17 or 27.8 to $3.04. The wild ride for CannTrust Holdings Inc. shareholders continued Monday after the company’s stock plunged on news that its manufacturing facility in Vaughan, Ont., has been rated non-compliant by Health Canada. The company says it was notified by Health Canada on Friday and added that remedial actions were underway. The share swing marks a second consecutive volatile trading session, as shares initially fell Friday morning, only to roar back late in the day to close more than 40 per cent higher. The decision by the regulator was based on an inspection in July following revelations that Health Canada had found the company’s greenhouse in Pelham, Ont., to be non-compliant.Barrick Gold Corp. (TSX:ABX). Down 16 cents to $23.80. Barrick Gold Corp. reported a second-quarter profit of US$194 million compared with a loss of US$94 million a year ago. The gold miner, which keeps its books in U.S. dollars, says on an adjusted basis, Barrick says it earned $154 million or nine cents per share in the quarter, up from an adjusted profit of $81 million or seven cents per share a year ago. Analysts on average had expected a profit of nine cents per share, according to the financial markets data firm Refinitiv.The Canadian Press TORONTO — Some of the most active companies traded Monday on the Toronto Stock Exchange:Toronto Stock Exchange (16,237.77, down 103.57 points).Bombardier Inc. (TSX:BBD.B). Industrials. Down eight cents, or 4.42 per cent, to $1.73 on 8.6 million shares.CannTrust Holdings Inc. (TSX:TRST). Health care. Down $1.17 or 27.79 per cent, to $3.04 on 6 million shares.B2Gold Corp. (TSX:BTO). Materials. Up three cents, or 0.62 per cent, to $4.89 on 5.5 million shares.Manulife Financial Corp. (TSX:MFC). Financials. Down 17 cents, or 0.77 per cent, to $21.99 on 5.4 million shares.Encana Corp. (TSX:ECA). Energy. Up 10 cents, or 1.76 per cent, to $5.79 on 5.3 million shares.TSO3 Inc. (TSX:TOS). Health care. Up four cents, or 10.39 per cent, to 42.5 cents on 4.4 million shares.