(Adds Amgen, Microsoft, Haitong International Securities; updates Exxon Mobil, Liontown Resources)
Oct 6 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 1330 GMT on Friday:
** Amgen AMGN.O said it had completed the $27.8 billion acquisition of Horizon Therapeutics HZNP.O after itreceived the go-ahead from the U.S. Federal Trade Commission (FTC) last month on certain conditions.
** Shares of Pioneer Natural Resources PXD.N rose 10% in premarket trading following reports that top U.S. oil and gasproducer Exxon Mobil XOM.N was in advanced talks to buy the shale producer in a deal valued at about $60 billion.
** Australian billionaire Gina Rinehart raised her stake again in lithium producer Liontown Resources (LTR) , givingher enough leverage to possibly block U.S. miner Albemarle Corp's ALB.N $4.3 billion proposed takeover of the company.
** Microsoft MSFT.O is aiming to close its $69 billion deal for "Call of Duty" publisher Activision Blizzard ATVI.Oon Oct. 13 if it gets approval from Britain's antitrust regulator, the Verge reported, citing a source.
** Haitong International Securities 0665.HK said on Thursday its parent and Shanghai-based Haitong Securities600837.SS has made HK$3.42 billion ($436.66 million) offer to take the Hong Kong-listed unit private and take full control of the firm.
** Australian gold miner Newcrest Mining (NCM) said Newmont Corporation NEM.N , its suitor for a proposed A$26.2 billion ($16.68 billion) buyout, had received all government regulatory approvals required for the deal to go through.
** Real estate investment firm Rithm Capital RITM.N is sticking by its original offer to buy Sculptor Capital Management SCU.N agreed in July, even as the hedge fund's special committee evaluates a sweetened bid from a consortium headed by investor Boaz Weinstein, according to a regulatory filing made on Thursday.
** Shareholders of global grains merchant and oilseeds processor Bunge BG.N approved the company's acquisition of Glencore-backed GLEN.L Viterra during a shareholder meeting on Thursday, Bunge said in a statement.