(Adds Cedar Fair, AMS, Boeing; updates Thomson Reuters)
Oct 5 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2000 GMT on Friday:
** Austria's AMS failed in its 4.5 billion euro ($4.9 billion) takeover attempt of Osram but said it would still explore strategic options to pursue an acquisition of the German lighting group.
** U.S. amusement park operator Cedar Fair LP has rejected a $4 billion cash-and-stock offer from larger peer Six Flags Entertainment Corp as inadequate, people familiar with the matter said.
** Spirit AeroSystems Holdings Inc has emerged as the front-runner to acquire Bombardier Inc's aerostructures facilities in Belfast and Morocco, two sources familiar with the matter told Reuters.
** After months of evaluating sale and merger options, telecommunications gear provider Avaya Holdings Corp announced a strategic partnership and $500 million contribution from RingCentral Inc.
** EU antitrust regulators opened a full-scale investigation into Boeing's bid for a controlling stake in Embraer's EMBR3.SA commercial aircraft arm, saying the deal may reduce competition and push up prices.
** Australian buyout firm Crescent Capital Partners is looking to sell a water pipeline manufacturer it bought in 2015, two sources told Reuters, aiming to tap increased offshore interest in water infrastructure.
** Thomson Reuters Corp, said it had acquired events company FC Business Intelligence (FCBI) to tap into the fast growing sector and help further promote its Reuters News brand. (Compiled by Amal S and Nivedita Balu in Bengaluru)