(Adds MONETA, Marston, Bertelsmann,)
Jan 29 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2100 GMT on Friday:
** National Australia Bank NAB.AX is snapping up small online-only bank 86 400 Holdings for A$220 million ($168.9 million) as it broadens its digital offering in a move analysts said also effectively swallows the competition. The London Stock Exchange LSEG.L said it had completed its $27 billion deal to buy data provider Refinitiv as it bulks up into a major financial data provider to compete with Bloomberg. British online fashion retailer Boohoo has entered exclusive talks with the administrators of Philip Green's collapsed Arcadia group over the purchase of the Dorothy Perkins, Wallis and Burton brands, threatening thousands more high street jobs. Brazilian sugar and ethanol maker Raizen, a joint venture between Cosan SA CSAN3.SA and Royal Dutch Shell Plc RDSa.L , said it has submitted a request for a possible merger with Biosev SA BSEV3.SA to anti-trust agency Cade. French train maker Alstom ALSO.PA said it had completed its previously announced purchase of Bombardier BBDb.TO rail business, an acquisition that should make it the world's No. 2 in its industry behind China's CRRC 601766.SS . Trading platform Robinhood Markets is raising an infusion of more than $1 billion from its existing investors, having been strained by high volumes of trading this week, according to a New York Times report. Germany's Bertelsmann BTGG.F has approached potential bidders including French media giant Vivendi VIV.PA and Altice Europe about selling its controlling stake in French broadcast group M6 MMTP.PA , sources close to the matter told Reuters. MONETA Money Bank's management board said that an offer from PPF was in line with the Czech bank's interests and that a tie-up with PPF's Air Bank could bring tangible benefits. Pub group Marston's MARS.L , brewer of Pedigree, Hobgoblin and Lancaster Bomber beer, has caught the eye of U.S. Platinum Equity Advisors which is looking to make a cash offer for the two-century-old firm, the British company said.