Adds: Updates: UniCredit

Jan 12 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2100 GMT on Monday:

** UniCredit <CRDI.MI> CEO Andrea Orcel has discussed potentially buying the stake in Monte dei Paschi di Siena (MPS) <BMPS.MI> held by Delfin in contacts with the head of the Italian holding company, three people close to the matter told Reuters

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** British medical products maker Smith & Nephew <SN.L> will buy U.S.-based Integrity Orthopaedics in a deal that could be valued at up to $450 million

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** Brown & Brown-owned MGA Nexus Underwriting has acquired medical travel MGA Sure Insurance Services

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** Malaysian conglomerate Sunway SWAY.KL launched a takeover bid for IJM Corp IJMS.KL in an attempt to acquire the construction firm for about 11 billion ringgit ($2.71 billion).

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** Low-cost airline Allegiant <ALGT.O> will acquire Sun Country Airlines <SNCY.O> in a deal valued at about $1.5 billion, including debt, the companies said on Sunday.

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(Compiled by Koyena Das and Rajarshi Roy in Bengaluru)

((Rajarshi.Roy@thomsonreuters.com))