May 4 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 1200 GMT on Monday:

** Electrical equipment maker Hubbell HUBB.N said it had agreed to acquire peer NSI Industries, a portfolio company of Sentinel Capital Partners, for $3 billion in cash.

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** Spanish energy group Repsol <REP.MC> has agreed to sell a 49% stake in its largest portfolio of renewable assets in Spain to the United Arab Emirates' Masdar, newspaper Cinco Dias reported on Monday, citing unidentified sources familiar with the talks.

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** GameStop <GME.N> proposed on Sunday to buy eBay Inc <EBAY.O> for about $56 billion in a cash-and-stock deal, with CEO Ryan Cohen saying he was prepared to take the bid directly to shareholders should eBay's board be unreceptive.

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** Belgian biopharmaceuticals company UCB <UCB.BR> has agreed to buy privately-held Candid Therapeutics in a deal worth up to $2.2 billion, the companies said on Sunday.

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