Deals of the day- Mergers and acquisitions

(Adds Corvex Management, Superdry, Manchester United, Silver Lake, Repsol, ION Group, Limagrain, Degroof Petercam, Bosch; updates Deutsche Bank)

April 28 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 1945 GMT on Friday:

** Corvex Management has built a stake in Algonquin Power & Utilities Corp, joining other activist investment firms pushing for changes at the Canadian power company, people familiar with the matter said.

** Struggling British fashion brand Superdry is said to be in advanced talks to raise about 15 million pounds ($19 million) by selling shares, Sky News reported.

** Sheikh Jassim Bin Hamad Al Thani, the son of Qatar's former prime minister, is set to lodge an improved third bid of less than 5 billion pounds ($6.28 billion) for English soccer club Manchester United by Friday's deadline, The Guardian reported.

** Private equity firm Silver Lake disclosed it had raised its stake in Software AG, days after announcing a 2.2 billion-euro ($2.42 billion) tender offer for the German business software developer.

** Spain's Repsol has reached an agreement with Chinese energy conglomerate Sinopec to buy the 49% of a joint venture in the North Sea it does not already own, it said, settling a long-running arbitration between them.

** Financial software provider ION Group is struggling to agree with banks terms for a financing it needs to buy the Italian business of U.S. investment fund Davidson Kempner (DK) Capital Management, two sources close to the matter said.

** French agricultural cooperative Limagrain has offered to buy the 28.78% of Vilmorin it does not already own in a deal that values one of the world's biggest seed suppliers at 1.43 billion euros ($1.57 billion).

** Belgium's Degroof Petercam is working with advisers to assess strategic options, a company spokesperson said, following takeover interest from rival bank Belfius, two people familiar with the matter told Reuters.

** German technology group Bosch said it had sold manufacturing facilities and administration at one of its sites in Russia to holding company S8 Capital, which plans to rebrand the facilities within six months.

** Singapore sovereign wealth fund GIC has agreed to buy a portfolio of six logistics assets in Japan for more than $800 million from Blackstone Inc, the U.S. private equity company said, reflecting solid appetite for logistics real estate.

** Deutsche Bank said it had agreed to buy Numis Corp, a London-based boutique investment bank, for about 410 million pounds ($511 million) as the German company deepens links with British corporate clients.

** Three firms are vying to buy a minority stake of up to 49% in Iberdrola's "Baltic Eagle" offshore wind farm off the German coast, newspaper Expansion reported on Friday, citing unidentified market sources. (Compiled by Ananta Agarwal and Granth Vanaik in Bengaluru)