(Adds Cellnex, Haveli Investments; Updates PacWest Bancorp)...

(Adds Cellnex, Haveli Investments; Updates PacWest Bancorp)

July 26 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 1330 GMT on Wednesday:

** Spain's Cellnex CLNX.MC is exploring a sale of a minority stake in its Nordic operations that could value the unit at up to 1 billion euros ($1.11 billion), people familiar with the matter said, as the company looks to pay down debt

** PacWest Bancorp's PACW.O shares jumped nearly 30% in premarket trading, as investors cheered Banc of California's BANC.N $1.1 billion deal for the lender that has been under pressure since the banking crisis earlier this year

** Private equity firms Haveli Investments and General Atlantic have agreed to acquire business software vendor Certinia from Advent International for nearly $1 billion including debt, according to people familiar with the matter

** Australia's Pacific Current Group (PAC) received a non-binding buyout proposal from Regal Partners Ltd (RPL) , which values the asset manager at A$573.5 million ($388.1 million), the companies said

** Spanish utility Iberdrola IBE.MC has sold a 49% stake in its 476 megawatt (MW) offshore wind farm in German waters in the Baltic Sea to Abu Dhabi's Masdar for about 375 million euros ($414.5 million), it said

** Qatar Investment Authority (QIA), Qatar's sovereign wealth fund, is in talks to buy a stake in Indian billionaire Mukesh Ambani's Reliance Retail Ventures, the Financial Times reported, citing three people with knowledge of the discussions