(Adds Glencore, Alitalia, Netshoes Cayman Ltd, Aker ASA)
June 12 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2000 GMT on Wednesday:
** French technology company Dassault Systemes SE is nearing a deal to acquire U.S.-based software firm for clinical trials Medidata Solutions Inc to boost its life sciences unit, CNBC reported on Tuesday, citing people familiar with the matter.
** Billionaire investor William Ackman's activist hedge fund Pershing Square Capital Management LP is opposing United Technologies Corp's planned $120 billion aerospace merger with defense contractor Raytheon Co, a person familiar with the matter said on Tuesday.
** U.S. refiner PBF Energy Inc on Tuesday agreed to pay up to $1 billion for a California oil refinery that Royal Dutch Shell PLC has been trying to sell for at least four years.
** Australian conglomerate Wesfarmers is buying e-commerce retailer Catch Group for about $160 million to boost the small online footprint of its retail units such as Kmart and Target amid a big shift by domestic shoppers to the web.
** Toymaker Mattel Inc last week rejected another merger offer from Bratz doll maker MGA Entertainment Inc, MGA's chief executive officer, Isaac Larian, said on Tuesday.
** France's Dassault Systemes moved to build up its life sciences presence with a $5.8 billion cash deal to buy Medidata Solutions, a U.S. firm focused on clinical trials.
** Macquarie-owned Green Investment Group (GIG) will acquire a Swedish 43-megawatt (MW) onshore wind farm project from developer OX2, it said in a statement.
** U.S. private equity investor KKR offered a 40% premium to buy out minority investors in Axel Springer in a deal that entrenches the influence of the main shareholders at the publishers of Germany's Bild newspaper.
** Norway's $1 trillion sovereign wealth fund may have to sell a $1 billion stake in commodities firm Glencore and other investments to meet tighter ethical investing rules adopted by its parliament.
** Apparel retailer Grupo SBF SA, operator of Brazil's Centauro stores, has boosted its offer for online sports retailer Netshoes Cayman Ltd to $3.70 per share, as it tries to outbid rival contender Magazine Luiza SA .
** Norwegian investment firm Aker ASA aims to list its software firm Cognite on the Oslo stock market or find a merger partner for it to spur growth, AKER Chief Executive Oeyvind Eriksen said.
** The chairman of soccer club Lazio, Claudio Lotito, has presented an offer for Italian flagship carrier Alitalia, a source close to the matter said. (Compiled by Aakash Jagadeesh Babu in Bengaluru)