FACTBOX: Gulf Arab foreign acquisitions since May

(Reuters) - Citigroup (C.N) said on Tuesday Abu Dhabi Investment Authority had agreed to buy $7.5 billion worth of its stock, in the second-largest foreign acquisition announced by a Gulf Arab investor.

Gulf investors have announced more than $70 billion in foreign purchases in 2007, more than in any previous year. Following are details of some of the largest deals since May:

* May - Dubai International Capital, a private equity company owned by the ruler of Dubai, says it has bought into HSBC Holdings (HSBA.L) for a fund it manages, making the fund one of the largest investors in Europe's biggest bank.

* May - Saudi Basic Industries Corp 2010.SE agrees to pay $11.6 billion in cash for General Electric Co.'s (GE.N) plastics business in the largest foreign acquisition announced by a Gulf Arab investor.

* May - Dubai says it has bought a 2.2 percent stake in Deutsche Bank AG (DBKGn.DE) through DIFC Investments, becoming the fifth-largest shareholder in Germany's biggest listed bank. The stake would be worth around 1.35 billion euros ($2.01 billion).

* June - Saudi Telecom Co., 7010.SE the largest Arab telecom firm, says it is to buy 25 percent of Malaysia's Maxis (MXSC.KL) in a $3 billion deal to gain access to Indonesia and India, and complete southeast Asia's biggest buyout.

* June - A consortium led by Kuwait's Mobile Telecommunications Co. (ZAIN.KW) wins Saudi Arabia's third mobile license with a $6.11 billion bid announced three months earlier.

* June - Delta Two, a fund owned by Qatar's ruling family, raises its stake in British No. 3 supermarket group J. Sainsbury Plc (SBRY.L) to 25 percent with a 732 million pound ($1.52 billion) purchase. The fund announces a bid approach in July but drops the plan in November.

* July - Dubai International Capital says it has bought a 3.12 percent stake in Airbus parent EADS (EAD.PA) for its Global Strategic Equities Fund. The stake was worth 614 million euros ($912.5 million) at the time.

* July - Saudi Arabia's National Commercial Bank, the Gulf's largest lender by assets, makes its first foreign acquisition, buying a 60 percent stake in Islamic lender Turkiye Finans for $1.08 billion.

* August - Dubai-based Istithmar said it agreed to buy Jones Apparel Group Inc's (JNY.N) Barneys New York for $942.3 million after Japanese retailer Fast Retailing Co. Ltd. pulled out of the bidding.

* August - Borse Dubai says it has made a takeover offer for Nordic exchange owner OMX OMX.ST, valuing it at 27.7 billion Swedish crowns ($4.44 billion). It then reaches a deal with rival bidder Nasdaq Stock Market Inc to make a joint offer that values the company at $4.9 billion.

* August - Dubai World says it will invest up to $5.2 billion in MGM Mirage (MGM.N) by buying shares and half of a major Las Vegas project, becoming a major player in the biggest gambling destination in the United States.

* September - The Qatar Investment Authority said it had bought a 20 percent stake in the London Stock Exchange.

* September - Carlyle Group said it was selling a 7.5 percent stake to Abu Dhabi government-owned Mubadala Development Company for $1.35 billion.

* September - Abu Dhabi National Energy Co TAQA.AD said it would buy Canada's Primewest Energy Trust PWI_U.TO for C$5 billion ($5.09 billion) in cash, in its biggest acquisition to date.