NEW YORK CITY

Shares of Cytyc Corp.(NASDAQ: CYTC) rose more than 20 percent on Monday, a day after an announcement that Hologic, Inc. (NASDAQ: HOLX) agreed to buy the company for $6.2 billion.

Liberty Global Inc. (NASDAQ: LBTYA), which provides video, voice, internet and cable services to 17 countries, saw its fiscal first quarter profit tumble despite higher revenue.

Shares of MAF Bancorp Inc. (Nasdaq: MAFB) skyrocketed on Tuesday after agreeing to be acquired by National City Corp. (NSYSE: NCC) for $1.9 billion.

Banking holding company Susquehanna Bancshares Inc. (NASDAQ: SUSQ) announced it agreed to pay $860 million in cash and stock to acquire smaller rival Community Banks Inc. (NASDAQ: CMTY) as it expands in new territories.

Financial services firm Northern Trust Corp. (NASDAQ: NTRS) posted a 15 percent gain in its first-quarter net income on record trust, investment and other servicing fees the firm said Tuesday.

Shares of Mobius Management Systems Inc. (NASDAQ: MOBI) jumped on Thursday after it agreed to be acquired by Allen Systems Group, Inc. an enterprise software provider.

Steel maker Ipsco Inc.(NYSE: IPS), the second largest U.S. steel pipe maker for energy explorers, confirmed on Thursday that it is currently in discussions that could lead to a potential acquisition of the company.

Shares of medical laser company Biolase Technology Inc. (NASDAQ: BLTI) tumbled on Wednesday after the company made a preliminary announcement of a first quarter loss.

Shares of NetLogic Microsystems (NASDAQ: NETL)rallied Monday as the semiconductor company raised its first quarter revenue outlook and said that its chief financial officer will be stepping down.

Pharmaceutical and biotechnology company Encorium Group, Inc. (Nasdaq: ENCO) said on Thursday that it received a number of new contracts, with an aggregate value of $4.7 billion.

Xerox Corp. (NYSE: XRS) announced on Monday that it would buy Global Imaging Systems (Nasdaq: GISX), sending shares of the Tampa-based company skyrocketing.

Shares in logistics firm UTi Worldwide Inc. (Nasdaq: UTIW) tumbled Thursday after the logistics firm reported that it’s earnings four the fiscal fourth quarter were short of expectations.

Software giant Microsoft Corp. (Nasdaq: MSFT) is reportedly in talks to buy online advertising firm, DoubleClick Inc., according to the Wall Street Journal.

Shares of Internet telephony company Vonage Holdings Group (NASDAQ: VG) tumbled this morning following a downgrade from Citigroup.

Shares of heart Biosite Inc. (Nasdaq: BSTE) skyrocketed more than 50 percent on Monday after biomedical lab instrument maker Beckman Coulter Inc. (NYSE: BEC) said it would acquire the firm for $1.55 billion.

Internet telephony company Vonage Holdings Corp. (Nasdaq: VG) issued a statement on Monday declaring its confidence that it will prevail in its appeal against an injunction issued last week.

Shares of RealNetworks (NASDAQ: RNWK) plummeted Thursday, following disappointing 2007 guidance announced with its fourth quarter earnings.

Time Warner Inc. (NYSE: TWX) is getting out of the baseball business and, as of Tuesday, the Atlanta Braves' new owner is Liberty Media Corp (NASDAQ: LCAPA), according to reports.

The chief executives leading the world's two largest stock markets - the New York Stock Exchange and Tokyo Stock Exchange - shook hands high above the NYSE trading floor before the opening bell on Wednesday, after announcing that the groups will create an alliance that sets the stage for a possible merger or acquisition.

SL Green Realty Corp. (NYSE: SLG) had consented on Thursday to Reckson Associates Realty Corp. (NYSE: RA) declaring an additional dividend totalling $25 million.

The London Stock Exchange (LSE) board unanimously rejected a $5.1 billion buyout bid by the Nasdaq (NADQ) exchange on Monday. LSE rejected the offer, saying it fails to recognise the value of the exchange. Nasdaq failed in an earlier attempt this year to take over the company.