December 9, 2011, 7:47 PM UTC

IBM (NYSE: IBM) has agreed to acquire DemandTec (Nasdaq: DMAN), a San Mateo, Calif.-based collaborative analytics cloud for retailers and consumer products companies. The deal is valued at approximately $440 million, or $13.20 per share. www.ibm.com

Chow Tai Fook Jewelery, a Hong Kong-based jewelry retailer, raised $2 billion in its Hong Kong IPO, pricing at the bottom of its range. The company has an initial market cap of around $19.3 billion.

Infinova of China has agreed to acquire March Networks Corp. (TSX: MN), a Canadian maker of surveillance technology, for C$90.1 million. The C$5 per share offer price represents a 2.24% premium to yesterday’s closing price. www.marchnetworks.com

Nextag, a San Mateo, Calif.–based online comparison shopping company, has acquired FanSnap, a Palo Alto, Calif.-based live event ticket search engine. No financial terms were disclosed.Nextag backers include Providence Equity Partners, Morgenthaler Ventures and Technology Crossover Partners. FanSnap has raised around $15 million from General Catalyst Partners and Highland Capital Partners. www.nextag.com

Red Robot Labs, a Palo Alto, Calif.-based mobile gaming company whose lead title is Life Is Crime, has acquired British game developer Supermono Studios. No financial terms were disclosed. Red Robot recently raised $8.5 million in Series A funding from Benchmark Capital, Shasta Ventures and return backers Rick Thompson (co-founder of Playdom) and Chamath Palihapitiya (ex-Facebook). www.redrobotlabs.com

Lattice Semiconductor Corp. (Nasdaq: LSCC) has agreed to acquire SiliconBlue Technologies, a Santa Clara, Calif.-based provider of custom mobile device solutions, for $62 million in cash. SiliconBlue had raised around $57 million in VC funding, including an $18 million Series D round this past July. Shareholders include Atlantic Bridge, BlueRun Ventures, Crosslink Capital, New Enterprise Associates and Apex Venture Partners. www.siliconbluetech.com

Ontario Teachers’ Pension Plan has agreed to sell its 80% stake in Maple Leaf Entertainment, the holding company for the Toronto Maple Leafs hockey franchise and Toronto Raptors basketball franchise, to Rogers Communications Inc. and BCE Inc. for C$1.3 billion, according to the Globe and Mail.

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