M&A and IPOs

Leonard Riggio said that he is suspending his efforts to make a buyout offer for the retail business ofBarnes & Noble Inc. (NYSE: BKS). Riggio is the bookseller’s founder and chairman.www.barnesandnobleinc.com

T. Rowe Price has acquired an undisclosed number of shares in GrubHub Seamless, an online and mobile food ordering company. No financial terms were disclosed. GrubHub Seamless — which was formed earlier this year via merger — had raised over $130 million in VC funding from firms like Origin Ventures, Amicus Capital, Benchmark, DAG Ventures, Lightspeed Venture Partners and Spectrum Equity Investors. www.grubhub.com

Arle Capital has hired Deutsche Bank to find a buyer for Innovi, a British maker of industrial films, according to the FT. The deal could be valued at around €500 million (including debt).www.innoviafilms.com

Ethos Private Equity and Actis are planning to launch a sale or IPO for Alexander Forbes Ltd., a South African retirement fund administrator, according to Bloomberg. The firms paid just over $800 million to acquire Alexander Forbes in 2007. www.alexanderforbes.co.za

St. Jude Medical Inc. (NYSE: STJ) has acquired Endosense, a Swiss developer of force-sensing technology used in catheter ablation for the treatment of cardiac arrhythmias. The deal is valued at upwards of $331 million in cash, including a $170 million upfront payment and $161 million in milestone-based payments. Endosense has raised around $80 million in VC funding from NGN Capital, Edmond de Rothschild Investment Partners, NeoMed Management, Gimv, VI Partners, Sectoral Asset Management, Ysios Capital Partners and Initiative Capital Romandie. www.endosense.com

Regado Biosciences Inc., a Basking Ridge, N.J.-based developer of antithrombotic drug systems for acute and sub-acute cardiovascular indications, has amended its IPO terms to 8.4 million shares being offered at $5 per share. It previously planned to offer 5 million shares at between $14 and $16 each. The company still plans to trade on the Nasdaq under ticker symbol RGDO, with Cowan & Co. and BMO Capital Markets. Shareholders include Domain Associates (19.2% pre-IPO stake), Quaker BioVentures (12.7%), Edmond de Rothschild Investment Partners (12.4%), RMI Investments (14.2%) and The Aurora Funds (7.9%). www.regadobio.com

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