Fresenius has offered to acquire listed German hospital operator Rhön-Klinikum AG for approximately €3.1 billion, or €22.50 per share in cash (52% premium to yesterday’s closing price).www.fresenius.com

Lorillard Inc. (NYSE: LO) has acquired electronic cigarette maker Blu Ecigs for $135 million.www.lorillard.com

ShopRunner, a unit of Kynetic, has acquired PickupZone, a Boston-based network of pick-up locations for merchandise purchased online. No financial terms were disclosed. www.shoprunner.com

Watson Pharmaceuticals Inc. (NYSE: WPI) has agreed to acquire privately-held Swiss generic drugmaker Actavis for an up-front payment of €4.25 billion. www.actavis.com

Accell Group NV, a listed Dutch bicycle maker, has agreed to acquire British bike maker Raleigh fromPerseus LLC for approximately £76 million. www.raleigh.co.uk

Arsenal Capital Partners has sold Novolyte Technologies, a maker of specialty electrolytes for lithium ion batteries, to BASF. No financial terms were disclosed.

Ancestry.com Inc.
 (Nasdaq: ACOM) has agreed to acquire Palo Alto, Calif.-based rival Archives.com for $100 million. Sellers include Inflection LLCwww.ancestry.com

The Carlyle Group has hired J.P. Morgan to help it sell its 23.76% stake in Taiwan’s Ta Chong Bank, according to Reuters. The position is currently worth around $330 million. www.carlyle.com

IBM has agreed to acquire Vivisimo, a Pittsburgh–based provider of federated discovery and navigation software for analyzing big data within the enterprise. No financial terms were disclosed. Sellers includeNorth Atlantic Capitalwww.ibm.com

Triton has agreed to sell Dunkermotoren GmbH, a Bonndorf, Germany-based maker of motion control solutions for industrial automation applications, to AMETEK Inc. (NYSE: AME). No financial terms were disclosed. Dunkermotoren reports 2012 revenue of approximately €155 million. www.ametek.com