BUZZ-LSE: said to put $1.4 bln price tag on Russell Investments

** London Stock Exchange (Other OTC: LDNXF - news) said to put Russell Investments for sale in mid-February, looking to fetch $1.4 bln, sources tell Reuters

** Russell Investments is the asset management arm of Frank Russell Co, which LSE bought last year from insurer Northwestern Mutual for $2.7 bln

** Motivation for purchase largely to expand into indexes business

** Co to run formal sales process for unit, has had informal conversations with at least 3 interested parties including CIBC

** LSE is second-best performing exchange operator globally over past year, up more than 40 pct. HKEx (HKSE: 0388-OL.HK - news) maintains No. 1 position, up 46 pct Chart: http://link.reuters.com/kur43w

(RM (LSE: RM.L - news) : vikram.subhedar.thomsonreuters.com@reuters.net)