Bermuda-based PartnerRe has announced that its board of directors has approved a share repurchase authorisation for a total of up to six million common shares, effective immediately.This authorisation supercedes the company’s previous authorisation, which PartnerRe has repurchased approximately 4.3 million common shares during 2012.“From time to time, and depending on market conditions, the company will continue the repurchase programme in open market or privately negotiated or structured transactions,” PartnerRe said in a statement.PartnerRe provides multi-line reinsurance to insurance companies and recorded total revenue of $5.4 billion at the end of 2011. At June 30, 2012, total assets were $23.1 billion, total capital was $7.5 billion and total shareholders’ equity was $6.7 billion.