Proxy adviser Institutional Shareholder Services Inc. said Friday that PartnerRe Ltd. shareholders should vote against a $11 billion merger with Axis Capital Holdings Ltd. because the all-cash offer from Italian investment group Exor SpA is more favorable.

Including a recently added $3 dividend, Exor's offer for PartnerRe would be valued at $140.50 a share. In comparison, Axis's offer values ParnerRe at about $139, based on Friday afternoon trading.

ISS said the Exor offer gives shareholders greater certainty of value and represents a healthy 23% premium to PartnerRe's unaffected stock price on Jan. 23.

ISS also said it is unlikely that Exor's bid would be derailed by regulatory review, because of Exor's ample resources and prior ownership of an insurance business.

ISS added that a private-letter ruling for a merger, favored by PartnerRe and Axis, is likely to result in shrinkage of PartnerRe employees. Unlike Axis, ISS said there is little business overlap between Exor and PartnerRe that would result in employee loss due to efficiencies.

Earlier this week, PartnerRe and Axis reaffirmed their commitment, saying Exor's latest offer for PartnerRe could subject preferred shareholders to an onerous annual reporting and penalty regime.

PartnerRe also has insisted in the past that Exor's offer was inferior because the Axis deal offered cost savings of at least $200 million as well as potential revenue and capital benefits.

Write to Neil Haggerty at neil.haggerty@wsj.com

Access Investor Kit for AXIS Capital Holdings Ltd.

Visit http://www.companyspotlight.com/partner?cp_code=P479&isin=BMG0692U1099

Access Investor Kit for PartnerRe Ltd.

Visit http://www.companyspotlight.com/partner?cp_code=P479&isin=BMG6852T1053

Access Investor Kit for Exor SpA

Visit http://www.companyspotlight.com/partner?cp_code=P479&isin=IT0001353140

Subscribe to WSJ: http://online.wsj.com?mod=djnwires

Partnerre (NYSE:PRE)
Historical Stock Chart
From Apr 2024 to May 2024 Click Here for more Partnerre Charts.
Partnerre (NYSE:PRE)
Historical Stock Chart
From May 2023 to May 2024 Click Here for more Partnerre Charts.