UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of report (Date of earliest event reported): April 1, 2016

PartnerRe Ltd.

(Exact Name of Registrant as Specified in Its Charter)

Bermuda

(State or Other Jurisdiction of

Incorporation or Organization)

Registrant’s telephone number, including area code: (441) 292-0888

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Preferred Share Exchange Offers

On April 1, 2016, PartnerRe Ltd. (which we refer to herein as “we” or “the Company”) issued a press release announcing the commencement of offers to exchange (collectively, the “exchange offers”) any and all of the Company’s outstanding 6.50% Series D Cumulative Redeemable Preferred Shares, $1.00 par value (the “Series D Preferred Shares”) for the Company’s 6.50% Series G Cumulative Redeemable Preferred Shares, $1.00 par value (the “Series G Preferred Shares”), any and all of the Company’s outstanding 7.25% Series E Cumulative Redeemable Preferred Shares, $1.00 par value (the “Series E Preferred Shares”) for the Company’s 7.25% Series H Cumulative Redeemable Preferred Shares, $1.00 par value (the “Series H Preferred Shares”) and any and all of the Company’s outstanding 5.875% Series F Non-Cumulative Redeemable Preferred Shares, $1.00 par value (the “Series F Preferred Shares”) for the Company’s 5.875% Series I Non-Cumulative Redeemable Preferred Shares, $1.00 par value (the “Series I Preferred Shares”). We collectively refer to Series D Preferred Shares, Series E Preferred Shares and Series F Preferred shares as “existing preferred shares” and to Series G Preferred Shares, Series H Preferred Shares and Series I Preferred Shares as “new preferred shares.”

Upon the terms and subject to the conditions set forth in the offering memorandum relating to the exchange offers, dividends on new preferred shares will begin to accrue and, in the case of Series G Preferred Shares and Series H Preferred Shares, shall be fully cumulative from, March 1, 2016, which is the first day of the current dividend period of the existing preferred shares. If existing preferred shares are validly tendered (and not validly withdrawn) and accepted for exchange, the preferred shareholder will lose the right to receive any accrued dividends for past or current dividend periods on such existing preferred shares.

The exchange offers will expire at 5:00 p.m., New York City time, on April 29, 2016, unless extended or earlier terminated by the Company, in which case the expiration time will be the latest date and time to which the exchange offers are extended or terminated. The press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein.

(d) Exhibits.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: April 1, 2016

Exhibit Index