Exhibit 99.3

PRELIMINARY UNAUDITED PRO FORMA CONSOLIDATED FINANCIAL INFORMATION

On October 30, 2018, RenaissanceRe Holdings Ltd. (“RenaissanceRe”) entered into a Stock Purchase Agreement by and among RenaissanceRe, Tokio Marine & Nichido Fire Insurance Co. Ltd. (“Tokio”) and, with respect to certain sections only, Tokio Marine Holdings, Inc. (the “TMR Stock Purchase Agreement”), pursuant to which RenaissanceRe agreed, subject to the terms and conditions therein, to cause its wholly owned subsidiary RenaissanceRe Specialty Holdings (UK) Limited to purchase all of the share capital of Tokio Millennium Re AG (“TMR AG”), Tokio Millennium Re (UK) Limited (“TMR UK”) and their subsidiaries (collectively, the “TMR Group Entities”) (the “TMR Stock Purchase”). On March 22, 2019, RenaissanceRe completed the acquisition of the TMR Group Entities. The following preliminary unaudited pro forma consolidated financial information combines the separate historical consolidated financial information of RenaissanceRe and the TMR Group Entities after giving effect to the acquisition of the TMR Group Entities, and the assumptions and adjustments described in the accompanying notes to the preliminary unaudited pro forma consolidated financial information. The preliminary unaudited pro forma condensed consolidated balance sheet as of December 31, 2018 is presented as if the acquisition of the TMR Group Entities had occurred on December 31, 2018. The preliminary unaudited pro forma condensed consolidated statement of operations for the year ended December 31, 2018 is presented as if the acquisition of the TMR Group Entities had occurred on January 1, 2018. The historical financial statements have been adjusted to reflect factually supportable items that are directly attributable to the acquisition of the TMR Group Entities and, with respect to the statement of operations only, expected to have a continuing impact on the results of operations of the combined company. The preliminary unaudited pro forma consolidated financial information gives effect to the gross proceeds of Renaissance’s $400.0 million offering of 3.600% Senior Notes due 2029, which closed on April 2, 2019 (the “Senior Notes”), and the application of $200.0 million of such proceeds to repay indebtedness under RenaissanceRe’s revolving credit facility which was used to fund the purchase price for the TMR Stock Purchase.

The preparation of the preliminary unaudited pro forma consolidated financial information and related adjustments required management to make certain assumptions and estimates. The preliminary unaudited pro forma consolidated financial information should be read together with:

The preliminary unaudited pro forma consolidated financial information has been prepared using the acquisition method of accounting for business combinations in accordance with generally accepted accounting principles in the U.S. (“GAAP”). RenaissanceRe is the acquirer for accounting purposes.

RenaissanceRe has not had sufficient time to completely evaluate the tangible assets, identifiable intangible assets and the value of business acquired of the TMR Group Entities and RenaissanceRe has not completed a formal valuation study at this preliminary stage. Accordingly, the preliminary unaudited pro forma adjustments, including the allocations of the acquisition consideration, have been made solely for the purpose of providing preliminary unaudited pro forma consolidated financial information.

A final determination of the fair values of the TMR Group Entities assets and liabilities will be based on the actual net tangible and intangible assets of the TMR Group Entities that existed as of March 22, 2019, the date of completion of the acquisition. Consequently, amounts preliminarily allocated to goodwill, identifiable intangible assets and the value of business acquired may change significantly from the allocations used in the preliminary unaudited pro forma consolidated financial information presented below and could result in a material change in amortization of acquired finite lived intangible assets and the value of business acquired.

In connection with the plan to integrate the operations of RenaissanceRe and the TMR Group Entities, RenaissanceRe anticipates that nonrecurring charges will be incurred. RenaissanceRe is not able to determine the timing, nature, and amount of these charges as of the date of the preliminary unaudited pro forma consolidated financial information. However, these charges will affect the results of operations of the combined company in the period in which they are incurred. The preliminary unaudited pro forma consolidated financial information does not include the effects of costs associated with any restructuring or integration activities resulting from the transaction, as they are nonrecurring in nature and not factually supportable at the time that the preliminary unaudited pro forma consolidated financial information was prepared.

The preliminary unaudited pro forma consolidated financial information is provided for informational purposes only. Additionally, the preliminary unaudited pro forma consolidated financial information is not necessarily, and should not be assumed to be, an indication of the results that would have been achieved had the transaction been completed as of the dates indicated or that may be achieved in the future. The estimates of fair value are preliminary and are dependent upon certain valuations and other studies that have not progressed to a stage where there is sufficient information to make a definitive valuation. Accordingly, actual adjustments will differ, perhaps materially, from those reflected in the preliminary unaudited pro forma consolidated financial information. In addition, the preliminary unaudited pro forma consolidated financial information does not give consideration to the impact of possible revenue enhancements, expense efficiencies, synergies or asset dispositions that may result from the acquisition of the TMR Group Entities.

- 2 -

n/m—not meaningful.

See accompanying notes to the preliminary unaudited pro forma consolidated financial information.

- 3 -

n/m—not meaningful.

See accompanying notes to the preliminary unaudited pro forma consolidated financial information.

- 4 -

NOTES TO PRELIMINARY UNAUDITED PRO FORMA CONSOLIDATED FINANCIAL INFORMATION

Note 1. Pro Forma Basis of Presentation

The preliminary unaudited pro forma condensed consolidated balance sheet as of December 31, 2018 and the preliminary unaudited pro forma condensed consolidated statement of operations for the year ended December 31, 2018 are based on the historical financial statements of RenaissanceRe and the TMR Group Entities after giving effect to the completion of the acquisition of the TMR Group Entities and the assumptions and adjustments described in the accompanying notes. The preliminary unaudited pro forma condensed consolidated balance sheet as of December 31, 2018 is presented as if the acquisition of the TMR Group Entities had occurred on December 31, 2018. The preliminary unaudited pro forma condensed consolidated statement of operations for the year ended December 31, 2018 is presented as if the acquisition of the TMR Group Entities had occurred on January 1, 2018. The preliminary unaudited pro forma consolidated financial information does not give consideration to the impact of possible revenue enhancements, expense efficiencies, synergies, strategy modifications, asset dispositions or other actions.

RenaissanceRe’s financial statements were prepared in accordance with GAAP and presented in U.S. dollars (“USD”). TMR AG’s financial statements were prepared in accordance with international financial reporting standards as issued by the International Accounting Standards Board (“IFRS”) and presented in USD. TMR UK’s financial statements were prepared in accordance with generally accepted accounting principles in the United Kingdom (“U.K. GAAP”) and presented in pounds sterling (“GBP”). The unaudited pro forma consolidated financial information includes adjustments to (i) convert the financial information of TMR AG and TMR UK to GAAP, and (ii) translate the historical results of TMR UK to USD using a period end spot rate of 1.276 and average spot rate of 1.332 for the pro forma condensed consolidated balance sheet and the pro forma condensed consolidated statement of operations, respectively.

The transaction will be accounted for under the acquisition method of accounting in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic No. 805 Business Combinations, with RenaissanceRe as the acquiring entity. In business combination transactions in which the consideration given is not in the form of cash (that is, in the form of non-cash assets, liabilities incurred, or equity interests issued), measurement of the acquisition consideration is based on the fair value of the consideration given or the fair value of the assets (or net assets) acquired, whichever is more clearly evident and, thus, more reliably measurable.

Under FASB ASC Topic No. 805 Business Combinations , all of the TMR Group Entities assets acquired and liabilities assumed in this business combination are recognized at their acquisition-date fair value, while transaction costs and restructuring costs associated with the business combination are expensed as incurred. The excess of the acquisition consideration over the fair value of assets acquired and liabilities assumed, if any, is allocated to goodwill. Changes in deferred tax asset valuation allowances and income tax uncertainties, if any, after the acquisition date will generally affect income tax expense. RenaissanceRe is in the process of finalizing an integration plan, which will affect how the assets acquired, including intangible assets, will be utilized by the combined company.

A final determination of the estimated fair value of the TMR Group Entities assets acquired and liabilities assumed, including the fair value of the estimated identifiable intangible assets and the value of business acquired, will be based on the actual net tangible and intangible assets, and the value of business acquired of the TMR Group Entities that exist at the date of completion of the acquisition. Consequently, the estimated fair value adjustments, and amounts preliminarily allocated to goodwill, could change significantly from those allocations used in the preliminary unaudited pro forma consolidated financial information. RenaissanceRe has retained a third-party valuation adviser and has not had sufficient time to complete a formal valuation study of the TMR Group Entities assets and liabilities, including identifiable intangible assets and the value of business acquired, at this preliminary stage. RenaissanceRe does not expect to complete a formal valuation study until the filing of its Quarterly Report on Form 10-Q for the fiscal quarter ending March 31, 2019. Accordingly, the preliminary unaudited pro forma adjustments, including the allocations of the acquisition consideration, have been made based on estimates solely for the purpose of providing preliminary unaudited pro forma consolidated financial information.

At this preliminary stage, in addition to the value of business acquired, the estimated identifiable finite lived intangible assets include broker relationships, non-contractual relationships and non-compete agreements. The weighted average useful life of the estimated identifiable finite lived intangible assets and the value of business acquired is estimated to be 3.3 years. There is significant uncertainty at this preliminary stage regarding the valuation of the identifiable intangible assets, the value of business acquired and the determination of the weighted average useful life, as such these items could change significantly from those used

- 5 -

in the preliminary unaudited pro forma consolidated financial information presented herein and could result in a material change in the amortization of acquired identifiable intangible assets and the value of business acquired. The estimated indefinite lived identifiable intangible assets represent insurance licenses which are estimated to have an indefinite life and are therefore not amortized, but will be subject to periodic impairment testing and is subject to the same risks and uncertainties noted for the identifiable finite lived intangible assets. Goodwill represents the excess of the estimated purchase price over the estimated fair value of the TMR Group Entities assets and liabilities, including the fair value of the estimated identifiable finite and indefinite lived intangible assets and the value of business acquired, and will not be amortized, but will be subject to periodic impairment testing.

Upon completion of a formal valuation study, the fair value of the assets and liabilities will be estimated, including the estimated fair value of identifiable intangible assets, the value of business acquired and the allocation of the excess purchase price to goodwill, and such items could change significantly from those used in the preliminary unaudited pro forma consolidated financial information presented herein and could result in a material change in the amortization of the fair value adjustments including the acquired identifiable intangible assets and the value of business acquired.

In connection with the plan to integrate the operations of RenaissanceRe and the TMR Group Entities, RenaissanceRe anticipates that nonrecurring charges will be incurred. RenaissanceRe is not able to determine the timing, nature, and amount of these charges as of the date of this preliminary unaudited pro forma consolidated financial information. However, these charges will affect the results of operations of the combined company, in the period in which they are incurred. The preliminary unaudited pro forma consolidated financial information does not include the effects of the costs associated with any restructuring or integration activities resulting from the transaction, as they are nonrecurring in nature and not factually supportable at the time that the preliminary unaudited pro forma consolidated financial information was prepared.

The preliminary unaudited pro forma consolidated financial information is presented solely for informational purposes and is not necessarily indicative of the consolidated results of operations or financial position that might have been achieved for the periods or dates indicated, nor is it necessarily indicative of the future results of the combined company.

Note 2. TMR Group Entities

Certain financial information of the TMR Group Entities, as presented in its historical audited financial statements, has been reclassified to conform to the historical presentation in RenaissanceRe’s consolidated financial statements and combined for purposes of preparing the preliminary unaudited pro forma condensed consolidated financial statements.

TMR AG’s audited historical consolidated financial statements are prepared in accordance with IFRS. The consolidated financial statements are presented in U.S. dollars, which is the reporting currency.

TMR UK’s audited historical financial statements are prepared in accordance with U.K. GAAP. TMR UK’s reporting and functional currency is GBP. For purposes of preparing the preliminary unaudited pro forma condensed consolidated financial statements, TMR UK’s audited historical financial statements have been translated into U.S. dollars using a period end spot rate of 1.276 and average spot rate of 1.332 for the pro forma condensed consolidated balance sheet and the pro forma condensed consolidated statement of operations, respectively.

Preliminary unaudited adjustments have been made to convert IFRS and U.K. GAAP, to GAAP and are noted in Note 4. There are no material intercompany balances or transactions between TMR AG and TMR UK. The table below reflects the combination of TMR AG and TMR UK, inclusive of the conversion to USD.

- 6 -

- 7 -

- 8 -

- 9 -

Note 3. Acquisition Consideration

Pursuant to the TMR Stock Purchase Agreement, the aggregate consideration for the TMR Stock Purchase was $1.5 billion, consisting of cash, RenaissanceRe shares and a special dividend from the TMR Group Entities, subject to a customary post-closing adjustment.

In connection with the closing of the acquisition of the TMR Group Entities, Tokio, TMR AG and TMR UK entered into a reserve development agreement whereby TMR AG and TMR UK agreed to cede to Tokio, and Tokio agreed to indemnify and reimburse TMR AG and TMR UK for, substantially all of TMR AG and TMR UK’s adverse development on stated reserves at time of closing including unearned premium reserves, subject to certain terms and conditions.

- 10 -

Note 4. Preliminary Unaudited Pro Forma Adjustments

The preliminary unaudited pro forma consolidated financial information is not necessarily indicative of what the financial position and results from operations would have been had the acquisition of the TMR Group Entities been completed at the date indicated and includes adjustments which are preliminary and may be revised. Such revisions may result in material changes. The financial position shown herein is not necessarily indicative of what the past financial position of the combined company would have been, nor necessarily indicative of the financial position of post-acquisition periods. The preliminary unaudited pro forma consolidated financial information does not give consideration to the impact of possible revenue enhancements, expense efficiencies, synergies, strategy modifications, asset dispositions or other actions that may result from the acquisition of the TMR Group Entities.

The following preliminary unaudited pro forma adjustments result from accounting for the acquisition of the TMR Group Entities, including the determination of fair value of the assets, liabilities and commitments which RenaissanceRe, as the acquirer for accounting purposes, acquired from the TMR Group Entities. The descriptions related to these preliminary unaudited pro forma adjustments are as follows:

- 12 -

Note 5. Earnings per Share

Pro forma earnings per common share for the year ended December 31, 2018 have been calculated using RenaissanceRe’s historical weighted average common shares outstanding, plus 1,739,071 of RenaissanceRe’s common shares issued as acquisition consideration under the TMR Stock Purchase Agreement.

The following table sets forth the calculation of pro forma basic and diluted earnings per common share and the calculation of pro forma basic and diluted weighted average common shares outstanding for the year ended December 31, 2018:

- 14 -