Exhibit 99.3

UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS

On October 2, 2017, iRobot Corporation, a Delaware corporation together with its wholly-owned subsidiary iRobot UK Ltd., a private limited company incorporated under the laws of England and Wales (“iRobot”), pursuant to a Share Purchase Agreement (the “Share Purchase Agreement”), dated as of July 25, 2017 with Robopolis SAS, a French company (“Robopolis”), shareholders of Robopolis, and SARL High Five Investissements, a French company, as the Shareholders’ Representative, completed its previously announced acquisition of Robopolis through the acquisition of the issued and outstanding capital shares of Robopolis.

At the closing, iRobot paid approximately $170.0 million in cash offset by acquired cash of approximately $38.1 million held by Robopolis and its subsidiaries resulting in a net cash outlay of approximately $131.9 million. Pursuant to the Share Purchase Agreement, $16.0 million of the purchase price was placed into an escrow account to settle certain claims for indemnification for breaches or inaccuracies in Robopolis’ and its shareholders’ representations and warranties, covenants and agreements, and approximately $2.4 million of the purchase price was deposited in escrow to satisfy, in part, any payments due to iRobot for certain post-closing purchase price adjustments.

The following unaudited pro forma combined financial information is shown as if iRobot and Robopolis had been combined as of January 3, 2016 (the first day of iRobot’s 2016 fiscal year) for income statement purposes and as of September 30, 2017 for balance sheet purposes. The unaudited pro forma combined financial statements do not include the pro forma full year financial information for an insignificant business acquired by iRobot on April 3, 2017. The unaudited pro forma combined financial information of iRobot and Robopolis is based on estimates and assumptions, which have been made solely for purposes of developing such pro forma information. These pro forma financial statements are for informational purposes only. They do not purport to indicate the results that would have been realized had the acquisition been completed on the assumed date or for the periods presented, or which may be realized in the future. The actual results reported in periods following the closing date may differ significantly from the pro forma financial information for a number of reasons, including without limitation, differences in the ordinary course of business conducted after the closing date, differences between the assumptions and estimates used to prepare these unaudited pro forma financial statements and the actual amounts, cost savings from operating efficiencies, and the impact of incremental costs in integrating Robopolis.

The pro forma adjustments and related assumptions are described in the accompanying Notes to the Unaudited Pro Forma Combined Financial Statements. The pro forma adjustments are based on assumptions related to the consideration paid, and the allocation thereof to the assets acquired and liabilities assumed of Robopolis, based on preliminary best estimates of fair value. These estimates are based on the most recently available information. The purchase price allocation is dependent upon certain valuation and other studies, including tax analyses, which are not yet final. Accordingly, the pro forma purchase price adjustments are preliminary, subject to further adjustments as additional information becomes available and as additional analyses are performed. There can be no assurances that these final valuations will not result in material changes to the purchase price allocation. The unaudited pro forma combined financial statements should be read in conjunction with:

iROBOT CORPORATION

PRO FORMA COMBINED STATEMENT OF INCOME

(in thousands, except per share amounts)

(unaudited)

The accompanying notes are an integral part of the unaudited pro forma combined financial statements.

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iROBOT CORPORATION

PRO FORMA COMBINED STATEMENT OF INCOME

(in thousands, except per share amounts)

(unaudited)

The accompanying notes are an integral part of the unaudited pro forma combined financial statements.

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iROBOT CORPORATION

PRO FORMA COMBINED BALANCE SHEET

(in thousands, except share data)

(unaudited)

The accompanying notes are an integral part of the unaudited pro forma combined financial statements.

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iROBOT CORPORATION

NOTES TO PRO FORMA COMBINED FINANCIAL STATEMENTS

(unaudited)

The pro forma data is presented for illustrative purposes only and is not necessarily indicative of the operating results that would have occurred had the transactions been consummated as of January 3, 2016. Pro forma adjustments reflect only those adjustments which are factually supportable or estimable, and do not include the impact of cost savings from operating efficiencies, or the impact of incremental costs in integrating Robopolis. The preliminary purchase consideration and purchase price allocation has been presented and does not necessarily represent the final purchase price allocation. The preliminary allocations of the purchase consideration to tangible and intangible assets acquired and liabilities assumed herein were based upon preliminary valuations and our estimates and assumptions are still subject to change.

The historical financial information of Robopolis was presented in euro and was translated to US dollars using the following historical exchange rates:

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A summary of the preliminary purchase price allocation as if the acquisition closed on September 30, 2017 is as follows (in thousands):

The preliminary purchase price allocation identified the following acquired intangible assets. The respective periods over which these assets will be amortized are presented below:

The amount assigned to identifiable intangible assets acquired was based on their preliminary fair values determined as of the acquisition date, primarily using the income approach by discounting to present value the free cash flows expected to be generated by each asset over its remaining life. The discount rate used was approximately 14.5%. Reacquired distribution rights are amortized on an accelerated basis based upon the pattern in which the economic benefits are being utilized. Other intangible assets will be amortized over their respective estimated useful lives on a straight-line basis. The preliminary excess of the purchase price over the net assets acquired was recorded as goodwill and amounted to approximately $80.1 million. In accordance with current accounting standards, the goodwill is not being amortized and will be tested for impairment at least annually. None of the goodwill associated with this transaction will be deductible for tax purposes.

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The following pro forma adjustments are based on preliminary estimates, which may change as additional information is obtained:

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