hologic , inc .notes to consolidated financial statements ( continued ) ( in thousands , except per share data ) its supply chain and improve manufacturing margins .the combination of the companies should also facilitate further manufacturing efficiencies and accelerate research and development of new detector products .aeg was a privately held group of companies headquartered in warstein , germany , with manufacturing operations in germany , china and the united states .the aggregate purchase price for aeg was approximately $ 31300 ( subject to adjustment ) consisting of eur $ 24100 in cash and 110 shares of hologic common stock valued at $ 5300 , and approximately $ 1900 for acquisition related fees and expenses .the company determined the fair value of the shares issued in connection with the acquisition in accordance with eitf issue no .99-12 , determination of the measurement date for the market price of acquirer securities issued in a purchase business combination .these 110 shares were subject to contingent put options pursuant to which the holders had the option to resell the shares to the company during a period of one year following the completion of the acquisition if the closing price of the company 2019s stock falls and remains below a threshold price .the put options were never exercised and expired on may 2 , 2007 .the acquisition also provided for a one-year earn out of eur 1700 ( approximately $ 2000 usd ) which was payable in cash if aeg calendar year 2006 earnings , as defined , exceeded a pre-determined amount .aeg 2019s 2006 earnings did not exceed such pre-determined amounts and no payment was made .the components and allocation of the purchase price , consists of the following approximate amounts: .
[['net tangible assets acquired as of may 2 2006', '$ 24800'], ['in-process research and development', '600'], ['developed technology and know how', '1900'], ['customer relationship', '800'], ['trade name', '400'], ['deferred income taxes', '-3000 ( 3000 )'], ['goodwill', '5800'], ['estimated purchase price', '$ 31300']]
the company implemented a plan to restructure certain of aeg 2019s historical activities .the company originally recorded a liability of approximately $ 2100 in accordance with eitf issue no .95-3 , recognition of liabilities in connection with a purchase business combination , related to the termination of certain employees under this plan .upon completion of the plan in fiscal 2007 the company reduced this liability by approximately $ 241 with a corresponding reduction in goodwill .all amounts have been paid as of september 29 , 2007 .as part of the aeg acquisition the company acquired a minority interest in the equity securities of a private german company .the company estimated the fair value of these securities to be approximately $ 1400 in its original purchase price allocation .during the year ended september 29 , 2007 , the company sold these securities for proceeds of approximately $ 2150 .the difference of approximately $ 750 between the preliminary fair value estimate and proceeds upon sale has been recorded as a reduction of goodwill .the final purchase price allocations were completed within one year of the acquisition and the adjustments did not have a material impact on the company 2019s financial position or results of operations .there have been no other material changes to the purchase price allocation as disclosed in the company 2019s form 10-k for the year ended september 30 , 2006 .as part of the purchase price allocation , all intangible assets that were a part of the acquisition were identified and valued .it was determined that only customer relationship , trade name , developed technology and know how and in-process research and development had separately identifiable values .the fair value of these intangible assets was determined through the application of the income approach .customer relationship represents aeg 2019s high dependency on a small number of large accounts .aeg markets its products through distributors as well as directly to its own customers .trade name represents aeg 2019s product names that the company intends to continue to use .developed technology and know how represents currently marketable .

Question: what portion of the estimated purchase price is dedicated to goodwill?
Answer: 18.5%