Financial report context:
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: .

Financial table:
net tangible assets acquired as of may 2 2006: in-process research and development; $ 24800: 600
net tangible assets acquired as of may 2 2006: developed technology and know how; $ 24800: 1900
net tangible assets acquired as of may 2 2006: customer relationship; $ 24800: 800
net tangible assets acquired as of may 2 2006: trade name; $ 24800: 400
net tangible assets acquired as of may 2 2006: deferred income taxes; $ 24800: -3000 ( 3000 )
net tangible assets acquired as of may 2 2006: goodwill; $ 24800: 5800
net tangible assets acquired as of may 2 2006: estimated purchase price; $ 24800: $ 31300

Additional report context:
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%