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Historical Stock Prices of delisted company [duplicate]
You need a source of delisted historical data. Such data is typically only available from paid sources. According to my records, Lawson Software Inc listed on the NASDAQ on 7 Dec 2001 and delisted on 6 Jul 2011.  Its final traded price was $11.23.  It was taken over by Infor who bid $11.25 per share. Source: Symbol LWSN-201107 within Premium Data US delisted stocks historical data set available from http://www.premiumdata.net/products/premiumdata/ushistorical.php Disclosure: I am a co-owner of Norgate / Premium Data.