NEW YORK ( TheStreet) -- Hedge fund titan David Einhorn bought more Apple ( AAPL) and increased positions in tech stocks during the third quarter, according to the latest regulatory filing with Securities and Exchange Commission. New additions to the portfolio of Einhorn's fund Greenlight Capital included financial solutions provider Broadridge Financial ( BR), supply-chain solutions provider Ingram Micro ( IM) and semiconductor player Verigy ( VRGY). Greenlight made a complete exit from EMC ( EMC) and Lockheed Martin ( LMT). Meanwhile, Einhorn increased stakes in earlier buys such as Apple, which he bought in the April-June quarter, Ensco ( ESV), homebuilder NVR ( NVR) and medical technology company Carefusion ( CFN) >>View David Einhorn's Portfolio Investors managing more than $100 million in assets are required to report their holdings every quarter in a 13F filing within 45 days from the end of the quarter. The managers do not need to disclose short positions or investments in non-U.S. listed securities. Einhorn is best known for shorting Lehman Brothers several months before the troubled investment bank filed for bankruptcy. Most recently, Einhorn revealed he was short real estate developer St.Joe ( JOE), taking on famed mutual fund value investor Bruce Berkowitz of Fairholme Management who has a significant stake in the company. -- Written by Shanthi Venkataraman in New York >To contact the writer of this article, click here: Shanthi Venkataraman. >To follow the writer on Twitter, go to http://twitter.com/shavenk. >To submit a news tip, send an email to: firstname.lastname@example.org.