UPDATE:Greenlight Boosts Apple Stake;Exits EMC,Lockheed Martin

Greenlight Capital Inc., run by hedge fund manager David Einhorn, in the third quarter bought 525,000 more shares in Apple Inc. (AAPL), and added stakes in software provider Broadridge Financial Solutions Inc. (BR), computer-equipment company Ingram Micro Inc. (IM), and semiconductor solutions provider Verigy Ltd. (VRGY), according to regulatory filings Monday.

The value of Greenlight's stock holdings was $4.02 billion at the end of the third quarter, up from $3.32 billion at the end of the second quarter. The increase was due to a combination of purchases and sales of shares and changes in market value.

The most recent filings, which contained the fund's stock holdings as of Sept. 30, showed Greenlight also boosted holdings in offshore-drilling company Ensco PLC (ESV), homebuilding and mortgage-banking company NVR Inc. (NVR), timing-technology company Symmetricom Inc. (SYMM) and reinsurer Transatlantic Holdings Inc. (TRH).

Meanwhile, Greenlight exited several stocks, including maker of corporate data-storage equipment EMC Corp. (EMC) and defense and aerospace company Lockheed Martin Corp. (LMT). Einhorn's exits came before Lockheed reported a 28% drop in third-quarter earnings on a charge related to an executive buyout program, and EMC's 58% jump in third-quarter profit on higher revenue and surging margins.

Einhorn specializes in long/short equity trading. He is particularly known for shorting the shares of Lehman Brothers Holdings Inc., which collapsed during the financial crisis.

Last month, he said he was shorting St. Joe Co. (JOE), a Jacksonville, Fla., real-estate development company. Einhorn said St. Joe is "way, way overvalued" as its holdings of Florida real estate are worth nowhere near the $746 million the company says they are worth. St. Joe's shares plunged nearly 10% that day and continued to declined. They closed 3% lower Monday at $19.04, down from more than $24 before Einhorn talked about the stock at a conference.

-Amy Or, Dow Jones Newswires, [phone], [e-mail]