The news came in a regulatory filing from Berkshire Hathaway, which had held 41.4 million Oracle shares at the end of the third quarter. The shares were worth $2.13 billion at the time.
Oracle stock has risen 4 percent in the past year. In December the stock rose after the company reported better-than-expected fiscal second-quarter earnings and flat revenue.
The Oracle move was the only liquidation in the quarter for Warren Buffett's Berkshire Hathaway. The company had a position in Oracle for a single quarter.