UPDATE 1-Buffett's Berkshire builds Deere stake, dumps Exxon
(Recasts, adds analyst comment, includes background, other portfolio changes)
NEW YORK Feb 17 (Reuters) - Warren Buffett's Berkshire Hathaway Inc on Tuesday disclosed a 5 percent stake in agricultural equipment maker Deere & Co and said it shed a $3.74 billion investment in oil company Exxon Mobil Corp as oil prices plunged.
The changes were among several that Berkshire made in its common stock investments in the fourth quarter, according to a U.S. Securities and Exchange Commission filing detailing the conglomerate's domestic equity investments as of Dec. 31.
Berkshire began accumulating the bulk of its 17.1 million-share stake in Deere, worth $1.51 billion at year end, in the third quarter of 2014, but had not previously disclosed it. The SEC often lets Buffett quietly accumulate large stakes to deter copycats.
Deere shares rose 1.2 percent in after-market trading.
Shares of companies often rise after Berkshire reveals new investments because some investors consider it a vote of confidence by Buffett and try to copy him.
Deere declined to comment.
Berkshire's decision to dispose of its entire 41 million-share stake in Exxon Mobil was unusual for Berkshire because the stake had been recently acquired, dating only to 2013.
Exxon shares have outperformed many peers in recent months, losing only about 15 percent of their value from June through January as oil prices slumped by more than half. Continued...