NEW YORK (TheStreet) -- Billionaire investor Warren Buffett's Berkshire Hathaway sold all its Bank of America(BAC) - Get Report shares, according to the latest filing with the Securities and Exchange Commission.

Berkshire's stake in Bank of America was relatively small at about 5 million shares, valued at about $75 million at today's value. Still, it was among significant exits made during the fourth quarter. Berkshire also unloaded

Fiserv

(FISV) - Get Report

, which it bought in the second quarter,

Nike

(NKE) - Get Report

,

Nestle

,

Nalco

(NLC)

,

Lowe's

(LOW) - Get Report

and

Comcast

(CMCSA) - Get Report

.

But he added to his position in longtime favorite

Wells Fargo

(WFC) - Get Report

, buying 6.2 million shares during the quarter. Wells Fargo now accounts for about 20% of the $52.5 billion portfolio.

Buffett made no new purchases. He pared positions in

Bank of New York Mellon

(BK) - Get Report

and

Moody's

(MCO) - Get Report

.

The rest of its holdings remained unchanged.

You can view

Warren Buffett's holdings

at Stockpickr.

--Written by Shanthi Bharatwaj in New York

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