Berkshire Hathaway (NYSE:BRK) disclosed its long-awaited Schedule 13F/HR today containing Warren Buffet's latest holdings. Among other things, the document showed that the Oracle of Omaha has loaded up on Dow Jones shares while hiding his stake in two railroad companies.

The Schedule 13F/HR statement showed new stakes in Bank of America (NYSE:BAC) and Dow Jones (NYSE:DJ). The famous investor also raised his stakes in several companies, including Johnson & Johnson (NYSE:JNJ), Nike Inc. (NYSE:NKE), Proctor & Gamble (NYSE:PG), US Bancorp (NYSE:USB) and others. Buffet appears to be bullish on banking stocks while taking a short-term position in Dow Jones despite his bearish sentiment on the newspaper business.

Interestingly, Warren Buffet decided to request permission from the SEC to not disclose its railroad holdings in Union Pacific (NYSE:UNP) and Norfolk Southern (NYSE:NSC). These requests are somewhat standard for Buffet given his widespread notoriety, but still led to much speculation as to his plans for the companies. Railroads have become a target for many investors as many remain substantially undervalued.

In the end, Warren Buffet's list of holdings continue to have an impact on investors. Watching Berkshire Hathaway's Schedule 13F/HR and Form 4s can be extremely useful in tracking the activity of the famous investor. You can setup free email and RSS alerts to track his holdings and more at SECFilings.com!