Warren Buffett may have cut Berkshire's stake in Apple again in the third quarter
1. Berkshire Hathaway trims its Apple stake by $1.2 billion. 2. Apple stock rose over 24% in the third quarter. 3. Buffett's selling spree reflects concerns over high valuations. 4. Investors await detailed 13F filing for precise Apple holdings. 5. Berkshire has been a net seller of stocks for 12 quarters.