Berkshire Hathaway Unveils $6.7 Billion Stake in Chubb

Warren Buffett's conglomerate reveals strategic investment in Zurich-based insurer after months of speculation.

Berkshire Hathaway's stake in Chubb is nearly 26 million shares, making it the conglomerate's ninth largest holding.
Chubb's stock surged over 7% in after-hours trading following the disclosure.
The SEC allowed Berkshire to keep the investment confidential while it was building its position.
Berkshire's investment strategy focuses heavily on the insurance sector, with Chubb fitting well into its portfolio.
Buffett also reduced stakes in Apple and Paramount, while boosting holdings in Liberty Media and Occidental Petroleum.