Berkshire Hathaway's decision to dissolve its stake in Marsh & McLennan Companies could potentially lead to a decrease in the company's stock price in the short term, as it may be perceived as a lack of confidence in the company's future performance.

Berkshire Hathaway's decision to dissolve its stake in Marsh & McLennan Companies may not directly impact its stock price in the short term. However, it could potentially free up capital for other investments, which could have a positive impact in the long term.