Wealth Enhancement Advisory Services LLC increased its stake in American Express by 23.7% in Q4, now holding 382,701 shares valued at $113.58 million. Other firms, including Centaurus Financial Inc. and IronOak Wealth LLC, also boosted their positions, contributing to institutional investors owning 84.33% of the stock. Analysts have mixed ratings, with a consensus "Hold" and a target price of $302.57, while Citigroup recently lowered its target from $320 to $300.