** Aon Plc AON.N up 1.3% at $367 in light premarket trading after brokerage Morgan Stanley raises insurance brokerage company to "overweight" from "equal-weight", increases PT to $430

** MS's new PT about 19% above stock's last close

** Brokerage says co's investments into talent in construction, energy, health and others should start reflecting in productivity from second half of 2025

** Says company's plans for 4%-8% increase in priority client-facing roles could drive $300,000-350,000 in revenue per hire

** Adds, despite current near-term pricing weakness, data and analytics investments could see margins expand more than peers and should continue taking their market share

** Brokerage expects volumes on M&A services likely to increase, and as AON expands services geographically, to include not just private equity but also corporate clients

** Up to last close, stock had risen nearly 1% YTD, vs. benchmark S&P 500's .SPX 11% rise

(Reporting by Johann M Cherian in Bengaluru)

((johann.mcherian@thomsonreuters.com;))