Intech Investment Management 13F: Cuts AON Stake by $3.9M

Intech Investment Management Adjusts Holdings in Aon plc

Intech Investment Management reduced its stake in Aon plc (NYSE: AON) during the period, according to a Form 13F filing with the Securities and Exchange Commission. The filing captures portfolio holdings as of May 8, 2026, and offers a backward-looking view that may not reflect the firm's current share count.

Position Details From the Latest Filing

During the period, Intech Investment Management trimmed its investment in the professional services firm by selling 11,810 shares. This marked a 7.6% decrease from its prior holding of 156,255 shares. The fund ended the period with 144,445 shares of Aon plc. Based on reported metrics, the remaining stake carried an estimated market value of $47.2 million.

Insider Buying and Selling at Aon plc

Recent insider activity at Aon plc featured several transactions on June 25, 2026. Richard Notebaert, Gloria Santona, Sarah Smith, Byron Spruell, and Jin-Yong Cai each acquired 776 shares. Meanwhile, Adriana Karaboutis parted with 186 shares at a price of $315.95 per share, resulting in a total value of $58,766.70.

Analysts Set New Price Targets

Wall Street firms updated their outlooks on Aon plc across several dates. On October 12, 2026, Wells Fargo maintained an Overweight rating and set a price target of $323.00. On the same day, Keefe, Bruyette & Woods kept an Outperform rating with a $342.00 target. Mizuho maintained an Outperform rating with a target of $324.00 on October 7, 2026, while Barclays kept an Equal-Weight rating and a $317.00 target. Cantor Fitzgerald maintained an Overweight rating with a $400.00 target on October 7, 2026. Morgan Stanley kept an Overweight rating with a $350.00 target on October 6, 2026, and JP Morgan maintained an Overweight rating with a target of $362.00 on October 1, 2026. Earlier, on September 16, 2026, Mizuho maintained an Outperform rating with a $366.00 target.

Business Operations and Market Context

Aon plc functions as a global professional services firm that delivers commercial risk, health, and wealth solutions to corporate clients around the world. The company operates through core segments that span insurance brokerage, retirement consulting, and reinsurance services. Institutional adjustments like the one reported by Intech Investment Management occur regularly as portfolio managers rebalance their allocations across different market sectors.

Monitoring Future SEC Filings

Investors tracking Aon plc should watch for upcoming institutional reports and regulatory disclosures to see how large money managers adjust their positions next. Because 13F filings look backward at completed quarters, these disclosures serve as historical snapshots rather than active trading signals. The company's next scheduled earnings report is expected around October 30, 2026.