Arthur J. Gallagher AJG Institutional Ownership

Ownership Summary

Arthur J. Gallagher & Co. (NYSE:AJG) is held by 1,222 institutional investors per 13F filings through March 2026.

• These investors held 90.1% of outstanding shares in March 2026, down from 93.7% in December 2025.
• They increased total shares held in Arthur J. Gallagher by 17.35% from the prior quarter, while the number of investors in AJG decreased 9.95% year over year.
• During the quarter, 574 of these 1,222 funds increased positions in AJG, 466 reduced exposure, and 182 held steady.
• Institutional investors collectively held 231.51Mn shares in Arthur J. Gallagher as of March 2026, up by 34.23Mn shares quarter on quarter, and down 9.41Mn shares year over year.
• Jpmorgan Chase & Co is the top holder of Arthur J. Gallagher as of March 31, 2026, with 19.57Mn shares representing 7.61% of outstanding stock.
• The most significant purchases of AJG for the quarter ending March 2026 came from VANGUARD CAPITAL MANAGEMENT LLC (16.7Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (12.42Mn), DODGE & COX (6.47Mn), EAGLE CAPITAL MANAGEMENT LLC (2.67Mn), GTCR LLC (2.37Mn).
• Leading sellers of Arthur J. Gallagher shares for the quarter ending March 2026 were T. Rowe Price Investment Management, Inc. (8.72Mn), Morgan Stanley (3.72Mn), Capital International Investors (3.68Mn), Mitsubishi UFJ Asset Management Co., Ltd. (1.75Mn), Goldman Sachs Group Inc (1.47Mn).
• Arthur J. Gallagher's 10 largest shareholders as of March 2026 include Jpmorgan Chase & Co (19.57Mn), BlackRock, Inc. (19.31Mn), VANGUARD CAPITAL MANAGEMENT LLC (16.7Mn), FMR LLC (14.62Mn), Capital World Investors (13.82Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (12.42Mn), State Street Corp (10.97Mn), DODGE & COX (7.35Mn), GEODE CAPITAL MANAGEMENT, LLC (6.24Mn), Morgan Stanley (4.06Mn) per Business Quant data.