Arthur J. Gallagher & Co. (AJG) Stock Chart & Stock Price History $327.87 +10.23 (+3.22%) As of 10:32 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Arthur J. Gallagher & Co. Stock Price Performance 5 Day Performance+1.71%1 Month Performance-4.80%3 Month Performance+8.49%6 Month Performance+16.93%Year-To-Date Performance+15.51%1 Year Performance+37.42% Receive AJG Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Arthur J. Gallagher & Co. and its competitors with MarketBeat's FREE daily newsletter. Email Address AJG Stock Chart for Friday, May, 2, 2025 AJG Chart by TradingView Arthur J. Gallagher & Co. Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/01/2025$320.27$317.77-0.78%$319.63$313.412.00 million shs$81.26 billion04/30/2025$316.59$320.27+1.16%$321.16$312.173.03 million shs$81.90 billion04/29/2025$323.73$316.59-2.21%$321.39$315.072.75 million shs$80.96 billion04/28/2025$322.37$323.73+0.42%$326.07$322.191.54 million shs$82.79 billion04/25/2025$331.96$322.37-2.89%$327.34$313.582.16 million shs$82.44 billion04/24/2025$332.23$331.96-0.08%$332.71$326.33961,110 shs$84.89 billion04/23/2025$331.08$332.23+0.35%$336.69$329.75953,648 shs$84.96 billion04/22/2025$319.52$331.08+3.62%$332.00$322.621.04 million shs$84.67 billion04/21/2025$329.29$319.52-2.97%$329.04$315.71837,088 shs$81.71 billion04/18/2025$329.29$329.29$333.26$326.581.20 million shs$84.21 billion Get the Latest News and Ratings for AJG and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Arthur J. Gallagher & Co. and its competitors with MarketBeat's FREE daily newsletter. 04/17/2025$332.75$329.29-1.04%$333.26$326.581.20 million shs$84.21 billion04/16/2025$335.20$332.75-0.73%$339.00$330.14879,259 shs$85.10 billion04/15/2025$343.62$335.20-2.45%$344.66$334.741.31 million shs$85.72 billion04/14/2025$334.60$343.62+2.70%$345.62$336.261.24 million shs$87.88 billion04/11/2025$325.37$334.60+2.84%$335.28$321.431.18 million shs$85.57 billion04/10/2025$324.13$325.37+0.38%$330.96$318.791.57 million shs$83.21 billion04/09/2025$310.68$324.13+4.33%$324.88$304.852.28 million shs$82.89 billion04/09/2025$310.68$324.13+4.33%$324.88$304.852.28 million shs$82.89 billion04/08/2025$310.69$310.680.00%$324.55$306.361.81 million shs$79.45 billion04/08/2025$310.69$310.680.00%$324.55$306.361.81 million shs$79.45 billion04/07/2025$318.97$310.69-2.60%$318.90$301.213.40 million shs$79.45 billion04/04/2025$344.07$318.97-7.29%$344.88$316.632.90 million shs$81.57 billion04/03/2025$344.42$344.07-0.10%$350.70$340.851.32 million shs$87.99 billion04/02/2025$343.70$344.42+0.21%$345.00$339.021.27 million shs$88.08 billion04/01/2025$345.01$343.70-0.38%$345.34$341.03903,760 shs$87.90 billion Related Companies MMC Stock Chart AON Stock Chart BRO Stock Chart EHTH Stock Chart WTW Stock Chart ERIE Stock Chart RYAN Stock Chart EQH Stock Chart CRVL Stock Chart ACT Stock Chart Receive AJG Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Arthur J. Gallagher & Co. and its competitors with MarketBeat's FREE daily newsletter. This page (NYSE:AJG) was last updated on 5/2/2025 by MarketBeat.com Staff From Our PartnersHere’s How to Claim Your Stake in Elon’s Private Company, xAII predict this single breakthrough could make Elon the world’s first trillionaire — and mint more new milliona...Brownstone Research | SponsoredWarning: “DOGE Collapse” imminentElon Strikes Back You may already sense that the tide is turning against Elon Musk and DOGE. Just this week...Altimetry | SponsoredGold Alert: The Truth About Fort Knox Is ComingOwning physical gold isn’t the best way to profit. 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