Arthur J. Gallagher & Co. (AJG) Stock Chart & Stock Price History $335.20 -7.72 (-2.25%) Closing price 04/15/2025 03:59 PM EasternExtended Trading$309.12 -26.08 (-7.78%) As of 04/15/2025 07:34 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours 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+3.02%1 Month Performance+3.03%3 Month Performance+15.35%6 Month Performance+16.62%Year-To-Date Performance+18.09%1 Year Performance+44.43% 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 Wednesday, April, 16, 2025 AJG Chart by TradingViewRemove Ads 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 Capitalization04/15/2025$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 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. 04/03/2025$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 billion03/31/2025$340.59$345.01+1.30%$346.95$341.001.77 million shs$88.23 billion03/28/2025$341.78$340.59-0.35%$343.58$339.521.36 million shs$87.10 billion03/27/2025$336.56$341.78+1.55%$341.89$335.251.33 million shs$87.40 billion03/26/2025$337.55$336.56-0.29%$340.11$336.101.35 million shs$85.72 billion03/25/2025$338.10$337.55-0.16%$338.81$333.201.43 million shs$85.97 billion03/24/2025$332.02$338.10+1.83%$339.52$332.081.23 million shs$86.11 billion03/21/2025$334.85$332.02-0.84%$335.07$330.062.68 million shs$84.57 billion03/20/2025$326.50$334.85+2.56%$335.66$326.341.50 million shs$85.29 billion03/19/2025$329.76$326.50-0.99%$330.40$323.82974,047 shs$83.16 billion03/18/2025$329.32$329.76+0.13%$333.00$328.461.42 million shs$83.99 billion03/17/2025$325.35$329.32+1.22%$329.64$322.001.17 million shs$83.88 billion03/14/2025$322.89$325.35+0.76%$325.77$321.761.27 million shs$82.87 billion Related Companies MMC Stock Chart AON Stock Chart BRO Stock Chart EHTH Stock Chart WTW Stock Chart RYAN Stock Chart ERIE Stock Chart EQH Stock Chart CRVL Stock Chart BRP 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 4/16/2025 by MarketBeat.com Staff From Our PartnersTwo Unmistakable Patterns Return…The signs suggest we're entering one of those rare periods now. That's why Central Banks are buying gold at...Golden Portfolio | SponsoredWhy Elon put $51 million into thisWhy Elon Musk Just Invested $51 Million Into Brand New “Miracle Metal” Developed by MIT ScientistsTrue Market Insiders | SponsoredCrypto’s crashing…but we’re still profitingMost traders are panicking right now. Bitcoin’s dropping. Altcoins are bleeding. The stock market’s a mess....Crypto Swap Profits | SponsoredIs it CRAZY to still want reliable profits, despite this market?Larry Benedict, the acclaimed "Market Wizard," is calling an emergency briefing now... 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