0001593547 2026-08-03 2026-08-03 0001593547 aiciii:S000052180Member 2026-08-03 2026-08-03 false 2026-08-03 Advisors' Inner Circle Fund III N-1A 497 0001593547 THE ADVISORS’ INNER CIRCLE FUND III PineBridge Dynamic Asset Allocation Fund (the “Fund”) Supplement dated August 3, 2026 to the Fund’s Summary Prospectus, Prospectus and Statement of Additional Information (the “SAI”), each dated March 1, 2026 This supplement provides new and additional information beyond that contained in the Summary Prospectus, Prospectus and SAI and should be read in conjunction with the Summary Prospectus, Prospectus and SAI. <table cellpadding="0" cellspacing="0" style="width: 100%; font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top"> <td style="width: 0"></td><td style="width: 0.25in">I.</td><td style="text-align: justify">Effective September 30, 2026, the name of the Fund is changed to MetLife Dynamic Asset Allocation Fund. Accordingly, effective September 30, 2026, the Summary Prospectus, Prospectus and SAI are hereby amended and supplemented as follows:</td></tr></table> <table cellpadding="0" cellspacing="0" style="width: 100%; font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top"> <td style="width: 0.25in"></td><td style="width: 0.25in">1.</td><td style="text-align: justify">All references to “PineBridge Dynamic Asset Allocation Fund” are deleted and replaced with “MetLife Dynamic Asset Allocation Fund.”</td></tr></table> <table cellpadding="0" cellspacing="0" style="width: 100%; font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top"> <td style="width: 0"></td><td style="width: 0.25in">II.</td><td style="text-align: justify">Effective immediately, the references to the Fund’s website in the Summary Prospectus, Prospectus and SAI are hereby revised as follows:</td></tr></table> <table cellpadding="0" cellspacing="0" style="width: 100%; font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top"> <td style="width: 0.25in"></td><td style="width: 0.25in">1.</td><td style="text-align: justify">All references to “www.pinebridge.com” are deleted and replaced with “https://metlife.com/investments/en-us/.”</td></tr></table> <table cellpadding="0" cellspacing="0" style="width: 100%; font: 11pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><tr style="vertical-align: top"> <td style="width: 0.25in"></td><td style="width: 0.25in">2.</td><td style="text-align: justify">All references to “https://www.pinebridge.com/en-us/institution/funds/pinebridge-dynamic-asset-allocation-fund-40act/institutional” or “https://www.pinebridge.com/en-us/institution/funds/ pinebridge-dynamic-asset-allocation-fund/institutional” are deleted and replaced with “https://metlife.com/investments/en-us/funds/fund/?fund=pinebridge-dynamic-asset-allocation-fund&unit=institutional&lang=en-us/.”</td></tr></table> PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE PBI-SK-008-0100 2026-03-01