Exhibit 99.1

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Atlantic Union Bankshares Corporation To Release Third Quarter 2023 Financial Results

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Richmond, Va., September 28, 2023 – Atlantic Union Bankshares Corporation (the “Company”) today announced that it will release third quarter 2023 financial results before the market opens on Thursday, October 19, 2023.

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Following the release, the Company will host a conference call and webcast for investors at 9:00 a.m. Eastern Time on Thursday, October 19, 2023.

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The listen-only webcast and the accompanying slides can be accessed at: https://edge.media-server.com/mmc/p/xamg8swa.

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For analysts who wish to participate in the conference call, please register at the following URL: https://register.vevent.com/register/BI2b71d4244e9e49b393decce9c92d4054. To participate in the conference call, you must use the link to receive an audio dial-in number and an Access PIN.

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A replay of the webcast, and the accompanying slides, will be available on the Company’s website for 90 days at: https://investors.atlanticunionbank.com/.

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About Atlantic Union Bankshares Corporation

Headquartered in Richmond, Virginia, Atlantic Union Bankshares Corporation (NYSE: AUB) is the holding company for Atlantic Union Bank. Atlantic Union Bank has 109 branches and approximately 125 ATMs located throughout Virginia, and in portions of Maryland and North Carolina. Certain non-bank financial services affiliates of Atlantic Union Bank include: Atlantic Union Equipment Finance, Inc., which provides equipment financing; Atlantic Union Financial Consultants, LLC, which provides brokerage services; and Union Insurance Group, LLC, which offers various lines of insurance products.

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Contact:

Bill Cimino, Senior Vice President and Director of Investor Relations 804.448.0937