AUB · Quarterly Report (Form 10-Q) · Filed August 5, 2025

Atlantic Union Bankshares Corp — 10-Q exhibit

aub-20250630xex15d01.htm

Atlantic Union Bankshares Corp on Boardroom Alpha

Exhibit 15.1

The Shareholders and Board of Directors of Atlantic Union Bankshares Corporation:

We are aware of the incorporation by reference in the Registration Statements (Form S-8 No. 333-287459, Form S-8 No. 333-286298, Form S-3ASR No. 333-281290, Form S-3 No. 333-102012, Form S-3 No. 333-81199, Form S-8 No. 333-255994, Form S-8 No. 333-203580, Form S-8 No. 333-193364, Form S-8 No. 333-175808, Form S-8 No. 333-113842, Form S-8 No. 333-113839 and Form S-8 No. 333-228455) of Atlantic Union Bankshares Corporation of our report dated August 5, 2025 relating to the unaudited consolidated interim financial statements of Atlantic Union Bankshares Corporation that are included in its Form 10-Q for the quarter ended June 30, 2025.

/s/ Ernst & Young LLP

Richmond, Virginia

August 5, 2025

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