5 OFFERING OVERVIEW Issuer Security Offered Offering Size Expected Security Ratings¹ Format Term Call Use of Proceeds Joint Book-Running Managers Atlantic Union Bankshares Corporation (NYSE: AUB) Fixed-to-Floating Rate Subordinated Notes Due 2036 $200 million BBB (Stable) by Kroll Bond Rating Agency SEC Registered 10 Years 5 Years Redeem $168.0 million aggregate principal amount of the Company's outstanding 4.25% Fixed-to-Floating Rate Subordinated Notes due 2029 and general corporate purposes, including providing capital to Atlantic Union Bank to support its growth Keefe, Bruyette & Woods, A Stifel Company | Piper Sandler 1. An explanation of the significance of ratings may be obtained from the rating agency. Generally, rating agencies base their ratings on such material and information, and such of their own investigations, studies and assumptions, as they deem appropriate. The rating of the subordinated notes should be evaluated independently from similar ratings of other securities. A credit rating of a security is not a recommendation to buy, sell or hold securities and may be subject to review, revision, suspension, reduction or withdrawal at any time by the assigning rating agency. No report of any rating agency is incorporated by reference herein. Deal Roadshow Only

41 PRO FORMA CONSOLIDATED CAPITAL Note: Assumes 0% risk weighting on net subordinated debt proceeds 1. For illustrative purposes only, assumes a $200 million subordinated debt raise, net of customary offering and underwriting expenses, for net proceeds of $197.5 million. Qualifying subordinated debt is included in Tier 2 capital at its gross outstanding principal (par) amount of $200 million 2. Reflects the redemption at par of existing subordinated notes of $168 million, which represents $101 million net capital impact to qualifying subordinated debt (60% Tier 2 phase out due to maturity schedule) 3. Non-GAAP financial measure. Please refer to the appendix for a reconciliation of the non-GAAP financial measure to the most directly comparable GAAP measure. As Reported $200M Redemption Pro Forma AUB Sub Debt of Existing AUB ($ in millions) 6/30/2026 Issuance 1 Sub Debt 2 6/30/2026 Regulatory Capital Components Common Equity Tier 1 $3,271 $3,271 Additional Tier 1 Capital 166 166 Tier 1 Capital $3,438 $3,438 Qualifying loan loss reserve $305 $305 Plus: Qualifying Subordinated Debt 537 200 (101) 636 Plus: Additional TRUP 167 167 Total Tier 2 $1,008 $1,107 Total Risk Based Capital $4,446 200 (101) $4,545 Assets for Regulatory Ratios Risk Adjusted Assets $31,421 $31,421 Average assets for leverage ratio 35,721 198 (168) 35,750 TCE / TA Components Tangible Common Equity $2,947 $2,947 Actual Assets 38,100 198 (168) 38,129 Tangible Assets 36,060 198 (168) 36,090 Capital Ratios Tangible Common Equity / Tangible Assets 8.2% 8.2% Tier 1 Leverage Ratio 9.6% 9.6% Common Equity Tier 1 Ratio 10.4% 10.4% Tier 1 Risk-Based Ratio 10.9% 10.9% Total Risk-Based Ratio 14.1% 14.5% 3 3 Deal Roadshow Only

43 DOUBLE LEVERAGE AND INTEREST COVERAGE Deal Roadshow Only Fiscal Year Ended, Three Months Ended 6/30/2026, ($ in millions) 2022 2023 2024 2025 Standalone Offering Adjustments Pro Forma 1 Double Leverage Bank-Level Equity $2,666 $2,845 $3,475 $5,716 $5,792 $5 $5,797 Consolidated Equity 2,373 2,556 3,143 5,006 5,153 0 5,153 Double Leverage Ratio 112% 111% 111% 114% 112% 112% Interest Coverage Earnings: Income From Continuing Operations Before Taxes $280.0 $239.9 $259.8 $337.0 $204.5 ($0.2) $204.3 (+) Total Debt Interest 20.0 46.7 45.1 51.0 15.3 0.4 15.7 Earnings (Before Corporate Debt Interest) $299.9 $286.6 $304.9 $388.0 $219.8 $220.0 (+) Total Deposit Interest 56.2 296.7 483.9 615.5 146.4 $146.4 Earnings (Before Corporate Debt Interest + Deposit Interest) $356.1 $583.3 $788.8 $1,003.6 $366.2 $366.4 Interest: Total Debt Interest $20.0 $46.7 $45.1 $51.0 $15.3 $0.4 $15.7 Interest Expense Excluding Deposit Interest $20.0 $46.7 $45.1 $51.0 $15.3 $15.7 Total Deposit Interest 56.2 296.7 483.9 615.5 146.4 146.4 Interest Expense Including Deposit Interest $76.2 $343.4 $529.0 $666.6 $161.7 $162.1 Adjusted Interest Coverage (Ex. Deposit Interest Expense) - A / C 15.0x 6.1x 6.8x 7.6x 14.4x 14.0x Adjusted Interest Coverage (Inc. Deposit Interest Expense) - B / D 4.7x 1.7x 1.5x 1.5x 2.3x 2.3x A B C D Figures may not foot due to rounding 1. For illustrative purposes only. Assumes a $200 million subordinated debt raise with market standard fees and expenses. Assumes $5 million of proceeds down streamed as equity to the bank. Remainder of proceeds held as cash at the holding company. Includes redemption at par of existing subordinated debt notes of $168 million due 11/15/2029 and with a floating rate of 3M Term SOFR + 262 bps