UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-A

FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES

PURSUANT TO SECTION 12(b) or 12(g) oF

THE SECURITIES EXCHANGE ACT oF 1934

ATLANTIC UNION BANKSHARES CORPORATION

(Exact name of registrant as specified in its charter)

Securities to be registered pursuant to Section 12(b) of the Act:

If this form relates to the registration of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), please check the following box. x

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box. ¨

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ¨

 Securities Act registration statement or Regulation A offering statement file number to which this form relates: 333-220398

Securities to be registered pursuant to Section 12(g) of the Act:

None

(Title of Class)

INFORMATION REQUIRED IN REGISTRATION STATEMENT

The securities registered hereby are depositary shares (the “Depositary Shares”) of Atlantic Union Bankshares Corporation (the “Company”), each representing a 1/400th ownership interest in a share of the Company’s 6.875% Perpetual Non-Cumulative Preferred Stock, Series A, par value $10.00 per share (the “Preferred Stock”), with a liquidation preference of $10,000 per share of Preferred Stock (equivalent to $25 per Depositary Share). The descriptions set forth under the sections “Description of Series A Preferred Stock” and “Description of Depositary Shares” in the prospectus supplement dated June 2, 2020, as filed with the Securities and Exchange Commission (the “Commission”) on June 3, 2020 pursuant to Rule 424(b) under the Securities Act of 1933, as amended, to the prospectus (the “Base Prospectus”) included in the Company’s post-effective amendment no. 1 to its automatic shelf registration statement on Form S-3 (File No. 333-220398), as filed with the Commission on June 2, 2020, and the descriptions set forth under the sections “Description of Preferred Stock” and “Description of Depositary Shares” in the Base Prospectus are incorporated herein by reference.

The following exhibits are filed as a part of this Registration Statement:

SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.