6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIESEXCHANGE ACT OF 1934

For the month of September 2021

Commission File Number: 001-31909

ASPEN INSURANCE HOLDINGS LIMITED

(Translation of registrant’s name into English)

141 Front Street

Hamilton HM 19

Bermuda

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  ý Form 40-F  ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): Yes ¨ No ý

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): Yes ¨ No ý

On September 2, 2021, Aspen Insurance Holdings Limited (“Aspen”) issued a press release announcing dividends on its preference shares. The dividends are payable on October 1, 2021 to the holders of record as of the close of business on September 15, 2021.

    The press release, furnished as Exhibit 99.1 to this Form 6-K, is incorporated by reference as part of this Form 6-K.

EXHIBIT INDEX

Exhibit

99.1        Press Release dated September 2, 2021.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	ASPEN INSURANCE HOLDINGS LIMITED
Dated: September 2, 2021	By:	/s/ Kevin Chidwick
	Name:	Kevin Chidwick
	Title:	Chief Financial Officer

EX-99.1

Exhibit 99.1

PRESS

RELEASE

Aspen Declares Dividends on Preference Shares

Hamilton, Bermuda, September 2, 2021 – Aspen Insurance Holdings Limited (“Aspen”) (NYSE:AHL) announced today that the Board of Directors has declared the following dividends on its Preference Shares:

•Quarterly dividend of $0.3719 per share on its 5.95% Fixed-to-Floating Rate Perpetual Non-Cumulative Preference Shares with a $25 liquidation preference per share (NYSE:AHL PRC);

•Quarterly dividend of $0.3516 per share on its 5.625% Perpetual Non-Cumulative Preference Shares with a $25 liquidation preference per share (NYSE:AHL PRD); and

•Quarterly dividend of $351.56 per share on its 5.625% Perpetual Non-Cumulative Preference Shares with a liquidation preference of $25,000 per share, represented by depositary shares (NYSE: AHL PRE), each representing a 1/1000th interest in a share, holders of which depositary shares will receive $0.35156 per depositary share.

The above dividends will be payable on October 1, 2021, to holders of record as of September 15, 2021.

- Ends -

About Aspen Insurance Holdings Limited

Aspen provides reinsurance and insurance coverage to clients in various domestic and global markets through wholly-owned subsidiaries and offices in Australia, Bermuda, Canada, Singapore, Switzerland, the United Kingdom and the United States. For the year ended December 31, 2020, Aspen reported $13.2 billion in total assets, $7.2 billion in gross reserves, $3.0 billion in total shareholders’ equity and $3.7 billion in gross written premiums. Aspen's operating subsidiaries have been assigned a rating of “A-” by Standard & Poor’s Financial Services LLC and an “A” (“Excellent”) by A.M. Best Company Inc. For more information about Aspen, please visit www.aspen.co.

Cautionary Statement Regarding Forward-Looking Statements:

This communication and other written or oral statements made by or on behalf of Aspen contain forwardlooking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and 2 Section 21E of the Securities Exchange Act of 1934, as amended, that are made under the “safe harbor” provisions of The Private Securities Litigation Reform Act of 1995. In particular, statements using words such as “may,” “seek,” “will,” “likely,” “assume,” “estimate,” “expect,” “anticipate,” “intend,” “believe,” “do not believe,” “aim,” “predict,” “plan,” “project,” “continue,” “potential,” “guidance,” “objective,” “outlook,” “trends,” “future,” “could,” “would,” “should,” “target,” “on track” or their negatives or variations, and similar terminology and words of similar import, generally involve future or forward-looking statements. Forward-looking statements reflect Aspen’s current views, plans or expectations with respect to future events and financial performance. They are inherently subject to significant business, economic, competitive and other risks, uncertainties and contingencies. The inclusion of forward-looking statements in this or any other communication should

not be considered as a representation by Aspen or any other person that current plans or expectations will be achieved. Forward-looking statements speak only as of the date on which they are made, and Aspen undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future developments or otherwise, except as otherwise required by law.

There are or will be important factors that could cause actual results to differ materially from those expressed in any such forward-looking statements, including, but not limited to, factors affecting future results disclosed in Aspen’s filings with the SEC, including but not limited to those discussed under Item 3D, “Risk Factors” in Aspen’s Annual Report on Form 20-F for the year ended December 31, 2020, each of which is incorporated herein by reference.

For further information:

Josh Brekenfeld Corporate Development and Communications Director

Josh.brekenfeld@aspen.co

+ 44 (0) 7884 664801

Cecile Locurto

Vice President, Group Communications

Cecile.locurto@aspen.co

646.352.2828