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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

FORM 8-K

CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): June 14, 2021

Ellington Residential Mortgage REIT
(Exact name of registrant specified in its charter)
Maryland001-3589646-0687599
(State or Other Jurisdiction Of Incorporation)(Commission File Number)(IRS Employer Identification No.)
53 Forest Avenue
Old Greenwich, CT 06870
(Address of principal executive offices, zip code)

Registrant's telephone number, including area code: (203) 698-1200

Not applicable
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading Symbol(s)Name of Each Exchange on Which Registered
Common Shares of Beneficial Interest, $0.01 par value per share
EARN
The New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).
Emerging growth company    
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.     



Item 8.01    Other Events.
Ellington Residential Mortgage REIT's (the "Company") estimated book value per common share as of May 31, 2021 was $12.96. This estimate is subject to change and any such change could be material. The Company's registered independent public accountants have not performed the types of reviews or audits of its estimated book value per common share as of May 31, 2021 that they would perform for its quarterly or annual financial statements. It is possible that, if the Company were to undertake a more comprehensive valuation analysis and/or obtain a review or audit from its accountants for the book value estimate set forth above, the Company could determine that its actual book value per common share as of May 31, 2021 differs materially from the estimate set forth above. Further, the Company's results can fluctuate from month to month depending on a variety of factors, some of which are beyond its control and/or difficult to predict, including, without limitation, changes in interest rates, changes in default rates and prepayment speeds, and other changes in market and economic conditions, or the perception that such changes may occur. There can be no assurance that the Company's estimated book value per common share as of May 31, 2021 is indicative of what its results are likely to be as of and for the three- or six-month periods ending June 30, 2021, and the Company undertakes no obligation to update or revise its estimated book value per common share prior to the Company's issuance of financial statements for such three- and six-month periods.
The estimated book value per common share has been prepared by, and is the responsibility of, our management. PricewaterhouseCoopers LLP has not audited, reviewed, compiled, or performed any procedures with respect to this data. Accordingly, PricewaterhouseCoopers LLP does not express an opinion or any other form of assurance with respect thereto.



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 hereunto duly authorized.
ELLINGTON RESIDENTIAL MORTGAGE REIT
Dated:June 14, 2021By:/s/ Christopher Smernoff
Christopher Smernoff
Chief Financial Officer