X0306 4 2021-06-17 1 0001560672 Ellington Residential Mortgage REIT EARN 0001404073 Blackstone Holdings III L.P. C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001575483 Blackstone Tactical Opportunities EARN Holdings L.L.C. C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001575479 BTO EARN Manager L.L.C. C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001575478 BTOA L.L.C. C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001478809 Blackstone Holdings III GP L.P. C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001478815 Blackstone Holdings III GP Management L.L.C. C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001393818 Blackstone Group Inc 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001404071 Blackstone Group Management L.L.C. C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001070844 SCHWARZMAN STEPHEN A C/O THE BLACKSTONE GROUP INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 Common Stock 2021-06-17 4 S 0 2675000 12.80 D 628578 I See Footnotes This amount represents the $13.20 public offering price per common share of beneficial interest, $0.01 par value per share ("Common Shares") of the Issuer, less the underwriting discount of $0.40 per share. These shares represent Common Shares that are directly held by Blackstone Tactical Opportunities EARN Holdings L.L.C. ("EARN Holdings"). BTO EARN Manager L.L.C. is the managing member of EARN Holdings. BTOA L.L.C. is the sole member of BTO EARN Manager L.L.C. Blackstone Holdings III L.P. is the managing member of BTOA L.L.C. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group Inc. The sole holder of the Series II preferred stock of The Blackstone Group Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. Each of such Blackstone entities and Mr. Schwarzman may be deemed to beneficially own the shares beneficially owned by EARN Holdings directly or indirectly controlled by it or him, but each (other than EARN Holdings to the extent of its direct holdings) disclaims beneficial ownership of such shares, except to the extent of such Reporting Person's pecuniary interest therein. The filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Persons are the beneficial owners of any securities reported herein. BLACKSTONE TACTICAL OPPORTUNITIES EARN HOLDINGS LLC By:BTO EARN Manager LLC, its MM By:BTOA LLC, its SM By:Blackstone Holdings III LP, its MM By:Blackstone Holdings III GP LP, its GP By:Blackstone Holdings III GP Management LLC, its GP By:/s/Tabea Hsi,SMD 2021-06-21 BTO EARN MANAGER L.L.C., By: BTOA L.L.C., its sole member, By: Blackstone Holdings III L.P., its managing member, By: Blackstone Holdings III GP L.P., its GP, By: Blackstone Holdings III GP Management L.L.C., its GP, By:/s/ Tabea Hsi, SMD 2021-06-21 BTOA L.L.C., By: Blackstone Holdings III L.P., its managing member, By: Blackstone Holdings III GP L.P., its GP, By: Blackstone Holdings III GP Management L.L.C., its GP, By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2021-06-21 BLACKSTONE HOLDINGS III L.P., By: Blackstone Holdings III GP L.P., its general partner, By: Blackstone Holdings III GP Management L.L.C., its general partner, By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2021-06-21 BLACKSTONE HOLDINGS III GP L.P., By: Blackstone Holdings III GP Management L.L.C., its general partner, By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2021-06-21 BLACKSTONE HOLDINGS III GP MANAGEMENT L.L.C., By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2021-06-21 THE BLACKSTONE GROUP INC., By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2021-06-21 BLACKSTONE GROUP MANAGEMENT L.L.C., By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2021-06-21 /s/ Stephen A. Schwarzman 2021-06-21