BLACKSTONE MORTGAGE TRUST, INC. 10-Q

ITEM 5. OTHER INFORMATION Section 13(r) Disclosure Pursuant to Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012, which added Section 13(r) of the Exchange Act, we hereby incorporate by reference herein Exhibit 99.1 of this report, which includes disclosures regarding activities at Mundys S.p.A. (formerly “Atlantia S.p.A.”), which may be, or may have been at the time considered to be, an affiliate of Blackstone and, therefore, our affiliate. 79 ITEM 6. EXHIBITS 31.1 Certification of Chief Executive Officer, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 31.2 Certification of Chief Financial Officer, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 32.1 + Certification of Chief Executive Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 32.2 + Certification of Chief Financial Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 99.1 Section 13(r) Disclosure 101.INS XBRL Instance Document – the instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document 101.SCH Inline XBRL Taxonomy Extension Schema Document 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document 104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) ___________ + This exhibit shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liability of that Section. Such exhibit shall not be deemed incorporated into any filing under the Securities Act or the Exchange Act. The agreements and other documents filed as exhibits to this report are not intended to provide factual information or other disclosure other than with respect to the terms of the agreements or other documents themselves, and you should not rely on them for that purpose. In particular, any representations and warranties made by us in these agreements or other documents were made solely within the specific context of the relevant agreement or document and may not describe the actual state of affairs as of the date they were made or at any other time. 80 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. BLACKSTONE MORTGAGE TRUST, INC. October 25, 2023 /s/ Katharine A. Keenan Date Katharine A. Keenan Chief Executive Officer (Principal Executive Officer) October 25, 2023 /s/ Anthony F. Marone, Jr. Date Anthony F. Marone, Jr. Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer) 81