Lynne B. Sagalyn - Oct 15, 2025 Form 4 Insider Report for BLACKSTONE MORTGAGE TRUST, INC. (BXMT)

Role: Director
Signature: /s/ Anthony F. Marone, Jr., Attorney-In-Fact
Stock symbol: BXMT
Transactions as of: Oct 15, 2025
Transactions value $: $62,767
Form type: 4
Date filed: 10/17/2025, 04:40 PM
Previous filing: Jul 16, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
SAGALYN LYNNE B	Director	C/O BLACKSTONE MORTGAGE TRUST, 345 PARK AVENUE, NEW YORK	/s/ Anthony F. Marone, Jr., Attorney-In-Fact	2025-10-17	0001195695

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BXMT	Class A Common Stock	Award	$62.8K	+3.39K	+2.16%	$18.51	160K	Oct 15, 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents Class A Common Stock Units in lieu of dividends payable on Class A Common Stock Units owned by the Reporting Person, which convert to shares of Class A Common Stock on a one-for-one basis. The number of Class A Common Stock Units was calculated by dividing (1) the product of the number of Class A Common Stock Units owned by the Reporting Person and the $0.47 per share dollar amount of the Class A Common Stock dividend paid by the Company on October 15, 2025 by (2) the closing price of the Company's Class A Common Stock on October 15, 2025.

Content

Represents Class A Common Stock Units in lieu of dividends payable on Class A Common Stock Units owned by the Reporting Person, which convert to shares of Class A Common Stock on a one-for-one basis. The number of Class A Common Stock Units was calculated by dividing (1) the product of the number of Class A Common Stock Units owned by the Reporting Person and the $0.47 per share dollar amount of the Class A Common Stock dividend paid by the Company on October 15, 2025 by (2) the closing price of the Company's Class A Common Stock on October 15, 2025.