Blackstone Mortgage CFO sells 452 common shares

BLACKSTONE MORTGAGE TRUST, INC.

Rhea-AI Filing Summary

BLACKSTONE MORTGAGE TRUST, INC. Chief Financial Officer Marcin Urbaszek sold 452 shares of Class A common stock at an average price of $19.13 per share on March 17, 2026. The sale was made in the open market under a pre-arranged Rule 10b5-1 trading plan adopted on March 6, 2025 to satisfy tax withholding obligations tied to the vesting of previously granted restricted stock awards. Following this transaction, Urbaszek directly holds 26,176 shares of the company’s common stock.

Insider Trade Summary 10b5-1

Net Seller: 452 shares

Net Sell 1 txn

Insider URBASZEK MARCIN

Role Chief Financial Officer

Sold 452 shs ($9K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	452	$19.13	$9K

Holdings After Transaction: Class A Common Stock — 26,176 shares (Direct)

Footnotes (1)

1. F1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on March 6, 2025 to satisfy certain tax withholding related obligations in connection with the vesting of previously granted restricted stock awards.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did BXMT report for CFO Marcin Urbaszek?

BXMT reported that CFO Marcin Urbaszek sold 452 shares of Class A common stock. The shares were sold at an average price of $19.13 per share in an open-market transaction on March 17, 2026.

Why did the BXMT CFO sell 452 shares of stock?

The BXMT CFO’s sale was made to cover tax withholding obligations from vesting restricted stock awards. A footnote explains the transaction occurred under a Rule 10b5-1 trading plan specifically adopted to address these tax-related obligations.

Was the BXMT CFO’s stock sale made under a Rule 10b5-1 plan?

Yes, the BXMT CFO’s sale was executed pursuant to a Rule 10b5-1 trading plan. The plan was adopted on March 6, 2025, indicating the transaction timing was pre-arranged rather than decided at short notice.

How many BXMT shares does the CFO hold after this transaction?

After selling 452 shares, the BXMT Chief Financial Officer directly holds 26,176 shares of Class A common stock. This remaining position, reported in the Form 4, shows he continues to retain a substantial equity stake in the company.

What price did the BXMT CFO receive for the shares sold?

The BXMT CFO’s 452 shares were sold at an average price of $19.13 per share. This price reflects the open-market transaction value disclosed in the Form 4, which summarizes the sale’s key terms for investors.

Does the Form 4 indicate any derivative or option exercises for BXMT?

No derivative or option exercises are listed in this Form 4. The filing shows only a single non-derivative transaction in Class A common stock, with no remaining derivative positions reported in the derivative summary section.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/18/2026 - 06:31 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

URBASZEK MARCIN

(Last) (First) (Middle)

C/O BLACKSTONE MORTGAGE TRUST

345 PARK AVENUE

(Street)

NEW YORK NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BLACKSTONE MORTGAGE TRUST, INC. [ BXMT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	03/17/2026		S		452(1)	D	$19.13	26,176	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on March 6, 2025 to satisfy certain tax withholding related obligations in connection with the vesting of previously granted restricted stock awards.

Remarks:

	/s/ Marcin Urbaszek	03/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)