BXMT CFO sells 1,352 shares under 10b5-1 plan

BLACKSTONE MORTGAGE TRUST, INC.

Rhea-AI Filing Summary

BLACKSTONE MORTGAGE TRUST, INC. Chief Financial Officer Marcin Urbaszek reported an open-market sale of 1,352 shares of Class A Common Stock at $18.35 per share. After this transaction, he directly holds 24,824 shares. The sale was made under two pre-arranged Rule 10b5-1 trading plans adopted on March 6, 2025 and February 26, 2026 to satisfy tax withholding obligations tied to the vesting of previously granted restricted stock awards.

Insider Trade Summary 10b5-1

Net Seller: 1,352 shares

Net Sell 1 txn

Insider URBASZEK MARCIN

Role Chief Financial Officer

Sold 1,352 shs ($25K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	1,352	$18.35	$25K

Holdings After Transaction: Class A Common Stock — 24,824 shares (Direct)

Footnotes (1)

1. F1. The sales reported in this Form 4 were effected pursuant to two Rule 10b5-1 trading plans adopted on March 6, 2025 and February 26, 2026 to satisfy certain tax withholding related obligations in connection with the vesting of previously granted restricted stock awards.

Key Figures

Shares sold: 1,352 shares Sale price: $18.35 per share Shares held after: 24,824 shares +2 more

5 metrics

Shares sold 1,352 shares Open-market sale of Class A Common Stock

Sale price $18.35 per share Price for the 1,352 shares sold

Shares held after 24,824 shares Direct holdings after the transaction

Net share change -1,352 shares Net-sell direction in transaction summary

10b5-1 plan dates March 6, 2025; February 26, 2026 Adoption dates of trading plans

Key Terms

Rule 10b5-1 trading plans, tax withholding related obligations, restricted stock awards, open-market sale

4 terms

Rule 10b5-1 trading plans regulatory

"The sales reported in this Form 4 were effected pursuant to two Rule 10b5-1 trading plans adopted on March 6, 2025 and February 26, 2026"

Rule 10b5-1 trading plans are written, pre-arranged instructions that allow company insiders (such as executives or directors) to automatically buy or sell their company's stock at specified times or under set conditions, like a standing instruction or automated thermostat for trades. They matter to investors because these plans provide a legal defense against insider‑trading accusations and create predictable insider trading patterns that can help signal whether sales are routine portfolio management or potentially meaningful to the company’s outlook.

tax withholding related obligations financial

"to satisfy certain tax withholding related obligations in connection with the vesting of previously granted restricted stock awards"

restricted stock awards financial

"in connection with the vesting of previously granted restricted stock awards"

Restricted stock awards are company shares given to employees or executives that cannot be sold or transferred until certain conditions — like staying with the company for a set time or meeting performance targets — are met, like a gift that is locked in a safe until rules are satisfied. Investors care because these awards tie management’s pay to company performance, can increase the number of shares outstanding when they become tradable (dilution), and may signal expected future selling pressure or commitment to long-term growth.

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

FAQ

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

What insider transaction did BXMT CFO Marcin Urbaszek report?

BXMT’s CFO, Marcin Urbaszek, reported selling 1,352 shares of Class A Common Stock. The shares were sold in an open-market transaction at $18.35 per share, as disclosed in the Form 4 filing.

At what price did the BXMT CFO sell his shares?

The BXMT CFO sold 1,352 shares at $18.35 per share. This price reflects the open-market transaction value disclosed, providing a clear reference point for the reported insider sale.

How many BXMT shares does the CFO hold after the reported sale?

After the reported sale, the BXMT CFO directly holds 24,824 shares of Class A Common Stock. This post-transaction balance is stated in the Form 4 and shows his remaining equity position.

Were the BXMT CFO’s share sales made under a Rule 10b5-1 plan?

Yes. The Form 4 notes that the sales were effected under two Rule 10b5-1 trading plans. These plans were adopted on March 6, 2025 and February 26, 2026, indicating the trades were pre-arranged.

Why did the BXMT CFO sell shares according to the Form 4?

The filing states the sales were made to satisfy tax withholding obligations. These obligations were related to the vesting of previously granted restricted stock awards, as explained in the footnote.

Does the BXMT Form 4 mention restricted stock awards?

Yes. The footnote explains the trades were connected to vesting of previously granted restricted stock awards. The sales helped cover tax withholding obligations arising from those vesting events.

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

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Accepted by SEC EDGAR 06/18/2026 - 05:28 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)
06/17/2026

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	06/17/2026		S		1,352(1)	D	$18.35	24,824	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 two Rule 10b5-1 trading plans adopted on March 6, 2025 and February 26, 2026 to satisfy certain tax withholding related obligations in connection with the vesting of previously granted restricted stock awards.

Remarks:

	/s/ Marcin Urbaszek	06/18/2026
	** 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)