[DEFA14A] Blackstone Secured Lending Fund Additional Proxy Soliciting Materials

Rhea-AI Filing Summary

The Form 4 filing reports that Chemours Company (CC) director Courtney Mather was awarded 2,292 deferred stock units (DSUs) on 30 June 2025. Each DSU equals one share of common stock and will be settled in the first month after the director leaves the board. The award is recorded at a reference price of $11.45 per unit. After the grant, Mather directly owns 2,292 derivative securities; no sales or additional purchases of common stock were disclosed. Apart from this routine director compensation grant, the filing contains no other material transactions or changes in ownership.

Insights

Insider Transactions Analyst

TL;DR—Routine director equity grant; neutral impact, signals standard board alignment.

This Form 4 simply records a scheduled equity award: 2,292 DSUs granted to director Courtney Mather at a reference price of $11.45. DSUs settle after board service ends, so the grant aligns the director’s incentives with long-term shareholder value but does not represent an open-market purchase. No shares were sold, and the total position now matches the grant amount. Given the modest size and routine nature, the disclosure is not materially impactful for valuation or trading decisions.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE

SECURITIES EXCHANGE ACT OF 1934

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐ Preliminary Proxy Statement

☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material under §240.14a-12

Blackstone Secured Lending Fund

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

☒ No fee required.

☐ Fee paid previously with preliminary materials.

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

You invested in BXSL and it’s time to vote!

You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy materials for the shareholder meeting to be held on September 25, 2025.

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View the Proxy Statement, Form of Proxy and our 2024 Annual Report online at www.ProxyVote.com OR you can receive a free paper or email copy of the material(s) by requesting prior to September 11, 2025. If you would like to request a copy of the material(s) for this and/or future shareholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. We encourage you to access and review the proxy materials before voting.

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This is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote on these important matters.

Voting Items				Board Recommends
1.		Elect three Class I Trustee nominees listed in the Proxy Statement.
		Nominees:
1a.		Vikrant Sawhney				For
1b.		James F. Clark				For
1c.		Vicki L. Fuller				For
2.		Ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2025.				For
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FAQ

What did Chemours (CC) director Courtney Mather receive on 30 June 2025?

He was granted 2,292 deferred stock units, each equal to one share of common stock.

When will Courtney Mather’s deferred stock units be paid out?

The DSUs become payable in the first month following his termination of service as a director.

What reference price was used for the DSU award?

The filing lists a price of $11.45 per unit.

Did the Form 4 disclose any sales of Chemours stock by the director?

No. The report shows no disposals; only the DSU grant was recorded.

How many Chemours derivative securities does Courtney Mather own after the transaction?

He directly owns 2,292 deferred stock units following the grant.

Is Courtney Mather an officer or a director of Chemours?

The filing designates him as a Director; he is not listed as an officer.