FREE WRITING PROSPECTUS
    FILED PURSUANT TO RULE 433
    REGISTRATION FILE NO.: 333-286596-03
     

From: Citi Cmbs Syndicate (CITIGROUP GLOBAL MAR) <[REDACTED]>
Sent: Monday, April 27, 2026 1:14 PM
Subject: BMARK 2026-B43 -- New Issue Announcement (Public)

BMARK 2026-B43 -- New Issue Announcement (Public)

Co-Lead Managers & Joint Bookrunners: Citigroup, Deutsche Bank Securities, Goldman Sachs & Co., BofA Securities, Barclays Capital, UBS Securities, BMO Capital Markets
   
Co-Managers: Academy Securities, Mischler Financial Group

Class Expected Ratings
(S&P/Fitch/KBRA)
Size($mm)
C/E
WAL Cum LTV U/W NOI
Debt Yld
A-1 AAA(sf)/AAAsf/AAA(sf) 44.730 30.000% 2.69 38.2% 20.7%
A-4 AAA(sf)/AAAsf/AAA(sf) 150.000* 30.000% 9.68 38.2% 20.7%
A-5 AAA(sf)/AAAsf/AAA(sf) 232.186* 30.000% 9.89 38.2% 20.7%
A-SB AAA(sf)/AAAsf/AAA(sf) 36.010 30.000% 7.35 38.2% 20.7%
A-S AA+(sf)/AAAsf/AAA(sf) 65.306 20.125% 9.99 43.6% 18.2%
B NR/AA-sf/AA(sf) 31.412 15.375% 9.99 46.2% 17.2%
C NR/A-sf/A(sf) 24.800 11.625% 9.99 48.3% 16.4%

* Class sizes and/or WALs subject to change as detailed in the term sheet. Possible ranges below:

Class Expected Range of Balance(mm) Expected Range of WAL
A-4 0 - 150.000 NAP – 9.68
A-5 232.186 – 382.186 9.89 – 9.81

Collateral Summary  
Initial Pool Balance $683,234,771
Number of Mortgage Loans 32
Number of Mortgaged Properties 53
Average Cut-off Date Balance $21,351,087
Weighted Average Mortgage Rate 6.41065%
Weighted Average Remaining Term to Maturity/ARD (months) 119
Weighted Average Remaining Amortization Term (months) 298
Weighted Average Cut-off Date LTV Ratio 54.6%
Weighted Average Maturity Date/ARD LTV Ratio 48.1%
Weighted Average UW NCF DSCR 2.00x
Weighted Average Debt Yield on Underwritten NOI 14.5%
   
Top 5 Property Type: 27.0% Retail, 22.0% Office, 14.0% Multifamily, 11.5% Industrial, 8.3% Leased Fee
   
Top 5 States: 20.2% New York, 13.6% Virginia, 9.2% California, 7.9% Ohio, 7.7% Pennsylvania
   
Risk Retention: L-shape
Master Servicer: Trimont LLC
   
Special Servicer: CWCapital Asset Management LLC
   
Operating Advisor: Park Bridge Lender Services LLC
   
Trustee: Wilmington Savings Fund Society, FSB
   
Cert. Administrator: Citibank, N.A.
   
Anticipated Timing  
Anticipated Pricing: Week of 4/27/2026
Anticipated Settlement: 5/20/2026

Term Sheet
<Attached>

Annex A-1 (Red)
<Attached>

The depositor has filed a registration statement (including a prospectus) with the Securities and Exchange Commission (“SEC”) (SEC File No. 333-286596) for the offering to which this free writing prospectus relates. Before you invest, you should read the prospectus in the registration statement and other documents the depositor has filed with the SEC for more complete information about the depositor, the issuing entity and this offering. You may get these documents for free by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, the depositor or Citigroup Global Markets Inc., Deutsche Bank Securities Inc., Goldman Sachs & Co. LLC, BofA Securities, Inc., UBS Securities LLC, BMO Capital Markets Corp., Barclays Capital Inc., Academy Securities, Inc. or Mischler Financial Group, Inc. or any other underwriter or dealer participating in this offering will arrange to send you the prospectus if you request it by calling toll-free 1-800-831-9146.

The securities related to this File are being offered when, as and if issued.  This free writing prospectus is not an offer to sell or a solicitation of an offer to buy such securities in any state or other jurisdiction where such offer, solicitation or sale is not permitted. Such securities do not represent an interest in or obligation of the depositor, the sponsors, the originators, the master servicer, the special servicer, the trustee, the certificate administrator, the operating advisor, the asset representations reviewer, the controlling class representative, any risk retention consultation parties, the companion loan holders (or their representatives), the underwriters or any of their respective affiliates.  Neither such securities nor the underlying mortgage loans are insured or guaranteed by any governmental agency or instrumentality or private insurer.

Any legends, disclaimers or other notices that may appear at the bottom of the email communication to which this free writing prospectus is attached relating to (1) these materials not constituting an offer (or a solicitation of an offer), (2) no representation being made that these materials are accurate or complete and that these materials may not be updated or (3) these materials possibly being confidential, are, in each case, not applicable to these materials and should be disregarded. Such legends, disclaimers or other notices have been automatically generated as a result of these materials having been sent via Bloomberg or another system.