secwatch.observer — SEC 8-K summary
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Issuer:     BBCMS Mortgage Trust 2023-C21 (—)
CIK:        0001985684
Form:       8-K
Filed at:   2026-09-02T14:26:13+00:00
Accession:  0001888524-26-016559
Event type: other_material
Sentiment:  neutral
Materiality: 0.40
Item codes: 6.02
LLM model:  deepseek-v4-flash:cloud@v2

Greystone special servicing division sold to C-IV AM; assumes servicer role for BBCMS 2023-C21
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- Greystone sold its special servicing division to C-IV Asset Management LLC effective Sept 1, 2026; C-IV AM assumed all special servicer duties for the 11 West 42nd Street Mortgage Loan.
- C-IV AM is a wholly-owned subsidiary of C-IV Capital Partners LLC; key Greystone special servicing employees transferred to C-IV AM.
- As of June 30, 2026, transferred portfolio: ~60 transactions, ~1,928 first-lien loans, ~$20.7B aggregate principal; ~$2.1B in active special servicing.
- C-IV AM holds ratings MOR CS2 (Morningstar DBRS) and CSS2 (Fitch); on S&P Select Servicer list ranked 'Average; Ranking Watch Positive'.
- C-IV AM has no servicer event of default or termination event; no material legal proceedings pending.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1985684/000188852426016559/0001888524-26-016559-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1985684/000188852426016559/bcr23c21_8k-09012026.htm
  HTML page:      https://secwatch.observer/filing/0001888524-26-016559

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