---
schema_version: "secwatch.filing_event.v1"
accession: "0001888524-26-016529"
form_type: "8-K"
ticker: null
cik: "0001863688"
company_name: "BANK 2021-BNK34"
filed_at: "2026-09-02T13:27:27+00:00"
generated_at: "2026-09-02T13:28:23.701543+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# C-IV Asset Management replaces Greystone as special servicer for BANK 2021-BNK34

## Summary
- Effective Sept 1, 2026, Greystone sold its special servicing division to C-IV AM; C-IV AM assumes duties for U.S. Steel Tower Mortgage Loan.
- C-IV AM rated MOR CS2 by Morningstar DBRS and CSS2 by Fitch; on S&P Select Servicer list with 'Average; Ranking Watch Positive'.
- As of 6/30/2026, Greystone's named special servicer portfolio: 60 transactions, ~1,928 loans, $20.7B UPB; 33 CMBS pools with $14.2B.
- Active special servicing: ~108 assets, $2.1B UPB as of 6/30/2026; C-IV AM resolved 6,017 assets totaling $60.7B since 2002.
- All key Greystone special servicing employees transferred to C-IV AM; no servicer event of default or termination.

## SEC filing metadata
- accession: 0001888524-26-016529
- form_type: 8-K
- cik: 0001863688
- company_name: BANK 2021-BNK34
- filed_at: 2026-09-02T13:27:27+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 6.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1863688/000188852426016529/0001888524-26-016529-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1863688/000188852426016529/wcm21b34_8k-09012026.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001888524-26-016529
- JSON: https://secwatch.observer/filing/0001888524-26-016529.json
- Plain text: https://secwatch.observer/filing/0001888524-26-016529.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.