---
schema_version: "secwatch.filing_event.v1"
accession: "0001888524-26-016541"
form_type: "8-K"
ticker: null
cik: "0001880921"
company_name: "BANK 2021-BNK36"
filed_at: "2026-09-02T13:51:15+00:00"
generated_at: "2026-09-02T13:52:48.188649+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# C-IV AM acquires Greystone's special servicing division; becomes special servicer for McDonald's Global HQ loan

## Summary
- Greystone sold its special servicing division to C-IV AM effective Sept 1, 2026; C-IV AM assumes duties for McDonald's Global HQ loan.
- C-IV AM is rated MOR CS2 (Morningstar DBRS), CSS2 (Fitch), and on S&P Select Servicer list.
- As of June 30, 2026, Greystone's portfolio: ~60 transactions, $20.7B principal, 1,928 loans; 108 assets ($2.1B) in active special servicing.
- C-IV AM has resolved 6,017 assets with $60.7B principal since 2002; key employees transferred from Greystone.

## SEC filing metadata
- accession: 0001888524-26-016541
- form_type: 8-K
- cik: 0001880921
- company_name: BANK 2021-BNK36
- filed_at: 2026-09-02T13:51:15+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/1880921/000188852426016541/0001888524-26-016541-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1880921/000188852426016541/bal21b36_8k-09012026.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001888524-26-016541
- JSON: https://secwatch.observer/filing/0001888524-26-016541.json
- Plain text: https://secwatch.observer/filing/0001888524-26-016541.txt

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