---
schema_version: "secwatch.filing_event.v1"
accession: "0001564590-21-059172"
form_type: "8-K"
ticker: "CSGS"
cik: "0001005757"
company_name: "CSG SYSTEMS INTERNATIONAL INC"
filed_at: "2021-12-02T23:59:59+00:00"
generated_at: "2026-06-28T04:03:05.295749+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# CSG Systems modifies conversion settlement terms for its 4.25% Convertible Senior Notes due 2036

## Summary
- On November 26, 2021, CSG entered a First Supplemental Indenture governing its $4.25% Convertible Senior Notes due 2036.
- The amendment eliminates CSG's option to choose physical settlement on any conversion after November 26, 2021.
- For combination settlements, the cash specified amount per $1,000 principal is set at no lower than $1,000.
- The First Supplemental Indenture was made with The Bank of New York Mellon Trust Company, N.A. as trustee.

## SEC filing metadata
- accession: 0001564590-21-059172
- form_type: 8-K
- ticker: CSGS
- cik: 0001005757
- company_name: CSG SYSTEMS INTERNATIONAL INC
- filed_at: 2021-12-02T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1005757/000156459021059172/0001564590-21-059172-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1005757/000156459021059172/csgs-8k_20211126.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001564590-21-059172
- JSON: https://secwatch.observer/filing/0001564590-21-059172.json
- Plain text: https://secwatch.observer/filing/0001564590-21-059172.txt

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