---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-047516"
form_type: "8-K"
ticker: "CSGS"
cik: "0001005757"
company_name: "CSG SYSTEMS INTERNATIONAL INC"
filed_at: "2023-09-11T23:59:59+00:00"
generated_at: "2026-06-10T21:35:13.585230+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# CSG Systems issues $425M convertible notes due 2028; enters capped call hedges

## Summary
- Issued $425M in 3.875% Convertible Senior Notes due Sept 2028; conversion price ~$71.05 per share.
- Capped Call Transactions costing $34.3M cover ~5.98M shares to reduce potential dilution upon conversion.
- Notes sold privately to QIBs under Rule 144A; shares issuable upon conversion not registered.
- CSG may redeem notes after Sept 2026 if stock price >=130% of conversion price for 20 trading days.

## SEC filing metadata
- accession: 0000950170-23-047516
- form_type: 8-K
- ticker: CSGS
- cik: 0001005757
- company_name: CSG SYSTEMS INTERNATIONAL INC
- filed_at: 2023-09-11T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1005757/000095017023047516/0000950170-23-047516-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1005757/000095017023047516/csgs-20230906.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-047516
- JSON: https://secwatch.observer/filing/0000950170-23-047516.json
- Plain text: https://secwatch.observer/filing/0000950170-23-047516.txt

## Key facts
- Debt Financings
  CSG SYSTEMS INTERNATIONAL INC incurred convertible notes of $425.0 million aggregate principal amount with U.S. Bank Trust Company, National Association at 3.875% per year maturing September 15, 2028.
  - Instrument: convertible notes
  - Principal: $425.0 million aggregate principal amount
  - Counterparty: U.S. Bank Trust Company, National Association
  - Rate: 3.875% per year
  - Maturity: September 15, 2028
  - Event: incurrence
  source text: On September 11, 2023, CSG Systems International, Inc. (“CSG” or the “Company”) issued and sold $425.0 million aggregate principal amount of its 3.875% Convertible Senior Notes due 2028 (the “Notes”), which amount included $50.0 million aggregate principal amount of Notes sold pursuant to the initial purchasers’ (the “Initial Purchasers”) full exercise of their option to purchase additional Notes.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1005757/000095017023047516/0000950170-23-047516-index.htm
- Material Agreements
  CSG SYSTEMS INTERNATIONAL INC entered into Indenture with U.S. Bank Trust Company, National Association valued at $425.0 million aggregate principal amount (effective 2023-09-11).
  - Action: entry
  - Agreement: notes offering
  - Counterparty: U.S. Bank Trust Company, National Association
  - Value: $425.0 million aggregate principal amount
  - Effective: 2023-09-11
  source text: On September 11, 2023, CSG Systems International, Inc. (“CSG” or the “Company”) issued and sold $425.0 million aggregate principal amount of its 3.875% Convertible Senior Notes due 2028 (the “Notes”), which amount included $50.0 million aggregate principal amount of Notes sold pursuant to the initial purchasers’ (the “Initial Purchasers”) full exercise of their option to purchase additional Notes. The Notes were issued pursuant to an indenture (the “Indenture”), dated as of September 11, 2023, between the Company and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1005757/000095017023047516/0000950170-23-047516-index.htm

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