Quick Takeaways
- VANGUARD PORTFOLIO MANAGEMENT LLC filed SCHEDULE 13G for CSG Systems International Inc Common Stock (CSGS).
- Disclosed ownership: 6.4%.
- Date of event: 31 Mar 2026.
Quoteable Key Fact
"VANGUARD PORTFOLIO MANAGEMENT LLC disclosed 6.4% ownership in CSG Systems International Inc Common Stock (CSGS) on 31 Mar 2026."
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Vanguard Portfolio Management | 6.4% | 1,815,213 | 22,728 | 0 | Ashley Grim | Head of Global Fund Administration |