368 institutions reported holding $2.99B of CSG SYS INTL INC (CSGS) in SEC 13F filings for 2026-03-31. Largest institutional holders: BlackRock, Inc. ($335.4M), VANGUARD PORTFOLIO MANAGEMENT LLC ($143.3M), UBS Group AG ($115.1M), FULLER & THALER ASSET MANAGEMENT, INC. ($113.2M), VANGUARD CAPITAL MANAGEMENT LLC ($97.1M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $335.4M | 10.8M | Added |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $143.3M | 1.8M | New |
| 3 | UBS Group AG | $115.1M | 1.4M | Added |
| 4 | FULLER & THALER ASSET MANAGEMENT, INC. | $113.2M | 1.4M | Trimmed |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $97.1M | 1.2M | New |
| 6 | STATE STREET CORP | $95.9M | 9.7M | Added |
| 7 | HBK INVESTMENTS L P | $77.6M | 63.9M | Added |
| 8 | Invesco Ltd. | $74.5M | 39.9M | Trimmed |
| 9 | NEXPOINT ASSET MANAGEMENT, L.P. | $71.6M | 895,961 | Added |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $67.8M | 848,423 | Added |
| 11 | GOLDMAN SACHS GROUP INC | $67.0M | 856,419 | Trimmed |
| 12 | Magnetar Financial LLC | $64.5M | 807,431 | Added |
| 13 | WOLVERINE ASSET MANAGEMENT LLC | $63.8M | 52.4M | Hold |
| 14 | Balyasny Asset Management L.P. | $60.5M | 49.7M | New |
| 15 | TWO SIGMA INVESTMENTS, LP | $48.2M | 21.6M | Trimmed |
| 16 | MILLENNIUM MANAGEMENT LLC | $46.5M | 591,782 | Added |
| 17 | JPMORGAN CHASE & CO | $46.3M | 19.6M | Added |
| 18 | ALLIANCEBERNSTEIN L.P. | $45.7M | 596,502 | Added |
| 19 | MORGAN STANLEY | $44.9M | 561,671 | Trimmed |
| 20 | AQR Arbitrage LLC | $43.3M | 541,948 | Added |
| 21 | WELLS FARGO & COMPANY/MN | $41.4M | 10.0M | Trimmed |
| 22 | Royal Bank of Canada | $40.4M | 505,844 | Trimmed |
| 23 | Allianz Asset Management GmbH | $39.2M | 490,139 | Added |
| 24 | Man Group plc | $37.2M | 465,729 | New |
| 25 | FIRST TRUST ADVISORS LP | $37.2M | 465,034 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31