Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in CSGS held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 4.1M | $327.3M | +0.8% | 14.362% | 0.01% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.8M | $143.3M | — | 6.287% | 0.01% |
| 3 | UBS Group AG | 1.4M | $115.1M | +1633.6% | 5.049% | 0.02% |
| 4 | FULLER & THALER ASSET MANAGEMENT, INC. | 1.4M | $113.2M | -0.1% | 4.966% | 0.38% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 1.2M | $97.1M | — | 4.259% | 0.00% |
| 6 | STATE STREET CORP | 1.1M | $85.4M | +0.3% | 3.732% | 0.00% |
| 7 | HIGHLAND CAPITAL MANAGEMENT FUND ADVISORS, L.P. | 896K | $71.6M | +113.2% | 3.143% | 4.92% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 848K | $67.8M | +2.7% | 2.976% | 0.00% |
| 9 | GOLDMAN SACHS GROUP INC | 838K | $67.0M | -28.6% | 2.941% | 0.01% |
| 10 | Magnetar Financial LLC | 807K | $64.5M | +0.4% | 2.832% | 0.66% |
| 11 | MILLENNIUM MANAGEMENT LLC | 582K | $46.5M | +96.7% | 2.041% | 0.03% |
| 12 | ALLIANCEBERNSTEIN L.P. | 597K | $45.7M | +36.7% | 2.092% | 0.01% |
| 13 | MORGAN STANLEY | 562K | $44.9M | -2.3% | 1.970% | 0.00% |
| 14 | CNH PARTNERS LLC | 542K | $43.3M | +7.6% | 1.901% | 0.71% |
| 15 | ROYAL BANK OF CANADA | 506K | $40.4M | +2.9% | 1.774% | 0.01% |
| 16 | Allianz Asset Management GmbH | 490K | $39.2M | +27.3% | 1.719% | 0.04% |
| 17 | Man Group plc | 466K | $37.2M | — | 1.634% | 0.07% |
| 18 | FIRST TRUST ADVISORS LP | 465K | $37.2M | -35.0% | 1.631% | 0.03% |
| 19 | ODDO BHF ASSET MANAGEMENT SAS | 420K | $33.6M | — | 1.473% | 1.32% |
| 20 | ALPINE ASSOCIATES MANAGEMENT INC. | 403K | $32.2M | +747.4% | 1.412% | 1.90% |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 391K | $31.3M | +1.8% | 1.371% | 0.00% |
| 22 | WELLS FARGO & COMPANY/MN | 372K | $29.7M | -4.1% | 1.305% | 0.01% |
| 23 | DEUTSCHE BANK AG\ | 355K | $28.4M | +3.0% | 1.246% | 0.01% |
| 24 | Bragg Financial Advisors, Inc | 339K | $27.1M | -17.1% | 1.190% | 0.86% |
| 25 | Invesco Ltd. | 330K | $26.4M | -1.8% | 1.159% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in CSGS — a direct measure of their conviction.
Filings activity in CSGS during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 285 | 8.1% | 100.75% | +5.62 pp | $2.32B | +5.9% |
| Q4 2025 | 310 | +9.5% | 95.13% | +20.55 pp | $2.19B | +28% |
| Q3 2025 | 283 | 2.7% | 74.58% | +1.72 pp | $1.72B | +2.4% |
| Q2 2025 | 291 | +2.8% | 72.86% | +6.02 pp | $1.68B | +9.0% |
| Q1 2025 | 283 | +7.2% | 66.84% | +6.60 pp | $1.54B | +11% |
| Q4 2024 | 264 | +3.5% | 60.24% | +0.02 pp | $1.39B | +0.0% |
| Q3 2024 | 255 | +9.0% | 60.22% | +13.46 pp | $1.39B | +29% |
| Q2 2024 | 234 | — | 46.76% | — | $1.08B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying CSGS stock.
Based on Q1 2026 13F filings, institutional ownership of CSG Systems International, Inc. stands at 100.8%, held across 285 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of CSGS, with approximately 4,094,650 shares worth $0.33B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of CSGS, including MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for CSGS is 52 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
47 institutions opened new positions in CSGS during Q1 2026, while 72 fully exited. 160 added to existing positions and 77 trimmed.
CSGS institutional ownership rose by 5.62 percentage points quarter-over-quarter, with a net change of -25 holders.
The top 10 institutions account for 49.7% of all reported 13F value in CSGS, and the top 25 account for 73.2%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
CSG Systems International, Inc. (CSGS) Institutional Ownership