CSG Systems International, Inc.
US ˙ NasdaqGM ˙ US1263491094
DIESES SYMBOL IST NICHT MEHR AKTIV

SecurityCSGS / CSG Systems International, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership65,359 shares
Latest Disclosed Value $ 5,012,260
Sei Investments Co reports 31.81% decrease in ownership of CSGS / CSG Systems International, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 65,359 shares of CSG Systems International, Inc. (US:CSGS) valued at $5,012,382 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 95,850 shares of CSG Systems International, Inc.. This represents a change in shares of -31.81% during the quarter. The current value of the position is $5,273,818 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F CSG SYS INTL COM 126349109 65,359 -30,491 -31.81 5,012 -18.77 0.0049
2025-11-13 2025-09-30 13F CSG SYS INTL COM 126349109 95,850 -19,800 -17.12 6,171 -18.30 0.0066
2025-08-14 2025-06-30 13F CSG SYS INTL COM 126349109 115,650 -3,542 -2.97 7,553 4.79 0.0088
2025-05-14 2025-03-31 13F/A-1 CSG SYS INTL COM 126349109 119,192 13,138 12.39 7,208 32.97 0.0093
2025-05-13 2025-03-31 13F CSG SYS INTL COM 126349109 106,664 610 5,508 0.0060
2025-02-11 2024-12-31 13F CSG SYS INTL COM 126349109 106,054 35,827 51.02 5,420 58.67 0.0070
2024-11-12 2024-09-30 13F CSG SYS INTL COM 126349109 70,227 7,820 12.53 3,417 32.97 0.0044
2024-08-13 2024-06-30 13F CSG SYS INTL COM 126349109 62,407 31,807 103.94 2,569 62.90 0.0036
2024-05-07 2024-03-31 13F CSG SYS INTL COM 126349109 30,600 10,866 55.06 1,577 50.19 0.0023
2024-02-14 2023-12-31 13F CSG SYS INTL COM 126349109 19,734 2,571 14.98 1,050 19.73 0.0017
2023-11-14 2023-09-30 13F CSG SYS INTL COM 126349109 17,163 8,300 93.65 877 87.79 0.0016
2023-08-11 2023-06-30 13F CSG SYS INTL COM 126349109 8,863 -23,953 -72.99 467 -73.50 0.0008
2023-05-12 2023-03-31 13F CSG SYS INTL COM 126349109 32,816 4,231 14.80 1,762 7.77 0.0033
2023-02-10 2022-12-31 13F CSG SYS INTL COM 126349109 28,585 -4,159 -12.70 1,635 -5.55 0.0036
2022-11-14 2022-09-30 13F CSG SYS INTL COM 126349109 32,744 -8,009 -19.65 1,731 -28.59 0.0039
2022-08-15 2022-06-30 13F CSG SYS INTL COM 126349109 40,753 -7,312 -15.21 2,424 -20.65 0.0052
2022-05-13 2022-03-31 13F CSG SYS INTL COM 126349109 48,065 10,844 29.13 3,055 42.09 0.0061
2022-02-14 2021-12-31 13F CSG SYS INTL COM 126349109 37,221 32,385 669.67 2,150 918.96 0.0040
2021-11-12 2021-09-30 13F CSG SYS INTL COM 126349109 4,836 95 2.00 211 3.94 0.0004
2021-08-06 2021-06-30 13F CSG SYS INTL COM 126349109 4,741 -559 -10.55 203 -10.57 0.0005
2021-05-12 2021-03-31 13F CSG SYS INTL COM 126349109 5,300 -1,753 -24.85 227 -26.06 0.0006
2021-02-08 2020-12-31 13F CSG SYS INTL COM 126349109 7,053 -33,895 -82.78 307 -81.81 0.0008
2020-12-04 2020-09-30 13F/A-1 CSG SYS INTL COM 126349109 40,948 -3,699 -8.28 1,688 -10.26 0.0049
2020-11-06 2020-09-30 13F CSG SYS INTL COM 126349109 41,004 -3,643 1,690 4,069.1442
2020-08-17 2020-06-30 13F/A-1 CSG SYS INTL COM 126349109 44,647 904 2.07 1,881 0.97 0.0058
2020-08-11 2020-06-30 13F CSG SYS INTL COM 126349109 45,877 2,134 2,254 6,114.0950
2020-05-14 2020-03-31 13F CSG SYS INTL COM 126349109 43,743 -5,515 -11.20 1,863 -27.90 0.0068
2020-02-06 2019-12-31 13F CSG SYS INTL COM 126349109 49,258 -3,294 -6.27 2,584 -6.04 0.0077
2019-11-12 2019-09-30 13F CSG SYS INTL COM 126349109 52,552 21,070 66.93 2,750 74.83 0.0070
2019-08-14 2019-06-30 13F CSG SYS INTL COM 126349109 31,482 12,468 65.57 1,573 87.93 0.0051
2019-05-15 2019-03-31 13F CSG SYS INTL COM 126349109 19,014 8,461 80.18 837 126.22 0.0028
2019-02-13 2018-12-31 13F CSG SYS INTL COM 126349109 10,553 1,272 13.71 370 -3.14 0.0013
2018-11-08 2018-09-30 13F CSG SYS INTL COM 126349109 9,281 -782 -7.77 382 -7.06 0.0014
2018-08-03 2018-06-30 13F CSG SYS INTL COM 126349109 10,063 3,127 45.08 411 30.89 0.0014
2018-05-11 2018-03-31 13F CSG SYS INTL COM 126349109 6,936 2,288 49.23 314 53.92 0.0012
2018-02-08 2017-12-31 13F CSG SYS INTL COM 126349109 4,648 3,817 459.33 204 518.18 0.0007
2017-11-06 2017-09-30 13F CSG SYS INTL COM 126349109 831 -9 -1.07 33 -2.94 0.0001
2017-07-31 2017-06-30 13F CSG SYS INTL COM 126349109 840 -200 -19.23 34 -15.00 0.0001
2017-05-05 2017-03-31 13F CSG SYS INTL COM 126349109 1,040 -184 -15.03 40 -32.20 0.0002
2017-02-02 2016-12-31 13F CSG SYS INTL COM 126349109 1,224 -4,884 -79.96 59 -76.59 0.0003
2016-11-04 2016-09-30 13F CSG SYS INTL COM 126349109 6,108 456 8.07 252 11.01 0.0013
2016-08-11 2016-06-30 13F CSG SYS INTL COM 126349109 5,652 561 11.02 227 -1.30 0.0014
2016-05-10 2016-03-31 13F/A-1 CSG SYS INTL COM 126349109 5,091 615 13.74 230 42.86 0.0014
2016-02-03 2015-12-31 13F CSG SYS INTL COM 126349109 4,476 4,476 161 0.0010
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.