Cass Information Systems, Inc.
US ˙ NasdaqGS ˙ US14808P1093

SecurityCASS / Cass Information Systems, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership35,722 shares
Latest Disclosed Value $ 1,483,176
Sei Investments Co ownership in CASS / Cass Information Systems, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 35,722 shares of Cass Information Systems, Inc. (US:CASS) valued at $1,483,177 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 0 shares of Cass Information Systems, Inc.. The current value of the position is $1,632,853 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 CASS INFORMATION SYS COM 14808P109 35,722 35,722 1,483 0.0015
2025-11-13 2025-09-30 13F CASS INFORMATION SYS COM 14808P109 0 -5,276 -100.00 0 -100.00
2025-08-14 2025-06-30 13F CASS INFORMATION SYS COM 14808P109 5,276 0 0.00 229 0.44 0.0003
2025-05-14 2025-03-31 13F/A-1 CASS INFORMATION SYS COM 14808P109 5,276 5,276 228 0.0003
2023-11-14 2023-09-30 13F CASS INFORMATION SYS COM 14808P109 0 -8,069 -100.00 0 -100.00
2023-08-11 2023-06-30 13F CASS INFORMATION SYS COM 14808P109 8,069 900 12.55 313 0.65 0.0005
2023-05-12 2023-03-31 13F CASS INFORMATION SYS COM 14808P109 7,169 362 5.32 310 -0.32 0.0006
2023-02-10 2022-12-31 13F CASS INFORMATION SYS COM 14808P109 6,807 -3,000 -30.59 312 -8.53 0.0007
2022-11-14 2022-09-30 13F CASS INFORMATION SYS COM 14808P109 9,807 -2,700 -21.59 340 -19.62 0.0008
2022-08-15 2022-06-30 13F CASS INFORMATION SYS COM 14808P109 12,507 0 0.00 423 -8.24 0.0009
2022-05-13 2022-03-31 13F CASS INFORMATION SYS COM 14808P109 12,507 0 0.00 461 -6.30 0.0009
2022-02-14 2021-12-31 13F CASS INFORMATION SYS COM 14808P109 12,507 2,400 23.75 492 16.31 0.0009
2021-11-12 2021-09-30 13F CASS INFORMATION SYS COM 14808P109 10,107 7 0.07 423 2.67 0.0009
2021-08-06 2021-06-30 13F CASS INFORMATION SYS COM 14808P109 10,100 800 8.60 412 -4.19 0.0009
2021-05-12 2021-03-31 13F CASS INFORMATION SYS COM 14808P109 9,300 -13,646 -59.47 430 -51.85 0.0011
2021-02-08 2020-12-31 13F CASS INFORMATION SYS COM 14808P109 22,946 844 3.82 893 0.45 0.0023
2020-12-04 2020-09-30 13F/A-1 CASS INFORMATION SYS COM 14808P109 22,102 4,394 24.81 889 28.65 0.0026
2020-11-06 2020-09-30 13F CASS INFORMATION SYS COM 14808P109 22,102 4,394 889 2,140.5143
2020-08-17 2020-06-30 13F/A-1 CASS INFORMATION SYS COM 14808P109 17,708 3,242 22.41 691 35.76 0.0021
2020-08-11 2020-06-30 13F CASS INFORMATION SYS COM 14808P109 11,574 -2,892 668 1,811.9856
2020-05-14 2020-03-31 13F CASS INFORMATION SYS COM 14808P109 14,466 2,892 24.99 509 -23.80 0.0019
2020-02-06 2019-12-31 13F CASS INFORMATION SYS COM 14808P109 11,574 5,199 81.55 668 94.19 0.0020
2019-11-12 2019-09-30 13F CASS INFORMATION SYS COM 14808P109 6,375 1,675 35.64 344 50.88 0.0009
2019-08-14 2019-06-30 13F CASS INFORMATION SYS COM 14808P109 4,700 4,700 228 0.0007
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.