SEI投資公司
US ˙ NasdaqGS ˙ US7841171033

SecuritySEIC / SEI Investments Company
InstitutionCommerce Bank
Latest Disclosed Ownership11,140 shares
Latest Disclosed Value $ 874,156
Commerce Bank reports 10.74% increase in ownership of SEIC / SEI Investments Company

On May 11, 2026 - Commerce Bank filed a 13F-HR form disclosing ownership of 11,140 shares of SEI Investments Company (US:SEIC) valued at $874,156 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 10,060 shares of SEI Investments Company. This represents a change in shares of 10.74% during the quarter. The current value of the position is $986,781 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)
2026-05-11 2026-03-31 13F SEI INVTS COM 784117103 11,140 1,080 10.74 874 5.94 0.0018
2026-02-13 2025-12-31 13F SEI INVTS COM 784117103 10,060 133 1.34 825 -2.02 0.0046
2025-11-12 2025-09-30 13F SEI INVTS COM 784117103 9,927 -344 -3.35 842 -8.68 0.0047
2025-08-07 2025-06-30 13F SEI INVTS COM 784117103 10,271 19 0.19 923 15.97 0.0054
2025-05-08 2025-03-31 13F SEI INVTS COM 784117103 10,252 96 0.95 796 -5.02 0.0051
2025-02-13 2024-12-31 13F SEI INVTS COM 784117103 10,156 -33 -0.32 838 18.89 0.0052
2024-11-08 2024-09-30 13F SEI INVTS COM 784117103 10,189 0 0.00 705 6.83 0.0043
2024-08-12 2024-06-30 13F SEI INVTS COM 784117103 10,189 -459 -4.31 659 -13.86 0.0043
2024-05-03 2024-03-31 13F SEI INVTS COM 784117103 10,648 50 0.47 766 13.67 0.0051
2024-02-09 2023-12-31 13F SEI INVTS COM 784117103 10,598 -83 -0.78 674 4.67 0.0048
2023-11-14 2023-09-30 13F SEI INVTS COM 784117103 10,681 0 0.00 643 1.10 0.0051
2023-08-08 2023-06-30 13F SEI INVTS COM 784117103 10,681 -167 -1.54 637 1.92 0.0048
2023-05-04 2023-03-31 13F SEI INVTS COM 784117103 10,848 0 0.00 624 -1.27 0.0049
2023-02-10 2022-12-31 13F SEI INVTS COM 784117103 10,848 132 1.23 632 20.15 0.0051
2022-11-04 2022-09-30 13F SEI INVTS COM 784117103 10,716 -46 -0.43 526 -9.47 0.0046
2022-08-12 2022-06-30 13F SEI INVTS COM 784117103 10,762 98 0.92 581 -9.50 0.0047
2022-05-09 2022-03-31 13F SEI INVTS COM 784117103 10,664 -722 -6.34 642 -7.49 0.0044
2022-02-14 2021-12-31 13F SEI INVTS COM 784117103 11,386 240 2.15 694 4.99 0.0045
2021-11-09 2021-09-30 13F SEI INVTS COM 784117103 11,146 1,105 11.00 661 6.27 0.0047
2021-08-09 2021-06-30 13F SEI INVTS COM 784117103 10,041 52 0.52 622 2.13 0.0044
2021-05-05 2021-03-31 13F SEI INVTS COM 784117103 9,989 414 4.32 609 10.73 0.0046
2021-02-09 2020-12-31 13F SEI INVTS COM 784117103 9,575 3,361 54.09 550 74.60 0.0044
2020-11-06 2020-09-30 13F SEI INVTS COM 784117103 6,214 -11,851 -65.60 315 -68.28 0.0028
2020-08-07 2020-06-30 13F SEI INVTS COM 784117103 18,065 10,971 154.65 993 201.82 0.0097
2020-05-08 2020-03-31 13F SEI INVESTMENTS COM 784117103 7,094 1,851 35.30 329 -4.08 0.0040
2020-02-14 2019-12-31 13F SEI INVESTMENTS COM 784117103 5,243 1,197 29.58 343 42.92 0.0033
2019-11-12 2019-09-30 13F SEI INVESTMENTS COM 784117103 4,046 350 9.47 240 15.94 0.0025
2019-08-07 2019-06-30 13F SEI INVESTMENTS COM 784117103 3,696 3,696 207 0.0023
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.