SEI Investments Company
MX ˙ BMV ˙ US7841171033
SecurityMX:SEIC / SEI Investments Company
InstitutionPrivate Trust Co Na
Latest Disclosed Ownership697 shares
Latest Disclosed Value $ 54,694
Private Trust Co Na reports 11.10% decrease in ownership of SEIC / SEI Investments Company

On April 30, 2026 - Private Trust Co Na filed a 13F-HR form disclosing ownership of 697 shares of SEI Investments Company (MX:SEIC) valued at $54,694 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 784 shares of SEI Investments Company. This represents a change in shares of -11.10% during the quarter.

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)
2026-04-30 2026-03-31 13F SEI Investments Com 784117103 697 -87 -11.10 55 -15.62 0.0049
2026-01-26 2025-12-31 13F SEI Investments Com 784117103 784 95 13.79 64 10.34 0.0056
2025-10-15 2025-09-30 13F SEI Investments Com 784117103 689 -184 -21.08 58 -25.64 0.0052
2025-07-29 2025-06-30 13F SEI Investments Com 784117103 873 -6 -0.68 78 14.71 0.0075
2025-04-28 2025-03-31 13F SEI Investments Com 784117103 879 -17 -1.90 68 -6.85 0.0070
2025-02-05 2024-12-31 13F SEI Investments Com 784117103 896 -6 -0.67 74 17.74 0.0076
2024-11-13 2024-09-30 13F SEI Investments Com 784117103 902 -234 -20.60 62 -15.07 0.0063
2024-07-23 2024-06-30 13F SEI Investments Com 784117103 1,136 156 15.92 73 4.29 0.0079
2024-04-24 2024-03-31 13F SEI Investments Com 784117103 980 282 40.40 70 59.09 0.0076
2024-01-24 2023-12-31 13F SEI Investments Com 784117103 698 0 0.00 44 4.76 0.0052
2023-10-18 2023-09-30 13F SEI Investments Com 784117103 698 0 0.00 42 2.44 0.0055
2023-07-28 2023-06-30 13F SEI Investments Com 784117103 698 -16 -2.24 42 0.00 0.0052
2023-04-12 2023-03-31 13F SEI Investments Com 784117103 714 0 0.00 41 0.0056
2023-01-18 2022-12-31 13F SEI Investments Com 784117103 714 -8 -1.11 0 -100.00 0.0062
2022-10-17 2022-09-30 13F SEI Investments Com 784117103 722 0 0.00 35 -10.26 0.0057
2022-09-16 2022-06-30 13F/A-1 SEI Investments Com 784117103 722 722 39 0.0061
2020-07-07 2020-06-30 13F SEI Investments Equities 784117103 0 -10,457 -100.00 0 -100.00
2020-04-07 2020-03-31 13F SEI Investments Equities 784117103 10,457 -122 -1.15 484 -30.06 0.1252
2020-01-02 2019-12-31 13F SEI Investments Equities 784117103 10,579 -485 -4.38 692 5.65 0.1284
2019-10-01 2019-09-30 13F SEI Investments Equities 784117103 11,064 -12 -0.11 655 5.48 0.1291
2019-07-02 2019-06-30 13F SEI Investments Equities 784117103 11,076 132 1.21 621 8.76 0.1252
2019-04-02 2019-03-31 13F SEI Investments Equities 784117103 10,944 2,166 24.68 571 40.99 0.1188
2019-01-03 2018-12-31 13F SEI Investments Equities 784117103 8,778 -95 -1.07 405 -25.28 0.0962
2018-10-09 2018-09-30 13F SEI Investments Equities 784117103 8,873 -24 -0.27 542 -2.52 0.1106
2018-07-03 2018-06-30 13F SEI Investments Equities 784117103 8,897 0 0.00 556 -16.52 0.1205
2018-04-03 2018-03-31 13F SEI Investments Equities 784117103 8,897 554 6.64 666 11.19 0.1456
2018-01-16 2017-12-31 13F SEI Investments Equities 784117103 8,343 0 0.00 599 17.68 0.1268
2017-10-12 2017-09-30 13F SEI Investments Equities 784117103 8,343 8,343 509 0.1108
2015-01-28 2014-12-31 13F SEI Investments Com 784117103 0 -368 -100.00 0 -100.00
2014-10-09 2014-09-30 13F SEI Investments Com 784117103 368 0 0.00 13 8.33 0.0044
2014-07-22 2014-06-30 13F SEI Investments Com 784117103 368 0 0.00 12 0.00 0.0039
2014-04-07 2014-03-31 13F SEI Investments Com 784117103 368 0 0.00 12 -7.69 0.0045
2014-01-08 2013-12-31 13F SEI Investments Com 784117103 368 -47 -11.33 13 0.00 0.0052
2013-10-07 2013-09-30 13F SEI Investments Com 784117103 415 47 12.77 13 30.00 0.0059
2013-08-01 2013-06-30 13F SEI Investments Com 784117103 368 0 0.00 10 0.00 0.0046
2013-07-26 2013-03-31 13F SEI Investments Com 784117103 368 368 10 0.0046
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.