SEI Investments Company
MX ˙ BMV ˙ US7841171033
SecurityMX:SEIC / SEI Investments Company
InstitutionCapital Fund Management S.a.
Latest Disclosed Ownership57,174 shares
Latest Disclosed Value $ 4,486,443
Capital Fund Management S.a. reports 52.90% decrease in ownership of SEIC / SEI Investments Company

On May 14, 2026 - Capital Fund Management S.a. filed a 13F-HR form disclosing ownership of 57,174 shares of SEI Investments Company (MX:SEIC) valued at $4,486,443 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 121,390 shares of SEI Investments Company. This represents a change in shares of -52.90% 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)
2026-05-14 2026-03-31 13F SEI INVTS CO COM SEI INVTS CO COM 784117103 57,174 -64,216 -52.90 4,486 -54.94 0.0203
2026-02-17 2025-12-31 13F SEI INVTS CO COM SEI INVTS CO COM 784117103 121,390 26,105 27.40 9,956 23.16 0.0277
2025-11-13 2025-09-30 13F SEI INVTS COM 784117103 95,285 47,683 100.17 8,085 89.01 0.0212
2025-08-13 2025-06-30 13F SEI INVTS COM 784117103 47,602 30,088 171.79 4,278 214.72 0.0118
2025-05-14 2025-03-31 13F SEI INVTS COM 784117103 17,514 17,514 1,360 0.0039
2025-02-13 2024-12-31 13F SEI INVTS COM 784117103 0 -12,600 -100.00 0 -100.00
2024-11-13 2024-09-30 13F SEI INVTS COM 784117103 12,600 -20,277 -61.68 872 -59.03 0.0024
2024-08-13 2024-06-30 13F SEI INVTS COM 784117103 32,877 8,477 34.74 2,127 21.21 0.0063
2024-05-15 2024-03-31 13F SEI INVTS COM 784117103 24,400 -6,952 -22.17 1,754 -11.95 0.0051
2024-02-14 2023-12-31 13F SEI INVTS COM 784117103 31,352 0 0.00 1,992 5.51 0.0054
2023-11-14 2023-09-30 13F SEI INVTS COM 784117103 31,352 31,352 1,888 0.0065
2021-02-12 2020-12-31 13F SEI INVTS COM 784117103 0 -70,582 -100.00 0 -100.00
2020-11-13 2020-09-30 13F SEI INVTS COM 784117103 70,582 51,377 267.52 3,580 239.24 0.0442
2020-08-13 2020-06-30 13F SEI INVTS COM 784117103 19,205 19,205 1,056 0.0168
2019-08-12 2019-06-30 13F SEI Investments COM 784117103 0 -52,100 -100.00 0 -100.00
2019-05-13 2019-03-31 13F/A-1 SEI Investments COM 784117103 52,100 -40,500 -43.74 2,722 -36.37 0.0243
2019-05-13 2019-03-31 13F SEI Investments COM 784117103 92,600 0 4,278
2019-02-13 2018-12-31 13F SEI Investments COM 784117103 92,600 -119,000 -56.24 4,278 -66.91 0.0379
2018-11-14 2018-09-30 13F SEI Investments COM 784117103 211,600 48,500 29.74 12,929 26.79 0.0705
2018-08-14 2018-06-30 13F SEI Investments COM 784117103 163,100 163,100 10,197 0.0532
2017-05-03 2017-03-31 13F SEI Investments COM 784117103 0 -23,904 -100.00 0 -100.00
2017-02-08 2016-12-31 13F SEI Investments COM 784117103 23,904 -15,559 -39.43 1,180 -34.44 0.0102
2016-10-31 2016-09-30 13F SEI Investments COM 784117103 39,463 -124,460 -75.93 1,800 -77.17 0.0165
2016-07-27 2016-06-30 13F SEI Investments COM 784117103 163,923 -120,770 -42.42 7,886 -35.66 0.0739
2016-05-02 2016-03-31 13F SEI Investments COM 784117103 284,693 88,548 45.14 12,256 19.24 0.1190
2016-01-28 2015-12-31 13F SEI Investments COM 784117103 196,145 151,945 343.77 10,278 382.08 0.1057
2015-10-27 2015-09-30 13F SEI Investments COM 784117103 44,200 44,200 0.00 2,132 0.0238
2014-10-31 2014-09-30 13F SEI Investments COM 784117103 0 -55,634 -100.00 0 -100.00
2014-08-01 2014-06-30 13F SEI Investments COM 784117103 55,634 398 0.72 1,823 -1.78 0.0192
2014-05-14 2014-03-31 13F SEI Investments COM 784117103 55,236 -136,975 -71.26 1,856 -72.19 0.0227
2014-01-31 2013-12-31 13F SEI Investments COM 784117103 192,211 73,097 61.37 6,675 81.29 0.0826
2013-10-31 2013-09-30 13F SEI Investments COM 784117103 119,114 -93,594 -44.00 3,682 -39.11 0.0509
2013-07-31 2013-06-30 13F SEI Investments COM 784117103 212,708 212,708 6,047 0.0923
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.