SEI Investments Company
MX ˙ BMV ˙ US7841171033
SecurityMX:SEIC / SEI Investments Company
InstitutionFayez Sarofim & Co
Latest Disclosed Ownership6,675 shares
Latest Disclosed Value $ 523,787
Fayez Sarofim & Co ownership in SEIC / SEI Investments Company

On May 15, 2026 - Fayez Sarofim & Co filed a 13F-HR form disclosing ownership of 6,675 shares of SEI Investments Company (MX:SEIC) valued at $523,787 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,675 shares of SEI Investments Company. This represents a change in shares of 0.00% 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)
2026-05-15 2026-03-31 13F SEI INVESTMENTS Common Stock 784117103 6,675 0 0.00 524 -4.39 0.0004
2026-02-13 2025-12-31 13F SEI INVESTMENTS Common Stock 784117103 6,675 0 0.00 547 -3.36 0.0013
2025-11-14 2025-09-30 13F SEI INVTS CO COM COM 784117103 6,675 0 0.00 566 -5.51 0.0013
2025-08-14 2025-06-30 13F SEI INVTS COM 784117103 6,675 0 0.00 600 15.64 0.0014
2025-05-12 2025-03-31 13F SEI INVTS COM 784117103 6,675 0 0.00 518 -5.82 0.0013
2025-02-14 2024-12-31 13F SEI INVTS COM 784117103 6,675 0 0.00 551 19.31 0.0013
2024-11-14 2024-09-30 13F SEI INVTS COM 784117103 6,675 0 0.00 462 6.96 0.0012
2024-08-14 2024-06-30 13F SEI INVTS COM 784117103 6,675 -625 -8.56 432 -17.75 0.0012
2024-05-14 2024-03-31 13F SEI INVTS COM 784117103 7,300 0 0.00 525 7.82 0.0016
2024-02-15 2023-12-31 13F SEIINVTSCO COM 784117103 7,300 0 0.00 487 10.71 0.0015
2023-11-15 2023-09-30 13F SEI INVTS COM 784117103 7,300 0 0.00 440 0.92 0.0015
2023-08-14 2023-06-30 13F SEI INVTS COM 784117103 7,300 0 0.00 435 3.57 0.0015
2023-05-11 2023-03-31 13F SEI INVTS COM 784117103 7,300 0 0.00 420 -1.18 0.0015
2023-02-13 2022-12-31 13F SEI INVTS COM 784117103 7,300 0 0.00 426 18.72 0.0016
2022-11-15 2022-09-30 13F SEI INVTS COM 784117103 7,300 0 0.00 358 -9.14 0.0014
2022-08-12 2022-06-30 13F SEI INVTS COM 784117103 7,300 0 0.00 394 -10.45 0.0014
2022-05-16 2022-03-31 13F SEI INVTS COM 784117103 7,300 0 0.00 440 -1.12 0.0014
2022-02-11 2021-12-31 13F SEI INVTS COM 784117103 7,300 -600 -7.59 445 -4.91 0.0013
2021-11-15 2021-09-30 13F SEI INVTS COM 784117103 7,900 0 0.00 468 -4.49 0.0015
2021-08-13 2021-06-30 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 490 1.87 0.0016
2021-05-13 2021-03-31 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 481 5.95 0.0018
2021-02-11 2020-12-31 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 454 13.22 0.0017
2020-11-13 2020-09-30 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 401 -7.60 0.0017
2020-08-11 2020-06-30 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 434 18.58 0.0020
2020-05-12 2020-03-31 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 366 -29.21 0.0022
2020-02-14 2019-12-31 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 517 10.47 0.0025
2019-11-13 2019-09-30 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 468 5.64 0.0024
2019-08-09 2019-06-30 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 443 7.26 0.0023
2019-05-14 2019-03-31 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 413 13.15 0.0022
2019-02-13 2018-12-31 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 365 -24.43 0.0022
2018-11-14 2018-09-30 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 483 -2.23 0.0025
2018-08-14 2018-06-30 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 494 -16.55 0.0027
2018-05-10 2018-03-31 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 592 4.23 0.0032
2018-02-13 2017-12-31 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 568 17.84 0.0029
2017-11-08 2017-09-30 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 482 13.41 0.0025
2017-08-11 2017-06-30 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 425 6.78 0.0023
2017-05-12 2017-03-31 13F SEIInvestmentCo COMMON 784117103 7,900 0 0.00 398 2.05 0.0022
2017-02-14 2016-12-31 13F SEIInvestmentCo COMMON 784117103 7,900 -650 -7.60 390 0.00 0.0021
2016-11-21 2016-09-30 13F/A-1 SEIInvestmentCo COMMON 784117103 8,550 -200 -2.29 390 -7.36 0.0021
2016-11-14 2016-09-30 13F SEIInvestmentCo COMMON 784117103 8,550 390
2016-08-10 2016-06-30 13F SEIInvestmentCo COMMON 784117103 8,750 0 0.00 421 11.67 0.0023
2016-05-13 2016-03-31 13F SEIInvestmentCo COMMON 784117103 8,750 0 0.00 377 -17.69 0.0022
2016-02-12 2015-12-31 13F SEIInvestmentCo COMMON 784117103 8,750 -100 -1.13 458 7.26 0.0026
2015-11-12 2015-09-30 13F SEIInvestmentCo COMMON 784117103 8,850 -600 -6.35 427 -7.78 0.0025
2015-08-13 2015-06-30 13F SEIInvestmentCo COMMON 784117103 9,450 0 0.00 463 11.03 0.0024
2015-05-12 2015-03-31 13F SEIInvestmentCo COMMON 784117103 9,450 0 0.00 417 10.32 0.0020
2015-02-13 2014-12-31 13F SEIInvestmentCo COMMON 784117103 9,450 -100 -1.05 378 9.57 0.0018
2014-11-14 2014-09-30 13F SEIInvestmentCo COMMON 784117103 9,550 -850 -8.17 345 1.17 0.0016
2014-08-14 2014-06-30 13F SEIInvestmentCo COMMON 784117103 10,400 0 0.00 341 -2.57 0.0016
2014-05-14 2014-03-31 13F SEIInvestmentCo COMMON 784117103 10,400 0 0.00 350 -3.05 0.0017
2014-02-14 2013-12-31 13F SEIInvestmentCo COMMON 784117103 10,400 0 0.00 361 21.96 0.0017
2013-08-13 2013-06-30 13F SEIInvestmentCo COMMON 784117103 10,400 10,400 296 0.0015
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.