SEI Investments Company
MX ˙ BMV ˙ US7841171033
SecurityMX:SEIC / SEI Investments Company
InstitutionVerition Fund Management LLC
Latest Disclosed Ownership10,272 shares
Latest Disclosed Value $ 806,044
Verition Fund Management LLC reports 86.76% decrease in ownership of SEIC / SEI Investments Company

On May 15, 2026 - Verition Fund Management LLC filed a 13F-HR form disclosing ownership of 10,272 shares of SEI Investments Company (MX:SEIC) valued at $806,044 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 77,571 shares of SEI Investments Company. This represents a change in shares of -86.76% 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 INVTS COM 784117103 10,272 -67,299 -86.76 806 -87.33 0.0052
2026-02-13 2025-12-31 13F SEI INVTS COM 784117103 77,571 50,629 187.92 6,362 178.30 0.0250
2025-11-14 2025-09-30 13F SEI INVTS COM 784117103 26,942 -33,388 -55.34 2,286 -57.83 0.0094
2025-08-14 2025-06-30 13F SEI INVTS COM 784117103 60,330 34,091 129.92 5,421 166.26 0.0241
2025-05-15 2025-03-31 13F SEI INVTS COM 784117103 26,239 15,142 136.45 2,037 122.51 0.0095
2025-02-14 2024-12-31 13F SEI INVTS COM 784117103 11,097 -100,001 -90.01 915 -88.10 0.0036
2024-11-14 2024-09-30 13F SEI INVTS COM 784117103 111,098 107,222 2,766.31 7,687 2,974.40 0.0387
2024-08-14 2024-06-30 13F SEI INVTS COM 784117103 3,876 -132 -3.29 251 -13.19 0.0014
2024-05-14 2024-03-31 13F SEI INVTS COM 784117103 4,008 4,008 288 0.0020
2024-02-14 2023-12-31 13F SEI INVTS COM 784117103 0 -11,588 -100.00 0 -100.00
2023-11-14 2023-09-30 13F SEI INVTS COM 784117103 11,588 5,138 79.66 698 81.51 0.0081
2023-08-14 2023-06-30 13F SEI INVTS COM 784117103 6,450 6,450 385 0.0051
2023-05-15 2023-03-31 13F SEI INVTS COM 784117103 0 -8,216 -100.00 0 -100.00
2023-02-14 2022-12-31 13F SEI INVTS COM 784117103 8,216 1,105 15.54 479 36.96 0.0075
2023-01-18 2022-09-30 13F/A-1 SEI INVTS COM 784117103 7,111 -52,069 -87.98 349 -89.08 0.0039
2022-11-14 2022-09-30 13F SEI INVTS COM 784117103 7,111 -52,069 349 0.0040
2022-08-30 2022-06-30 13F/A-1 SEI INVTS COM 784117103 59,180 59,180 3,197 0.0632
2022-08-15 2022-06-30 13F SEI INVTS COM 784117103 59,180 59,180 3,197 0.0540
2022-06-02 2022-03-31 13F/A-1 SEI INVTS COM 784117103 0 -60,572 -100.00 0 -100.00
2022-05-13 2022-03-31 13F SEI INVTS COM 784117103 0 -60,572 0
2022-05-03 2021-12-31 13F/A-1 SEI INVTS COM 784117103 60,572 55,723 1,149.16 3,691 1,222.94 0.0252
2022-02-14 2021-12-31 13F SEI INVTS COM 784117103 60,572 55,723 3,691 0.0146
2021-02-16 2020-12-31 13F SEI INVTS COM 784117103 4,849 -1,314 -21.32 279 -10.86 0.0025
2020-11-16 2020-09-30 13F SEI INVTS COM 784117103 6,163 6,163 313 0.0062
2019-05-15 2019-03-31 13F SEI INVESTMENTS COM 784117103 0 -15,627 -100.00 0 -100.00
2019-02-14 2018-12-31 13F SEI INVESTMENTS COM 784117103 15,627 727 4.88 722 -20.66 0.0518
2018-11-14 2018-09-30 13F SEI INVESTMENTS COM 784117103 14,900 -5,350 -26.42 910 -28.12 0.0326
2018-08-15 2018-06-30 13F SEI INVESTMENTS COM 784117103 20,250 7,688 61.20 1,266 34.54 0.0773
2018-05-15 2018-03-31 13F SEI INVESTMENTS COM 784117103 12,562 12,562 941 0.0700
2017-11-14 2017-09-30 13F SEI INVESTMENTS COM 784117103 0 -15,462 -100.00 0 -100.00
2017-08-15 2017-06-30 13F SEI INVESTMENTS COM 784117103 15,462 6,482 72.18 832 83.66 0.0809
2017-05-12 2017-03-31 13F SEI INVESTMENTS COM 784117103 8,980 8,980 453 0.0422
2017-02-14 2016-12-31 13F SEI INVESTMENTS COM 784117103 0 -10,215 -100.00 0 -100.00
2016-11-15 2016-09-30 13F SEI INVESTMENTS COM 784117103 10,215 1,182 13.09 466 7.13 0.0500
2016-08-15 2016-06-30 13F SEI INVESTMENTS COM 784117103 9,033 -5,491 -37.81 435 -30.40 0.0555
2016-05-13 2016-03-31 13F SEI INVESTMENTS COM 784117103 14,524 14,524 0.00 625 0.1010
2016-02-17 2015-12-31 13F SEI INVESTMENTS COM 784117103 0 0 0 0.0000
2014-11-14 2014-09-30 13F SEI INVESTMENTS COM 784117103 0 -19,045 -100.00 0 -100.00
2014-08-14 2014-06-30 13F SEI INVESTMENTS COM 784117103 19,045 12,937 211.80 624 204.39 0.0667
2014-05-14 2014-03-31 13F SEI INVESTMENTS COM 784117103 6,108 6,108 -27.90 205 -14.94 0.0312
2013-11-14 2013-09-30 13F SEI INVESTMENTS COM 784117103 0 -8,471 -100.00 0 -100.00
2013-08-12 2013-06-30 13F SEI INVESTMENTS COM 784117103 8,471 8,471 241 0.0442
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.