SEI Investments Company
MX ˙ BMV ˙ US7841171033
SecurityMX:SEIC / SEI Investments Company
InstitutionDnB Asset Management AS
Latest Disclosed Ownership4,988 shares
Latest Disclosed Value $ 391,408
DnB Asset Management AS ownership in SEIC / SEI Investments Company

On May 14, 2026 - DnB Asset Management AS filed a 13F-HR form disclosing ownership of 4,988 shares of SEI Investments Company (MX:SEIC) valued at $391,408 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 12, 2025 disclosing 0 shares of SEI Investments Company.

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 Investments COM 784117103 4,988 4,988 391 0.0014
2025-08-12 2025-06-30 13F SEI Investments common 784117103 0 -18,920 -100.00 0 -100.00
2025-05-15 2025-03-31 13F SEI Investments common 784117103 18,920 -3,005 -13.71 1,469 -18.81 0.0068
2025-02-12 2024-12-31 13F SEI Investments COM 784117103 21,925 450 2.10 1,808 21.75 0.0078
2024-11-12 2024-09-30 13F SEI Investments COM 784117103 21,475 3,876 22.02 1,486 30.49 0.0067
2024-07-05 2024-06-30 13F SEI Investments common 784117103 17,599 0 0.00 1,138 -10.04 0.0054
2024-04-12 2024-03-31 13F SEI Investments common 784117103 17,599 -77 -0.44 1,265 12.64 0.0066
2024-01-04 2023-12-31 13F SEI Investments common 784117103 17,676 -2,230 -11.20 1,123 -6.26 0.0058
2023-10-13 2023-09-30 13F SEI Investments common 784117103 19,906 3,804 23.62 1,199 24.79 0.0072
2023-07-10 2023-06-30 13F/A-1 SEI Investments common 784117103 16,102 0 0.00 960 3.67 0.0055
2023-07-06 2023-06-30 13F SEI Investments common 784117103 16,102 0 960 0.0056
2023-04-20 2023-03-31 13F SEI Investments common 784117103 16,102 331 2.10 927 0.76 0.0059
2023-01-12 2022-12-31 13F SEI Investments common 784117103 15,771 -308 -1.92 919 16.62 0.0065
2022-10-11 2022-09-30 13F SEI Investments common 784117103 16,079 0 0.00 789 -9.22 0.0061
2022-07-08 2022-06-30 13F SEI Investments common 784117103 16,079 170 1.07 869 -9.30 0.0061
2022-04-08 2022-03-31 13F SEI Investments common 784117103 15,909 370 2.38 958 1.16 0.0057
2022-01-12 2021-12-31 13F SEI Investments common 784117103 15,539 184 1.20 947 3.96 0.0056
2021-10-15 2021-09-30 13F SEI Investments common 784117103 15,355 1,148 8.08 911 3.41 0.0059
2021-07-06 2021-06-30 13F SEI Investments common 784117103 14,207 709 5.25 880 7.06 0.0058
2021-04-15 2021-03-31 13F SEI Investments common 784117103 13,498 1,147 9.29 822 15.94 0.0060
2021-01-19 2020-12-31 13F SEI Investments common 784117103 12,351 1,845 17.56 710 33.27 0.0062
2020-10-14 2020-09-30 13F SEI Investments common 784117103 10,506 0 0.00 533 -7.80 0.0057
2020-07-08 2020-06-30 13F SEI Investments common 784117103 10,506 0 0.00 578 18.72 0.0068
2020-04-17 2020-03-31 13F SEI Investments common 784117103 10,506 -1,790 -14.56 487 -39.63 0.0072
2020-01-13 2019-12-31 13F SEI Investments common 784117103 12,296 0 0.00 805 10.58 0.0079
2019-10-16 2019-09-30 13F SEI Investments common 784117103 12,296 -2,159 -14.94 729 -10.12 0.0082
2019-07-08 2019-06-30 13F SEI Investments common 784117103 14,455 0 0.00 811 7.28 0.0093
2019-04-11 2019-03-31 13F SEI Investments common 784117103 14,455 1,113 8.34 755 22.56 0.0086
2019-01-15 2018-12-31 13F SEI Investments common 784117103 13,342 -109,700 -89.16 616 -91.81 0.0080
2018-10-10 2018-09-30 13F SEI Investments common 784117103 123,042 32,100 35.30 7,518 32.23 0.0845
2018-07-06 2018-06-30 13F SEI Investments common 784117103 90,942 -3,500 -3.71 5,686 -19.64 0.0671
2018-04-11 2018-03-31 13F SEI Investments common 784117103 94,442 42,700 82.52 7,075 90.26 0.0852
2018-01-10 2017-12-31 13F SEI Investments common 784117103 51,742 51,742 3,718 0.0448
2017-07-06 2017-06-30 13F SEI Investments common 784117103 0 -12,642 -100.00 0 -100.00
2017-04-19 2017-03-31 13F SEI Investments common 784117103 12,642 -17,256 -57.72 638 -38.63 0.0100
2014-01-27 2013-12-31 13F SEI Investments common 784117103 29,898 -24,500 -45.04 1,038 -38.25 0.0244
2013-10-17 2013-09-30 13F SEI Investments common 784117103 54,398 -14,200 -20.70 1,681 -13.79 0.0460
2013-07-31 2013-06-30 13F SEI Investments common 784117103 68,598 68,598 1,950 0.0577
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.