SEI Investments Company
MX ˙ BMV ˙ US7841171033
SecurityMX:SEIC / SEI Investments Company
InstitutionUSA Financial Portformulas Corp
Latest Disclosed Ownership6 shares
Latest Disclosed Value $ 471
USA Financial Portformulas Corp ownership in SEIC / SEI Investments Company

On April 14, 2026 - USA Financial Portformulas Corp filed a 13F-HR form disclosing ownership of 6 shares of SEI Investments Company (MX:SEIC) valued at $471 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 6 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)
2026-04-14 2026-03-31 13F SEI Investments COM 784117103 6 0 0.00 0 0.0001
2026-01-14 2025-12-31 13F SEI Investments COM 784117103 6 6 0 0.0001
2019-05-14 2019-03-31 13F SEI INVESTMENTS COM 784117103 0 -4,812 -100.00 0 -100.00
2019-02-14 2018-12-31 13F SEI INVESTMENTS COM 784117103 4,812 4,812 294 0.0732
2018-10-31 2018-09-30 13F SEI INVESTMENTS COM 784117103 0 -15,213 -100.00 0 -100.00
2018-08-03 2018-06-30 13F SEI INVESTMENTS COM 784117103 15,213 -85 -0.56 1,140 -0.52 0.2770
2018-04-03 2018-03-31 13F SEI INVESTMENTS COM 784117103 15,298 -616 -3.87 1,146 0.17 0.2764
2018-02-13 2017-12-31 13F SEI INVESTMENTS COM 784117103 15,914 11,083 229.41 1,144 287.80 0.2721
2017-11-02 2017-09-30 13F/A-1 SEI INVESTMENTS COM 784117103 4,831 4,831 295 0.0703
2017-10-11 2017-09-30 13F SEI INVESTMENTS COM 784117103 4,831 4,831 295
2016-05-13 2016-03-31 13F SEI INVESTMENTS COM 784117103 0 -11,164 -100.00 0 -100.00
2016-02-09 2015-12-31 13F SEI INVESTMENTS COM 784117103 11,164 -2,444 -17.96 585 -10.82 0.2365
2015-11-16 2015-09-30 13F SEI INVESTMENTS COM 784117103 13,608 -5,273 -27.93 656 -29.16 0.4252
2015-08-10 2015-06-30 13F SEI INVESTMENTS COM 784117103 18,881 18,881 926 0.2843
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.