SEI Investments Company
MX ˙ BMV ˙ US7841171033
SecurityMX:SEIC / SEI Investments Company
InstitutionPrana Capital Management, LP
Latest Disclosed Ownership464,241 shares
Latest Disclosed Value $ 36,428,991
Prana Capital Management, LP reports 28.71% decrease in ownership of SEIC / SEI Investments Company

On May 15, 2026 - Prana Capital Management, LP filed a 13F-HR form disclosing ownership of 464,241 shares of SEI Investments Company (MX:SEIC) valued at $36,428,991 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 651,166 shares of SEI Investments Company. This represents a change in shares of -28.71% 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 464,241 -186,925 -28.71 36,429 -31.79 1.1079
2026-02-17 2025-12-31 13F SEI INVTS COM 784117103 651,166 -60,145 -8.46 53,409 -11.51 1.9366
2025-11-14 2025-09-30 13F SEI INVTS COM 784117103 711,311 269,023 60.83 60,355 51.86 2.0114
2025-08-14 2025-06-30 13F SEI INVTS COM 784117103 442,288 58,327 15.19 39,744 33.34 1.4175
2025-05-15 2025-03-31 13F SEI INVTS COM 784117103 383,961 84,948 28.41 29,807 20.86 1.2075
2025-02-14 2024-12-31 13F SEI INVTS COM 784117103 299,013 102,197 51.93 24,663 81.11 1.1701
2024-11-14 2024-09-30 13F SEI INVTS COM 784117103 196,816 19,289 10.87 13,618 18.57 0.6235
2024-08-14 2024-06-30 13F SEI INVTS COM 784117103 177,527 10,036 5.99 11,484 -4.63 0.5462
2024-05-15 2024-03-31 13F SEI INVTS COM 784117103 167,491 64,579 62.75 12,043 84.13 0.5399
2024-02-14 2023-12-31 13F SEI INVTS COM 784117103 102,912 39,809 63.09 6,540 72.11 0.3850
2023-11-14 2023-09-30 13F SEI INVTS COM 784117103 63,103 63,103 3,801 0.2427
2022-08-15 2022-06-30 13F SEI INVTS COM 784117103 0 -23,000 -100.00 0 -100.00
2022-05-16 2022-03-31 13F SEI INVTS COM 784117103 23,000 23,000 1,385 0.1102
2022-02-14 2021-12-31 13F SEI INVTS COM 784117103 0 -157,717 -100.00 0 -100.00
2021-11-15 2021-09-30 13F SEI INVTS COM 784117103 157,717 -176,301 -52.78 9,353 -54.81 0.8236
2021-08-16 2021-06-30 13F SEI INVTS COM 784117103 334,018 71,139 27.06 20,699 29.23 1.4114
2021-05-17 2021-03-31 13F SEI INVTS COM 784117103 262,879 225,297 599.48 16,017 641.53 1.3102
2021-02-16 2020-12-31 13F SEI INVTS COM 784117103 37,582 37,582 2,160 0.2819
2020-11-16 2020-09-30 13F SEI INVTS COM 784117103 0 -81,440 -100.00 0 -100.00
2020-08-14 2020-06-30 13F SEI INVTS COM 784117103 81,440 -101,937 -55.59 4,478 -47.31 0.6097
2020-05-15 2020-03-31 13F SEI INVESTMENTS COM 784117103 183,377 61,602 50.59 8,498 6.57 2.4749
2020-02-14 2019-12-31 13F SEI INVESTMENTS COM 784117103 121,775 121,775 7,974 1.1677
2019-08-14 2019-06-30 13F SEI INVESTMENTS COM 784117103 0 -76,225 -100.00 0 -100.00
2019-05-15 2019-03-31 13F SEI INVESTMENTS COM 784117103 76,225 76,225 3,983 0.6133
2019-02-14 2018-12-31 13F SEI INVESTMENTS COM 784117103 0 -166,800 -100.00 0 -100.00
2018-11-14 2018-09-30 13F SEI INVESTMENTS COM 784117103 166,800 -165,387 -49.79 10,191 -50.93 2.2074
2018-08-14 2018-06-30 13F SEI INVESTMENTS COM 784117103 332,187 332,187 20,768 5.5430
2018-05-15 2018-03-31 13F SEI INVESTMENTS COM 784117103 0 -22,705 -100.00 0 -100.00
2018-02-14 2017-12-31 13F SEI INVESTMENTS COM 784117103 22,705 22,705 1,632 0.5564
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.