SEI Investments Company
MX ˙ BMV ˙ US7841171033
SecurityMX:SEIC / SEI Investments Company
InstitutionSignaturefd, Llc
Latest Disclosed Ownership6,920 shares
Latest Disclosed Value $ 543,023
Signaturefd, Llc reports 85.37% increase in ownership of SEIC / SEI Investments Company

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 6,920 shares of SEI Investments Company (MX:SEIC) valued at $543,023 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 3,733 shares of SEI Investments Company. This represents a change in shares of 85.37% 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)
2026-04-07 2026-03-31 13F SEI INVTS COM 784117103 6,920 3,187 85.37 543 77.45 0.0083
2026-01-20 2025-12-31 13F SEI INVTS COM 784117103 3,733 972 35.20 306 30.77 0.0047
2025-10-21 2025-09-30 13F SEI INVTS COM 784117103 2,761 -54 -1.92 234 -7.14 0.0037
2025-07-16 2025-06-30 13F SEI INVTS COM 784117103 2,815 55 1.99 253 17.76 0.0043
2025-05-02 2025-03-31 13F SEI INVTS COM 784117103 2,760 -58 -2.06 214 -7.76 0.0041
2025-02-10 2024-12-31 13F SEI INVTS COM 784117103 2,818 -21 -0.74 232 18.37 0.0044
2024-10-21 2024-09-30 13F SEI INVTS COM 784117103 2,839 -103 -3.50 196 3.16 0.0037
2024-07-29 2024-06-30 13F SEI INVTS COM 784117103 2,942 213 7.81 190 -3.06 0.0039
2024-05-03 2024-03-31 13F SEI INVTS COM 784117103 2,729 -73 -2.61 196 10.11 0.0041
2024-02-01 2023-12-31 13F SEI INVTS COM 784117103 2,802 -539 -16.13 178 -11.44 0.0041
2023-11-03 2023-09-30 13F SEI INVTS COM 784117103 3,341 1,029 44.51 201 46.72 0.0052
2023-08-01 2023-06-30 13F SEI INVTS COM 784117103 2,312 -258 -10.04 138 -6.80 0.0035
2023-04-28 2023-03-31 13F SEI INVTS COM 784117103 2,570 923 56.04 148 53.13 0.0040
2023-01-30 2022-12-31 13F SEI INVTS COM 784117103 1,647 -1,324 -44.56 96 -34.25 0.0028
2022-11-08 2022-09-30 13F SEI INVTS COM 784117103 2,971 -1,263 -29.83 146 -36.24 0.0050
2022-08-10 2022-06-30 13F SEI INVTS COM 784117103 4,234 2,101 98.50 229 78.91 0.0078
2022-05-02 2022-03-31 13F SEI INVTS COM 784117103 2,133 1,282 150.65 128 146.15 0.0039
2022-01-25 2021-12-31 13F SEI INVTS COM 784117103 851 218 34.44 52 36.84 0.0016
2021-10-28 2021-09-30 13F SEI INVTS COM 784117103 633 140 28.40 38 22.58 0.0013
2021-07-26 2021-06-30 13F SEI INVTS COM 784117103 493 190 62.71 31 72.22 0.0012
2021-04-30 2021-03-31 13F SEI INVTS COM 784117103 303 0 0.00 18 5.88 0.0008
2021-02-11 2020-12-31 13F SEI INVTS COM 784117103 303 -87 -22.31 17 -15.00 0.0008
2020-11-03 2020-09-30 13F SEI INVTS COM 784117103 390 87 28.71 20 17.65 0.0011
2020-07-30 2020-06-30 13F SEI INVTS COM 784117103 303 35 13.06 17 41.67 0.0010
2020-04-23 2020-03-31 13F SEI INVESTMENTS COM 784117103 268 -165 -38.11 12 -57.14 0.0010
2020-02-05 2019-12-31 13F SEI INVESTMENTS COM 784117103 433 0 0.00 28 7.69 0.0021
2019-10-16 2019-09-30 13F SEI INVESTMENTS COM 784117103 433 211 95.05 26 116.67 0.0021
2019-07-31 2019-06-30 13F SEI INVESTMENTS COM 784117103 222 18 8.82 12 9.09 0.0010
2019-05-09 2019-03-31 13F SEI INVESTMENTS COM 784117103 204 80 64.52 11 83.33 0.0009
2019-02-13 2018-12-31 13F SEI INVESTMENTS COM 784117103 124 114 1,140.00 6 500.00 0.0006
2018-11-14 2018-09-30 13F SEI INVESTMENTS COM 784117103 10 0 0.00 1 0.00 0.0001
2018-08-14 2018-06-30 13F SEI INVESTMENTS COM 784117103 10 -8 -44.44 1 0.00 0.0001
2018-05-08 2018-03-31 13F SEI INVESTMENTS COM 784117103 18 18 1 0.0001
2017-02-14 2016-12-31 13F SEI INVESTMENTS COM 784117103 0 -10 -100.00 0 0.0000
2016-11-14 2016-09-30 13F SEI INVESTMENTS COM 784117103 10 0 0.00 0 0.0000
2016-07-29 2016-06-30 13F SEI INVESTMENTS COM 784117103 10 0 0.00 0 0.0000
2016-05-12 2016-03-31 13F SEI INVESTMENTS COM 784117103 10 10 0 0.0000
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.