SEI投資公司
US ˙ NasdaqGS ˙ US7841171033

SecuritySEIC / SEI Investments Company
InstitutionPrudential Financial Inc
Latest Disclosed Ownership11,884 shares
Latest Disclosed Value $ 932,537
Prudential Financial Inc reports 58.60% increase in ownership of SEIC / SEI Investments Company

On May 13, 2026 - Prudential Financial Inc filed a 13F-HR form disclosing ownership of 11,884 shares of SEI Investments Company (US:SEIC) valued at $932,537 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 7,493 shares of SEI Investments Company. This represents a change in shares of 58.60% during the quarter. The current value of the position is $1,052,685 USD.

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)
2026-05-13 2026-03-31 13F SEI INVTS COM 784117103 11,884 4,391 58.60 933 49.60 0.0006
2026-02-13 2025-12-31 13F SEI INVTS COM 784117103 7,493 -42,243 -84.93 623 -85.24 0.0008
2025-11-13 2025-09-30 13F SEI INVTS COM 784117103 49,736 30,551 159.24 4,220 144.92 0.0050
2025-08-12 2025-06-30 13F SEI INVTS COM 784117103 19,185 -31,023 -61.79 1,724 -55.79 0.0022
2025-05-13 2025-03-31 13F SEI INVTS COM 784117103 50,208 -86,975 -63.40 3,898 -65.56 0.0056
2025-02-11 2024-12-31 13F SEI INVTS COM 784117103 137,183 104,367 318.04 11,315 398.41 0.0155
2024-11-14 2024-09-30 13F SEI INVTS COM 784117103 32,816 6,577 25.07 2,271 33.77 0.0032
2024-08-13 2024-06-30 13F SEI INVTS COM 784117103 26,239 16,824 178.69 1,697 151.04 0.0025
2024-05-14 2024-03-31 13F SEI INVTS COM 784117103 9,415 -512 -5.16 677 7.30 0.0010
2024-02-13 2023-12-31 13F SEI INVTS COM 784117103 9,927 -48,072 -82.88 631 -81.96 0.0010
2023-11-13 2023-09-30 13F SEI INVTS COM 784117103 57,999 36,038 164.10 3,493 166.84 0.0055
2023-08-11 2023-06-30 13F SEI INVTS COM 784117103 21,961 11,611 112.18 1,309 120.00 0.0019
2023-05-12 2023-03-31 13F SEI INVTS COM 784117103 10,350 1,528 17.32 596 15.76 0.0009
2023-02-14 2022-12-31 13F SEI INVTS COM 784117103 8,822 -94 -1.05 514 14.22 0.0009
2022-11-04 2022-09-30 13F SEI INVTS COM 784117103 8,916 -385 -4.14 450 -11.07 0.0008
2022-08-15 2022-06-30 13F SEI INVTS COM 784117103 9,301 -683 -6.84 506 -15.81 0.0008
2022-05-13 2022-03-31 13F SEI INVTS COM 784117103 9,984 -116,729 -92.12 601 -92.51 0.0008
2022-02-14 2021-12-31 13F SEI INVTS COM 784117103 126,713 -53,387 -29.64 8,026 -25.26 0.0100
2021-11-15 2021-09-30 13F SEI INVTS COM 784117103 180,100 -37,287 -17.15 10,739 -20.28 0.0150
2021-08-16 2021-06-30 13F SEI INVTS COM 784117103 217,387 -169,259 -43.78 13,471 -42.82 0.0185
2021-05-12 2021-03-31 13F SEI INVTS COM 784117103 386,646 71,879 22.84 23,558 30.23 0.0353
2021-08-16 2020-12-31 13F/A-1 SEI INVTS COM 0057 784117103 314,767 311,973 11,165.82 18,089 12,638.73 0.0304
2021-02-16 2020-12-31 13F SEI INVTS COM 784117103 314,767 311,973 18,090 0.0304
2021-08-05 2020-09-30 13F/A-1 SEI INVTS COM 784117103 2,794 2,214 381.72 142 343.75 0.0205
2020-11-16 2020-09-30 13F SEI INVTS COM 784117103 450,260 449,680 22,837 0.0431
2021-08-05 2020-06-30 13F/A-1 SEI INVTS COM 0054 784117103 580 346 147.86 32 190.91 0.0059
2020-08-12 2020-06-30 13F SEI INVTS COM 784117103 351,603 351,369 19,331 0.0372
2021-08-05 2020-03-31 13F/A-1 SEI INVESTMENTS COM 0046 784117103 234 75 47.17 11 10.00 0.0029
2020-05-12 2020-03-31 13F SEI INVESTMENTS COM 784117103 147,936 147,777 6,856 0.0152
2021-08-05 2019-12-31 13F/A-1 SEI INVESTMENTS COM 0065 784117103 159 68 74.73 10 100.00 0.0026
2020-02-11 2019-12-31 13F SEI INVESTMENTS COM 784117103 109,616 109,525 7,178 0.0106
2021-08-05 2019-09-30 13F/A-1 SEI INVESTMENTS COM 0059 784117103 91 0 0.00 5 0.00 0.0016
2019-11-13 2019-09-30 13F SEI INVESTMENTS COM 784117103 117,036 116,945 6,936 0.0110
2021-08-05 2019-06-30 13F/A-1 SEI INVESTMENTS COM 784117103 91 -156 -63.16 5 -61.54 0.0017
2019-08-08 2019-06-30 13F SEI INVESTMENTS COM 784117103 149,916 149,669 8,410 0.0131
2021-08-05 2019-03-31 13F/A-1 SEI INVESTMENTS COM 784117103 247 226 1,076.19 13 1,200.00 0.0055
2019-05-15 2019-03-31 13F SEI INVESTMENTS COM 784117103 218,576 218,555 11,421 0.0190
2021-08-05 2018-12-31 13F/A-1 SEI INVESTMENTS COM 784117103 21 -169,421 -99.99 1 -99.99 0.0008
2019-02-07 2018-12-31 13F SEI INVESTMENTS COM 784117103 168,782 -660 7,798 0.0137
2018-11-07 2018-09-30 13F SEI INVESTMENTS COM 784117103 169,442 -90,255 -34.75 10,353 -36.24 0.0153
2018-08-13 2018-06-30 13F SEI INVESTMENTS COM 784117103 259,697 -239,642 -47.99 16,237 -56.59 0.0243
2018-05-04 2018-03-31 13F SEI INVESTMENTS COM 784117103 499,339 -106,814 -17.62 37,406 -14.12 0.0570
2018-02-13 2017-12-31 13F SEI INVESTMENTS COM 784117103 606,153 96,437 18.92 43,558 39.95 0.0593
2017-11-02 2017-09-30 13F SEI INVESTMENTS COM 784117103 509,716 239,000 88.28 31,123 113.77 0.0515
2017-08-07 2017-06-30 13F SEI INVESTMENTS COM 784117103 270,716 100,680 59.21 14,559 69.76 0.0217
2017-05-10 2017-03-31 13F SEI INVESTMENTS COM 784117103 170,036 3,880 2.34 8,576 4.57 0.0134
2017-02-07 2016-12-31 13F SEI INVESTMENTS COM 784117103 166,156 -22,370 -11.87 8,201 -4.63 0.0132
2016-11-04 2016-09-30 13F SEI INVESTMENTS COM 784117103 188,526 25,170 15.41 8,599 9.42 0.0142
2016-08-09 2016-06-30 13F SEI INVESTMENTS COM 784117103 163,356 69,000 73.13 7,859 93.48 0.0132
2016-05-09 2016-03-31 13F SEI INVESTMENTS COM 784117103 94,356 -3,670 -3.74 4,062 -20.93 0.0073
2016-02-12 2015-12-31 13F SEI INVESTMENTS COM 784117103 98,026 -64,090 -39.53 5,137 -34.30 0.0093
2015-11-10 2015-09-30 13F SEI INVESTMENTS COM 784117103 162,116 -426,331 -72.45 7,819 -72.90 0.0154
2015-08-06 2015-06-30 13F SEI INVESTMENTS COM 784117103 588,447 -51,840 -8.10 28,852 2.20 0.0512
2015-05-01 2015-03-31 13F SEI INVESTMENTS COM 784117103 640,287 -146,600 -18.63 28,231 -10.40 0.0489
2015-02-06 2014-12-31 13F SEI INVESTMENTS COM 784117103 786,887 -71,240 -8.30 31,507 1.54 0.0571
2014-11-12 2014-09-30 13F SEI INVESTMENTS COM 784117103 858,127 216,958 33.84 31,030 47.68 0.0584
2014-08-13 2014-06-30 13F SEI INVESTMENTS COM 784117103 641,169 159,262 33.05 21,011 29.72 0.0371
2014-05-14 2014-03-31 13F SEI INVESTMENTS COM 784117103 481,907 4,200 0.88 16,197 -2.37 0.0301
2014-02-11 2013-12-31 13F SEI INVESTMENTS COM 784117103 477,707 147,670 44.74 16,591 62.64 0.0329
2013-11-07 2013-09-30 13F SEI INVESTMENTS COM 784117103 330,037 -141,227 -29.97 10,201 -23.86 0.0217
2013-08-07 2013-06-30 13F SEI INVESTMENTS COM 784117103 471,264 471,264 13,398 0.0297
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.