SEI投資公司
US ˙ NasdaqGS ˙ US7841171033

SecuritySEIC / SEI Investments Company
InstitutionInvesco Ltd.
Latest Disclosed Ownership1,145,404 shares
Latest Disclosed Value $ 89,879,852
Invesco Ltd. reports 33.88% decrease in ownership of SEIC / SEI Investments Company

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 1,145,404 shares of SEI Investments Company (US:SEIC) valued at $89,879,852 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 1,732,384 shares of SEI Investments Company. This represents a change in shares of -33.88% during the quarter. The current value of the position is $101,459,886 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)
2026-05-12 2026-03-31 13F SEI INVTS COM 784117103 1,145,404 -586,980 -33.88 89,880 -36.75 0.0017
2026-02-19 2025-12-31 13F SEI INVTS COM 784117103 1,732,384 861 0.05 142,090 -3.29 0.0218
2025-11-13 2025-09-30 13F SEI INVTS COM 784117103 1,731,523 68,873 4.14 146,920 -1.66 0.0231
2025-08-13 2025-06-30 13F SEI INVTS COM 784117103 1,662,650 -40,312 -2.37 149,406 13.01 0.0254
2025-05-12 2025-03-31 13F SEI INVTS COM 784117103 1,702,962 -552,075 -24.48 132,201 -28.92 0.0250
2025-02-13 2024-12-31 13F SEI INVTS COM 784117103 2,255,037 -302,003 -11.81 185,995 5.13 0.0344
2024-11-12 2024-09-30 13F SEI INVTS COM 784117103 2,557,040 161,935 6.76 176,922 14.19 0.0342
2024-08-13 2024-06-30 13F SEI INVTS COM 784117103 2,395,105 23,684 1.00 154,939 -9.13 0.0328
2024-05-14 2024-03-31 13F SEI INVTS COM 784117103 2,371,421 1,020,957 75.60 170,505 98.68 0.0366
2024-02-13 2023-12-31 13F SEI INVTS COM 784117103 1,350,464 224,805 19.97 85,822 26.58 0.0204
2023-11-13 2023-09-30 13F SEI INVTS COM 784117103 1,125,659 475,226 73.06 67,798 74.84 0.0183
2023-08-11 2023-06-30 13F SEI INVTS COM 784117103 650,433 44,375 7.32 38,779 11.18 0.0102
2023-05-12 2023-03-31 13F SEI INVTS COM 784117103 606,058 1,145 0.19 34,879 -1.10 0.0097
2023-02-13 2022-12-31 13F SEI INVTS COM 784117103 604,913 54,807 9.96 35,266 30.71 0.0103
2022-11-14 2022-09-30 13F SEI INVTS COM 784117103 550,106 -5,996 -1.08 26,980 -10.18 0.0087
2022-08-15 2022-06-30 13F SEI INVTS COM 784117103 556,102 268,983 93.68 30,039 73.76 0.0091
2022-05-16 2022-03-31 13F SEI INVTS COM 784117103 287,119 -220,051 -43.39 17,288 -44.07 0.0044
2022-02-14 2021-12-31 13F SEI INVTS COM 784117103 507,170 -22,802 -4.30 30,908 -1.65 0.0075
2021-11-15 2021-09-30 13F SEI INVTS COM 784117103 529,972 -12,903 -2.38 31,425 -6.59 0.0080
2021-08-17 2021-06-30 13F SEI INVTS COM 784117103 542,875 -24,112 -4.25 33,643 -2.62 0.0083
2021-05-17 2021-03-31 13F SEI INVTS COM 784117103 566,987 14,357 2.60 34,547 8.78 0.0092
2021-02-16 2020-12-31 13F SEI INVTS COM 784117103 552,630 -46,547 -7.77 31,760 4.51 0.0092
2020-11-16 2020-09-30 13F SEI INVTS COM 784117103 599,177 -97,994 -14.06 30,390 -20.72 0.0103
2020-08-14 2020-06-30 13F SEI INVTS COM 784117103 697,171 490,415 237.20 38,331 300.03 0.0137
2020-05-15 2020-03-31 13F SEI INVESTMENTS COM 784117103 206,756 89,132 75.78 9,582 24.39 0.0040
2020-02-14 2019-12-31 13F SEI INVESTMENTS COM 784117103 117,624 -5,418 -4.40 7,703 5.65 0.0024
2019-11-14 2019-09-30 13F SEI INVESTMENTS COM 784117103 123,042 -5,648 -4.39 7,291 1.00 0.0019
2019-08-14 2019-06-30 13F/A-1 SEI INVESTMENTS COM 784117103 128,690 -33,522 -20.67 7,219 -14.83 0.0019
2019-08-14 2019-06-30 13F SEI INVESTMENTS COM 784117103 128,690 -142,632 7,219
2019-05-15 2019-03-31 13F SEI INVESTMENTS COM 784117103 162,212 -316,542 -66.12 8,476 -61.68 0.0029
2019-02-14 2018-12-31 13F SEI INVESTMENTS COM 784117103 478,754 -28,749 -5.66 22,119 -28.67 0.0085
2018-11-14 2018-09-30 13F SEI INVESTMENTS COM 784117103 507,503 25,914 5.38 31,008 2.98 0.0098
2018-08-14 2018-06-30 13F SEI INVESTMENTS COM 784117103 481,589 -157,028 -24.59 30,110 -37.06 0.0100
2018-05-15 2018-03-31 13F SEI INVESTMENTS COM 784117103 638,617 -431,618 -40.33 47,840 -37.79 0.0179
2018-02-14 2017-12-31 13F SEI INVESTMENTS COM 784117103 1,070,235 -122,538 -10.27 76,907 5.60 0.0277
2017-11-14 2017-09-30 13F SEI INVESTMENTS COM 784117103 1,192,773 259,744 27.84 72,831 45.15 0.0269
2017-08-14 2017-06-30 13F SEI INVESTMENTS COM 784117103 933,029 -11,227 -1.19 50,178 5.35 0.0156
2017-05-15 2017-03-31 13F SEI INVESTMENTS COM 784117103 944,256 10,165 1.09 47,628 3.30 0.0156
2017-02-14 2016-12-31 13F SEI INVESTMENTS COM 784117103 934,091 801,820 606.19 46,107 664.25 0.0155
2016-11-14 2016-09-30 13F SEI INVESTMENTS COM 784117103 132,271 9,224 7.50 6,033 1.91 0.0021
2016-08-15 2016-06-30 13F SEI INVESTMENTS COM 784117103 123,047 -6,568 -5.07 5,920 6.09 0.0022
2016-05-16 2016-03-31 13F SEI INVESTMENTS COM 784117103 129,615 -24,401 -15.84 5,580 -30.86 0.0023
2016-02-16 2015-12-31 13F SEI INVESTMENTS COM 784117103 154,016 -2,792 -1.78 8,070 6.70 0.0032
2015-11-16 2015-09-30 13F SEI INVESTMENTS COM 784117103 156,808 12,255 8.48 7,563 6.70 0.0032
2015-08-14 2015-06-30 13F SEI INVESTMENTS COMMON 784117103 144,553 26,789 22.75 7,088 36.49 0.0028
2015-05-15 2015-03-31 13F SEI INVESTMENTS COMMON 784117103 117,764 13,504 12.95 5,193 24.38 0.0020
2015-02-13 2014-12-31 13F SEI INVESTMENTS COMMON 784117103 104,260 10,485 11.18 4,175 23.12 0.0016
2014-11-14 2014-09-30 13F SEI INVESTMENTS COMMON 784117103 93,775 -494,805 -84.07 3,391 -82.42 0.0014
2014-08-14 2014-06-30 13F SEI INVESTMENTS COMMON 784117103 588,580 -956,218 -61.90 19,288 -62.85 0.0076
2014-05-15 2014-03-31 13F SEI INVESTMENTS COMMON 784117103 1,544,798 -21,815 -1.39 51,920 -4.57 0.0211
2014-02-13 2013-12-31 13F SEI INVESTMENTS COMMON 784117103 1,566,613 16,861 1.09 54,408 13.58 0.0216
2013-11-13 2013-09-30 13F SEI INVESTMENTS COMMON 784117103 1,549,752 8,010 0.52 47,903 9.29 0.0208
2013-08-14 2013-06-30 13F SEI INVESTMENTS COMMON 784117103 1,541,742 1,541,742 43,831 0.0204
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.