Centene Corporation
US ˙ NYSE ˙ US15135B1017

SecurityCNC / Centene Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership1,598,330 shares
Latest Disclosed Value $ 65,770,985
Sei Investments Co reports 14.26% increase in ownership of CNC / Centene Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 1,598,330 shares of Centene Corporation (US:CNC) valued at $65,771,280 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 1,398,796 shares of Centene Corporation. This represents a change in shares of 14.26% during the quarter. The current value of the position is $95,180,552 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)
2026-02-13 2025-12-31 13F CENTENE CORP DEL COM 15135B101 1,598,330 199,534 14.26 65,771 31.78 0.0649
2025-11-13 2025-09-30 13F CENTENE CORP DEL COM 15135B101 1,398,796 16,298 1.18 49,909 -33.49 0.0537
2025-08-14 2025-06-30 13F CENTENE CORP DEL COM 15135B101 1,382,498 -106,302 -7.14 75,043 -16.97 0.0870
2025-05-14 2025-03-31 13F/A-1 CENTENE CORP DEL COM 15135B101 1,488,800 -52,941 -3.43 90,383 -3.23 0.1163
2025-05-13 2025-03-31 13F CENTENE CORP DEL COM 15135B101 1,548,163 6,422 93,799 0.1020
2025-02-11 2024-12-31 13F CENTENE CORP DEL COM 15135B101 1,541,741 415,009 36.83 93,398 10.11 0.1199
2024-11-12 2024-09-30 13F CENTENE CORP DEL COM 15135B101 1,126,732 59,869 5.61 84,821 19.92 0.1101
2024-08-13 2024-06-30 13F CENTENE CORP DEL COM 15135B101 1,066,863 88 0.01 70,733 -15.51 0.1002
2024-05-07 2024-03-31 13F CENTENE CORP DEL COM 15135B101 1,066,775 69,565 6.98 83,720 13.13 0.1227
2024-02-14 2023-12-31 13F CENTENE CORP DEL COM 15135B101 997,210 181,084 22.19 74,003 31.64 0.1188
2023-11-14 2023-09-30 13F CENTENE CORP DEL COM 15135B101 816,126 109,733 15.53 56,214 17.99 0.1010
2023-08-11 2023-06-30 13F CENTENE CORP DEL COM 15135B101 706,393 152,857 27.61 47,646 36.17 0.0831
2023-05-12 2023-03-31 13F CENTENE CORP DEL COM 15135B101 553,536 142,807 34.77 34,989 3.88 0.0650
2023-02-10 2022-12-31 13F CENTENE CORP DEL COM 15135B101 410,729 -24,847 -5.70 33,684 -0.61 0.0749
2022-11-14 2022-09-30 13F CENTENE CORP DEL COM 15135B101 435,576 70,472 19.30 33,891 9.57 0.0756
2022-08-15 2022-06-30 13F CENTENE CORP DEL COM 15135B101 365,104 93,551 34.45 30,930 35.07 0.0668
2022-05-13 2022-03-31 13F CENTENE CORP DEL COM 15135B101 271,553 -46,693 -14.67 22,899 -12.80 0.0460
2022-02-14 2021-12-31 13F CENTENE CORP DEL COM 15135B101 318,246 -34,836 -9.87 26,259 19.02 0.0493
2021-11-12 2021-09-30 13F CENTENE CORP DEL COM 15135B101 353,082 218,800 162.94 22,063 125.32 0.0463
2021-08-06 2021-06-30 13F CENTENE CORP DEL COM 15135B101 134,282 -95,684 -41.61 9,792 -33.10 0.0217
2021-05-12 2021-03-31 13F CENTENE CORP DEL COM 15135B101 229,966 54,442 31.02 14,636 39.09 0.0369
2021-02-08 2020-12-31 13F CENTENE CORP DEL COM 15135B101 175,524 -8,768 -4.76 10,523 -2.08 0.0272
2020-12-04 2020-09-30 13F/A-1 CENTENE CORP DEL COM 15135B101 184,292 -22,944 -11.07 10,747 -18.49 0.0311
2020-11-06 2020-09-30 13F CENTENE CORP DEL COM 15135B101 187,781 -19,455 10,951 26,367.5732
2020-08-17 2020-06-30 13F/A-1 CENTENE CORP DEL COM 15135B101 207,236 -31,583 -13.22 13,185 -7.05 0.0409
2020-08-11 2020-06-30 13F CENTENE CORP DEL COM 15135B101 125,596 -113,223 7,922 21,488.8467
2020-05-14 2020-03-31 13F CENTENE CORP DEL COM 15135B101 238,819 123,895 107.81 14,185 95.90 0.0521
2020-02-06 2019-12-31 13F CENTENE CORP DEL COM 15135B101 114,924 -12,189 -9.59 7,241 31.87 0.0216
2019-11-12 2019-09-30 13F CENTENE CORP DEL COM 15135B101 127,113 679 0.54 5,491 -17.47 0.0140
2019-08-14 2019-06-30 13F CENTENE CORP DEL COM 15135B101 126,434 -31,587 -19.99 6,653 -20.91 0.0217
2019-05-15 2019-03-31 13F CENTENE CORP DEL COM 15135B101 158,021 -2,682 -1.67 8,412 -62.43 0.0283
2019-02-13 2018-12-31 13F CENTENE CORP DEL COM 15135B101 160,703 24,496 17.98 22,393 13.45 0.0797
2018-11-08 2018-09-30 13F CENTENE CORP DEL COM 15135B101 136,207 -14,248 -9.47 19,738 6.48 0.0715
2018-08-03 2018-06-30 13F CENTENE CORP DEL COM 15135B101 150,455 -5,350 -3.43 18,537 11.33 0.0630
2018-05-11 2018-03-31 13F CENTENE CORP DEL COM 15135B101 155,805 -16,851 -9.76 16,650 -4.40 0.0638
2018-02-08 2017-12-31 13F CENTENE CORP DEL COM 15135B101 172,656 -5,740 -3.22 17,417 0.89 0.0605
2017-11-06 2017-09-30 13F CENTENE CORP DEL COM 15135B101 178,396 -82,206 -31.54 17,263 -17.07 0.0614
2017-07-31 2017-06-30 13F CENTENE CORP DEL COM 15135B101 260,602 -4,334 -1.64 20,817 10.26 0.0830
2017-05-05 2017-03-31 13F CENTENE CORP DEL COM 15135B101 264,936 37,275 16.37 18,880 46.75 0.0827
2017-02-02 2016-12-31 13F CENTENE CORP DEL COM 15135B101 227,661 -90,280 -28.40 12,865 -39.57 0.0623
2016-11-04 2016-09-30 13F CENTENE CORP DEL COM 15135B101 317,941 11,174 3.64 21,290 -2.75 0.1081
2016-08-11 2016-06-30 13F CENTENE CORP DEL COM 15135B101 306,767 29,555 10.66 21,893 28.26 0.1313
2016-05-10 2016-03-31 13F/A-1 CENTENE CORP DEL COM 15135B101 277,212 124,097 81.05 17,069 69.39 0.1062
2016-02-03 2015-12-31 13F CENTENE CORP DEL COM 15135B101 153,115 93,815 158.20 10,077 213.24 0.0614
2015-11-02 2015-09-30 13F/A-1 CENTENE CORP DEL COM 15135B101 59,300 44,243 293.84 3,217 165.87 0.0295
2015-10-30 2015-09-30 13F CENTENE CORP DEL COM 15135B101 59,300 3,217
2015-08-07 2015-06-30 13F/A-1 CENTENE CORP DEL COM 15135B101 15,057 -4,120 -21.48 1,210 -10.77 0.0109
2015-08-04 2015-06-30 13F CENTENE CORP DEL COM 15135B101 15,057 -4,120 1,210 0.0109
2015-05-14 2015-03-31 13F/A-1 CENTENE CORP DEL COM 15135B101 19,177 14,912 349.64 1,356 205.41 0.0118
2015-05-01 2015-03-31 13F CENTENE CORP DEL COM 15135B101 19,177 1,356
2015-02-10 2014-12-31 13F CENTENE CORP DEL COM 15135B101 4,265 4,265 444 0.0039
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.