Centene Corporation
US ˙ NYSE ˙ US15135B1017

SecurityCNC / Centene Corporation
InstitutionWestpac Banking Corp
Latest Disclosed Ownership41,251 shares
Latest Disclosed Value $ 1,350,558
Westpac Banking Corp reports 40.09% decrease in ownership of CNC / Centene Corporation

On May 11, 2026 - Westpac Banking Corp filed a 13F-HR form disclosing ownership of 41,251 shares of Centene Corporation (US:CNC) valued at $1,350,558 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 68,859 shares of Centene Corporation. This represents a change in shares of -40.09% during the quarter. The current value of the position is $2,456,497 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)
2026-05-11 2026-03-31 13F CENTENE CORP DEL COM 15135B101 41,251 -27,608 -40.09 1,351 -52.35 0.0470
2026-02-10 2025-12-31 13F CENTENE CORP DEL COM 15135B101 68,859 18,095 35.65 2,834 56.43 0.1790
2025-11-14 2025-09-30 13F/A-1 CENTENE CORP USD 0.001 COM 15135B101 50,764 13,755 37.17 1,811 -9.81 0.1123
2025-11-12 2025-09-30 13F CENTENE CORP USD 0.001 COM 15135B101 50,764 13,755 1,811 0.0455
2025-08-11 2025-06-30 13F CENTENE CORP DEL COM 15135B101 37,009 -381 -1.02 2,009 -11.50 0.1343
2025-05-13 2025-03-31 13F CENTENE CORP DEL COM 15135B101 37,390 -4,394 -10.52 2,270 -10.35 0.1670
2025-02-12 2024-12-31 13F CENTENE CORP DEL COM 15135B101 41,784 14,560 53.48 2,531 23.52 0.1680
2024-11-08 2024-09-30 13F CENTENE CORP DEL COM 15135B101 27,224 2,840 11.65 2,049 26.79 0.1374
2024-08-14 2024-06-30 13F/A-1 CENTENE CORP DEL COM 15135B101 24,384 5,345 28.07 1,617 8.17 0.1282
2024-08-13 2024-06-30 13F CENTENE CORP DEL COM 15135B101 21,521 2,482 1,617 0.0556
2024-05-09 2024-03-31 13F CENTENE CORP DEL COM 15135B101 19,039 2,673 16.33 1,494 23.06 0.1138
2024-02-08 2023-12-31 13F CENTENE CORP DEL COM 15135B101 16,366 3,143 23.77 1,215 33.41 0.1001
2023-11-13 2023-09-30 13F CENTENE CORP DEL COM 15135B101 13,223 4,225 46.95 911 50.17 0.0681
2023-08-10 2023-06-30 13F CENTENE CORP DEL COM 15135B101 8,998 -186,220 -95.39 607 -95.09 0.0428
2023-05-04 2023-03-31 13F CENTENE CORP DEL COM 15135B101 195,218 5,999 3.17 12,340 -20.48 0.1659
2023-02-06 2022-12-31 13F CENTENE CORP DEL COM 15135B101 189,219 13,424 7.64 15,518 13.44 0.2294
2022-11-08 2022-09-30 13F CENTENE CORP DEL COM 15135B101 175,795 -49,188 -21.86 13,679 -28.14 0.2085
2022-08-10 2022-06-30 13F CENTENE CORP DEL COM 15135B101 224,983 -14,051 -5.88 19,036 -5.41 0.2480
2022-05-11 2022-03-31 13F CENTENE CORP DEL COM 15135B101 239,034 -4,695 -1.93 20,124 0.20 0.2309
2022-02-08 2021-12-31 13F CENTENE CORP DEL COM 15135B101 243,729 -24,229 -9.04 20,083 20.29 0.2081
2021-10-27 2021-09-30 13F CENTENE CORP DEL COM 15135B101 267,958 13,869 5.46 16,696 -9.90 0.1785
2021-08-11 2021-06-30 13F CENTENE CORP DEL COM 15135B101 254,089 62,788 32.82 18,531 51.56 0.1861
2021-05-13 2021-03-31 13F CENTENE CORP DEL COM 15135B101 191,301 -1,665 -0.86 12,226 5.55 0.1349
2021-02-11 2020-12-31 13F CENTENE CORP DEL COM 15135B101 192,966 19,643 11.33 11,584 14.58 0.1315
2020-11-10 2020-09-30 13F CENTENE CORP DEL COM 15135B101 173,323 -4,578 -2.57 10,110 -10.58 0.1370
2020-08-12 2020-06-30 13F CENTENE CORP DEL COM 15135B101 177,901 -32,456 -15.43 11,306 -9.54 0.1685
2020-05-14 2020-03-31 13F CENTENE CORP DEL COM 15135B101 210,357 35,589 20.36 12,497 13.74 0.2153
2020-02-11 2019-12-31 13F CENTENE CORP DEL COM 15135B101 174,768 46,172 35.90 10,988 97.50 0.1414
2019-11-13 2019-09-30 13F CENTENE CORP DEL COM 15135B101 128,596 99,900 348.13 5,563 269.88 0.0773
2019-08-01 2019-06-30 13F CENTENE CORP DEL COM 15135B101 28,696 -18,028 -38.58 1,505 -39.38 0.0230
2019-05-14 2019-03-31 13F CENTENE CORP DEL COM 15135B101 46,724 25,398 119.09 2,481 0.94 0.0410
2019-02-07 2018-12-31 13F CENTENE CORP DEL COM 15135B101 21,326 -38,755 -64.50 2,459 -71.74 0.0419
2018-11-13 2018-09-30 13F CENTENE CORP DEL COM 15135B101 60,081 -7,050 -10.50 8,699 5.16 0.1491
2018-07-18 2018-06-30 13F CENTENE CORP DEL COM 15135B101 67,131 -11,935 -15.09 8,271 -2.11 0.1589
2018-05-01 2018-03-31 13F CENTENE CORP DEL COM 15135B101 79,066 17,546 28.52 8,450 36.14 0.1687
2018-01-18 2017-12-31 13F CENTENE CORP DEL COM 15135B101 61,520 -17,900 -22.54 6,206 -19.25 0.1410
2017-10-30 2017-09-30 13F CENTENE CORP DEL COM 15135B101 79,420 67,302 555.39 7,685 694.73 0.1692
2017-08-09 2017-06-30 13F CENTENE CORP DEL COM 15135B101 12,118 -89,415 -88.06 968 -86.63 0.0213
2017-05-18 2017-03-31 13F/A-1 CENTENE CORP DEL COM 15135B101 101,533 74,541 276.16 7,235 325.59 0.0580
2017-05-11 2017-03-31 13F CENTENE CORP DEL COM 15135B101 70,417 4,966
2017-02-09 2016-12-31 13F CENTENE CORP DEL COM 15135B101 26,992 4,931 22.35 1,700 15.10 0.0160
2016-11-10 2016-09-30 13F CENTENE CORP DEL COM 15135B101 22,061 2,727 14.10 1,477 7.11 0.0160
2016-08-10 2016-06-30 13F CENTENE CORP DEL COM 15135B101 19,334 9,672 100.10 1,380 132.15 0.0151
2016-05-13 2016-03-31 13F CENTENE CORP DEL COM 15135B101 9,662 -6,897 -41.65 595 -45.45 0.0065
2016-02-11 2015-12-31 13F CENTENE CORP DEL COM 15135B101 16,559 -31,621 -65.63 1,090 -58.31 0.0121
2015-11-16 2015-09-30 13F/A-1 CENTENE CORP DEL COM 15135B101 48,180 4,765 10.98 2,613 -25.16 0.0288
2015-11-12 2015-09-30 13F CENTENE CORP DEL COM 15135B101 48,180 2,613
2015-08-12 2015-06-30 13F CENTENE CORP DEL COM 15135B101 43,415 -3,585 -7.63 3,491 5.06 0.0341
2015-05-12 2015-03-31 13F CENTENE CORP DEL COM 15135B101 47,000 47,000 3,322 0.0289
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.