Centene Corporation
US ˙ NYSE ˙ US15135B1017

SecurityCNC / Centene Corporation
InstitutionBoston Partners
Latest Disclosed Ownership341,952 shares
Latest Disclosed Value $ 11,196,308
Boston Partners reports 92.35% decrease in ownership of CNC / Centene Corporation

On May 11, 2026 - Boston Partners filed a 13F-HR form disclosing ownership of 341,952 shares of Centene Corporation (US:CNC) valued at $11,195,508 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,468,990 shares of Centene Corporation. This represents a change in shares of -92.35% during the quarter. The current value of the position is $20,363,242 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 341,952 -4,127,038 -92.35 11,196 -93.91 0.0050
2026-02-13 2025-12-31 13F CENTENE CORP DEL COM 15135B101 4,468,990 -743,706 -14.27 183,950 -1.12 0.1905
2025-11-13 2025-09-30 13F CENTENE CORP DEL COM 15135B101 5,212,696 1,272,498 32.30 186,024 -11.37 0.1910
2025-08-12 2025-06-30 13F/A-1 CENTENE CORP DEL COM 15135B101 3,940,198 38,595 0.99 209,883 -11.37 0.2331
2025-08-07 2025-06-30 13F CENTENE CORP DEL COM 15135B101 3,929,712 28,109 209,314 0.0961
2025-05-13 2025-03-31 13F CENTENE CORP DEL COM 15135B101 3,901,603 2,373,280 155.29 236,802 155.68 0.2864
2025-02-11 2024-12-31 13F CENTENE CORP DEL COM 15135B101 1,528,323 -7,624,593 -83.30 92,619 -86.49 0.1127
2024-11-12 2024-09-30 13F CENTENE CORP DEL COM 15135B101 9,152,916 933,398 11.36 685,472 25.70 0.8090
2024-08-14 2024-06-30 13F CENTENE CORP DEL COM 15135B101 8,219,518 -432,659 -5.00 545,309 -19.57 0.6774
2024-05-28 2024-03-31 13F/A-1 CENTENE CORP DEL COM 15135B101 8,652,177 32,427 0.38 678,033 5.96 0.8076
2024-05-13 2024-03-31 13F CENTENE CORP DEL COM 15135B101 8,652,177 32,427 678,033 0.3355
2024-02-07 2023-12-31 13F CENTENE CORP DEL COM 15135B101 8,619,750 385,839 4.69 639,878 12.82 0.8475
2023-11-08 2023-09-30 13F CENTENE CORP DEL COM 15135B101 8,233,911 -1,332,349 -13.93 567,175 -12.03 0.7852
2023-08-10 2023-06-30 13F CENTENE CORP DEL COM 15135B101 9,566,260 1,395,853 17.08 644,764 24.51 0.8679
2023-05-09 2023-03-31 13F CENTENE CORP DEL COM 15135B101 8,170,407 -2,076,701 -20.27 517,845 -38.21 0.7119
2023-02-08 2022-12-31 13F CENTENE CORP DEL COM 15135B101 10,247,108 -1,283,376 -11.13 838,063 -6.86 1.1337
2022-11-09 2022-09-30 13F CENTENE CORP DEL COM 15135B101 11,530,484 -599,912 -4.95 899,752 -12.52 1.3168
2022-08-10 2022-06-30 13F CENTENE CORP DEL COM 15135B101 12,130,396 346,724 2.94 1,028,530 3.57 1.4374
2022-05-10 2022-03-31 13F CENTENE CORP DEL COM 15135B101 11,783,672 945,472 8.72 993,033 11.30 1.2030
2022-02-04 2021-12-31 13F CENTENE CORP DEL COM 15135B101 10,838,200 1,317,451 13.84 892,241 50.36 1.0747
2021-11-05 2021-09-30 13F CENTENE CORP DEL COM 15135B101 9,520,749 165,333 1.77 593,388 -13.04 0.7517
2021-08-12 2021-06-30 13F CENTENE CORP DEL COM 15135B101 9,355,416 4,701,038 101.00 682,395 129.39 0.8703
2021-05-10 2021-03-31 13F CENTENE CORP DEL COM 15135B101 4,654,378 367,943 8.58 297,487 15.61 0.3989
2021-02-10 2020-12-31 13F/A-1 CENTENE CORP DEL COM 15135B101 4,286,435 -53,508 -1.23 257,314 1.65 0.4002
2021-02-04 2020-12-31 13F CENTENE CORP DEL COM 15135B101 4,286,435 -53,508 257,314 154,373.1056
2020-11-13 2020-09-30 13F/A-1 CENTENE CORP DEL COM 15135B101 4,339,943 -66,396 -1.51 253,148 -9.62 0.4610
2020-11-09 2020-09-30 13F CENTENE CORP DEL COM 15135B101 4,406,339 0 280,086 205,616.4885
2020-08-12 2020-06-30 13F CENTENE CORP DEL COM 15135B101 4,406,339 -264,621 -5.67 280,086 0.96 0.5144
2020-05-13 2020-03-31 13F CENTENE CORP DEL COM 15135B101 4,670,960 -149,326 -3.10 277,422 -8.45 0.5509
2020-02-06 2019-12-31 13F/A-1 CENTENE CORP DEL COM 15135B101 4,820,286 459,570 10.54 303,025 60.45 0.4008
2020-02-05 2019-12-31 13F CENTENE CORP DEL COM 15135B101 4,820,286 459,570 303,025 170,369.5054
2019-11-20 2019-09-30 13F/A-1 CENTENE CORP DEL COM 15135B101 4,360,716 -615,295 -12.37 188,863 -27.63 0.2557
2019-11-08 2019-09-30 13F CENTENE CORP DEL COM 15135B101 4,973,398 -2,613 260,797 0.3449
2019-08-26 2019-06-30 13F/A-1 CENTENE CORP DEL COM 15135B101 4,976,011 2,626,873 111.82 260,985 109.22 0.3423
2019-08-09 2019-06-30 13F CENTENE CORP DEL COM 15135B101 4,976,108 2,626,970 260,990
2019-05-13 2019-03-31 13F/A-1 CENTENE CORP DEL COM 15135B101 2,349,138 1,718,535 272.52 124,739 71.56 0.1653
2019-05-03 2019-03-31 13F CENTENE CORP DEL COM 15135B101 2,349,138 1,718,535 124,739
2019-02-07 2018-12-31 13F CENTENE CORP DEL COM 15135B101 630,603 630,603 72,708 0.1045
2017-05-03 2017-03-31 13F CENTENE CORP DEL COM 15135B101 0 -54,618 -100.00 0 -100.00
2017-02-06 2016-12-31 13F CENTENE CORP DEL COM 15135B101 54,618 -2,745 -4.79 3,086 -19.66 0.0041
2016-11-09 2016-09-30 13F CENTENE CORP DEL COM 15135B101 57,363 7,843 15.84 3,841 8.69 0.0054
2016-08-05 2016-06-30 13F CENTENE CORP DEL COM 15135B101 49,520 -377 -0.76 3,534 15.04 0.0051
2016-05-12 2016-03-31 13F CENTENE CORP DEL COM 15135B101 49,897 -7,368 -12.87 3,072 -18.49 0.0045
2016-02-08 2015-12-31 13F CENTENE CORP DEL COM 15135B101 57,265 -24,742 -30.17 3,769 -15.25 0.0054
2015-11-10 2015-09-30 13F CENTENE CORP DEL COM 15135B101 82,007 1,202 1.49 4,447 -31.55 0.0068
2015-08-10 2015-06-30 13F CENTENE CORP DEL COM 15135B101 80,805 25,098 45.05 6,497 64.98 0.0093
2015-05-05 2015-03-31 13F CENTENE CORP DEL COM 15135B101 55,707 17,357 45.26 3,938 -1.10 0.0059
2015-02-09 2014-12-31 13F CENTENE CORP DEL COM 15135B101 38,350 -118,174 -75.50 3,982 -69.24 0.0060
2014-11-12 2014-09-30 13F CENTENE CORP DEL COM 15135B101 156,524 -120,794 -43.56 12,946 -38.26 0.0210
2014-08-08 2014-06-30 13F CENTENE CORP DEL COM 15135B101 277,318 -364 -0.13 20,968 21.30 0.0351
2014-05-07 2014-03-31 13F CENTENE CORP DEL COM 15135B101 277,682 -2,332 -0.83 17,286 4.72 0.0315
2014-02-06 2013-12-31 13F CENTENE CORP DEL COM 15135B101 280,014 -15,604 -5.28 16,507 -12.70 0.0338
2013-11-12 2013-09-30 13F CENTENE CORP DEL COM 15135B101 295,618 -4,584 -1.53 18,908 20.06 0.0456
2013-08-01 2013-06-30 13F CENTENE CORP DEL COM 15135B101 300,202 300,202 15,749 0.0434
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.