Centene Corporation
US ˙ NYSE ˙ US15135B1017

SecurityCNC / Centene Corporation
InstitutionOMERS ADMINISTRATION Corp
Latest Disclosed Ownership24,311 shares
Latest Disclosed Value $ 795,942
OMERS ADMINISTRATION Corp reports 26.06% increase in ownership of CNC / Centene Corporation

On May 15, 2026 - OMERS ADMINISTRATION Corp filed a 13F-HR form disclosing ownership of 24,311 shares of Centene Corporation (US:CNC) valued at $795,942 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 19,285 shares of Centene Corporation. This represents a change in shares of 26.06% during the quarter. The current value of the position is $1,447,720 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)
2026-05-15 2026-03-31 13F CENTENE CORP DEL COM 15135B101 24,311 5,026 26.06 796 0.25 0.0051
2026-02-13 2025-12-31 13F CENTENE CORP DEL COM 15135B101 19,285 -31,700 -62.18 794 -56.40 0.0057
2025-11-14 2025-09-30 13F CENTENE CORP DEL COM 15135B101 50,985 0 0.00 1,819 -34.26 0.0130
2025-08-13 2025-06-30 13F CENTENE CORP DEL COM 15135B101 50,985 3,500 7.37 2,767 -3.99 0.0217
2025-05-14 2025-03-31 13F CENTENE CORP DEL COM 15135B101 47,485 24,966 110.87 2,883 111.29 0.0252
2025-02-14 2024-12-31 13F CENTENE CORP DEL COM 15135B101 22,519 3,946 21.25 1,364 -2.43 0.0119
2024-11-13 2024-09-30 13F CENTENE CORP DEL COM 15135B101 18,573 0 0.00 1,398 13.57 0.0129
2024-08-13 2024-06-30 13F CENTENE CORP DEL COM 15135B101 18,573 18,573 1,231 0.0119
2020-02-14 2019-12-31 13F CENTENE CORP DEL COM 15135B101 0 -212,000 -100.00 0 -100.00
2019-11-12 2019-09-30 13F CENTENE CORP DEL COM 15135B101 212,000 212,000 9,171 0.0914
2019-08-08 2019-06-30 13F CENTENE CORP DEL COM 15135B101 0 -24,400 -100.00 0 -100.00
2019-05-15 2019-03-31 13F CENTENE CORP DEL COM 15135B101 24,400 24,400 1,343 0.0155
2018-08-09 2018-06-30 13F CENTENE CORP DEL COM 15135B101 0 -20,500 -100.00 0 -100.00
2018-05-11 2018-03-31 13F CENTENE CORP DEL COM 15135B101 20,500 -4,800 -18.97 2,191 -14.15 0.0213
2018-05-14 2017-12-31 13F/A-1 CENTENE CORP DEL COM 15135B101 25,300 25,300 2,552 0.0255
2018-02-13 2017-12-31 13F CENTENE CORP DEL COM 15135B101 25,300 25,300 2,552
2016-11-14 2016-09-30 13F CENTENE CORP DEL COM 15135B101 0 -50,800 -100.00 0 -100.00
2016-08-11 2016-06-30 13F CENTENE CORP DEL COM 15135B101 50,800 -28,200 -35.70 3,626 -25.45 0.0746
2016-05-12 2016-03-31 13F CENTENE CORP DEL COM 15135B101 79,000 -69,700 -46.87 4,864 -50.30 0.1079
2016-02-11 2015-12-31 13F CENTENE CORP DEL COM 15135B101 148,700 -4,600 -3.00 9,786 17.72 0.2530
2015-11-12 2015-09-30 13F CENTENE CORP DEL COM 15135B101 153,300 76,900 100.65 8,313 35.32 0.2423
2015-08-11 2015-06-30 13F CENTENE CORP DEL COM 15135B101 76,400 76,400 6,143 0.2440
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.