Centene Corporation
US ˙ NYSE ˙ US15135B1017

SecurityCNC / Centene Corporation
InstitutionBoothbay Fund Management, Llc
Latest Disclosed Ownership47,503 shares
Latest Disclosed Value $ 1,555,248
Boothbay Fund Management, Llc ownership in CNC / Centene Corporation

On May 15, 2026 - Boothbay Fund Management, Llc filed a 13F-HR form disclosing ownership of 47,503 shares of Centene Corporation (US:CNC) valued at $1,555,248 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 13,507 shares of Centene Corporation. This represents a change in shares of 251.69% during the quarter. The current value of the position is $2,960,862 USD.

Boothbay Fund Management, Llc has a history of taking positions in derivatives of the underlying security (CNC) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

CNC / Centene Corporation Historical Put/Call Ratio
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 47,503 33,996 251.69 1,555 180.18 0.0202
2026-02-17 2025-12-31 13F CENTENE CORP DEL COM 15135B101 13,507 -7,086 -34.41 556 -24.39 0.0083
2025-11-14 2025-09-30 13F CENTENE CORP DEL COM 15135B101 20,593 4,414 27.28 735 -16.40 0.0107
2025-08-14 2025-06-30 13F CENTENE CORP DEL COM 15135B101 16,179 16,179 878 0.0171
2025-02-14 2024-12-31 13F CENTENE CORP DEL COM 15135B101 0 -7,098 -100.00 0 -100.00
2024-11-14 2024-09-30 13F CENTENE CORP DEL COM 15135B101 7,098 7,098 534 0.0122
2023-08-14 2023-06-30 13F CENTENE CORP DEL COM 15135B101 0 -14,981 -100.00 0 -100.00
2023-05-15 2023-03-31 13F CENTENE CORP DEL COM 15135B101 14,981 -126,312 -89.40 947 -91.84 0.0194
2023-02-14 2022-12-31 13F CENTENE CORP DEL COM 15135B101 141,293 114,270 422.86 11,587 450.97 0.2681
2022-11-14 2022-09-30 13F CENTENE CORP DEL COM 15135B101 27,023 -20,478 -43.11 2,103 -47.67 0.0525
2022-08-15 2022-06-30 13F CENTENE CORP DEL COM 15135B101 47,501 26,110 122.06 4,019 123.15 0.1058
2022-05-16 2022-03-31 13F CENTENE CORP DEL COM 15135B101 21,391 2,293 12.01 1,801 14.42 0.0419
2022-02-14 2021-12-31 13F CENTENE CORP DEL COM 15135B101 19,098 -113,332 -85.58 1,574 -80.93 0.0370
2021-11-15 2021-09-30 13F CENTENE CORP DEL COM 15135B101 132,430 132,430 8,252 0.2283
2021-08-17 2021-06-30 13F/A-1 CENTENE CORP DEL COM 15135B101 0 -52,789 -100.00 0 -100.00
2021-05-17 2021-03-31 13F CENTENE CORP DEL COM 15135B101 52,789 11,788 28.75 3,374 37.10 0.1264
2021-02-12 2020-12-31 13F CENTENE CORP DEL COM 15135B101 41,001 29,063 243.45 2,461 253.59 0.0916
2020-11-16 2020-09-30 13F CENTENE CORP DEL COM 15135B101 11,938 -2,569 -17.71 696 -24.51 0.0421
2020-08-14 2020-06-30 13F CENTENE CORP DEL COM 15135B101 14,507 4,264 41.63 922 51.40 0.0630
2020-05-15 2020-03-31 13F CENTENE CORP DEL COM 15135B101 10,243 -3,329 -24.53 609 -28.60 0.0505
2020-02-14 2019-12-31 13F CENTENE CORP DEL COM 15135B101 13,572 -21,212 -60.98 853 -43.32 0.0742
2019-11-14 2019-09-30 13F Centene COM 15135B101 34,784 27,344 367.53 1,505 285.90 0.1380
2019-08-14 2019-06-30 13F CENTENE CORP DEL COM 15135B101 7,440 -76,132 -91.10 390 -91.21 0.0355
2019-05-15 2019-03-31 13F CENTENE CORP DEL COM 15135B101 83,572 83,572 4,438 0.4300
2017-05-15 2017-03-31 13F CENTENE CORP DEL COM 15135B101 0 -5,997 -100.00 0 -100.00
2017-07-18 2016-12-31 13F/A-2 CENTENE CORP DEL COM 15135B101 5,997 5,997 339 0.0772
2017-02-16 2016-12-31 13F/A-1 CENTENE CORP DEL COM 15135B101 5,997 0 339 0.0837
2017-02-15 2016-12-31 13F CENTENE CORP DEL COM 15135B101 5,997 339 0.1114
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2021-05-17 2021-03-31 13F CENTENE CORP DEL CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-12 2020-12-31 13F CENTENE CORP DEL CALL Call 1,068 6,411 n/a n/a n/a
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.