Centene Corp
Ownership
Ownership Structure
Who owns Centene Corp (CNC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 93.9% of the shares are freely tradable; institutional investors hold 100.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.39 | 41,446,046 | +4.1 | 06/30/2026 |
| Vanguard Capital Management, LLC | 6.37 | 31,478,140 | +0.8 | 06/30/2026 |
| AQR Capital Management LLC | 5.81 | 28,678,701 | -14.7 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.52 | 22,352,704 | +3.3 | 06/30/2026 |
| State Street Corp | 4.45 | 21,965,370 | +1.5 | 06/30/2026 |
| Geode Capital Management, LLC | 2.69 | 13,309,729 | +2.5 | 06/30/2026 |
| Wellington Management Company LLP | 2.69 | 13,301,215 | +423.0 | 06/30/2026 |
| Ameriprise Financial Inc | 2.51 | 12,419,397 | +22.6 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.17 | 15,662,682 | -0.2 | 09/30/2026 |
| Vanguard 500 Index Investor | 2.63 | 12,978,206 | +4.1 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Eppinger Frederick H | Director | 370,402 | 25,002,112 $ | Sep 30, 2026 | direct |
| Koster Christopher | Secretary & General Counsel | 248,854 | 16,797,644 $ | Aug 26, 2026 | direct |
| Carson Michael A | Group President, Medicare&Spec | 115,752 | 7,813,260 $ | Oct 15, 2026 | direct |
| Pienkos Theodore J | Corporate Controller & CAO | 28,751 | 1,940,726 $ | Sep 15, 2026 | direct |
| Samuels Theodore R. II | Director | 25,796 | 1,741,229 $ | Sep 30, 2026 | direct |
| Coughlin Christopher J | Director | 19,294 | 1,302,340 $ | Sep 30, 2026 | direct |
| Tanji Kenneth | Director | 13,093 | 883,778 $ | Sep 30, 2026 | direct |
| Tyler Lauren M | Director | 3,698 | 249,615 $ | Sep 30, 2026 | direct |
| Diaz Paul J | Director | 2,771 | 187,043 $ | Jul 28, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 15, 2026 | Carson Michael A | Group President, Medicare&Spec | Other | 7,130 | 70.16 | 500,241 |
| Sep 30, 2026 | Tyler Lauren M | Director | Other | 482 | 0.00 | – |
| Sep 30, 2026 | Tanji Kenneth | Director | Other | 603 | 0.00 | – |
| Sep 30, 2026 | Samuels Theodore R. II | Director | Other | 583 | 0.00 | – |
| Sep 30, 2026 | Eppinger Frederick H | Director | Other | 864 | 0.00 | – |
| Sep 30, 2026 | Coughlin Christopher J | Director | Other | 583 | 0.00 | – |
| Sep 15, 2026 | Pienkos Theodore J | Corporate Controller & CAO | Other | 1,092 | 69.41 | 75,796 |
| Aug 26, 2026 | Koster Christopher | Secretary & General Counsel | Sell | 56,500 | 66.90 | 3,779,850 |
| Aug 18, 2026 | Koster Christopher | Secretary & General Counsel | Sell | 47,603 | 65.36 | 3,111,332 |
| Jul 28, 2026 | Diaz Paul J | Director | Other | 2,771 | 0.00 | – |
| Jul 17, 2026 | Tyler Lauren M | Director | Other | 3,155 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 3, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.