Centene's top three insider shareholders as of September 09, 2026 are Michael F Neidorff (Chairman Ceo, 6.52Mn shares), Michael F Neidorff (Chairman Ceo, 6.52Mn shares), Michael F Neidorff (Chairman Ceo, 6.52Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Michael F Neidorff | Chairman Ceo | 6,517,610 | 0 | 6,517,610 | 50.4% | 17 Dec, 2021 |
| 2 | Sarah London | Chief Executive Officer | 1,188,831 | 0 | 1,188,831 | 9.2% | 17 Mar, 2026 |
| 3 | Andrew Lynn Asher | Chief Financial Officer | 747,989 | 0 | 747,989 | 5.8% | 17 Mar, 2026 |
| 4 | Robert K Ditmore | Director | 665,922 | 0 | 665,922 | 5.2% | 04 Oct, 2021 |
| 5 | Brent D Layton | President Coo | 562,853 | 0 | 562,853 | 4.4% | 13 Dec, 2022 |
| 6 | Frederick H Eppinger | Director | 369,538 | 0 | 369,538 | 2.9% | 01 Jul, 2026 |
| 7 | Brandy Burkhalter | Evp | 350,475 | 0 | 350,475 | 2.7% | 28 Mar, 2022 |
| 8 | Kenneth J Fasola | President | 286,066 | 0 | 286,066 | 2.2% | 05 Jul, 2024 |
| 9 | Christopher Koster | Secretary General Counsel | 248,854 | 0 | 248,854 | 1.9% | 27 Aug, 2026 |
| 10 | John R Roberts | Director | 194,891 | 29,467 | 224,358 | 1.7% | 04 Jan, 2022 |
| 11 | David L Steward | Director | 219,294 | 0 | 219,294 | 1.7% | 04 Oct, 2021 |
| 12 | Susan Raye Smith | Chief Operating Officer | 212,237 | 0 | 212,237 | 1.6% | 15 Jun, 2026 |
| 13 | James E Murray | Evp, Chief Operating Officer | 202,853 | 0 | 202,853 | 1.6% | 17 Mar, 2023 |
| 14 | Kenneth A Burdick | Evp, Markets Products | 197,086 | 0 | 197,086 | 1.5% | 11 Jun, 2026 |
| 15 | Mark J Brooks | Evp, Chief Information Officer | 153,755 | 0 | 153,755 | 1.2% | 28 Mar, 2022 |
| 16 | David P Thomas | Ceo, Markets And Medicaid | 132,941 | 0 | 132,941 | 1.0% | 19 Dec, 2023 |
| 17 | Tanya M Mcnally | Chief People Officer | 127,258 | 0 | 127,258 | 1.0% | 16 Apr, 2026 |
| 18 | Shannon Bagley | Evp, Chief Admin. Officer | 116,705 | 0 | 116,705 | 0.9% | 18 Aug, 2022 |
| 19 | Katie Casso | Corporate Controller Cao | 109,776 | 0 | 109,776 | 0.8% | 17 Mar, 2026 |
| 20 | Orlando Ayala | Director | 77,202 | 0 | 77,202 | 0.6% | 28 Apr, 2022 |
| 21 | Colin A Toney | Evp, Mergers Acquisitions | 52,123 | 0 | 52,123 | 0.4% | 19 Jul, 2022 |
| 22 | H James Dallas | Director | 47,874 | 0 | 47,874 | 0.4% | 13 May, 2026 |
| 23 | Jessica L. Blume | Director | 32,357 | 0 | 32,357 | 0.3% | 13 May, 2026 |
| 24 | Richard A Gephardt | Director | 22,560 | 0 | 22,560 | 0.2% | 12 Jul, 2022 |
| 25 | Christopher J Coughlin | Director | 18,711 | 0 | 18,711 | 0.1% | 01 Jul, 2026 |
| 26 | Monte E Ford | Director | 14,827 | 0 | 14,827 | 0.1% | 13 May, 2026 |
| 27 | Lori Jean Robinson | Director | 14,371 | 0 | 14,371 | 0.1% | 15 May, 2024 |
| 28 | Kenneth Tanji | Director | 12,490 | 0 | 12,490 | 0.1% | 01 Jul, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 26 Aug, 2026 | Christopher Koster | Secretary General Counsel | Disposed S | 56,500 | $66.90 | $3.78Mn | 248,854 | Direct |
| 18 Aug, 2026 | Christopher Koster | Secretary General Counsel | Disposed S | 47,603 | $65.36 | $3.11Mn | 305,354 | Direct |
| 28 Jul, 2026 | Paul J Diaz | Director | Acquired A | 2,771 | $0.00 | $0 | 2,771 | Direct |
| 28 Jul, 2026 | Paul J Diaz | Director | Acquired A | 2,771 | $0.00 | $0 | 2,771 | Direct |
| 17 Jul, 2026 | Lauren M Tyler | Director | Acquired A | 3,155 | $0.00 | $0 | 3,216 | Direct |
| 17 Jul, 2026 | Lauren M Tyler | Director | Acquired A | 3,155 | $0.00 | $0 | 3,216 | Direct |
| 30 Jun, 2026 | Christopher J Coughlin | Director | Acquired A | 562 | $0.00 | $0 | 18,711 | Direct |
| 30 Jun, 2026 | Frederick H Eppinger | Director | Acquired A | 833 | $0.00 | $0 | 369,538 | Direct |
| 30 Jun, 2026 | Theodore R. Ii Samuels | Director | Acquired A | 465 | $0.00 | $0 | 25,213 | Direct |
| 30 Jun, 2026 | Lauren M Tyler | Director | Acquired A | 61 | $0.00 | $0 | 61 | Direct |
| 30 Jun, 2026 | Lauren M Tyler | Director | Acquired A | 61 | $0.00 | $0 | 61 | Direct |
| 30 Jun, 2026 | Kenneth Tanji | Director | Acquired A | 581 | $0.00 | $0 | 12,490 | Direct |
| 30 Jun, 2026 | Christopher J Coughlin | Director | Acquired A | 562 | $0.00 | $0 | 18,711 | Direct |
| 15 Jun, 2026 | Susan Raye Smith | Chief Operating Officer | Disposed F | 483 | $65.19 | $31.49K | 212,237 | Direct |
| 15 Jun, 2026 | Susan Raye Smith | Chief Operating Officer | Disposed F | 483 | $65.19 | $31.49K | 212,237 | Direct |
| 10 Jun, 2026 | Kenneth A Burdick | Director | Disposed S | 80,000 | $64.55 | $5.16Mn | 197,086 | Direct |
| 29 May, 2026 | Michael A Carson | Group President, Medicarespec | Disposed I | 604 | $59.60 | $36.00K | 0 | Direct |
| 29 May, 2026 | Michael A Carson | Group President, Medicarespec | Disposed I | 604 | $59.60 | $36.00K | 0 | Direct |
| 22 May, 2026 | Michael A Carson | Group President, Medicarespec | Acquired A | 48 | $57.77 | $2.77K | 604 | Direct |
| 22 May, 2026 | Michael A Carson | Group President, Medicarespec | Acquired A | 48 | $57.77 | $2.77K | 604 | Direct |