KOSTER CHRISTOPHER (CIK 1802501) reported 6 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-19). Recent activity: Sell CNC (47,603 shares), Sell CNC (9,087 shares), Buy CNC (126,925 shares), Buy CNC (126,925 shares), Sell CNC (4,039 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-19 | CENTENE CORP (CNC) | Secretary & General Counsel | Sell | 47,603 | $3.1M |
| 2026-03-17 | CENTENE CORP (CNC) | Secretary & General Counsel | Sell | 9,087 | $313,047 |
| 2026-02-06 | CENTENE CORP (CNC) | Secretary & General Counsel | Buy | 126,925 | $0 |
| 2026-01-28 | CENTENE CORP (CNC) | Secretary & General Counsel | Buy | 126,925 | $0 |
| 2025-03-18 | CENTENE CORP (CNC) | Secretary & General Counsel | Sell | 4,039 | $235,029 |
| 2025-03-18 | CENTENE CORP (CNC) | Secretary & General Counsel | Buy | 85,925 | $0 |
Source: SEC Form 4 filings · as of 2026-08-19