KOSTER CHRISTOPHER has filed 13 insider transactions across 1 company since February 2024.
Most recent transaction: a tax payment of 9087 shares of CENTENE CORP ($CNC) on March 15, 2026.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 15, 2026 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | Secretary & General Counsel | F | Common Stock | 9087 | $34.45 | 352,935.6170 | 623,463,000 | 2.51% | 0.00% |
| Jan. 26, 2026 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | Secretary & General Counsel | A | Common Stock | 126925 | $0.00 | 361,922.6170 | 623,463,000 | 54.01% | 0.02% |
| Jan. 26, 2026 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | Secretary & General Counsel | A | Common Stock | 126925 | $0.00 | 388,961.6170 | 623,463,000 | 48.44% | 0.02% |
| March 15, 2025 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | Secretary & General Counsel | F | Common Stock | 4039 | $58.19 | 175,882.0840 | 620,195,000 | 2.24% | 0.00% |
| March 15, 2025 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | Secretary & General Counsel | A | Common Stock | 85925 | $0.00 | 261,807.0840 | 620,195,000 | 48.85% | 0.01% |
| Feb. 4, 2025 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | Secretary & General Counsel | D | Common Stock | 10661 | $0.00 | 183,729.6440 | 620,195,000 | 5.48% | 0.00% |
| Feb. 4, 2025 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | Secretary & General Counsel | F | Common Stock | 3852 | $64.82 | 179,921.0840 | 620,195,000 | 2.10% | 0.00% |
| Dec. 15, 2024 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | Secretary & General Counsel | F | Common Stock | 2518 | $59.42 | 194,390.6440 | 619,945,000 | 1.28% | 0.00% |
| June 23, 2024 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | Secretary & General Counsel | F | Common Stock | 1987 | $67.93 | 196,833.9950 | 619,173,000 | 1.00% | 0.00% |
| March 15, 2024 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | Secretary & General Counsel | A | Common Stock | 37147 | $0.00 | 198,787.4630 | 615,291,000 | 22.98% | 0.01% |
| March 15, 2024 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | Secretary & General Counsel | F | Common Stock | 2135 | $76.05 | 161,640.4630 | 615,291,000 | 1.30% | 0.00% |
| Feb. 6, 2024 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | EVP, Secr. & General Counsel | F | Common Stock | 13449 | $74.07 | 163,775.4630 | 615,291,000 | 7.59% | 0.00% |
| Feb. 6, 2024 | CENTENE CORP | $CNC | KOSTER CHRISTOPHER | EVP, Secr. & General Counsel | A | Common Stock | 6336 | $0.00 | 177,189.0020 | 615,291,000 | 3.71% | 0.00% |