Karen M. Anderson, Chief People Officer at Centessa Pharmaceuticals plc ($CNTA), made two open market sales of company shares in the last year, totaling $3.15 million. Her most recent sale occurred on March 13, 2026. These CNTA insider sales rank 2,631st among 11,678 individual insiders, compared to an average of $8.59 million per seller across about 6.4 transactions. Anderson made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 26, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Share Option (right to buy) | 41076 | $0.00 | 83,924.0000 | 134,447,836 | 32.86% | 0.03% |
| March 26, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Ordinary Shares | 41076 | $8.01 | 103,161.0000 | 134,447,836 | 66.16% | 0.03% |
| March 26, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 41076 | $30.12 | 62,085.0000 | 134,447,836 | 39.82% | 0.03% |
| March 16, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Share Option (right to buy) | 64768 | $0.00 | 85,043.0000 | 134,447,836 | 43.23% | 0.05% |
| March 16, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Ordinary Shares | 64768 | $4.01 | 126,853.0000 | 134,447,836 | 104.32% | 0.05% |
| March 16, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 64768 | $28.21 | 62,085.0000 | 134,447,836 | 51.06% | 0.05% |
| March 17, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Ordinary Shares | 10043 | $4.01 | 72,128.0000 | 134,447,836 | 16.18% | 0.01% |
| March 17, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 10043 | $28.10 | 62,085.0000 | 134,447,836 | 13.92% | 0.01% |
| March 17, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Share Option (right to buy) | 10043 | $0.00 | 75,000.0000 | 134,447,836 | 11.81% | 0.01% |
| March 13, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Ordinary Shares | 15174 | $3.85 | 182,114.0000 | 134,447,836 | 9.09% | 0.01% |
| March 13, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 107961 | $26.15 | 74,153.0000 | 134,447,836 | 59.28% | 0.08% |
| March 13, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Ordinary Shares | 94224 | $4.01 | 166,940.0000 | 134,447,836 | 129.58% | 0.07% |
| March 13, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 12068 | $27.13 | 62,085.0000 | 134,447,836 | 16.27% | 0.01% |
| March 13, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Share Option (right to buy) | 15174 | $0.00 | 28,336.0000 | 134,447,836 | 34.87% | 0.01% |
| March 13, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Share Option (right to buy) | 94224 | $0.00 | 149,811.0000 | 134,447,836 | 38.61% | 0.07% |
| March 13, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Share Option (right to buy) | 109398 | $0.00 | 134,637.0000 | 134,447,836 | 44.83% | 0.08% |
| March 13, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Ordinary Shares | 109398 | $4.01 | 182,114.0000 | 134,447,836 | 150.45% | 0.08% |
| March 13, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 107961 | $26.15 | 74,153.0000 | 134,447,836 | 59.28% | 0.08% |
| March 13, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 12068 | $27.13 | 62,085.0000 | 134,447,836 | 16.27% | 0.01% |
| Feb. 2, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | A | Ordinary Shares | 29000 | $0.00 | 72,716.0000 | 134,447,836 | 66.34% | 0.02% |
| Feb. 2, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | A | Share Option (right to buy) | 117000 | $0.00 | 117,000.0000 | 134,447,836 | 9999.99% | 0.09% |
| Feb. 1, 2026 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | F | Ordinary Shares | 10606 | $24.57 | 43,716.0000 | 134,447,836 | 19.52% | 0.01% |
| Feb. 7, 2025 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Ordinary Shares | 30526 | $4.01 | 84,848.0000 | 0 | 56.19% | 0.00% |
| Feb. 7, 2025 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 30526 | $19.03 | 54,322.0000 | 0 | 35.98% | 0.00% |
| Feb. 10, 2025 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 429 | $18.99 | 54,322.0000 | 0 | 0.78% | 0.00% |
| Feb. 10, 2025 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Ordinary Shares | 429 | $4.01 | 54,751.0000 | 0 | 0.79% | 0.00% |
| Feb. 7, 2025 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Share Option (right to buy) | 30526 | $0.00 | 244,464.0000 | 0 | 11.10% | 0.00% |
| Feb. 10, 2025 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Share Option (right to buy) | 429 | $0.00 | 244,035.0000 | 0 | 0.18% | 0.00% |
| Feb. 3, 2025 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | A | Share Option (right to buy) | 120000 | $0.00 | 120,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 1, 2025 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | F | Ordinary Shares | 10732 | $16.92 | 60,793.0000 | 0 | 15.00% | 0.00% |
| Feb. 3, 2025 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 6471 | $16.86 | 54,322.0000 | 0 | 10.64% | 0.00% |
| Dec. 13, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Ordinary Shares | 5876 | $3.85 | 77,401.0000 | 0 | 8.22% | 0.00% |
| Dec. 13, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 5876 | $17.01 | 71,525.0000 | 0 | 7.59% | 0.00% |
| Dec. 17, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Ordinary Shares | 10624 | $3.85 | 82,149.0000 | 0 | 14.85% | 0.00% |
| Dec. 17, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 10624 | $17.32 | 71,525.0000 | 0 | 12.93% | 0.00% |
| Dec. 13, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Share Option (right to buy) | 5876 | $0.00 | 54,134.0000 | 0 | 9.79% | 0.00% |
| Dec. 17, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Share Option (right to buy) | 10624 | $0.00 | 43,510.0000 | 0 | 19.63% | 0.00% |
| March 25, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Ordinary Shares | 25010 | $4.01 | 102,695.0000 | 0 | 32.19% | 0.00% |
| March 25, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Ordinary Shares | 19990 | $3.85 | 122,685.0000 | 0 | 19.47% | 0.00% |
| March 25, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 29995 | $11.66 | 92,690.0000 | 0 | 24.45% | 0.00% |
| March 25, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | S | Ordinary Shares | 21165 | $12.21 | 71,525.0000 | 0 | 22.83% | 0.00% |
| March 25, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Share Option (right to buy) | 25010 | $0.00 | 274,990.0000 | 0 | 8.34% | 0.00% |
| March 25, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | M | Share Option (right to buy) | 19990 | $0.00 | 60,010.0000 | 0 | 24.99% | 0.00% |
| Feb. 1, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | A | Share Option (right to buy) | 125000 | $0.00 | 125,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 1, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | F | Ordinary Shares | 7265 | $8.19 | 77,685.0000 | 0 | 8.55% | 0.00% |
| Feb. 1, 2024 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | A | Ordinary Shares | 31250 | $0.00 | 84,950.0000 | 0 | 58.19% | 0.00% |
| Feb. 1, 2023 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | A | Share Option (right to buy) | 80000 | $0.00 | 80,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 1, 2023 | Centessa Pharmaceuticals plc | $CNTA | Anderson Karen M. | Chief People Officer | A | Ordinary Shares | 53700 | $0.00 | 53,700.0000 | 0 | 9999.99% | 0.00% |