The WACC of Mersana Therapeutics Inc (MRSN) is 7.8%.
| Range | Selected | |
| Cost of equity | 6.30% - 9.70% | 8.00% |
| Tax rate | 26.20% - 27.00% | 26.60% |
| Cost of debt | 7.00% - 8.90% | 7.95% |
| WACC | 6.2% - 9.4% | 7.8% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.53 | 0.87 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.30% | 9.70% |
| Tax rate | 26.20% | 27.00% |
| Debt/Equity ratio | 0.1 | 0.1 |
| Cost of debt | 7.00% | 8.90% |
| After-tax WACC | 6.2% | 9.4% |
| Selected WACC | 7.8% | |