The WACC of Mersana Therapeutics Inc (MRSN) is 8.1%.
| Range | Selected | |
| Cost of equity | 6.60% - 10.70% | 8.65% |
| Tax rate | 26.20% - 27.00% | 26.60% |
| Cost of debt | 7.00% - 11.20% | 9.10% |
| WACC | 6.2% - 10.0% | 8.1% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.6 | 1.04 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 6.60% | 10.70% |
| Tax rate | 26.20% | 27.00% |
| Debt/Equity ratio | 0.41 | 0.41 |
| Cost of debt | 7.00% | 11.20% |
| After-tax WACC | 6.2% | 10.0% |
| Selected WACC | 8.1% | |