As of 2025-10-27, the EV/EBITDA ratio of Altimmune Inc (ALT) is -3.70. EV/EBITDA ratio is calculated by dividing the enterprise value by the TTM EBITDA. Altimmune's latest enterprise value is 348.63 mil USD. Altimmune's TTM EBITDA according to its financial statements is -94.18 mil USD. Dividing these 2 quantities gives us the above Altimmune EV/EBITDA ratio.
Note: valuation result may not be accurate due to the company's negative EBITDA.
| Range | Selected | |
| Trailing P/E multiples | 10.1x - 13.8x | 13.3x |
| Forward P/E multiples | 13.3x - 31.9x | 15.3x |
| Fair Price | (14.21) - (14.70) | (15.26) |
| Upside | -459.8% - -472.3% | -486.3% |
| Date | EV/EBITDA |