What is Septerna, Inc. worth?
With the base-case assumptions below, a discounted cash flow model on Septerna, Inc.'s reported free cash flow gives $85.65 per share. The share price was $52.34 on November 10, 2026, 39% below that value.
Inputs from the filings
Three sets of assumptions
| Case | Growth yrs 1-5 | Discount rate | Value per share | Value vs price |
|---|---|---|---|---|
| Bear | 10.0% | 10.0% | $53.52 | +2% |
| Base | 15.0% | 9.0% | $85.65 | +64% |
| Bull | 20.0% | 8.0% | $145.47 | +178% |
Sensitivity: base case value per share
| 1.5% | 2.0% | 2.5% | 3.0% | 3.5% | |
|---|---|---|---|---|---|
| 7.0% | $109.97 | $117.55 | $126.82 | $138.41 | $153.31 |
| 8.0% | $91.70 | $96.62 | $102.43 | $109.40 | $117.93 |
| 9.0% | $78.40 | $81.77 | $85.65 | $90.17 | $95.52 |
| 10.0% | $68.32 | $70.71 | $73.42 | $76.52 | $80.10 |
| 11.0% | $60.44 | $62.19 | $64.15 | $66.35 | $68.85 |
Where the presets come from
Base: years 1 to 5 grow at Septerna, Inc.'s revenue growth rate over the last 1 fiscal years (30,331.1% a year), held between -5% and 15%. Years 6 to 10 grow halfway between that and the long-run rate of 2.5%. Future cash is discounted at 9% a year.
Bear: 5 points less growth, 2% long-run growth, 10% discount rate. Bull: 5 points more growth (at most 25%), 3% long-run growth, 8% discount rate.
Value per share = (present value of 10 years of free cash flow + present value of everything after + cash - debt) / diluted shares.
This is a model run on assumptions, not a recommendation or a price target. Small changes in the discount rate or growth move the result a lot, as the table above shows. Change them yourself in the calculator.
Adjust the assumptions
Move the sliders for growth, long-run growth and discount rate, or switch to average free cash flow, and see the value per share change.
Adjust the assumptions