MBX Biosciences (MBX)
What the price implies
A reverse DCF: instead of guessing a fair value, it asks what growth today's price already assumes. How it works.
Fundamental grade
Five factors scored 1 to 9 from MBX's latest numbers, weighted into one grade. It describes the business, not whether the stock is a buy.
Key numbers
Results from SEC filings
Fiscal years, from MBX Biosciences's 10-K filings. Ten years of the full income statement, balance sheet and cash flow.
| Fiscal year | 2023 | 2024 | 2025 |
|---|---|---|---|
| Revenue | — | — | — |
| Net income | -$33M | -$62M | -$87M |
| Free cash flow | -$32M | -$56M | -$82M |
| EPS (diluted) | -$31.96 | -$5.82 | -$2.38 |
| Operating margin | — | — | — |
Superinvestors who own MBX
From each investor's latest 13F filing (what a 13F shows). 1 of the investors we track hold it.
| Investor | Last quarter | Value | % of portfolio | Quarter |
|---|---|---|---|---|
| Cliff Asness AQR Capital Management |
Trimmed | $1M | 0.0% | Q2 2026 |
Insider buying
Open-market purchases by MBX Biosciences's executives and directors in the last 12 months, from SEC Form 4 filings. What insider buying tells you. Every purchase since records began.
| Date | Insider | Shares | Price | Value |
|---|---|---|---|---|
| Mar 13, 2026 | P. Kent Hawryluk |
18,500 | $28.41 | $525,585 |
| Oct 20, 2025 | P. Kent Hawryluk |
20,000 | $13.64 | $272,800 |
| Oct 17, 2025 | Steven L Hoerter |
20,000 | $13.25 | $265,000 |
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In the full deep dive
Questions
Are MBX Biosciences insiders buying the stock?
3 open-market insider purchases of MBX in the last 12 months, from SEC Form 4 filings.
Which superinvestors own MBX Biosciences?
1 of the superinvestors Investingly tracks hold MBX in their latest 13F, including Cliff Asness.
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Prices and ratios as of Oct 11, 2026; statements from SEC filings. Information only, not investment advice. Superinvestor holdings come from 13F filings, which are filed up to 45 days after each quarter ends.