MBX

At a glance

MBX Biosciences, Inc. (MBX) is listed on NASDAQ and classified in Biotechnology, part of the Healthcare sector. It is headquartered in Carmel, United States and has 63 employees. The company is worth $2.39B. The share price is 31.7% below its 52-week high of $72.64. 3 of the 38 superinvestors we track held it at the end of Q2 2026. The largest position belongs to Israel Englander (Millennium Management), at $12.48M. In that quarter, 1 of them reduced the position. No open-market insider trades in it were filed over the last 30 days.

Written from the data on this page: SEC filings (13F, Form 4, annual reports) and market prices.

Key metrics

Market cap

$2.39B

P/E

—

Forward P/E

—

P/B

5.8x

Dividend yield

0.00%

Payout

—

EPS

-$2.37

ROE

-33.17%

Profit margin

0.00%

Revenue growth

—

Beta

0.10

52-week high

$72.64

52-week low

$13.22

History

Year by year, from the annual reports; dividends from the payments themselves.

Investors holding this

Major managers that reported this stock in their latest 13F.

• IE
  Israel Englander− Reduced

  Millennium Management · Q2 2026
  $12.48M

  226.15K shares · 0.0% of portfolio
• TS
  Two SigmaHeld

  Two Sigma Investments · Q2 2026
  $6.26M

  113.48K shares · 0.0% of portfolio
• CA
  Cliff AsnessHeld

  AQR Capital Management · Q2 2026
  $1.25M

  22.59K shares · 0.0% of portfolio

Indicators, year by year

The last 2 closed years, each at that year’s closing price and reported numbers.

Median of the years shown; P/E years above 200x are left out.

Others in the same sector

Companies of similar size in Healthcare, for comparison. The columns are the same ones above, in the same order.

About the company