MBX · MBX Biosciences, Inc.

NASDAQ NMS - GLOBAL MARKET - BOATS Real Time Price • USD

MBX Biosciences Inc (MBX)

NASDAQ NMS - GLOBAL MARKET Pharmaceuticals
Move probability → Options chain →
$53.90 +0.48 (+0.90%)
● At close: October 21 at 4:00:00 PM EDT
DAY'S RANGE $53.90
$53.45 $55.73
52-WEEK RANGE $53.90
$14.26 $72.64

What's happening

Deterministic template sentences filled in from the same sourced figures shown elsewhere on this page -- not an AI-written summary, no live model call.

Key Statistics

Market Cap$2.60B
P/E (TTM1)—
EPS2 (TTM)$-2.41
Div Yield—
Beta31.91
Volume28,450
Open55.30
Prev Close53.42
Bid / Ask44.58 / 78.21
Next Earnings 2026-11-05

Analyst Recommendations

Strong buy 5 Buy 9 Hold 1 Sell 0 Strong sell 0

Aggregate ratings for 2026-10-01 (15 analysts polled by Finnhub) — consensus count.

Performance Overview (Trailing returns vs S&P 500 benchmark)

YTD RETURN
MBX +70.99%
vs S&P 500 +57.62%
1-YEAR RETURN
MBX +252.25%
vs S&P 500 +237.09%
6-MONTH RETURN
MBX +59.70%
3-MONTH RETURN
MBX -7.50%

Valuation Measures & Ratios

Enterprise Value4$2.54B
Forward P/E5—
PEG Ratio6-5.05
Price / Sales (TTM1)—
Price / Book76.42
EV4 / Revenue—
EV4 / EBITDA—
Profit Margin—
Operating Margin—
Return on Equity (ROE8)-26.01%
Return on Assets (ROA9)-24.92%
Avg Volume (3M)651,520
Quarterly history (5 periods)
Measure Jun '26Mar '26Sep '25Jun '25Mar '25
Market cap $2.62B $1.41B $600.7M $3.07B $1.98B
P/E -25.82 -15.89 -7.23 -39.66 -28.15
Price/Book 6.41 3.21 1.55 13.98 8.39
ROE -24.82% -20.20% -21.43% -35.25% -29.83%
ROA -23.32% -19.53% -20.76% -33.38% -28.55%

Trailing-twelve-month ratios computed from SEC EDGAR quarterly figures and historical daily close prices (Alpaca). Diluted shares are derived from Net income ÷ EPS (diluted) for each quarter, not separately reported. Forward P/E/PEG unavailable (no free data source).

Glossary — what these abbreviations mean
1. TTM
Trailing twelve months — the sum of the last four reported quarters, not a calendar year or the single latest quarter.
2. EPS
Earnings per share — net income divided by diluted shares outstanding.
3. Beta
A stock's historical volatility relative to the overall market. Above 1 means it has moved more than the market; below 1, less.
4. EV (Enterprise Value)
Market cap plus total debt minus cash — roughly what it would cost to buy the whole company, debt included.
5. Forward P/E
Price divided by analysts' estimated earnings for the next 12 months, instead of trailing actual earnings.
6. PEG Ratio
P/E divided by expected earnings growth rate. A lower number can indicate a stock is cheap relative to how fast it's expected to grow.
7. Price / Book
Share price divided by book value (assets minus liabilities) per share.
8. ROE
Return on equity — net income divided by shareholders' equity, a measure of how efficiently a company turns equity into profit.
9. ROA
Return on assets — net income divided by total assets, a measure of how efficiently a company turns assets into profit.
10. MRQ
Most recent quarter — the single latest reported period, as opposed to TTM. The Financials section's "Quarterly" view below shows MRQ-style figures.
11. YoY
Year over year — percent change versus the same period one year earlier, used for growth figures like those on Compare cards and the Screener.

Short Interest

Shares Short4,466,280
Change from Prior Settlement+8.15%
% of Float—
Days to Cover (Short Ratio)6.84

Source: FINRA Rule 4560 consolidated short interest, settlement date 2026-09-30. Reported bi-monthly with a reporting lag — not real-time.

Quotes and the 1-day extended-hours chart: Yahoo Finance. Longer historical charts: Alpaca (IEX feed) — real-time but IEX-only volume (~2.5% of consolidated market volume). Fundamentals + earnings: Finnhub.

Price history

Events

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Technical signal summary

Calculating from the latest year of daily price history…

Calculating…
Show Technical Analysis Breakdown ▾ 10 Indicators

Not investment advice — read several signals together.

Indicators None active

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Starter sets
Trend
Oscillators
Volume/volatility
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History limited by data provider; markers are heuristics, not signals.

Peer and sector context

No reviewed peer group is available for this symbol.

Balanced evidence

A deterministic summary of sourced facts—not an AI verdict.

Potential strengths

Potential concerns

  • Latest SEC filing is Form 8-K, filed 2026-08-27; review it for current changes and risks. SEC EDGAR ↗

Rule-based facts only; absence from either side is not evidence, and this is not a recommendation.

Financials

Income statement

Line item Jun '26Mar '26Sep '25Jun '25Mar '25Sep '24Jun '24Mar '24
Operating income -$40.9M -$27.3M -$23.9M -$21.8M -$26.5M -$19.6M -$16.7M -$13.3M
Net income -$37.1M -$23.5M -$21.6M -$19.4M -$23.9M -$18.1M -$15.9M -$12.3M
EPS (diluted) $-0.78 $-0.50 $-0.63 $-0.58 $-0.71 $-2.78 $-12.62 $-10.26
EPS (basic) $-0.78 $-0.50 $-0.63 $-0.58 $-0.71 $-2.78 $-12.62 $-10.26

Balance sheet

Line item Jun '26Mar '26Dec '25Sep '25Jun '25Mar '25Dec '24Sep '24
Total assets $435.9M $452.7M $385.1M $400.1M $231.5M $245.9M $268.5M $282.4M
Total liabilities $26.4M $14.9M $15.9M $12.5M $12.3M $10.5M $11.1M $11.0M
Stockholders' equity $409.5M $437.8M $369.2M $387.5M $219.2M $235.4M $257.4M $271.4M
Total current assets $427.9M $448.5M $381.5M $397.5M $229.2M $244.3M $267.3M $281.2M
Total current liabilities $23.7M $14.6M $15.5M $12.1M $11.8M $10.5M $11.1M $10.9M
Cash & equivalents $54.1M $45.2M $75.3M $223.1M $39.8M $29.9M $49.4M $132.9M

Cash flow

Line item Jun '26Mar '26Dec '25Sep '25Jun '25Mar '25Dec '24Sep '24
Operating cash flow -$22.6M -$20.2M -$18.3M -$21.5M -$17.4M -$22.7M -$16.0M -$14.7M
Investing cash flow $29.2M -$97.1M -$130.0M $17.1M $26.0M $3.2M -$67.3M -$100.8M
Financing cash flow $2.3M $87.4M $438.0K $187.8M $1.3M $4.0K -$132.0K $235.8M
Free cash flow -$23.5M -$20.6M -$19.1M -$21.9M -$18.1M -$22.7M -$16.1M -$14.7M
Capital expenditures $901.0K $437.0K $793.0K $399.0K $707.0K $30.0K $92.0K $57.0K
Share-based compensation $6.1M $5.5M $2.7M $2.2M $1.9M $1.8M $1.5M $1.2M

Source: SEC EDGAR XBRL filings (10-Q/10-K), as originally tagged by the company. Quarterly cash flow is reconstructed by de-cumulating fiscal-year-to-date figures (how cash flow is tagged in 10-Qs); other quarterly lines are reported directly.

Institutional holders

SEC Form 13F filers holding MBX as of the latest reported quarter. 13F only covers investment managers with $100M+ in assets — this is not a complete ownership picture, and does not include insiders (see Recent SEC filings below) or non-13F-eligible holders.

Institutional ownership is not available for this symbol right now.

Insider activity

Directors, officers, and 10%+ owners' reported transactions from SEC Form 4. A filing reports a transaction; it does not by itself explain why it happened.

Source: SEC EDGAR Form 4 filings · checked 25 most recent filings · covers 2025-10-17 to 2026-08-04

Recent transactions

  • Insiders have net sold 71,211 shares over the last 182 days, across 0 purchases and 5 sales.
  • Most recent: Azoulay Salomon (Chief Medical Officer) — Open market sale of 370 shares on 2026-08-04.

Deterministic template sentences filled in from the SEC Form 4 figures in the tables below -- not an AI-written summary, no live model call.

Insider purchases & sales, last 6 months

Purchases (open market)0 sh(0 txns)
Sales (open market)71,211 sh(5 txns)
Net Shares-71,211

Counts only open-market purchases (code P) and sales (code S) — grants, option exercises, tax withholding, and gifts are excluded since they aren't a market buy/sell decision.

Insider roster

NameTitleMost Recent TransactionDateShares
Azoulay SalomonChief Medical OfficerOpen market sale2026-08-04370
Smither John WChief Financial OfficerGrant / award2026-08-0328,000
Hoerter Steven L.President and CEOGrant / award2026-08-0371,000
Hawryluk P. KentPresident & CEOOpen market sale2026-05-06607
Bartram RichardChief Financial OfficerGrant / award2026-02-0215,000

Recent transactions

DateInsiderTitleTransactionSharesPrice
2026-08-04Azoulay SalomonChief Medical OfficerOpen market sale 370$65.77
2026-08-03Smither John WChief Financial OfficerGrant / award 28,000$0.00
2026-08-03Hoerter Steven L.President and CEOGrant / award 71,000$0.00
2026-05-08Azoulay SalomonChief Medical OfficerOption exercise 55,000$10.46
2026-05-08Azoulay SalomonChief Medical OfficerOpen market sale 55,000$38.38
2026-05-08Azoulay SalomonChief Medical OfficerOption exercise 15,003$16.00
2026-05-08Azoulay SalomonChief Medical OfficerOpen market sale 15,003$38.30
2026-05-06Azoulay SalomonChief Medical OfficerOpen market sale 231$29.54
2026-05-06Hawryluk P. KentPresident & CEOOpen market sale 607$29.54
2026-05-01Hoerter Steven L.Reporting personGrant / award 11,938$0.00
2026-03-13Hawryluk P. KentPresident & CEOOpen market purchase 18,500$28.41
2026-02-26Hawryluk P. KentPresident & CEOOption exercise 28,768$16.00
2026-02-02Azoulay SalomonChief Medical OfficerGrant / award 15,000$0.00
2026-02-02Bartram RichardChief Financial OfficerGrant / award 15,000$0.00
2026-02-02Hawryluk P. KentPresident & CEOGrant / award 35,250$0.00
2025-10-24Hawryluk P. KentPresident & CEOOption exercise 182,859$3.25
2025-10-20Hawryluk P. KentPresident & CEOOpen market purchase 20,000$13.64
2025-10-17Hoerter Steven L.Reporting personOpen market purchase 20,000$13.25

Recent SEC filings

Official company reports and insider transaction filings. Form 4 reports a transaction; it does not by itself explain why it happened.

Source: SEC EDGAR submissions · updated 2026-10-22 06:46 UTC

FiledFormReport periodOfficial filing
2026-08-278-K2026-08-27 View on SEC.gov →
2026-08-0610-Q2026-06-30 View on SEC.gov →
2026-08-068-K2026-08-06 View on SEC.gov →
2026-08-0542026-08-04 View on SEC.gov →
2026-08-0442026-08-03 View on SEC.gov →
2026-08-0442026-08-03 View on SEC.gov →
2026-07-138-K2026-07-09 View on SEC.gov →
2026-06-128-K2026-06-12 View on SEC.gov →
2026-06-0542026-06-04 View on SEC.gov →
2026-06-0542026-06-04 View on SEC.gov →
2026-06-0542026-06-04 View on SEC.gov →
2026-06-0542026-06-04 View on SEC.gov →

Headlines about MBX (MBX Biosciences, Inc.). Links open the publisher — we don’t host full articles.

SEC filings ↓

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