Insider buying last 90 days
No open-market insider purchases were filed for MBX in the last 90 days.
From Form 4 filings, dated to when each was filed.
Oct 12 close
MBX Biosciences closed at $52.02 on 12 October 2026, -2.3% on the day. The price sits between the 50-day ($62.16) and 200-day ($44.23) moving averages, inside a 52-week range of $12.94 to $72.64. The GekkoIndex reads 69.3, in the Accumulation zone, up 7.5 points over five sessions. Gekko Fair Value is $68.90, so the price is 24.5% below it.
The next earnings report is due on 5 November 2026, 24 days away. Over the last 8 reports the company beat the earnings estimate 5 times, with an average move of 8.2% across the report.
8 firms rate the stock: 8 buy, 0 hold and 0 sell, with a consensus target of $94.30. A typical daily move is about 7%, and a typical 20-day move about 15.7%. On the swing-trade checklist, 2 items read supportive and 1 reads as a headwind (earnings risk).
A plain summary of the figures as of the Oct 12, 2026 close.
MBX Biosciences scores 2 supportive, 1 mixed and 1 headwind across the 4 checklist items with data.
Six things swing traders check before a 20-day hold, read from the latest data.
2 supportive1 mixed1 headwind
Averages disagree
Close $52.02 sits between the 50-day ($62.16) and 200-day ($44.23) averages, or the averages disagree.
See the chart69.3, Accumulation
Reading 69.3 is in the Accumulation zone.
See the GekkoIndex24.5% below
Price is 24.5% below Gekko Fair Value (more than 5% below).
See fair valueNo data
No insider, Congress or unusual options activity in the window.
See smart moneyReports in 24 days
Reports on Nov 5, 2026, 24 days away — inside a typical 20-trading-day hold.
See earningsNo data
Not enough years of history for a seasonal read.
A description of current data, not a recommendation. How this page works
MBX Biosciences closed at $52.02 on Oct 12, 2026, +228.0% over the past year, inside a 52-week range of $12.94 to $72.64.
Use the left and right arrow keys to read daily values.
Put MBX on a Gekko watchlist and see its GekkoIndex, Gekko Fair Value and smart money signals update on the chart as they change.
MBX Biosciences works on peptide-based drugs aimed at hormone and metabolic disorders, and has not yet brought a product to market. Its furthest-along candidate, MBX 2109, is a prodrug form of parathyroid hormone being tested in Phase 2 trials as a long-acting replacement therapy for people with chronic hypoparathyroidism. The company is also known for pursuing treatments that target metabolic hormone pathways more broadly.
Beyond its lead program, the company is testing MBX 1416, a long-acting compound that blocks GLP-1 receptors, in Phase 1 trials meant to address low blood sugar that can persist after bariatric surgery. A third candidate, MBX 4291, is still in the studies required before human trials can begin; it is designed to act on both GLP-1 and GIP receptors together and is intended for obesity and related conditions. Its pipeline therefore spans early to mid-stage clinical work rather than any approved or marketed treatment.
MBX Biosciences was founded in 2018 and is based in Carmel, Indiana. Its shares are listed on the NASDAQ under the ticker MBX.
MBX Biosciences’s GekkoIndex — Gekko’s 0 to 100 smart money score — reads 69.3, in the Accumulation zone, up 7.5 points over five sessions.
Up 7.5 points over five sessions.
Reading for Oct 12, 2026
| Zone | Readings | 5 days | 20 days | ||
|---|---|---|---|---|---|
| Buying | 35 | +6.5% | +19.6% | ||
| Accumulation (current zone) | 161 | +3.6% | +7.4% | ||
| Neutral | 284 | +0.3% | +5.4% | ||
| Distribution | 34 | +3.6% | +13.8% | ||
| Selling | 1 | Too few readings yet | |||
Average MBX share-price change over the trading days after each daily reading in its GekkoIndex history. Across every stock Gekko tracks, Accumulation readings averaged +2.2% over 20 days. Past behaviour doesn’t guarantee future results.
Accumulation zone: Institutional interest building. About the five zones →
MBX Biosciences trades 24.5% below Gekko Fair Value of $68.90, so the shares are undervalued on Gekko’s estimate.
Gekko’s own estimate of what MBX Biosciences shares are worth, recalculated every trading day.
$68.90
Gekko Fair Value, Oct 10, 2026
24.5% Undervalued
At the end of Aug 2026 the price was 22.1% below the estimate.
No open-market insider purchases were filed for MBX Biosciences, and no Congress trades were disclosed, in the last 90 days.
Plus buybacks, unusual options and fund positions, each dated to when it became public.
No open-market insider purchases were filed for MBX in the last 90 days.
From Form 4 filings, dated to when each was filed.
No trades in MBX were disclosed by members of Congress in the last 90 days.
From congressional disclosures, which report amounts as ranges.
1of the funds Gekko tracks holds MBX.
MBX Biosciences reports on Nov 5, 2026 (24 days away), and beat the EPS estimate in 5 of its last 8 reports.
Nov 5, 2026
24 days away
| Reported | EPS | Revenue | Move |
|---|---|---|---|
| Aug 6, 2026 | −$0.78 est −$0.63 | — | +0.5% |
| May 7, 2026 | −$0.51 est −$0.58 | — | +27.6% |
| Mar 12, 2026 | −$0.49 est −$0.60 | — | −3.2% |
| Nov 6, 2025 | −$0.63 est −$0.73 | — | +13.4% |
| Aug 7, 2025 | −$0.58 est −$0.77 | — | +4.2% |
| May 12, 2025 | −$0.71 est −$0.81 | — | −7.6% |
| Nov 7, 2024 | −$2.78 est −$2.72 | — | +0.7% |
| Aug 23, 2024 | −$11.47 est $0.00 | — | — |
“Move” is the close of the first session after the report compared with the close of the last session before it, so it reads the same whether the company reported before the open or after the close.
Analysts’ average 12-month price target for MBX Biosciences is $94.30, +81.3% from the last close, from 8 firms rating the stock in the last 90 days.
Each firm’s latest rating in the last 90 days: 8 firms.
| Date | Firm | Target | vs price |
|---|---|---|---|
| Oct 12 | Guggenheim | $150 | +188.4% |
| Oct 12 | Stifel Nicolaus | $84 | +61.5% |
| Oct 2 | Guggenheim | $150 | +188.4% |
| Aug 21 | J.P. Morgan | $88 | +69.2% |
| Aug 11 | Stifel Nicolaus | $70 | +34.6% |
Gekko doesn’t publish price predictions. These are analyst targets and historical base rates, which don’t guarantee future results.
MBX Biosciences’s market cap is $2.48B and revenue of $0 over the last twelve months.
Coverage of MBX Biosciences this week reads positive: 3 positive, 0 neutral and 0 negative headlines.
MBX Biosciences’s 6 largest industry peers by market value, with today’s move, GekkoIndex zone and gap to Gekko Fair Value.
| Stock | GekkoIndex zone | vs Fair Value |
|---|---|---|
| AMGNAmgen | Neutral | 25.5% below |
| GILDGilead Sciences | Neutral | 4.2% above |
| MRNAModerna | Neutral | 62.7% above |
| NTRANatera | Neutral | 10.3% above |
| IQVIQVIA | Neutral | 8.4% above |
| UTHRUnited Therapeutics | Neutral | 14.4% below |
A peer links to its own page where one exists.
MBX Biosciences’s market cap is $2.48B at the Oct 12, 2026 close of $52.02, with 48.16M shares outstanding.
The consensus analyst 12-month price target for MBX Biosciences is $94.30, +81.3% from the last close. Of the 8 firms that rated the stock in the last 90 days, 8 rate it a buy, 0 a hold and 0 a sell. Gekko doesn’t publish price predictions of its own.
On Gekko’s estimate MBX Biosciences is undervalued: the Oct 12, 2026 close of $52.02 is 24.5% below Gekko Fair Value of $68.90. Gekko Fair Value is recalculated every trading day, and a gap inside 5% either way counts as about fair value.
MBX Biosciences is expected to report on Nov 5, 2026 (24 days away). Analysts expect earnings of −$0.83 per share. MBX Biosciences beat the earnings estimate in 5 of its last 8 reports, moving 8.2% on average across the report.
MBX Biosciences’s 52-week high is $72.64 and its 52-week low is $12.94; it closed at $52.02 on Oct 12, 2026, +228.0% over the past year.
Gekko describes the data; it does not make buy or sell recommendations. On the swing-trade checklist, 2 of the 4 items with data read as supportive (gekkoindex and fair value), 1 as mixed (trend) and 1 as a headwind (earnings risk). The checklist is a description of current data, not a recommendation.
During US trading hours the price at the top of the page is a delayed quote, refreshed every 15 minutes; everything else is rebuilt after each US market close. The GekkoIndex, Gekko Fair Value and the checklist are Gekko’s own, and the Gekko Brief is written by AI from this page’s data and checked against it before it is published. How Gekko’s data works →
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