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Prime Medicine, Inc. (PRME) fair value: what the stock is really worth

As of Oct 2, 2026: fair value of Prime Medicine, Inc. $0.45, price $2.98, upside -84.9%, quality 28 out of 100. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.

  1. Fair value above price? No
  2. Good quality? No
  3. Add to watchlist

Healthcare · US · ISIN US74168J1016

PM Prime Medicine, Inc. logo Thin data Sep 24, 2026

Prime Medicine, Inc.

PRME · US

Weakest SetupStrongly overvalued and low quality.

!Fair value $0.4500 · Strongly overvalued (−84.9%)
!Quality 28/100
!Weak Growth (revenue 5y −2.3 %/yr)
!negative free cash flow
!Trails peers (1/6)
!Narrow moat 7/100
!Evidence only low, so the estimate is less certain
!Weak on future: 18 out of 100
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Price vs Fair Value

$21.12 $1.15 Fair Value $0.4500 Oct 2022 Oct 2026

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Sep 24, 2026.

How to read this chart

47‑month range $1.15 – $21.12 · fair‑value band $0.3300 – $0.6700 · the $2.98 price screens above the $0.4500 fair value. Dashed = 300-day average. As of Sep 24, 2026.

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Company profile

Prime Medicine, Inc., a biotechnology company, engages in delivering genetic medicines to address the spectrum of diseases by deploying gene editing technology in the United States.

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Prime Medicine, Inc., a biotechnology company, engages in delivering genetic medicines to address the spectrum of diseases by deploying gene editing technology in the United States. Its lead therapeutic product candidate is PM359 for Chronic Granulomatous Disease, which is in Phase 1/2 clinical trial; PM577 for Wilson Disease, that is in preclinical studies; and PM647 to treat genetic disorder caused by mutations in the SERPINA1 gene, resulting in production of misfolded Z-AAT protein that accumulates in the liver and leads to hepatocellular injury, cirrhosis, and increased risk of hepatocellular carcinoma. The company also provides vivo programs targeting diseases of the liver, and Cystic Fibrosis programs. In addition, it offers Prime Editing technology comprising a programmable DNA binding domains, such as Cas domains, are typically modified such that they do not cause a double-stranded break in the DNA, as well as a RT domain that copies the edited DNA sequence directly into the target genomic site where the edit is made; and pegRNA which contains a search sequence, also known as a spacer, which provides a target genomic address for the Prime Editor. The company has a research collaboration and license agreement with BMS; Cystic Fibrosis Foundation; Broad Institute; and Beam. Prime Medicine, Inc. was incorporated in 2019 and is headquartered in Cambridge, Massachusetts.

Stock analysis

Prime Medicine, Inc. Common Stock (PRME) currently trades at $2.98, while our model-based Fair Value estimate is $0.4500, 84.9% below the price, so the stock looks overvalued today.

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Valuation

How firm this estimate is: it rests on 1 models at a data quality of 96/100, which puts the evidence level at low.

Scenario range: $0.3300 (bear) to $0.6700 (bull), the price of $2.98 sits above it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.

Quality & growth

The Quality Score stands at 28/100 (below-average quality), in the Healthcare sector.

Weak Growth: Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.

Prime Medicine, Inc. Common Stock reported revenue of $4.6M in FY2025 versus $0 in FY2021. Reported net income was −$201M in FY2025.

Key figures

Market cap $528M · EPS (TTM) $−1.05 · Return on equity −373% · Return on assets (EBIT) −59.0% · Operating margin −3,751% · Revenue (TTM) $4.1M · Revenue growth (YoY) +3.5% · Free cash flow −$167M.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 25 out of 100 (medium confidence).

What moves the price

The share trades about 55% below its 52-week high and 10% above its 52-week low, currently below its 200-day average.

For context, the median of 10 Healthcare peers we cover trades at 10% fair-value upside, at −85%, PRME screens richer than that median.

Fair Value models

Bear $0.3300 Fair Value $0.4500 Bull $0.6700
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above is their evidence-weighted blend, not the output of a single model. Bear ⓘBear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull ⓘBull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target. If a model's bull case is above four times its base value, the table shows that limit with a > sign (like the overall Bull above): beyond it no assumption holds. Evidence ⓘEvidence = how well-backed THIS model's estimate is for this stock (0–100): how complete and reliable its input data are, and how well the model fits the company. The final Fair Value is an evidence-weighted blend, so better-evidenced models count more. Green ≥70, amber 50–69, grey below 50.
Highest evidence
NCAV (Graham) $0.3300 $0.4500 $0.6700 51
All 1 models by family
Asset-Based
NCAV (Graham) $0.3300 $0.4500 $0.6700 51

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Quality Score breakdown

Overall quality 28/100

Of which business quality 29 · Market factors (momentum, volatility) 8

Profitability 0
Margins and returns on capital today
Quality Growth 70
Are margins and returns improving?
Cashflow 7
Earnings quality: real cash, not paper profit
Fin. Strength 52
Balance sheet, leverage, solvency risk
Investment 67
Disciplined investing over empire-building
Low Volatility 0
Calm price path (market factor)
Momentum 15
Price trend over the last 3–12 months (market factor)
52W Momentum 4
Distance to the 52-week high (market factor)
Net Issuance 0
Share count: buybacks or dilution?

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Revenue & earnings trend

Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card. 0/100
Revenue growth is inconsistent: the periods point in different directions, so there is no trend to rely on.
Revenue growth 1 year
+55.3%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
−3.8%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
−2.3%
Start year 2020 (pandemic)
Profit margin (trend) ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.
−17.9% (2020) → −4,498.1% (2025)
What shareholders gained per year ⓘWe only publish this rate when it is defensible. Reason: fiscal 2025 is a loss year, no rate is defined from a loss
not computed

PRME screens overvalued: fair value 85% below the price. Compare with Vertex Pharmaceuticals Incorporated →

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Peer GroupⓘHow this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.Biotechnology · 626 stocks

Beats the industry median on 1/5 measures
Overall it trails its industry peers.
Valuation
Quality Score 29 · Bottom 25%
Fair Value upside −84.9% · Bottom 25%
Profitability
Return on assets −46.5% · Bottom 25%
Growth and dividend
Revenue growth 3.5% · Above median

Valuation Multiplesvs Biotechnology median · lower = cheaper

P/B 4.38× · Priciest 25%

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)0 · sector 0
FUTURE (revenue growth)18 · sector 0
PAST (return on equity)0 · sector 0
HEALTH (low debt)0 · sector 97
DIVIDEND (yield)0 · sector 22

VALUE 0: the price sits above our fair-value range.

Context: sector, industry, market

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

None of the checked exposures detected

Similar stocks

10 more Biotechnology stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value
Vertex Pharmaceuticals Incorporated VRTX $527.67 $580.44 +10%
Regeneron Pharmaceuticals, Inc REGN $752.25 $1,275 +69%
argenx SE ARGX $959.49 $918.60 −4%
CSL Limited CSL A$175.35 A$192.89 +10%
Samsung Biologics Co 207940 1,354,000 KRW 1,489,400 KRW +10%
BeOne Medicines AG ONC $360.85 $280.94 −22%
Alnylam Pharmaceuticals, Inc ALNY $255.96 $217.88 −15%
Royalty Pharma plc RPRX $58.21 $19.01 −67%
Celltrion, Inc 068270 177,400 KRW 74,519 KRW −58%
WuXi Biologics (Cayman) Inc 2269 HK$53.00 HK$58.30 +10%

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Cite: Fair Value Calculator (2026). "Prime Medicine, Inc. Common Stock Fair Value". https://www.fairvalue-calculator.com/stock/PRME

Frequently asked questions

Is Prime Medicine, Inc. (PRME) overvalued or undervalued?
As of Sep 24, 2026, our model estimates a fair value of $0.4500 versus a price of $2.98, about −85% upside (overvalued).
What is the fair value of PRME?
Our model-based fair value for Prime Medicine, Inc. Common Stock is $0.4500 (as of Sep 24, 2026), built from audited fundamentals. The current price: $2.98.
What is the quality score of PRME?
Prime Medicine, Inc. Common Stock has a Quality Score of 28/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for Prime Medicine, Inc. (PRME)?
Our model-based price target is the fair value of $0.4500 (as of Sep 24, 2026) from 1 valuation models. Cautious scenario $0.3300, optimistic scenario $0.6700. It is a calculation from audited fundamentals, not an analyst target.
What is the Prime Medicine, Inc. Common Stock stock forecast for 2026?
Our models put fair value at $0.4500, about −85% upside versus a price of $2.98 (overvalued). Cautious scenario $0.3300, optimistic scenario $0.6700. The calculation is refreshed regularly with new filings.
What is the revenue of Prime Medicine, Inc. (PRME)?
Prime Medicine, Inc. Common Stock reported trailing-twelve-month revenue of about $4.1M (latest available figure, as of Sep 24, 2026).
What is the intrinsic value of Prime Medicine, Inc. (PRME)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Prime Medicine, Inc. Common Stock it is $0.4500 per share (as of Sep 24, 2026), against a price of $2.98. It is the blended result of 1 valuation models (cash flow, earnings, asset, dividend).
Is Prime Medicine, Inc. Common Stock stock overvalued or undervalued in 2026?
As of Sep 24, 2026, PRME trades above its calculated fair value: price $2.98, fair value $0.4500, a gap of about −85% (overvalued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of PRME?
No. The price is what the market pays today ($2.98); the fair value is what the company's own numbers justify ($0.4500). For Prime Medicine, Inc. Common Stock the two are $2.53 per share apart. That gap is exactly why we show both numbers side by side.
How much is Prime Medicine, Inc. Common Stock worth?
The market values Prime Medicine, Inc. Common Stock at about $528M (market capitalisation, as of Sep 24, 2026). Per share that is $2.98; our models calculate a fair value of $0.4500 per share.
What do the bullish and bearish scenarios say about PRME?
Our models span a range for Prime Medicine, Inc. Common Stock: cautious scenario $0.3300, base $0.4500, optimistic $0.6700 per share (as of Sep 24, 2026, price $2.98). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of Prime Medicine, Inc. (PRME)?
Balance-sheet figures for Prime Medicine, Inc. Common Stock (as of Sep 24, 2026): return on equity −373.3%. They feed the Quality Score of 28/100, which measures business quality independently of the share price.
How far is PRME from its 52-week high?
Prime Medicine, Inc. Common Stock trades at $2.98, about 55% below its 52-week high of $6.67 and 10% above the low of $2.70 (as of Oct 2, 2026). Distance from the high says nothing about value: that is what the fair value of $0.4500 is for.
Which stocks are comparable to Prime Medicine, Inc. Common Stock?
From the same area (Healthcare) we also value Vertex Pharmaceuticals Incorporated, Regeneron Pharmaceuticals, Inc, argenx SE, CSL Limited, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is Prime Medicine, Inc. Common Stock stock attractive at the current price?
The data as of Sep 24, 2026: price $2.98, calculated fair value $0.4500 (−85%), Quality Score 28/100, from 1 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of PRME calculated?
We run Prime Medicine, Inc. Common Stock through 1 models from four families: discounted cash flow, earnings models, asset and balance-sheet models, and dividend models. Every model gets the same audited fundamentals; the result is the weighted average of $0.4500, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 14.5 % above its aggregate fair value. Prime Medicine, Inc. Common Stock itself currently trades above fair value. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of Prime Medicine, Inc. (PRME)?
The closing price on Oct 2, 2026 was $2.98. Our model-based fair value is $0.4500, about −85% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Prime Medicine, Inc. Common Stock right now?
The price sits above even our optimistic bull case ($0.6700). The favourable scenario is already priced in. Weak quality (28/100) and above fair value at the same time, the margin of safety is missing on both counts. The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution. A fairly wide model range ($0.3300 to $0.6700) leaves room in how you read the outcome.

Key figures of Prime Medicine, Inc. Common Stock

How large is the market capitalisation of Prime Medicine, Inc. (PRME)?
The market capitalisation of Prime Medicine, Inc. Common Stock is $528M. The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What are the earnings per share of Prime Medicine, Inc. (PRME)?
Earnings per share at Prime Medicine, Inc. Common Stock are $−1.05. Earnings per share over the last twelve months: total profit spread across every single share.
What is the return on equity of Prime Medicine, Inc. (PRME)?
The return on equity (ROE) of Prime Medicine, Inc. Common Stock is −373% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of Prime Medicine, Inc. (PRME)?
On an EBIT basis the return on assets of Prime Medicine, Inc. Common Stock is −59.0% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of Prime Medicine, Inc. (PRME)?
The operating margin of Prime Medicine, Inc. Common Stock is −3,751% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Prime Medicine, Inc. (PRME)?
Revenue at Prime Medicine, Inc. Common Stock is growing +3.5% versus a year earlier (3y avg −3.8%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How much free cash flow does Prime Medicine, Inc. (PRME) generate?
The free cash flow of Prime Medicine, Inc. Common Stock is −$167M (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
How much net debt does Prime Medicine, Inc. (PRME) carry?
The net debt of Prime Medicine, Inc. Common Stock is $53.4M (fiscal year 2025). Debt minus cash on hand. The note shows how many years of free cash flow could in theory pay it off.
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