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PepGen Ltd (PEPG) fair value: what the stock is really worth

As of Sep 24, 2026: fair value of PepGen Ltd $1.53, price $2.68, upside -42.9%, quality 40 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 US7133171055

PL PepGen Ltd logo Thin data Sep 24, 2026

PepGen Ltd

PEPG · US

Weakest SetupStrongly overvalued and low quality.

!Fair value $1.53 · Strongly overvalued (−43%)
!Quality 40/100
!negative free cash flow
!Mixed vs. peers (4/7)
!Narrow moat 0/100
!Evidence only low, so the estimate is less certain
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26 valuation models 8 families, DCF to NCAV 37 quality factors margins, balance sheet, cashflow, debt 6 AI factors moat, what no ratio measures 2,000+ data points verified, per stock, median

69 individual criteria per stock, every one traceable See the method →

Price vs Fair Value

$18.55 $1.00 Fair Value $1.53 May 2022 Sep 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

53‑month range $1.00 – $18.55 · fair‑value band $1.01 – $1.91 · the $2.68 price screens above the $1.53 fair value. Dashed = 300-day average. As of Sep 24, 2026.

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Company profile

PepGen Inc., a clinical-stage biotechnology company, develops oligonucleotide therapeutics for the treatment of severe neuromuscular and neurologic diseases in the United States.

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PepGen Inc., a clinical-stage biotechnology company, develops oligonucleotide therapeutics for the treatment of severe neuromuscular and neurologic diseases in the United States. The company engages in the development of PGN-EDODM1, an EDO peptide-conjugated PMO, which is in Phase 2 clinical trial for the treatment of myotonic dystrophy type 1; and FREEDOM2-DM1, which is in Phase 2 for the treatment of myotonic dystrophy type 1. It is also involved in FREEDOM-OLE, an open label expansion study. The company was founded in 2018 and is based in Boston, Massachusetts.

Stock analysis

PepGen Ltd (PEPG) currently trades at $2.68, while our model-based Fair Value estimate is $1.53, implying the stock looks roughly 75.2% 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: $1.01 (bear) to $1.91 (bull), the price of $2.68 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 40/100 (below-average quality), in the Healthcare sector.

PepGen Ltd reported revenue of $0 in FY2025 versus $0 in FY2021. Reported net income was −$89.7M in FY2025.

Key figures

Market cap $185M · EPS (TTM) $−1.00 · Return on equity −75.5% · Return on assets (EBIT) −45.6% · Free cash flow −$81.9M · Net cash $43.5M.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 50 out of 100 (low confidence).

What moves the price

The share trades about 63% below its 52-week high and 99% above its 52-week low, currently below its 200-day average.

For context, the median of 10 Healthcare peers we cover trades at −5% fair-value upside, at −43%, PEPG screens richer than that median.

Fair Value models

Bear $1.01 Fair Value $1.53 Bull $1.91
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. 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) $1.06 $1.43 $2.13 51
All 1 models by family
Asset-Based
NCAV (Graham) $1.06 $1.43 $2.13 51

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Quality Score breakdown

Overall quality 40/100

Of which business quality 42 · Market factors (momentum, volatility) 42

Profitability 0
Margins and returns on capital today
Quality Growth 75
Are margins and returns improving?
Cashflow 27
Earnings quality: real cash, not paper profit
Fin. Strength 75
Balance sheet, leverage, solvency risk
Investment 100
Disciplined investing over empire-building
Low Volatility 0
Calm price path (market factor)
Momentum 66
Price trend over the last 3–12 months (market factor)
52W Momentum 49
Distance to the 52-week high (market factor)
Net Issuance 0
Share count: buybacks or dilution?

Open the full quality analysis →

Revenue & earnings trend

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

PEPG screens 75% overvalued. 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 · 654 stocks

Beats the industry median on 4/6 measures
Overall it ranks above its industry peers.
Valuation
Quality Score 42 · Below median
Fair Value upside −43% · Above median
Profitability
Return on assets −39% · Bottom 25%
Operating margin (TTM) 0% · Above median
Growth and dividend
Revenue growth 0% · Above median

Valuation Multiplesvs Biotechnology median · lower = cheaper

P/B 1.26× · Cheaper than median

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 $522.38 $574.62 +10%
Regeneron Pharmaceuticals, Inc REGN $801.82 $1,252 +56%
argenx SE ARGX $963.79 $918.60 −5%
Samsung Biologics Co 207940 1,366,000 KRW 1,502,600 KRW +10%
CSL Limited CSL A$179.12 A$197.03 +10%
Alnylam Pharmaceuticals, Inc ALNY $251.65 $218.36 −13%
Royalty Pharma plc RPRX $58.52 $24.22 −59%
BeOne Medicines AG 6160 HK$218.20 HK$169.72 −22%
Celltrion, Inc 068270 177,400 KRW 74,519 KRW −58%
BioNTech SE BNTX $100.87 $63.62 −37%

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PepGen Ltd · Fair Value
$1.53 −75%Fair Value
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Cite: Fair Value Calculator (2026). "PepGen Ltd Fair Value". https://www.fairvalue-calculator.com/stock/PEPG

Frequently asked questions

Is PepGen Ltd (PEPG) overvalued or undervalued?
As of Sep 24, 2026, our model estimates a fair value of $1.53 versus a price of $2.68, about −43% upside (overvalued).
What is the fair value of PEPG?
Our model-based fair value for PepGen Ltd is $1.53 (as of Sep 24, 2026), built from audited fundamentals. The current price: $2.68.
What is the quality score of PEPG?
PepGen Ltd has a Quality Score of 40/100. 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 PepGen Ltd (PEPG)?
Our model-based price target is the fair value of $1.53 (as of Sep 24, 2026) from 1 valuation models. Cautious scenario $1.01, optimistic scenario $1.91. It is a calculation from audited fundamentals, not an analyst target.
What is the PepGen Ltd stock forecast for 2026?
Our models put fair value at $1.53, about −43% upside versus a price of $2.68 (overvalued). Cautious scenario $1.01, optimistic scenario $1.91. The calculation is refreshed regularly with new filings.
What is the intrinsic value of PepGen Ltd (PEPG)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For PepGen Ltd it is $1.53 per share (as of Sep 24, 2026), against a price of $2.68. It is the blended result of 1 valuation models (cash flow, earnings, asset, dividend).
Is PepGen Ltd stock overvalued or undervalued in 2026?
As of Sep 24, 2026, PEPG trades above its calculated fair value: price $2.68, fair value $1.53, a gap of about −43% (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 PEPG?
No. The price is what the market pays today ($2.68); the fair value is what the company's own numbers justify ($1.53). For PepGen Ltd the two are $1.15 per share apart. That gap is exactly why we show both numbers side by side.
How much is PepGen Ltd worth?
The market values PepGen Ltd at about $185M (market capitalisation, as of Sep 24, 2026). Per share that is $2.68; our models calculate a fair value of $1.53 per share.
What do the bullish and bearish scenarios say about PEPG?
Our models span a range for PepGen Ltd: cautious scenario $1.01, base $1.53, optimistic $1.91 per share (as of Sep 24, 2026, price $2.68). The range comes from different growth and margin assumptions, not from analyst opinions.
How solid is the balance sheet of PepGen Ltd (PEPG)?
Balance-sheet figures for PepGen Ltd (as of Sep 24, 2026): return on equity −75.5%. They feed the Quality Score of 40/100, which measures business quality independently of the share price.
How far is PEPG from its 52-week high?
PepGen Ltd trades at $2.68, about 63% below its 52-week high of $7.17 and 99% above the low of $1.35 (as of Sep 24, 2026). Distance from the high says nothing about value: that is what the fair value of $1.53 is for.
Which stocks are comparable to PepGen Ltd?
From the same area (Healthcare) we also value Vertex Pharmaceuticals Incorporated, Regeneron Pharmaceuticals, Inc, argenx SE, Samsung Biologics Co, 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 PepGen Ltd stock attractive at the current price?
The data as of Sep 24, 2026: price $2.68, calculated fair value $1.53 (−43%), Quality Score 40/100, 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 PEPG calculated?
We run PepGen Ltd 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 $1.53, 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 14.0 % above its aggregate fair value. PepGen Ltd 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 PepGen Ltd (PEPG)?
The closing price on Sep 24, 2026 was $2.68. Our model-based fair value is $1.53, about −43% upside (overvalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with PepGen Ltd right now?
The price sits above even our optimistic bull case ($1.91). The favourable scenario is already priced in. Weak quality (40/100) 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 ($1.01 to $1.91) leaves room in how you read the outcome.

Key figures of PepGen Ltd

How large is the market capitalisation of PepGen Ltd (PEPG)?
The market capitalisation of PepGen Ltd is $185M. 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 PepGen Ltd (PEPG)?
Earnings per share at PepGen Ltd are $−1.00. Earnings per share over the last twelve months: total profit spread across every single share.
What is the return on equity of PepGen Ltd (PEPG)?
The return on equity (ROE) of PepGen Ltd is −75.5% (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 PepGen Ltd (PEPG)?
On an EBIT basis the return on assets of PepGen Ltd is −45.6% (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.
How much free cash flow does PepGen Ltd (PEPG) generate?
The free cash flow of PepGen Ltd is −$81.9M (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
How much net cash does PepGen Ltd (PEPG) hold?
PepGen Ltd holds more cash than debt, $43.5M net (fiscal year 2025). The company holds more cash than debt, a safety cushion.
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