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Cellectis S.A. (CLLS) Stock Analysis

Educational signal · not a buy or sell recommendation · How to read this

$3.13 -$0.03 (+1.44%) |Weak · 14
Cellectis S.A. (CLLS) bottom line: Bearish Lean — our Council read (31/100) and AI Score (14/100) broadly agree. Strongest signal: Ray Dalio bullish · Biggest watch-out: Seth Klarman bearish.Educational signal, not a buy or sell recommendation. Compare sector peers → · Read the method →
MCap: $314M| Vol: 36K| Target: $9.00 (+187.5%) (Aug 25, 2026) (estimate, not advice)| 52-wk range: $2.35 – $5.48

Market cap $314M is the value of all shares combined. Beta 2.93: the stock has moved about 193% more than the S&P 500.

Data from FMP · Methodology

For informational purposes only. Not financial advice. Machine-generated analysis by Stock Expert AI — model gpt-4o-mini, generated Jun 14, 2026. Editorial oversight is systemic, not page-by-page. Editorially accountable: Sedat ANAK, Founder and Editor-in-Chief. Data sources: Financial Modeling Prep, Yahoo Finance, SEC EDGAR

Quick Answer

Cellectis S.A. (CLLS) trades at $3.13 with MoonshotScore 14/100 (Grade F). Cellectis S.A. is a clinical-stage biotechnology company focused on developing innovative immuno-oncology products using gene-edited T-cells. Market cap: $314M, Sector: Healthcare.

Price as of Sep 10, 2026 · Last analyzed: Jun 14, 2026
Cellectis S.A. is a clinical-stage biotechnology company focused on developing innovative immuno-oncology products using gene-edited T-cells. The company aims to target and eradicate cancer cells, positioning itself as a leader in the field of cell therapy.

CLLS stock analysis for 2026: Analysts have set a consensus price target of $9.00 for Cellectis S.A., suggesting 187.5% upside from the current price of $3.13. The AI MoonshotScore is 14/100, in the Weak band (below 45) — a research signal, not a recommendation. Key factors: analyst coverage, AI-driven quantitative scoring.

Watch the CLLS film Every key number, told as a short cinematic story — just press play. ~2 min

These figures come from statements filed 12 months ago — the most recent this company has published.

Council Score · Weighted Average of 3 Disciplines
Bearish Lean 31/100 · D

CLLS: 1/3 scored disciplines lean bearish. Dominant signal: Seth Klarman bearish.

How is this calculated? →
MoonshotScore · Five-pillar engine · 14/100
Business Quality
Weak Is this a genuinely good business?
Financial Safety
Negative Could this blow up on me?
Valuation
Weak Am I paying a fair price?
Growth Durability
Moderate Is the growth real and likely to last?
Momentum
Neutral Is the market already moving on this?

Strongest side: Growth Durability (6/10, Moderate). Weakest side: Financial Safety (0/10, Negative).

Legends Council · 5 Legends + Moon AI

AI simulations built from the named investors' published principles. Not affiliated with, endorsed by, or the opinion of these individuals. How these lenses are built

Dalio-style lens (simulated)Ray Dalio
Favorable read
Griffin-style lens (simulated)Ken Griffin
Favorable read
Englander-style lens (simulated)Izzy Englander
Unfavorable read
Klarman-style lens (simulated)Seth Klarman
Unfavorable read
Moon AI lens (model)
Unfavorable read
Munger's Mindset · Balance Sheet & Valuation
Financial Health
Neutral
Margin of Safety
Fairly Valued
Council Score · Weighted Average of 3 Disciplines · See tabs for details →
The lenses are modelled on the published principles of the investors named. We are not affiliated with them, they have not endorsed this, and it is not their opinion of this stock.

Why this analysis is different

  • A sector-relative MoonshotScore — five pillars (business quality, financial safety, valuation, growth durability, momentum) re-ranked nightly against the full universe of US-listed common stocks.
  • An AI Council read across up to eight perspectives — value, macro, quantitative, and momentum lenses — that shows where they disagree instead of averaging the tension away.
  • Figures come straight from FMP and Yahoo Finance filings data. The AI writes the narrative around the numbers — it never edits the numbers.

Cellectis S.A. (CLLS) Healthcare & Pipeline Overview

CEOAndre Choulika
Employees229
HeadquartersParis, FR
IPO Year2015

Cellectis S.A. specializes in immuno-oncology therapies utilizing gene-edited T-cells to effectively target and eliminate cancer cells, with a robust pipeline of allogeneic product candidates designed to address various hematologic malignancies.

Data Provenance | Financial Data Quantitative Analysis NASDAQ Analysis: Jun 14, 2026

What Is the Investment Thesis for CLLS?

AI-written as of Jun 14, 2026 — figures and tone reflect the data available then, not today's score.

Cellectis S.A. is positioned for growth within the biotechnology sector, driven by its advanced pipeline of gene-edited T-cell therapies aimed at treating various hematologic malignancies. The company's lead product candidate, UCART19, is in clinical trials and has the potential to capture a significant share of the $5 billion market for CAR T-cell therapies. Additionally, Cellectis's strategic partnerships with leading organizations in the healthcare sector enhance its research capabilities and market reach. The company faces risks, including regulatory hurdles and competition from established players in the immuno-oncology space. However, its innovative technology platform and strong pipeline provide a solid foundation for future growth, with several key clinical milestones expected in the next 12-24 months.

Based on FMP financials and quantitative analysis

CLLS Key Highlights

AI-written as of Jun 14, 2026 — figures and tone reflect the data available then, not today's score.

Market Cap of $314M reflects significant investment in innovative cancer therapies.

  • Profit Margin of -98.7% indicates substantial R&D expenditures typical for clinical-stage biotech firms.
  • Gross Margin of 78.9% showcases the potential for high profitability upon commercialization of therapies.
  • Beta of 2.93 suggests high volatility, characteristic of biotech stocks influenced by clinical trial outcomes.
  • No dividend yield as the company reinvests in R&D to advance its product pipeline.

Who Are CLLS's Competitors?

CLLS is benchmarked below against 8 industry peers on price, market cap, and our AI MoonshotScore.

Company Price Change Market Cap MoonshotScore
NVS Novartis AG $138.04 +0.41% $262B 825-pillar
GILD Gilead Sciences, Inc. $144.81 -0.58% $180B 635-pillar
ALLO Allogene Therapeutics, Inc. $1.76 +1.73% $607M
QTTB Q32 Bio Inc. $10.77 -3.37% $320M 685-pillar
NAGE Niagen Bioscience Inc $3.04 -0.49% $242M 665-pillar
NWPHF Newron Pharmaceuticals S.p.A. $20.00 0.00% $416M 689-signal
ORMP Oramed Pharmaceuticals Inc. $4.74 -0.84% $194M 785-pillar
CRMD CorMedix Inc. $7.93 -2.40% $623M 885-pillar

AI Score by Stock Expert AI · Price data: FMP / Yahoo Finance This table mixes two scoring engines — compare a number only with others carrying the same tag.

What Are CLLS's Key Strengths?

Innovative gene-editing technology that enhances T-cell therapy efficacy.

  • Robust pipeline of allogeneic T-cell product candidates.
  • Strong strategic partnerships that bolster research and development.

What Are CLLS's Weaknesses?

High burn rate typical of clinical-stage biotech companies.

  • Dependence on successful clinical trial outcomes for future growth.
  • Limited revenue generation until products are commercialized.

What Could Drive CLLS Stock Higher?

Results from ongoing clinical trials for UCART19 expected in Q3 2026.

  • Strategic partnerships with leading biotech firms enhancing research capabilities.
  • Regulatory submissions for UCART19 anticipated in late 2026.

What Are the Key Risks for CLLS?

Financial-distress signal — its Altman Z-Score of -1.25 sits in the distress zone (elevated bankruptcy risk).

  • Negative return on equity (-80.6%) — the business is not currently generating profit on shareholder capital.
  • Weak fundamentals — a Piotroski F-Score of 2/9 flags soft profitability, leverage or efficiency.
  • Regulatory hurdles that may delay product approvals.
  • High competition from established players in the immuno-oncology space.
  • Market volatility affecting funding and investment opportunities.

What Are the Growth Opportunities for CLLS?

  • Expansion of UCART19: Cellectis's lead product candidate, UCART19, targets CD19-expressing hematologic malignancies and is currently in clinical trials. The global market for CAR T-cell therapies is expected to grow significantly, reaching $5 billion by 2027, providing a substantial opportunity for Cellectis to capture market share as clinical results progress.
  • Development of ALLO-501 and ALLO-501A: These candidates are designed for relapsed/refractory diffuse large B-cell lymphoma and follicular lymphoma. With the increasing incidence of these cancers, the market for effective treatments is expanding, and successful clinical trials could lead to rapid market entry and revenue generation.
  • Strategic Alliances: Cellectis has formed partnerships with leading organizations, including Allogene Therapeutics and the University of Texas M.D. Anderson Cancer Center. These collaborations enhance research capabilities and facilitate access to broader markets, potentially accelerating the development and commercialization of its therapies.
  • Emerging Therapies for Multiple Myeloma: The company is also developing UCARTCS1 and ALLO-715 for multiple myeloma, a cancer with a growing patient population. The increasing demand for effective treatments in this area presents a significant growth opportunity for Cellectis as it advances its pipeline.
  • Regulatory Approvals: As Cellectis progresses through clinical trials, successful regulatory approvals from the FDA and EMA could lead to commercialization of its therapies. This would not only validate its technology but also open up new revenue streams in the lucrative oncology market.

What Are CLLS's Competitive Advantages?

  • Proprietary gene-editing technology that enhances the efficacy of T-cell therapies.
  • Strong pipeline of product candidates addressing unmet medical needs in oncology.
  • Established strategic alliances with leading biotech firms and research institutions.

What Does CLLS Do?

Founded in 1999 and headquartered in Paris, France, Cellectis S.A. is a pioneering clinical-stage biotechnology company dedicated to advancing immuno-oncology therapies through innovative gene-editing technologies. The company develops allogeneic T-cell products that express chimeric antigen receptors (CARs), enabling them to specifically target and eradicate cancer cells. Cellectis operates primarily through two segments: Therapeutics and Plants, with a strong emphasis on its Therapeutics segment, which houses its promising pipeline of product candidates. Key developments include UCART19, aimed at treating CD19-expressing hematologic malignancies such as acute lymphoblastic leukemia, and other candidates like ALLO-501 and ALLO-501A for relapsed/refractory diffuse large B-cell lymphoma and follicular lymphoma. The company also has promising candidates like ALLO-316 for renal cell carcinoma and UCART123 for acute myeloid leukemia. Cellectis has established strategic alliances with notable organizations, including Allogene Therapeutics, Les Laboratoires Servier, and the University of Texas M.D. Anderson Cancer Center, enhancing its research and development capabilities. With a dedicated workforce of 216 employees, Cellectis is positioned to make significant contributions to the field of oncology through its innovative approaches and strategic collaborations.

What Products and Services Does CLLS Offer?

  • Develops immuno-oncology therapies using gene-edited T-cells.
  • Focuses on creating allogeneic T-cell product candidates for various cancers.
  • Targets hematologic malignancies such as leukemia and lymphoma.
  • Operates through Therapeutics and Plants segments.
  • Engages in strategic alliances with leading biotech and research institutions.
  • Conducts clinical trials to advance its product pipeline.

How Does CLLS Make Money?

  • Generates revenue through the commercialization of innovative cancer therapies.
  • Engages in strategic partnerships to enhance research and development capabilities.
  • Invests heavily in R&D to advance its product pipeline and achieve regulatory approvals.
  • Explores licensing agreements for its technology and product candidates.

What Industry Does CLLS Operate In?

The biotechnology industry is experiencing rapid growth, driven by advancements in gene editing and immunotherapy. The global CAR T-cell therapy market is projected to reach $5 billion by 2027, reflecting increasing investment in innovative cancer treatments. Cellectis S.A. operates in a competitive landscape, facing rivals such as Novartis and Gilead Sciences, which also develop CAR T-cell therapies. The company's focus on allogeneic T-cell products differentiates it from competitors primarily focused on autologous therapies, positioning Cellectis as a potential leader in this emerging market.

Who Are CLLS's Key Customers?

  • Healthcare providers and hospitals seeking innovative cancer treatments.
  • Patients with specific hematologic malignancies.
  • Research institutions collaborating on clinical trials and product development.
Model self-rating on this text: 71% (not a measure of the evidence) Updated: Jun 14, 2026

Research confidence

High 100/100

Broad, current evidence sits behind this analysis.

  • Scored on 91% of our measures
  • Price is current
  • Latest filing 36 days ago
  • Covered by analysts

Why 14?

Measured against companies in the same sector. The figures below are the factor contributions the scoring engine itself produced.

What is helping

  • +0.48 Revenue growth (Growth)
  • +0.19 Gross margin (Business Quality)
  • +0.18 3-year revenue per share (Growth)

What is holding it back

  • -0.78 Operating margin (Business Quality)
  • -0.78 Net margin (Business Quality)
  • -0.60 Debt to equity (Financial Strength)

Risk penalties applied

  • -1.89 Bankruptcy-risk score in the distress zone
  • -2.00 Loss-making with negative retained earnings

Contribution = how far the company sits from its sector on that measure, weighted by how much the pillar counts. Not investment advice. How the score is built →

MoonshotScore History

Recorded daily since 2026-08-23 · 19 snapshots

2026-08-23 62
2026-08-26 62
2026-08-29 62
2026-09-01 15
2026-09-04 15
2026-09-07 14
2026-09-10 14

What changed?

The grade moved from 62 to 14 (-48).

Over the same 18 days the stock moved -8.1%.

Company Profile

Cellectis S.A. operates in the Biotechnology industry within the Healthcare sector. It is headquartered in Paris, FR. The company is led by CEO Andre Choulika. CLLS has traded publicly since 2015.

ROE -81%

Key Financial Metrics

Return on equity for Cellectis S.A. stands at -80.6%, a gauge of how efficiently it converts shareholder capital into profit. Return on assets is -23.3%, showing how much profit it generates from its asset base. Its free cash flow yield is -19.7%, a gauge of the cash the business throws off relative to its market value. A current ratio of 1.52 indicates the company holds enough short-term assets to cover its near-term obligations. Its earnings yield is -23.8%, the inverse of the P/E and a quick read on earnings relative to price.

CLLS Valuation & Market Position

With a $314M market cap, Cellectis S.A. sits in the small-cap segment of the market. Analyst price targets span from $9.00 to $9.00, with a consensus of $9.00. At the current price of $3.13, that implies approximately 188% upside potential. Relative to its peer group, CLLS's quantitative score of 14/100 is below the peer average of 73/100.

Quarterly Financial Performance: Cellectis S.A.

Revenue for Cellectis S.A. came in at $5.2M during Q2 FY2026, a 9.9% contraction versus the preceding quarter. The company recorded a net loss of $21.8M, with diluted EPS of $-0.22. Revenue has contracted over three consecutive quarters, which investors in this small-cap Healthcare stock should monitor closely. Across the four most recent quarters, CLLS averaged $-0.16 in diluted EPS.

F-Score 2/9

Financial Health

Cellectis S.A.'s Piotroski F-Score is 2/9, a 9-point checklist of profitability, leverage and efficiency — flagging fundamental weakness worth scrutiny. Its Altman Z-Score of -1.25 places it in the distress zone, a signal of elevated financial risk.

4/8 beats

Earnings Track Record

Cellectis S.A. has beaten Wall Street's EPS estimate in 4 of its last 8 reported quarters — more hits than misses. Reported results have landed about 48.5% below estimates on average.

CLLS Financials

Fundamental Snapshot

Revenue Growth (FY)
+75.8%
Net Income Growth (FY)
-83.9%
EPS Growth (FY)
-65.9%
Free Cash Flow Growth (FY)
-317.7%
Return on Equity (TTM)
-80.6%
Current Ratio
1.5

Based on FMP financials and quantitative analysis · FY 2025

Bull Case vs Bear Case

Bull Case

  • Innovative gene-editing technology that enhances T-cell therapy efficacy.
  • Robust pipeline of allogeneic T-cell product candidates.
  • Strong strategic partnerships that bolster research and development.
  • Upcoming: Results from ongoing clinical trials for UCART19 expected in Q3 2026.

Bear Case

  • High burn rate typical of clinical-stage biotech companies.
  • Dependence on successful clinical trial outcomes for future growth.
  • Limited revenue generation until products are commercialized.
  • Potential: Regulatory hurdles that may delay product approvals.

AI-generated arguments based on insider flow, news sentiment and technicals — not financial advice · September 2026

Recent Quarterly Results

Quarter Revenue Net Income EPS
Q2 FY2026 $5M -$22M -$0.22
Q1 FY2026 $6M -$18M -$0.18
Q4 FY2025 $10M -$26M -$0.26
Q3 FY2025 $35M $589,000 $0.01

Q2 FY2026 · filed 6 Aug 2026 · SEC EDGAR →

Based on FMP financials and quantitative analysis

CLLS Latest News

CLLS Analyst Consensus

Consensus Rating

Aggregated Buy/Hold/Sell recommendations collected by Financial Modeling Prep for CLLS.

Price Targets

Low
$9.00
Consensus
$9.00
High
$9.00

Median: $9.00 (+187.5% from current price)

Source: FMP analyst consensus · as of Aug 25, 2026 · an estimate, not advice

CLLS MoonshotScore

14/100

What does this score mean?

MoonshotScore is Stock Expert AI's proprietary 0-100 research rating, not a buy or sell recommendation. CLLS scores 14/100 (Grade F): the number comes from the five-pillar engine (business quality, financial safety, valuation, growth durability, momentum), re-ranked daily against sector peers.

Leadership: Andre Choulika

CEO

Andre Choulika is a seasoned executive with extensive experience in the biotechnology sector. He holds a Ph.D. in molecular biology and has a strong background in research and development. Prior to joining Cellectis, he held various leadership roles in biotech companies, focusing on innovative therapies and strategic growth.

Track Record: Under Andre Choulika's leadership, Cellectis has made significant advancements in its product pipeline, including the development of UCART19 and strategic partnerships that enhance its research capabilities. His vision has positioned the company as a leader in gene-edited T-cell therapies.

Cellectis S.A. ADR Information Sponsored

An American Depositary Receipt (ADR) represents shares of a foreign company traded on U.S. exchanges. Cellectis S.A.'s ADR allows U.S. investors to indirectly invest in the company's shares while providing a mechanism for trading in U.S. dollars.

  • Home Market Ticker: Euronext Paris, France
  • ADR Level: 2
  • ADR Ratio: 1:1
Currency Risk: Investors holding Cellectis ADRs are exposed to currency risk as fluctuations in the Euro against the U.S. dollar can affect the value of their investment. Currency depreciation of the Euro relative to the dollar could lead to diminished returns for U.S. investors.
Tax Implications: U.S. investors may be subject to foreign dividend withholding taxes on any distributions made by Cellectis. The current withholding tax rate is typically 15%, depending on tax treaties between the U.S. and France.
Trading Hours: The trading hours for Euronext Paris are generally from 9:00 AM to 5:30 PM CET, while U.S. markets operate from 9:30 AM to 4:00 PM EST. This creates a time difference that investors may want to evaluate when trading.

CLLS Healthcare Stock FAQ

What does the AI Score mean for CLLS?

CLLS holds an AI Score of 14/100 (Grade: F). This is an educational research signal, not a buy or sell recommendation. The number comes from the five-pillar engine (business quality, financial safety, valuation, growth durability, momentum), re-ranked daily against sector peers. Cellectis S.A. is a clinical-stage biotechnology company focused on developing innovative immuno-oncology products using gene-edited T-cells.

Is CLLS a good stock?

Stock Expert AI does not rate CLLS buy, sell or hold. Cellectis S.A. carries a MoonshotScore of 14/100 on the five-pillar engine, a research rating against its peers. Whether it fits is your call: check what it sells, whether it earns, what the price assumes, and what would prove you wrong.

How does Cellectis S.A. navigate regulatory approval processes?

Cellectis S.A. actively engages with regulatory agencies such as the FDA and EMA to ensure compliance with clinical trial requirements and facilitate the approval process for its therapies.

What are the key factors to evaluate for CLLS?

Cellectis S.A. (CLLS) holds an AI score of 14/100 (low). Analysts target $9.00 (+188%). No dividend yield as the company reinvests in R&D to advance its product pipeline. Not financial advice.

How frequently does CLLS data refresh on this page?

CLLS's price was last updated on Sep 10, 2026 and refreshes on page view during U.S. market hours; the quote is a provider snapshot, not an exchange feed. Fundamentals update after quarterly filings; the MoonshotScore recalculates nightly; news aggregates continuously.

What has driven CLLS's recent stock price performance?

Cellectis S.A. (CLLS) moves on earnings results, analyst revisions, sector rotation, and market sentiment. Notable catalyst: Innovative gene-editing technology that enhances T-cell therapy efficacy. See the News tab for the latest drivers. Past performance does not predict future results.

Should investors consider CLLS overvalued or undervalued right now?

Cellectis S.A. (CLLS) has no trailing P/E available here, so lean on price-to-sales and cash flow in the Financials tab. Analysts target $9.00 (+188%) — upside seen. Compare P/E, P/S, and EV/EBITDA against sector peers for a full view.

Can I buy fractional shares of CLLS?

Yes, most major brokerages offer fractional shares of Cellectis S.A. (CLLS) with no minimum purchase requirement. This means you can invest any dollar amount regardless of the share price. Check your brokerage platform for specific terms, fees, and fractional share availability.

How can I track CLLS's earnings and financial reports?

Cellectis S.A. (CLLS) reports quarterly earnings approximately 4-6 weeks after each fiscal quarter ends. You can track earnings dates, revenue and EPS estimates, and actual results on this page's Financials tab. Earnings surprises (beats or misses) often cause significant short-term price moves. Your brokerage can send alerts for CLLS earnings announcements.

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.

Official Resources

Price as of Analysis updated MoonshotScore as of
Data Sources & Methodology
Market data powered by Financial Modeling Prep & Yahoo Finance. AI analysis by Stock Expert AI proprietary algorithms. Technical indicators via industry-standard calculations. Last updated: .
Data Provenance
Sources: Financial Modeling Prep (FMP) — Primary · Yahoo Finance — Fallback · Alpaca — Tertiary
Last fetched:
Cache TTL: Quote 5min · Profile 7d · Financials 7d · Insider 48h
How we use AI: Numbers are pulled directly from FMP & Yahoo Finance — our AI writes the analysis, it never edits the figures.
Data provided as-is for educational purposes. Not financial advice. Methodology

Data provided for informational purposes only.

Analysis Notes
  • The information presented is based on the latest available data and company disclosures.
Data Sources
Financial Modeling Prep (FMP)Stock Expert AI proprietary analysis

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