Greenwich LifeSciences, Inc.

Greenwich LifeSciences, Inc. (GLSI) Market Cap

Greenwich LifeSciences, Inc. has a market capitalization of $198.2M.

Price: $13.50

β–Ό -0.52 (-3.71%)

Market Cap: 198.16M

NASDAQ Β· time unavailable

CEO: Snehal S. Patel

Sector: Healthcare

Industry: Biotechnology

IPO Date: 2020-09-25

Website: https://greenwichlifesciences.com

Greenwich LifeSciences, Inc. (GLSI) - Company Information

Market Cap: 198.16M|Sector: Healthcare

Company Profile

Greenwich LifeSciences, Inc. functions as a clinical-stage biopharmaceutical company, dedicated to developing innovative cancer immunotherapies. These treatments are primarily focused on breast cancer and other HER2/neu-positive malignancies. Its flagship therapeutic candidate is GP2, an immunotherapy which has successfully completed its Phase IIb clinical trials. This drug is designed to prevent the recurrence of breast cancer in patients who have already undergone surgical removal of the tumor. Founded in 2006 and based in Stafford, Texas, the company was formerly known as Norwell, Inc. until it rebranded to Greenwich LifeSciences, Inc. in March 2018.

Analyst Sentiment

92%
Strong Buy

From 2 Active Polls

1Y Forecast: $50.00

β–² +270.4% Potential Upside

Consensus Target Metrics

Low Bound

$50

Median

$50

High Bound

$50

Average

$50

Price & Moving Averages

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🎯 Wall Street Analyst Intelligence Report

1-Year structural target targets, chart projections, and sentiment maps.

Average 1Y Target
$50.00
β–² +270.37% Upside
Low Target
$50.00
270% Risk
Median Target
$50.00
270% Mid
High Target
$50.00
270% Max
Consensus
Buy
2 / 2 Buys

Consensus Trend Projection

Trailing closures vs. 12-month metrics map.

Analyst Vote Distribution

Aggregate institutional coverage sentiment weights.

πŸ“Š Historical Valuation Multiples

Real-time Trailing Twelve Month (TTM) momentum side-by-side with discrete quarterly metrics.

Fiscal QuarterTTMQ1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024
Period EndingTrailing 12MMar 31, 2026Dec 31, 2025Sep 30, 2025Jun 30, 2025Mar 31, 2025Dec 31, 2024Sep 30, 2024Jun 30, 2024
Market Cap ($M)198350287136121126148189216
Enterprise Value ($M)188339280132118123144183209
Price to Earnings Ratio (P/E)-8.60-15.40-9.06-8.29-7.56-9.54-4.60-17.96-20.96
Price/Earnings-to-Growth Ratio (PEG)β€”β€”β€”β€”β€”β€”β€”β€”β€”
Price to Sales Ratio (P/S)β€”β€”β€”β€”β€”β€”β€”β€”β€”
Price to Book Ratio (P/B)37.3166.38811.4162.1284.2595.7558.2937.9036.84
Price to Free Cash Flow Ratio (P/FCF)-15.50-74.40-90.28-50.81-54.31-68.50-79.75-73.09-206.57
Enterprise Value to Sales (EV/Sales)β€”β€”β€”β€”β€”β€”β€”β€”β€”
Enterprise Value to EBITDA (EV/EBITDA)-8.63-59.99-35.40-31.77-29.36-44.79-17.86-68.61-80.29
Debt to Equity Ratio0.48β€”β€”β€”β€”β€”β€”β€”β€”

πŸ“˜ Full Research Report

ℹ️

AI-Generated Research: This report is for informational purposes only.

πŸ“˜ GREENWICH LIFESCIENCES INC (GLSI) β€” Investment Overview

🧩 Business Model Overview

GREENWICH LIFESCIENCES INC is a biopharmaceutical development company whose value creation depends on translating scientific assets into regulated therapies. The company’s β€œhow it works” model typically involves (1) funding and executing preclinical/clinical development, (2) securing regulatory approvals (e.g., FDA/other jurisdictions), and (3) monetizing pipeline outcomes through product commercialization, licensing arrangements, and/or collaborations. In practice, durability of the business model is driven less by near-term sales infrastructure and more by the ability to maintain an investable pipeline, manage clinical execution risk, and convert approvals into defensible, reimbursable market access.

πŸ’° Revenue Streams & Monetisation Model

Revenue in this category tends to be a mix of:
  • Non-recurring payments: licensing fees, option/milestone payments tied to development or regulatory events.
  • Recurring economics (when established): royalties from partnered commercialization or contracted supply arrangements.
  • Product revenue (post-approval): sales from direct commercialization or via commercial partners, often followed by label expansions or line extensions.
Margin structure follows lifecycle timing. Prior to commercialization, the company is typically cash-consuming with limited revenue visibility. Once products reach approval, gross margin potential can be meaningful due to intellectual property protection, though net margins remain dependent on development amortization, manufacturing readiness, and commercial execution costs.

🧠 Competitive Advantages & Market Positioning

The moat for a developer like GLSI is most commonly intangible and regulatory rather than cost-curve or distribution-based:
  • Patent protection & exclusivity: legal exclusivity can prevent direct generic/biologic competition and supports long-duration cash flow potential if clinical differentiation is maintained.
  • Regulatory barriers to entry: the clinical and evidence requirements to obtain approvals create a high hurdle for competitors attempting late-stage substitution.
  • Scientific execution credibility: repeatable development execution can improve partner interest and improve the probability-weighted value of pipeline assets.
Competitive benchmarking (examples):
  • Amgen β€” diversified, franchise-driven biopharma competing on scale of R&D and commercialization.
  • Merck β€” broad clinical development engine with strong partnering and late-stage execution capabilities.
  • Bristol Myers Squibb β€” large-cap oncology/immune pipeline depth that can crowd out smaller programs through capital intensity.
Contrast vs. rivals: large-cap peers generally compete through breadth (multiple therapeutic areas, extensive trial capacity, and established commercialization). GLSI’s positioning is typically more asset- and thesis-driven, where value hinges on specific pipeline differentiation and the strength of intellectual property plus regulatory outcomes. The practical β€œcompetition” is therefore not only therapeutic overlap, but also who can attract capital, progress candidates to approval, and secure partner economics under comparable timelines.

πŸš€ Multi-Year Growth Drivers

Over a 5–10 year horizon, GLSI’s growth profile is most sensitive to secular and structural dynamics that apply to biopharmaceutical innovation:
  • TAM expansion through better therapies: as diagnostic capabilities and clinical guidelines evolve, patient identification and treatment rates can broaden for certain therapy classes.
  • Pipeline conversion: multi-stage clinical milestones (from trials to approvals) are the primary driver of step-function value creation.
  • Platform and development learning: improved probability of success from refined trial design, endpoints, and operational execution can reduce effective development risk.
  • Partnering and monetization options: licensing and collaboration markets can provide non-dilutive funding and a path to recurring economics.
  • Label expansion: post-approval growth often comes from additional indications, combinations, or improved uptake mechanisms supported by emerging clinical data.

⚠ Risk Factors to Monitor

Structural threats that typically govern outcomes for a development-stage biopharma include:
  • Clinical and regulatory risk: failure to demonstrate efficacy/safety, endpoint misalignment, or delays that reduce expected time-to-monetization.
  • IP risk: patents may be challenged, invalidated, or designed around; exclusivity timelines can compress.
  • Capital intensity and dilution: extended development timelines can increase reliance on equity financing or unfavorable terms.
  • Manufacturing and quality risk: scale-up, supply continuity, and regulatory quality systems can become constraints once commercialization approaches.
  • Competitive substitution: stronger efficacy or safety profiles from better-funded peers can limit adoption even after approval.

πŸ“Š Valuation & Market View

Biopharmaceutical markets generally value companies on probability-adjusted pipeline economics rather than stable current earnings power. Common frameworks include:
  • EV / cash or EV-to-resources: for pre-commercial firms where cash burn and runway determine survival and optionality.
  • Sales or EV / P&S for approved assets: when commercialization starts, the market begins to anchor on forward revenue durability.
  • Pipeline risk and milestone expectations: valuation sensitivity typically rises with clinical readouts, regulatory milestones, and clarity on market access.
Key drivers that move the needle are evidence strength, probability of success, IP defensibility, and the quality of commercialization pathway (direct vs. partnered economics).

πŸ” Investment Takeaway

GLSI’s long-term investment case rests on intangible moatsβ€”primarily patent/exclusivity and regulatory approval barriersβ€”that can enable durable economics if pipeline assets translate into clinically differentiated, approvable therapies. The risk profile is inherently non-linear due to clinical/regulatory uncertainty and capital requirements, so the highest-conviction view comes from monitoring pipeline progression, evidence quality, IP durability, and the credibility of monetization routes (commercialization and/or licensing).

⚠ AI-generated β€” informational only. Validate using filings before investing.

πŸ“° Market News & Coverage

15 Stories Available

Real-time institutional reporting and market updates for GLSI.

globenewswire.comβ€’2026-07-22

Greenwich LifeSciences Announces Approval to Expand FLAMINGO-01 into the United Kingdom

STAFFORD, Texas, July 22, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating GLSI-100, an immunotherapy to prevent breast cancer recurrences, today announced the regulatory approval to expand FLAMINGO-01 into the United Kingdom.

globenewswire.comβ€’2026-07-20

Greenwich LifeSciences Provides Clinical Updates on FLAMINGO-01

STAFFORD, Texas, July 20, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating GLSI-100, an immunotherapy to prevent breast cancer recurrences, today provided the following clinical updates on FLAMINGO-01.

globenewswire.comβ€’2026-07-16

Greenwich LifeSciences Announces European Approval for Combining Both HLA Populations in FLAMINGO-01

STAFFORD, Texas, July 16, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating GLSI-100, an immunotherapy to prevent breast cancer recurrences, today provided the following update on the combination of both HLA-A*02 and non-HLA-A*02 patients in FLAMINGO-01 in Europe.

seekingalpha.comβ€’2026-07-16

Greenwich LifeSciences The Overlooked Need

Greenwich LifeSciences is a single-asset biotech focused on GLSI-100, an immunotherapy for HER2-positive breast cancer, currently in Phase 3 trials. GLSI-100 demonstrated a 70-80% reduction in cancer recurrence in Phase 2b, outperforming approved therapies, with no serious adverse events reported. GLSI trades at a ~$279M market cap, below recent M&A comps, despite advanced clinical progress and a large addressable market in HER2/neu-positive breast cancer.

globenewswire.comβ€’2026-07-09

Greenwich LifeSciences Announces European Approval for Use of Commercially Manufactured GP2 in FLAMINGO-01

STAFFORD, Texas, July 09, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating GLSI-100, an immunotherapy to prevent breast cancer recurrences, today provided the following update on the use of commercially manufactured GP2 in FLAMINGO-01 in Europe.

globenewswire.comβ€’2026-06-01

Greenwich LifeSciences Presents FLAMINGO-01 Phase III Trial Open Label Data Published at ASCO Meeting 2026

STAFFORD, Texas, June 01, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today presents the published abstract and poster from the ASCO Annual Meeting 2026.

globenewswire.comβ€’2026-06-01

Greenwich LifeSciences Provides Update Regarding Form 10-K Filing

STAFFORD, Texas, June 01, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today provided an update on its Form 10-K filing for the fiscal year ending December 31, 2025.

globenewswire.comβ€’2026-06-01

Greenwich LifeSciences Provides Update Regarding Form 10-K Filing

STAFFORD, Texas, June 01, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today provided an update on its Form 10-K filing for the fiscal year ending December 31, 2025.

globenewswire.comβ€’2026-05-22

Greenwich LifeSciences Announces Receipt of Nasdaq Notice Regarding Late Form 10-Q Filing

STAFFORD, Texas, May 22, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) ("Greenwich" or the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today announced that on May 20, 2026, the Company received notification from the Listing Qualifications Department of The Nasdaq Stock Market LLC notifying the Company that, because it has not yet filed its Quarterly Report on Form 10-Q for the three months ended March 31, 2026, the Company is not currently in compliance with Nasdaq Listing Rule 5250(c)(1), which requires timely filing of periodic financial reports with the Securities and Exchange Commission.

globenewswire.comβ€’2026-05-22

Greenwich LifeSciences Announces Receipt of Nasdaq Notice Regarding Late Form 10-Q Filing

STAFFORD, Texas, May 22, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) ("Greenwich" or the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today announced that on May 20, 2026, the Company received notification from the Listing Qualifications Department of The Nasdaq Stock Market LLC notifying the Company that, because it has not yet filed its Quarterly Report on Form 10-Q for the three months ended March 31, 2026, the Company is not currently in compliance with Nasdaq Listing Rule 5250(c)(1), which requires timely filing of periodic financial reports with the Securities and Exchange Commission. The notice has no immediate effect on the listing or trading of the Company's common stock, which continues to trade on the Nasdaq Capital Market under the symbol "GLSI."

globenewswire.comβ€’2026-04-30

Greenwich LifeSciences Provides Update Regarding Form 10-K Filing

STAFFORD, Texas, April 30, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today provided an update on its Form 10-K filing for the fiscal year ending December 31, 2025.

globenewswire.comβ€’2026-04-30

Greenwich LifeSciences Provides Update Regarding Form 10-K Filing

STAFFORD, Texas, April 30, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today provided an update on its Form 10-K filing for the fiscal year ending December 31, 2025.

globenewswire.comβ€’2026-04-23

Greenwich LifeSciences Announces Acceptance of Abstract at ASCO 2026

STAFFORD, Texas, April 23, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today announced that an abstract has been accepted for publication at the upcoming 2026 ASCO Annual Meeting along with a corresponding poster presentation.

globenewswire.comβ€’2026-04-23

Greenwich LifeSciences Announces Acceptance of Abstract at ASCO 2026

STAFFORD, Texas, April 23, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today announced that an abstract has been accepted for publication at the upcoming 2026 ASCO Annual Meeting along with a corresponding poster presentation.

globenewswire.comβ€’2026-04-22

Greenwich LifeSciences Announces Receipt of Nasdaq Notice Regarding Late Form 10-K Filing

STAFFORD, Texas, April 22, 2026 (GLOBE NEWSWIRE) -- Greenwich LifeSciences, Inc. (Nasdaq: GLSI) (the "Company"), a clinical-stage biopharmaceutical company focused on its Phase III clinical trial, FLAMINGO-01, which is evaluating Fast Track designated GLSI-100, an immunotherapy to prevent breast cancer recurrences, today announced that on April 16, 2026, the Company received notification from the Listing Qualifications Department of The Nasdaq Stock Market LLC notifying the Company that, because it has not yet filed its Annual Report on Form 10-K for the fiscal year ended December 31, 2025, the Company is not currently in compliance with Nasdaq Listing Rule 5250(c)(1), which requires timely filing of periodic financial reports with the Securities and Exchange Commission. The notice has no immediate effect on the listing or trading of the Company's common stock, which continues to trade on the Nasdaq Capital Market under the symbol "GLSI."

πŸ“Š AI Financial Analysis

Powered by StockMarketInfo
Earnings Data: Q Ending 2026-03-31

"Headline (2026-03-31): Revenue $0; EPS -$0.39; Net income -$5.66M. QoQ/YoY trend: Revenue is volatile and appears effectively non-existent in 2025 Q1/Q2/Q3 and again in 2026 Q1 (0 in both 2025 Q1 and 2026 Q1). Net income deteriorated QoQ versus 2025-12-31 (-$7.92M to -$5.66M, an improvement of ~+28.5%), but was more negative YoY versus 2025-03-31 (-$3.26M to -$5.66M, worsening ~-73.7%). Operating loss remains driven by operating expense intensity: R&D of ~$5.21M in 2026 Q1 versus ~$2.60M in 2025 Q1 (+~100.0% YoY). Profitability: Gross profit is not meaningful (gross profit margin reported as 0), and net margins remain deeply negative. Cash flow: operating cash flow was -$4.70M and free cash flow -$4.70M. The company funded losses via financing (net financing +$9.03M), ending with cash of ~$10.51M (up from -$6.74M at 2025-12-31). Shareholder returns: Market momentum is very strong (1y_change +213.8%, 6m_change +185.4%, no dividend). With no buybacks/dividends reported, total shareholder return appears dominated by capital appreciation. "

Revenue Growth

Neutral

Revenue is effectively $0 in 2026-03-31; QoQ/YoY comparisons show no scalable top-line trend (0 vs 0 in 2025-03-31; a small $3.6k print in 2025-12-31 appears non-recurring).

Profitability

Caution

Net loss improved QoQ (~-28.5% less negative vs 2025-12-31) but worsened YoY (~-73.7% more negative vs 2025-03-31). Margins remain deeply negative; EPS -$0.39 vs -$0.58 QoQ and -$0.25 YoY.

Cash Flow Quality

Caution

Operating cash flow remains negative (-$4.70M). However, cash burn was partially offset by strong financing inflows (+$9.03M), supporting liquidity; no dividends or buybacks reported.

Leverage & Balance Sheet

Neutral

No debt reported. Liquidity improved meaningfully by 2026-03-31 with cash ~$10.51M, and total equity ~$5.27M (vs ~$1.79M at 2025-12-31).

Shareholder Returns

Strong

Capital appreciation is very strong: 1-year change +213.8% and 6-month change +185.4%. No dividend yield; buybacks not indicated.

Analyst Sentiment & Valuation

Neutral

Street consensus target is $50 with current price ~$27.74 (implied upside), but for a pre-profit profile with volatile/zero revenue prints, valuation support is speculative.

Disclaimer:This analysis is AI-generated for informational purposes only. Accuracy is not guaranteed and this does not constitute financial advice.

Fundamentals Overview

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πŸ“‹ Official Regulatory 10-K / 10-Q SEC Filings

Direct authenticated documentation links to audited SEC database reports for GLSI.

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SEC Filings (GLSI)

Β© 2026 Stock Market Info β€” Greenwich LifeSciences, Inc. (GLSI) Financial Profile