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PBM vs REVB

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Psyence Biomedical Ltd. Common Shares and Revelation Biosciences, Inc. Common Stock

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Daily close · 2026-10-16

Price return

Both stocks start at 0% on the first shared trading day.

PBM-99.99%
REVB-100.00%
Price return: PBM and REVBHistorical recorded observations on the same scale. Missing metrics leave gaps.-112%-69%-27%16%59%202120222023202420252026

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Split-adjusted closing prices. Dividends are excluded.Year ranges begin January 1 of the end year minus the selected years.
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CONTEXT ATTACHEDPBM + REVBPrices, financials and SEC filing evidence

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Similarity
68.9%
3 shared / 4 total tags

How similar are their businesses?

The score compares business activities in annual filings released in 2025. Core activities receive four times the weight of material activities. Industries that fewer companies share carry more weight.

BiotechnologyHealthcarePharmaceuticals
How we measure overlap ↗
The businesses behind the score

Industry overlap

Filing-derived business activity overlapCounts of retained positive business classifications. Circle sizes do not encode the counts or the weighted similarity score.PBM only0Shared3REVB only1

PBM only · 0

No activities in this group.

Shared activities · 3

REVB only · 1

Positive activities from the two selected annual filings. Expand each group to view all its activities, or use the complete table below. These are classification sets, not revenue shares. The weighted similarity score also accounts for exposure and how common each activity is.
Show business activity table · 4 rows, 3 columns

Core activities receive full weight; material activities receive one quarter. Select a tag to read the filing evidence.

Business activityPBMREVB
CoreCore
CoreCore
CoreCore
Not taggedCore

Biotechnology

PBM Core

Annual filing released 2025-06-25 · GPT 6 Luna

We are a life science biotechnology company that, through our operating subsidiary, Biomed II, is developing natural psilocybin products for the healing of psychological trauma and its mental health consequences in the context of palliative care. We have commenced the clinical trial process to evaluate the safety and efficacy of its product candidates.
The accompanying notes are an integral part of the Consolidated Financial Statements F-8 Notes to the Consolidated Financial Statements 1. Nature of operations and going concern Psyence Biomedical Ltd. (the “Company” or “PBM”), is a life science biotechnology company traded on the Nasdaq exchange (NASDAQ: PBM) that is focused on the development of botanical (nature derived, or non-synthetic) psilocybin-based psychedelic medicines. The Company is working towards developing psychedelic therapeutics to treat mental health disorders. The Company is currently conducting research through clinical trials to evaluate the safety and effectiveness of natural psilocybin in treating adjustment disorder in patients with a cancer diagnosis in a palliative care context (the “Clinical Trials”).
Read the annual filing ↗

REVB Core

Annual filing released 2025-03-06 · GPT 6 Luna

Revelation is developing a pipeline of potential high-value products based on Gemini. Gemini is Revelation’s proprietary formulation of phosphorylated hexaacyl disaccharide (“PHAD®”) an established Toll-like receptor 4 (TLR4”) agonist that can stimulate the human body’s innate immune response to prevent and treat disease. Our current Gemini based programs consist of: Gemini-AKI, which is being developed for the prevention of AKI; Gemini-CKD for the treatment of CKD; and Gemini-PSI, which is being developed for the prevention of PSI. Revelation’s pipeline is summarized in the figure below: The Gemini Platform
12. Segment Information ASC 280, “Segment Reporting,” establishes standards for reporting information about operating segments. Operating segments are defined as components of an enterprise about which separate discrete financial information is available that is evaluated regularly by the chief operating decision maker (“CODM”) in deciding how to allocate resources and in assessing performance. The Company and the Company’s CODM view the Company’s operations and manage its business on the basis of one reportable segment, which is focused on the prevention and treatment of disease by developing and commercializing therapeutics that modulate the innate immune system (see Note 1 for a brief description of the Company’s business). The CODM of the Company is the Chief Executive Officer.
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Healthcare

PBM Core

Annual filing released 2025-06-25 · GPT 6 Luna

We are a life science biotechnology company that, through our operating subsidiary, Biomed II, is developing natural psilocybin products for the healing of psychological trauma and its mental health consequences in the context of palliative care. We have commenced the clinical trial process to evaluate the safety and efficacy of its product candidates.
Psyence Biomedical Ltd. (the “Company” or “PBM”), is the world’s first life science biotechnology company traded on Nasdaq (NASDAQ: PBM) that is focused on the development of botanical (nature derived, or non-synthetic) psilocybin-based psychedelic medicines. The Company is working towards developing safe and effective, nature-derived psychedelic therapeutics to treat a broad range of mental health disorders. The Company is initially focused on mental health disorders in the context of Palliative Care. The Company is currently conducting research through clinical trials to evaluate the safety and effectiveness of natural psilocybin in treating adjustment disorder in patients with a cancer diagnosis in a palliative care context. 56 Operating Results Sales and marketing costs
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REVB Core

Annual filing released 2025-03-06 · GPT 6 Luna

Revelation is a clinical-stage life science company that is focused on rebalancing inflammation to optimize health using its proprietary formulation Gemini. We have multiple ongoing programs to evaluate Gemini, including GEM-AKI as a prevention for acute kidney injury (“AKI”), GEM-CKD as a treatment for chronic kidney disease (“CKD”), and GEM-PSI as a prevention for post surgical infection (“PSI”). The Company was incorporated in the state of Delaware on November 20, 2019 (originally as Petra Acquisition, Inc.) and is based in San Diego, California. Our common stock and warrants sold in our initial public offering (“Public Warrants”) are listed on The Nasdaq Stock Market, LLC (“Nasdaq”) under the ticker symbol “REVB” and “REVBW,” respectively. Recent Developments 2025 Reverse Stock Split
12. Segment Information ASC 280, “Segment Reporting,” establishes standards for reporting information about operating segments. Operating segments are defined as components of an enterprise about which separate discrete financial information is available that is evaluated regularly by the chief operating decision maker (“CODM”) in deciding how to allocate resources and in assessing performance. The Company and the Company’s CODM view the Company’s operations and manage its business on the basis of one reportable segment, which is focused on the prevention and treatment of disease by developing and commercializing therapeutics that modulate the innate immune system (see Note 1 for a brief description of the Company’s business). The CODM of the Company is the Chief Executive Officer.
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Pharmaceuticals

PBM Core

Annual filing released 2025-06-25 · GPT 6 Luna

We strive to set the global standard for excellence and consistency in drug development using nature-based psilocybin products. Psyence’s priority is developing pharmaceutical grade psilocybin to help heal psychological trauma and the diagnosable disorders that can result therefrom, including AjD, alcohol use disorder (“AUD”), other substance use disorders (“SUDs”), anxiety, depression, post-traumatic stress disorder (“PTSD”), and grief and bereavement, especially in the context of palliative care. Our focus includes therapeutic protocols for medical and scientific research including observational studies.
Psyence Biomedical Ltd. (the “Company” or “PBM”), is the world’s first life science biotechnology company traded on Nasdaq (NASDAQ: PBM) that is focused on the development of botanical (nature derived, or non-synthetic) psilocybin-based psychedelic medicines. The Company is working towards developing safe and effective, nature-derived psychedelic therapeutics to treat a broad range of mental health disorders. The Company is initially focused on mental health disorders in the context of Palliative Care. The Company is currently conducting research through clinical trials to evaluate the safety and effectiveness of natural psilocybin in treating adjustment disorder in patients with a cancer diagnosis in a palliative care context. 56 Operating Results Sales and marketing costs
Read the annual filing ↗

REVB Core

Annual filing released 2025-03-06 · GPT 6 Luna

Our goal is to become a leading biopharmaceutical company focused on the development of therapeutics that modulate the immune system to prevent and treat conditions with significant unmet needs. The key components of our strategy are to: •Advance the development of Gemini for the prevention of acute kidney injury •Advance the development of Gemini for the treatment of chronic kidney disease •Advance the development of Gemini for the prevention and treatment of post surgical infection Our Corporate History and Team
12. Segment Information ASC 280, “Segment Reporting,” establishes standards for reporting information about operating segments. Operating segments are defined as components of an enterprise about which separate discrete financial information is available that is evaluated regularly by the chief operating decision maker (“CODM”) in deciding how to allocate resources and in assessing performance. The Company and the Company’s CODM view the Company’s operations and manage its business on the basis of one reportable segment, which is focused on the prevention and treatment of disease by developing and commercializing therapeutics that modulate the innate immune system (see Note 1 for a brief description of the Company’s business). The CODM of the Company is the Chief Executive Officer.
Read the annual filing ↗

Immunotherapy

PBM Not tagged

Annual filing released 2025-06-25 · GPT 6 Luna

This activity has no positive tag in the selected filing snapshot.

Read the annual filing ↗

REVB Core

Annual filing released 2025-03-06 · GPT 6 Luna

Our current therapeutic candidates are all based on our proprietary Gemini formulation of PHAD®, a synthetic version of monophosphoryl lipid A (“MPLA”), that is known to stimulate TLR4. Stimulation of TLR4 via Gemini leads to a more controlled production of varied cytokines and chemokines which modulate the activity of the innate and adaptive immune response, relative to a lipopolysaccharide, a traditional TLR4 agonist. This “Immunostimulatory Preconditioning” with Gemini prepares the body to better guard against a rapid upregulation of multiple pro-inflammatory and microbial gene products and proteins, such as pathogen-associated molecular patterns (“PAMPS”) and damage-associated molecular patterns (“DAMPS”) (damage-associated molecular proteins) (Zwirner 2017, Hernandez 2019, Ismaeli 2002).
Modulated activities may include stimulation and recruitment of infection fighting immune cells, reduction of inflammation, and/or regulation of inflammation depending on the degree and nature of the stimulation, which enables the multiple potential product candidates in development. 2 Figure 1: Interaction of PHAD with TLR4 Gemini-AKI The Gemini-AKI program is being developed as a potential therapy for the prevention of AKI due to external stress or insult (e.g. surgical procedure, chemotherapy toxicity). We believe immunologic preconditioning with Gemini prepares the body to handle biologic stress by redirecting the body’s immune system to have an attenuated response to the stress.
Read the annual filing ↗
What each company does

Compare the businesses

Psyence Biomedical Ltd. Common Shares

PBM · XNAS

Psyence Biomedical Ltd. engages in the development of botanical psilocybin-based psychedelic medicines. It also evaluates natural psilocybin for the treatment of adjustment disorder in patients with an incurable cancer diagnosis in a palliative care context. The company's lead product candidate is PEX010, which is in Phase IIb clinical study, a capsule containing naturally sourced psilocybin for treatment of anxiety and depression, including associated ailments, such as post-traumatic stress disorder PTSD, stress, grief, and adjustment disorder in the context of palliative care. It has a partnership with iNGENu Pty Ltd to conduct a Phase IIb clinical trial of PEX010 in psilocybin-assisted psychotherapy for the treatment of AjD due to incurable cancer. The company has a strategic collaboration with PsyLabs to produce Ibogaine. The company is based in Toronto, Canada. Psyence Biomedical Ltd. operates as a subsidiary of Psyence Group Inc.

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Revelation Biosciences, Inc. Common Stock

REVB · XNAS

Revelation Biosciences, Inc. operates as a clinical-stage biopharmaceutical company that focuses on the development and commercialization of immune system therapeutics and diagnostics. It engages in developing therapeutic product candidates, including GEM-AKI, a potential therapy for the prevention and treatment of acute kidney injury; and GEM-CKD, a potential therapy for the prevention and treatment of chronic kidney disease. The company was formerly known as Petra Acquisition, Inc. and changed its name to Revelation Biosciences, Inc. in January 2022. Revelation Biosciences, Inc. was incorporated in 2019 and is based in San Diego, California.

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Financial data

Fundamentals side by side

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Show fundamentals table · 11 rows, 3 columns
MetricPBMREVB
ExchangeXNASXNAS
SectorHealthcareHealthcare
IndustryBiotechnologyBiotechnology
Market observation2026-10-162026-10-16
Closing price (USD)$4.22$0.48
Market cap (USD)$16.10M$1.93M
P/E (TTM)UnavailableUnavailable
Latest annual period2026-03-312025-12-31
Revenue (annual, USD)UnavailableUnavailable
Net income (annual, USD)$-6.94M$-8.91M
Gross margin (annual)UnavailableUnavailable

USD values from stored observations. Fiscal period endings and availability dates may differ.

PBM period ended 2026-03-31 · available 2026-06-22 · SEC filing ↗REVB period ended 2025-12-31 · available 2026-02-26 · SEC filing ↗

Related stock comparisons

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Behind the comparison

Sources and methodology

Price return uses split-adjusted daily closes and excludes dividends. Both stocks start on the first shared trading day within the selected window. Unavailable metrics leave gaps.

Financials use SEC canonical statements available by the displayed cutoff, retaining each company's fiscal period end. Annual and quarterly amounts are shown separately. P/E is unavailable when earnings do not support a positive ratio.

Business overlap uses industry tags from annual filings released in 2025. Each core activity receives full weight; each material activity receives one quarter of that weight. Rarer industries carry more weight. We sum the smaller exposure for each shared activity and divide it by the sum of the larger exposure for every activity in either company. This measures business overlap, rather than price correlation or expected returns.

Search eligibility requires distinct issuers, a shared core category and at least 20% weighted overlap, supported by industry or sector evidence and specific business activities. Broad classifications require stronger overlap within the same sector. Comparisons also need at least 252 shared price observations within two years, recent trading and a common sourced revenue or net-income trend. Missing P/E or gross margin alone does not exclude a comparison. The eligibility snapshot refreshes daily. Related comparisons use a separate, stricter peer rule; their ten-peer discovery limit does not limit search eligibility. Other stock pairs remain available in the comparison tool.

Statements available through 2026-10-18. Industry snapshot: 2025-12-31 · 5,721 classified issuers.

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