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Nautilus Biotechnolgy (NAUT) Stock Price, News & Analysis

NAUT NASDAQ
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Price Move History

Daily moves over 5%
94 252 sessions, October 9, 2025 to October 9, 2026
Largest daily move
+39.1% close of November 3, 2025
1-year change
+150% closing prices, October 9, 2025 to October 9, 2026
1-month change
+100.9% closing prices, September 9, 2026 to October 9, 2026

Company Description

Nautilus Biotechnology, Inc. (NASDAQ: NAUT) is a development stage life sciences company focused on creating a platform technology for quantifying and unlocking the complexity of the human proteome. The company describes its mission as transforming the field of proteomics by democratizing access to the proteome and enabling fundamental advancements across human health and medicine. Nautilus is categorized in analytical laboratory instrument manufacturing within the broader manufacturing sector and is developing tools and methods for single-molecule protein analysis.

According to the company, Nautilus is pioneering a single-molecule proteome analysis platform built around its Iterative Mapping method. This approach is designed to enable single-molecule analysis of proteins and proteoforms and to achieve comprehensive proteome coverage and detail at scale. By precisely mapping combinatorial patterns of post-translational modifications on individual proteins, Nautilus aims to help researchers study how those patterns evolve over the course of diseases, including Alzheimer’s and other neurodegenerative disorders.

Nautilus states that its platform is being developed as a proteome analysis system supported by reagent kits and software and analysis offerings. The company refers to this as the Nautilus Proteome Analysis Platform. Its work emphasizes the generation of reproducible, high-quality proteomic data with resolution and scale that it describes as differentiating its approach from conventional proteomics methods such as traditional affinity-based techniques and mass spectrometry.

Business focus and technology

Nautilus positions itself as a development stage company, indicating that its product platform is not yet fully commercially available and remains subject to scientific and technical development and validation. The company’s disclosures highlight that its platform requires substantial validation of functionality and utility in life science research, and that development and commercialization timelines may be influenced by scientific, technical, and operational factors.

The company’s Iterative Mapping method is central to its strategy. Nautilus describes this method as enabling analysis of millions to billions of single-protein molecules in a scalable and adaptable manner. In public communications, Nautilus has highlighted a tau proteoforms assay as a key early application of its platform. This assay is designed to quantify large numbers of tau proteoform groups and to provide high-resolution analysis of protein modifications that may influence disease progression in neurodegenerative conditions.

Nautilus has reported that its platform is intended to support both targeted proteoform analyses and broader-scale proteomics capabilities. The company has emphasized attributes such as accuracy, sensitivity, dynamic range, reproducibility, and sample compatibility as important performance characteristics for its tau proteoform assay and broader platform.

Collaborations and early external use

Nautilus has described collaborations with research institutions as part of its development and validation strategy. The company has reported an ongoing collaboration with the Buck Institute for Research on Aging, where its first external field evaluation unit was installed and tested. Researchers at the Buck Institute have used the Nautilus single-molecule proteomics instrument and tau proteoform assay to analyze neurodegenerative disease samples and to explore region-specific proteoform patterns associated with disease progression.

Nautilus has also announced an agreement with the Allen Institute focused on investigating the connection between tau protein and neurodegenerative conditions such as Alzheimer’s disease. Under this agreement, Nautilus and the Allen Institute aim to identify novel tau proteoforms from human brain tissue, quantify their prevalence, and characterize phosphorylation patterns that may relate to disease course. The company has also referenced a preprint titled “Development of a method for large-scale single-molecule analysis of tau proteoforms,” which describes real-world capabilities of its platform for analyzing brain samples from cognitively normal and impaired patients with Alzheimer’s.

Early Access Program and commercialization pathway

Nautilus has announced an Early Access Program for its proteomics platform, with a tau proteoforms assay as the first offering. This program makes the company’s Iterative Mapping approach available to an exclusive group of researchers and is described as a milestone in its path to commercialization. Participants in the Early Access Program receive access to a validated tau proteoforms assay and support from Nautilus for data interpretation, quantification, and analysis. The company has indicated that the program is intended to demonstrate platform readiness for external use and to support future capabilities, including additional targeted proteoform analyses and broadscale proteomics.

In its public statements, Nautilus has linked the Early Access Program and external field evaluation units to its broader goal of enabling independent research laboratories to use its single-molecule proteomics platform. The company has also noted that it pursues exclusive development partnerships within the Early Access Program to support creation of custom assays tailored to specific research applications, particularly in areas such as Alzheimer’s and other neurodegenerative diseases.

Corporate structure and listing

Nautilus Biotechnology, Inc. reports that it has its corporate headquarters in Seattle, Washington and its research and development headquarters in San Carlos, California. The company’s common stock, with par value $0.0001 per share, trades on The Nasdaq Stock Market LLC under the symbol NAUT. In regulatory filings, Nautilus has identified itself as an emerging growth company under applicable securities regulations.

In a Form 8-K, Nautilus disclosed that it received a notice from Nasdaq’s Listing Qualifications staff in 2025 indicating that the company had not met the minimum bid price requirement for continued listing on the Nasdaq Global Select Market. The company was granted a compliance period and subsequently transferred to The Nasdaq Capital Market. In a later Form 8-K, Nautilus reported that it had regained compliance with Nasdaq’s minimum bid price rule after its closing bid price met or exceeded $1.00 per share for a minimum of ten consecutive business days, and that Nasdaq considered the matter closed.

Financial reporting and development stage profile

Nautilus regularly reports its financial results through quarterly press releases and corresponding Form 8-K filings. These disclosures characterize the company as a development stage life sciences business focused on building and validating its proteome analysis platform. The company has described its operating expenses primarily in terms of research and development and general and administrative costs, and it has reported net losses consistent with an early-stage technology development profile.

In its forward-looking statements and risk factor references, Nautilus emphasizes that its product platform is not yet commercially available and that it may experience material delays in development, validation, and commercialization due to unanticipated events. The company notes that it cannot provide guarantees or assurances regarding the outcome or timing of its development, collaboration, and commercialization initiatives.

Industry context and applications

Within the analytical laboratory instrument manufacturing and proteomics space, Nautilus positions its platform as a next-generation single-molecule protein analysis system. The company contrasts its Iterative Mapping approach with traditional affinity-based methods and mass spectrometry, describing its technology as offering a different way to measure and understand proteins and proteoforms at scale. Its initial applications, as described in public communications, are focused on tau proteoforms and neurodegenerative disease biology, with the intention of supporting research into mechanisms underlying Alzheimer’s disease and related conditions.

Nautilus’ stated mission to democratize access to the proteome suggests an emphasis on making high-resolution proteomic data more broadly available to researchers. Through collaborations, early external instrument deployments, and the Early Access Program, the company seeks to generate validation data, scientific publications, and real-world use cases for its platform in human health and disease research.

Products and offerings as described

Based on available information, Nautilus’ offerings center on:

  • Proteome Analysis System: A single-molecule proteomics instrument referred to as the Nautilus Proteome Analysis Platform, designed to implement the Iterative Mapping method.
  • Reagent Kits: Reagents that support operation of the platform, including a proprietary tau proteoform assay developed to quantify large numbers of tau proteoform groups.
  • Software and analysis: Software and analysis tools that support data acquisition, quantification, and interpretation from the Nautilus platform.

The company’s communications indicate that these components are being refined and validated through internal work and external collaborations, with the aim of enabling researchers to conduct targeted and broadscale proteomic studies.

Position within life sciences research

Nautilus presents its platform as relevant to pharmaceutical development, biomarker discovery, and broader biological research, particularly where detailed characterization of proteoforms and post-translational modifications is important. While the company’s early focus has been on tau and neurodegenerative disease, its public statements reference broader potential applications across human health and medicine as its platform and assay portfolio develop.

Key considerations for investors and researchers

For investors, Nautilus represents a development stage company in the life sciences tools and proteomics sector, with a focus on technology development, validation, and early external deployment rather than mature commercial operations. For researchers, the company’s platform and Early Access Program may be of interest for projects that require high-resolution, single-molecule analysis of proteins and proteoforms, particularly in complex disease areas such as Alzheimer’s and aging-related neurodegeneration.

Stock Performance

$2.25
+23.63%
+0.43
Last updated: October 9, 2026 at 19:59
+150%
Performance 1 year
$286.3M

Nautilus Biotechnolgy (NAUT) closed at $2.25 on October 9, 2026. Over the past 12 months, the price has gained 150.0%.

See what a $1,000 investment in NAUT would be worth today

NAUT Metrics & Rankings

Price returns through October 9, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.

Financial Highlights

net income was -$59.0M. Diluted earnings per share stood at -$0.47. The company generated -$50.7M in operating cash flow. The current ratio was 13.33, measuring current assets divided by current liabilities.

-$59.0M
Net Income (FY2025)
-$50.7M
Operating Cash Flow
—
Revenue (FY2025)

Upcoming Events

JAN
01
January 1, 2027 - April 30, 2027 Product

Voyager pre-orders launch

Pre-orders expected early 2027 for the Voyager proteoform assays and platform; availability window Jan 1–Apr 30, 2027.
MAY
01
May 1, 2027 - August 31, 2027 Product

Voyager instrument shipments

Instrument shipments and consumable kits anticipated beginning mid 2027 for the Voyager platform; window May 1–Aug 31, 2027.
MAY
01
May 1, 2028 - August 31, 2028 Product

Proteoform Assays Roadmap

Roadmap toward roughly 20 proteoform assays by mid-2028 (May–Aug 2028 window), indicating product pipeline expansion for Nautilus.

Nautilus Biotechnolgy has 3 upcoming scheduled events. The next event, "Voyager pre-orders launch", is scheduled for January 1, 2027 (in 80 days). Investors can track these dates to stay informed about potential catalysts that may affect the NAUT stock price.

Short Interest History

Last 12 Months

Short interest in Nautilus Biotechnolgy (NAUT) currently stands at 4.1 million shares, up 7.0% from the previous reporting period, representing 5.5% of the float. Since October 2025, short interest has increased by 2164.1%.

Days to Cover History

Last 12 Months

Days to cover for Nautilus Biotechnolgy (NAUT) currently stands at 3.2 days, down 49.7% from the previous period. The ratio is the reported short interest divided by the average daily trading volume. Since October 2025, the figure has increased by 224%. Across the settlements charted above, it has ranged from 1.0 to 6.4 days.

NAUT Company Profile & Sector Positioning

Nautilus Biotechnolgy (NAUT) operates in the Biotechnology industry within the broader Healthcare sector and is listed on the NASDAQ.

Investors comparing NAUT often look at related companies in the same sector, including IMMUNOPRECISE ANTIBODIES LTD (IPA), Champions Oncology, Inc. (CSBR), Quince Therapeutics, Inc. (QNCX), Seer, Inc. (SEER), and eXoZymes Inc. (EXOZ). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate NAUT's relative position within its industry.

Frequently Asked Questions

What is the current stock price of Nautilus Biotechnolgy (NAUT)?

The current stock price of Nautilus Biotechnolgy (NAUT) is $2.25 as of October 9, 2026.

What is the market cap of Nautilus Biotechnolgy (NAUT)?

The market cap of Nautilus Biotechnolgy (NAUT) is approximately $286.3M. Learn more about what market capitalization means .

What is the net income of Nautilus Biotechnolgy (NAUT)?

The FY2025 net income of Nautilus Biotechnolgy (NAUT) is -$59.0M, from its most recent completed fiscal year.

What is the earnings per share (EPS) of Nautilus Biotechnolgy (NAUT)?

The diluted earnings per share (EPS) of Nautilus Biotechnolgy (NAUT) is -$0.47 for FY2025, its most recent completed fiscal year. Learn more about EPS .

What is the operating cash flow of Nautilus Biotechnolgy (NAUT)?

The operating cash flow of Nautilus Biotechnolgy (NAUT) is -$50.7M. Learn about cash flow.

What is the current ratio of Nautilus Biotechnolgy (NAUT)?

The current ratio of Nautilus Biotechnolgy (NAUT) is 13.33, measuring current assets divided by current liabilities. Learn about liquidity ratios.

What does Nautilus Biotechnology, Inc. do?

Nautilus Biotechnology, Inc. is a development stage life sciences company working to create a platform technology for quantifying and unlocking the complexity of the proteome. The company is developing a single-molecule proteome analysis platform, referred to as the Nautilus Proteome Analysis Platform, to support high-resolution protein and proteoform measurement for human health and medicine research.

How does Nautilus describe its core technology?

Nautilus describes its core technology as a single-molecule proteome analysis platform based on an Iterative Mapping method. This method is designed to enable single-molecule analysis of proteins and proteoforms, providing comprehensive proteome coverage and detail at scale and allowing researchers to map combinatorial patterns of post-translational modifications on individual proteins.

What products and components does Nautilus mention for its platform?

Nautilus states that its offerings include a Proteome Analysis System, reagent kits, and software and analysis tools. Together, these components form the Nautilus Proteome Analysis Platform, which is being developed to generate reproducible, high-quality proteomic data for research applications.

Which diseases and research areas are early focuses for Nautilus’ platform?

In its public communications, Nautilus has focused on tau proteoforms and neurodegenerative diseases, particularly Alzheimer’s disease. The company’s tau proteoforms assay and collaborations with institutions such as the Buck Institute for Research on Aging and the Allen Institute are aimed at studying disease-associated protein modifications and their relationship to neurodegeneration and cognitive decline.

What is Nautilus’ Early Access Program?

Nautilus has launched an Early Access Program that provides an exclusive group of researchers with access to its proteomics platform, starting with a validated tau proteoforms assay. Participants receive use of the Iterative Mapping method and support from Nautilus for data interpretation, quantification, and analysis, and the program is described as a key milestone on the company’s path to commercialization.

How is Nautilus’ platform being validated externally?

Nautilus reports that its first external field evaluation unit was installed and tested at the Buck Institute for Research on Aging, where researchers generated tau proteoform data from neurodegenerative disease samples. The company has also highlighted a preprint describing large-scale single-molecule analysis of tau proteoforms and has entered into an agreement with the Allen Institute to further investigate tau proteoforms in human brain tissue.

Where is Nautilus Biotechnology headquartered?

Nautilus Biotechnology states that its corporate headquarters are in Seattle, Washington and its research and development headquarters are in San Carlos, California. These locations are referenced in the company’s press releases and public disclosures.

On which exchange does Nautilus Biotechnology’s stock trade and under what symbol?

Nautilus Biotechnology’s common stock trades on The Nasdaq Stock Market LLC under the symbol NAUT. The company’s Form 8-K filings list its common stock, par value $0.0001 per share, as registered under Section 12(b) of the Securities Exchange Act on Nasdaq.

What did Nautilus disclose about its Nasdaq listing compliance?

In a Form 8-K, Nautilus disclosed that it had received a notice from Nasdaq in 2025 indicating that it did not meet the minimum bid price requirement for continued listing on the Nasdaq Global Select Market and was granted a compliance period. The company later reported that it transferred to The Nasdaq Capital Market and subsequently regained compliance after its closing bid price met or exceeded $1.00 per share for at least ten consecutive business days.

How does Nautilus characterize the stage of its business and products?

Nautilus characterizes itself as a development stage life sciences company. In its press releases and forward-looking statements, the company notes that its product platform is not yet commercially available, remains subject to significant scientific and technical development, and requires substantial validation of its functionality and utility in life science research.