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Companies / Healthcare / Nautilus Biotechnology, Inc.
NAUT

Nautilus Biotechnology, Inc.

HealthcareMedical Instruments
Ticker NAUTSEATTLE, WAFiscal year ends DecemberBook value per share $1.03Diluted shares 126.9M

Nautilus Biotechnology, Inc. (Nasdaq: NAUT) is a development-stage life sciences company focused on creating a platform technology to quantify and unlock the complexity of the proteome. The company was formed through a business combination in June 2021 between ARYA Sciences Acquisition Corp III and Legacy Nautilus… From the company’s description.

Fiscal year 2025 · ends 12-31Changes are against fiscal 2024The amber dot is the latest twelve months, to 2026-06-30
Sales & profitability
—
0.00%
$-59.00M
+16.6% year over year
Last 12 mo $-56.52M
-37.59%
−3.7 percentage points
Last 12 mo -43.11%
Cash & financing
$-50.70M
+14.3% year over year
Last 12 mo $-50.23M
$-51.97M
+15.2% year over year
Last 12 mo $-51.86M
—
126.3M
+0.7% year over year
Last 12 mo 126.9M

Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.

What Nautilus Biotechnology, Inc. does

In the company’s own words

Nautilus Biotechnology, Inc. (Nasdaq: NAUT) is a development-stage life sciences company focused on creating a platform technology to quantify and unlock the complexity of the proteome. The company was formed through a business combination in June 2021 between ARYA Sciences Acquisition Corp III and Legacy Nautilus Biotechnology, Inc., and began trading on the Nasdaq Global Select Market before transferring to the Nasdaq Capital Market in October 2025.

The company's core offering is the Nautilus Voyager platform, an integrated proteomics analysis system designed to implement the company's proprietary Iterative Mapping methodology. This single-molecule proteomic analysis platform integrates nanofabricated protein arrays, affinity reagent probing, advanced optics and fluidics, and machine learning-based analysis into an end-to-end workflow that includes instrumentation, consumables, and software. The Nautilus Voyager platform is designed to enable both broadscale proteome analysis, which identifies and quantifies a large proportion of proteins expressed in biological samples, and targeted proteoform analysis, which resolves specific protein forms and modifications that reflect functional complexity.

Nautilus addresses longstanding limitations in existing proteomics technologies, which typically require researchers to make trade-offs between breadth, depth, throughput, and reproducibility. The company believes its approach can identify and quantify approximately 95 percent of the entire proteome, including proteoforms arising from post-translational modifications. The platform generates digital protein counts designed to support consistent comparison across samples, experiments, and time.

The company employs a phased commercialization strategy beginning with research collaborations with leading biopharma companies, academic institutions, and research organizations including Genentech, the Michael J. Fox Foundation, Weill Cornell Medicine-Qatar, and The Buck Institute for Research on Aging. In January 2026, Nautilus launched its Iterative Mapping Early Access Program, providing select customers with standardized applications through Nautilus Proteomics Analysis Services.

The global proteomics market is projected to reach approximately $57 billion by 2030, representing a compound annual growth rate of approximately 13 percent. Nautilus' team combines expertise in chemistry, molecular biology, nanofabrication, engineering, machine learning, and software, with over one-third of employees holding Ph.D. degrees. The company maintains operations at its San Carlos, California facility and has established manufacturing processes combining external contract manufacturing with internal capabilities.

Company details
Sector
Healthcare
Industry
Medical Instruments
Headquarters
SEATTLE, WA
Fiscal year end
December
CIK
1808805
SIC
3826

Financial performance, year by year

Fiscal 2021–2025 · USD
$-72.83M$-66.69M$-60.55M$-54.41M$-48.27M20212022202320242025Last 12 moLast 12 months

The full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.

Ownership

Who owns Nautilus Biotechnology, Inc. — and what changed

Funds as of 2026Q2 · superinvestors as of 2026-06-30

58
funds hold it
0 of 35
superinvestors hold it
$12.02M
held by funds, at market
4.8%
of shares held by funds

Largest fund holders · Nautilus Biotechnology, Inc.’s weight in each

VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.00%of fund net assets
iShares Russell 2000 ETF
IWM · iShares Trust
0.00%of fund net assets
VANGUARD EXTENDED MARKET INDEX FUND
VXF · VANGUARD INDEX FUNDS
0.00%of fund net assets
iShares Russell 2000 Value ETF
IWN · iShares Trust
0.00%of fund net assets
Fidelity Extended Market Index Fund
FSMAX · Fidelity Concord Street Trust
0.00%of fund net assets

Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.

Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.

Could not be determined for this company: bond issues.

Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.

Connected research

Put this business in context.

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