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Companies / Health Care / Aura Biosciences, Inc.
AURA

Aura Biosciences, Inc.

Health CareBiological Products
Ticker AURABOSTON, MAFiscal year ends DecemberBook value per share $3.88Diluted shares 81.2M

Aura Biosciences (Nasdaq: AURA) is a clinical-stage biotechnology company developing precision therapies for solid tumors, with an initial focus on ocular and urologic cancers. Its lead candidate, belzupacap sarotalocan (bel-sar), is a virus-like drug conjugate designed to target tumor cells and, when activated by… From the company’s description.

In fiscal 2025, Aura Biosciences, Inc. reported a net loss of $106.19M. Operations used $84.74M in cash.

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%FY2025
$-106.19MFY2025
−22.2% year over year
Last 12 mo $-131.01M
-77.56%FY2025
−20.4 percentage points
Last 12 mo -41.56%
Cash & financing
$-84.74MFY2025
−6.2% year over year
Last 12 mo $-103.01M
$-85.19MFY2025
−5.1% year over year
Last 12 mo $-103.35M
—
60.3MFY2025
+21.5% year over year
Last 12 mo 81.2M

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 Aura Biosciences, Inc. does

In the company’s own words

Aura Biosciences (Nasdaq: AURA) is a clinical-stage biotechnology company developing precision therapies for solid tumors, with an initial focus on ocular and urologic cancers. Its lead candidate, belzupacap sarotalocan (bel-sar), is a virus-like drug conjugate designed to target tumor cells and, when activated by light, induce cell death and an immune response. Bel-sar is in a global Phase 3 trial for early choroidal melanoma and is also being studied for metastases to the choroid, cancers of the ocular surface, and non-muscle-invasive bladder cancer. The company’s development programs aim to treat tumors while preserving vision or organ function; it has not yet commercialized a pharmaceutical product. Its research and development pipeline centers on bel-sar, which combines modified human papillomavirus capsid proteins with light-activated molecules. Aura Biosciences was developing this candidate across several clinical indications as of fiscal 2025. Its website is https://aurabiosciences.com.

Company details
Sector
Health Care
Industry (SIC)
Biological Products
Headquarters
BOSTON, MA
Fiscal year end
December
CIK
1501796
SIC
2836

Financial performance, year by year

Fiscal 2021–2025 · USD
$-140.59M$-111.86M$-83.13M$-54.40M$-25.67M20212022202320242025Last 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 Aura Biosciences, Inc. — and what changed

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

133
funds hold it
0 of 35
superinvestors hold it
$78.45M
held by funds, at market
10.6%
of shares held by funds

Largest fund holders · Aura Biosciences, 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
0.01%of fund net assets
VANGUARD EXTENDED MARKET INDEX FUND
VXF · VANGUARD INDEX FUNDS
0.01%of fund net assets
Franklin Biotechnology Discovery Fund
FBDIX · Franklin Strategic Series
—of fund net assets
Fidelity Extended Market Index Fund
FSMAX · Fidelity Concord Street Trust
—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

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