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Companies / Health Care / Passage BIO, Inc.
PASG

Passage BIO, Inc.

Health CareBiological Products
Ticker PASGPHILADELPHIA, PAFiscal year ends DecemberBook value per share $1.39Diluted shares 3.2M

Passage Bio, Inc. (Nasdaq: PASG) is a clinical-stage genetic medicines company developing one-time gene therapies for neurodegenerative diseases. Its lead candidate, PBFT02, uses an AAV1 vector to deliver a functional GRN gene and raise progranulin levels in the central nervous system; it is being studied in a Phase… From the company’s description.

In fiscal 2025, Passage BIO, Inc. reported a net loss of $45.52M. Operations used $31.51M 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
$-45.52MFY2025
+29.7% year over year
Last 12 mo $-36.11M
-242.72%FY2025
−137 percentage points
Last 12 mo -810.41%
Cash & financing
$-31.51MFY2025
+34.3% year over year
Last 12 mo $-33.50M
$-31.51MFY2025
+34.3% year over year
Last 12 mo $-33.50M
—
3.2MFY2025
−94.7% year over year
Last 12 mo 3.2M

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 Passage BIO, Inc. does

In the company’s own words

Passage Bio, Inc. (Nasdaq: PASG) is a clinical-stage genetic medicines company developing one-time gene therapies for neurodegenerative diseases. Its lead candidate, PBFT02, uses an AAV1 vector to deliver a functional GRN gene and raise progranulin levels in the central nervous system; it is being studied in a Phase 1/2 trial for frontotemporal dementia caused by GRN mutations and in a trial cohort for FTD associated with C9orf72 mutations. The company is also evaluating PBFT02 for potential use in amyotrophic lateral sclerosis and Alzheimer’s disease. Through a collaboration with Gemma Biotherapeutics, Passage Bio is conducting preclinical research on an AAV-based genetic medicine for Huntington’s disease and may license programs for four additional central nervous system indications. It has sublicensed three pediatric programs previously advanced to clinical development to Gemma. Passage Bio relies on third-party manufacturers for clinical product supply, with internal manufacturing and quality teams overseeing external operations.

Company details
Sector
Health Care
Industry (SIC)
Biological Products
Headquarters
PHILADELPHIA, PA
Fiscal year end
December
CIK
1787297
SIC
2836

Financial performance, year by year

Fiscal 2020–2025 · USD
$-200.31M$-155.53M$-110.75M$-65.97M$-21.18M202020212022202320242025Last 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 Passage BIO, Inc. — and what changed

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

14
funds hold it
0 of 35
superinvestors hold it
$0.78M
held by funds, at market
4.8%
of shares held by funds

Largest fund holders · Passage BIO, Inc.’s weight in each

VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.00%of fund net assets
VANGUARD EXTENDED MARKET INDEX FUND
VXF · VANGUARD INDEX FUNDS
0.00%of fund net assets
Fidelity Extended Market Index Fund
FSMAX · Fidelity Concord Street Trust
—of fund net assets
Fidelity Total Market Index Fund
FSKAX · Fidelity Concord Street Trust
—of fund net assets
Fidelity Series Total Market Index Fund
FCFMX · 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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