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Companies / Materials / ASP Isotopes Inc.
ASPI

ASP Isotopes Inc.

MaterialsChemicals
Ticker ASPIDALLAS, TXFiscal year ends DecemberBook value per share $2.17Diluted shares 121.9M

ASP Isotopes Inc. (Nasdaq: ASPI) develops isotope-enrichment technologies for materials used in nuclear medicine, pharmaceuticals, agrochemicals, semiconductors and nuclear energy. Its platforms are the Aerodynamic Separation Process and Quantum Enrichment technologies, with initial isotope products including… From the company’s description.

Over the twelve months to Jun 30, 2026, ASP Isotopes Inc. reported revenue of $30.85M, up 573.5% from a year earlier, and a net loss of $117.34M. Its operating margin was −321.1%, and operations used $67.80M in cash. In fiscal 2025, it reported revenue of $23.85M, up 475.5% from fiscal 2024, and a net loss of $159.84M.

Fiscal year 2025 · ends 12-31Changes are against fiscal 2024The amber dot is the latest twelve months, to 2026-06-30
Sales & profitability
$23.85MFY2025
+475.5% year over year
Last 12 mo $30.85M
-251.20%FY2025
+384.7 percentage points
Last 12 mo -321.12%
$-159.84MFY2025
−393.0% year over year
Last 12 mo $-117.34M
-78.30%FY2025
−10.6 percentage points
Last 12 mo -44.33%
Cash & financing
$-37.78MFY2025
−126.3% year over year
Last 12 mo $-67.80M
$-47.43MFY2025
−69.0% year over year
Last 12 mo $-83.58M
1.05FY2025
Was 0.76× a year earlier
Last 12 mo 1.00
83.0MFY2025
+49.1% year over year
Last 12 mo 121.9M

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 ASP Isotopes Inc. does

In the company’s own words

ASP Isotopes Inc. (Nasdaq: ASPI) develops isotope-enrichment technologies for materials used in nuclear medicine, pharmaceuticals, agrochemicals, semiconductors and nuclear energy. Its platforms are the Aerodynamic Separation Process and Quantum Enrichment technologies, with initial isotope products including carbon-14, silicon-28 and ytterbium-176; it also pursues development of nuclear fuels such as high-assay low-enriched uranium and lithium-6. The company operates through three reportable segments: Specialist Isotopes and Related Services, which includes radiopharmaceutical production and distribution through PET Labs; Nuclear Fuels, focused on advanced nuclear fuel development; and Construction Services, which performs public civil engineering work in Hong Kong. In January 2026, ASP Isotopes acquired Renergen, adding natural gas exploration and production, including liquefied natural gas and liquid helium, through South Africa’s Virginia Gas Project. Its isotope facilities include two aerodynamic enrichment plants and a laser-based enrichment facility in Pretoria, South Africa. Its website is https://aspisotopes.com/.

Company details
Sector
Materials
Industry (SIC)
Chemicals
Headquarters
DALLAS, TX
Fiscal year end
December
CIK
1921865
SIC
2890

Financial performance, year by year

Fiscal 2022–2025 · USD
$-178.91M$-121.70M$-64.50M$-7.29M$49.92M2022202320242025Last 12 moLast 12 monthsLast 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 ASP Isotopes Inc. — and what changed

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

111
funds hold it
1 of 35
superinvestors hold it
$122.06M
held by funds, at market
12.3%
of shares held by funds

Superinvestors in ASP Isotopes Inc. · what they did last quarter

Polen CapitalINCREASED +21.6%
Polen Capital Management
<0.1%of 13F portfolio

Share of each manager’s reported 13F portfolio. Change is in shares held, since the previous quarter.

Largest fund holders · ASP Isotopes 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
0.02%of fund net assets
Range Nuclear Renaissance Index ETF
NUKZ · EXCHANGE TRADED CONCEPTS TRUST
—of fund net assets
VANGUARD EXTENDED MARKET INDEX FUND
VXF · VANGUARD INDEX FUNDS
0.01%of fund net assets
Fidelity Small Cap Index Fund
FSSNX · Fidelity Salem 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”.

Fund ownership is a subset of institutional 13F ownership — the two describe overlapping populations and must not be added together.

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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