ASP Isotopes Ownership | Who Owns ASP Isotopes?


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ASP Isotopes Ownership Summary


ASP Isotopes is owned by 54.70% institutional investors, 11.08% insiders, and 34.22% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 7.62% of ASPI shares. Vanguard Morn Total Stk Mkt Idx Investor is the top mutual fund, with 2.85% of its assets in ASP Isotopes shares.

ASPI Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockASP Isotopes54.70%11.08%34.22%
SectorBasic Materials Stocks 58.82%12.62%28.56%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de9.22M7.62%$57.33M
Vanguard group6.41M7.23%$34.27M
Encompass capital advisors6.56M5.42%$40.81M
Vanguard capital management4.98M4.12%$30.99M
Rovida investment management4.10M3.39%$25.50M
Ubs group3.25M2.68%$20.20M
Geode capital management2.95M2.43%$18.33M
Alyeska investment group2.84M2.35%$17.69M
State street2.60M2.15%$16.14M
Driehaus capital management1.42M1.94%$13.66M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Rovida investment management4.10M1.74%$25.50M
Philadelphia financial management of san francisco1.34M1.68%$8.35M
Encompass capital advisors6.56M1.45%$40.81M
Southport management30.00K1.19%$288.60K
Wim investment management541.40K1.10%$3.37M
Awm investment company1.58M0.85%$9.84M
Diametric capital, lp538.52K0.35%$3.35M
Olympiad research lp18.61K0.24%$115.73K
Fny investment advisers80.10K0.18%$498.00K
Shay capital413.00K0.17%$2.57M

Top Buyers

HolderShares% AssetsChange
Vanguard group6.41M0.00%1.89M
Sixth street partners management company935.35K0.00%935.35K
Blackrock funding, inc. /de9.22M0.00%889.05K
Marshall wace, llp835.66K0.00%835.66K
Man group828.38K0.01%828.38K

Top Sellers

HolderShares% AssetsChange
Rovida advisors---2.20M
Capital research global investors---2.04M
Telemark asset management---825.00K
Jane street group21.09K--663.38K
Sara-bay financial---586.67K

New Positions

HolderShares% AssetsChangeValue
Sixth street partners management company935.35K0.00%935.35K$5.82M
Man group828.38K0.01%828.38K$5.15M
Concentric capital strategies, lp218.05K0.09%218.05K$2.10M
Aquatic capital management163.98K0.04%163.98K$1.02M
Point72 asset management120.16K0.00%120.16K$747.39K

Sold Out

HolderChange
Root financial partners-26.00
Mai capital management-28.00
Parkside financial bank & trust-105.00
Advisornet financial-120.00
Federated hermes-129.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 20261993.65%66,183,7283.67%541.96%115-7.26%5130.77%
Mar 31, 2026188-58,990,4840.74%711.63%122-2.40%38-2.56%
Dec 31, 202543-75.00%17,565,242-66.80%190.38%34-70.18%4-87.50%
Sep 30, 202547-67.13%11,223,896-74.27%150.39%27-72.16%12-45.45%
Jun 30, 202513934.95%43,501,04834.24%621.85%9360.34%22-12.00%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Morn Total Stk Mkt Idx Investor3.59M2.85%-
Vanguard Total Stock Mkt Idx Inv3.59M2.85%-
Vanguard MStar Total Stk Mkt Idx Invest3.59M2.76%-
iShares Russell 2000 ETF2.98M2.36%-52.90K
Range Nuclear Renaissance ETF2.19M1.74%-
BNP Clean Energy Solutions C D1.40M1.12%404.30K
Vanguard Institutional Extnd Mkt Idx Tr1.27M0.98%2.52K
Fidelity Small Cap Index1.14M0.91%17.83K
iShares Russell 2000 Growth ETF882.00K0.70%-8.08K
American Beacon GLG Natrl Res ETF839.37K0.67%316.98K

Recent Insider Transactions


DateNameRoleActivityValue
Sep 02, 2026Ainscow Donald George EVP, Gen Counsel, SecretarySell$92.11K
Sep 02, 2026Ainscow Robert COOSell$97.63K
Sep 03, 2026Mann Paul Elliot Chairman and CEOSell$328.33K
Sep 02, 2026Mann Paul Elliot Chairman and CEOSell$327.49K
Sep 04, 2026Mann Paul Elliot Chairman and CEOSell$343.41K

Insider Transactions Trends


DateBuySell
2026 Q3-6
2026 Q2-11
2026 Q1-3
2025 Q4-8
2025 Q3-6

ASPI Ownership FAQ


Who owns the most shares of ASP Isotopes?

ASP Isotopes’s largest shareholders are Blackrock funding, inc. /de (9.22M shares, 7.62%), Vanguard group (6.41M shares, 7.23%), and Encompass capital advisors (6.56M shares, 5.42%). Together, they hold 20.27% of ASP Isotopes’s total shares outstanding.

Does Blackrock own ASP Isotopes?

BlackRock is not among the top 10 institutional shareholders of ASP Isotopes.

Who is ASP Isotopes’s biggest shareholder by percentage of total assets invested?

Rovida investment management is ASP Isotopes’s biggest shareholder by percentage of total assets invested, with 1.74% of its assets in 4.1M ASP Isotopes shares, valued at 25.5M$.

Who is the top mutual fund holder of ASP Isotopes shares?

Vanguard Morn Total Stk Mkt Idx Investor is the top mutual fund holder of ASP Isotopes shares, with 2.85% of its total shares outstanding invested in 3.59M ASP Isotopes shares.

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