ASP Isotopes Ownership | Who Owns ASP Isotopes?


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ASP Isotopes Ownership Summary


ASP Isotopes is owned by 71.06% institutional investors, 13.05% insiders, and 15.89% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 10.03% of ASPI shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.94% of its assets in ASP Isotopes shares.

ASPI Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockASP Isotopes71.06%13.05%15.89%
SectorBasic Materials Stocks 41.27%13.22%45.51%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de8.33M10.03%$36.81M
Encompass capital advisors6.91M8.33%$30.55M
Vanguard group6.41M7.23%$34.27M
Rovida investment management4.10M4.63%$21.89M
Ubs group2.84M3.42%$12.56M
Geode capital management2.74M3.30%$12.12M
Alyeska investment group2.69M3.24%$11.90M
State street2.32M2.80%$10.26M
Exchange traded concepts2.18M2.63%$9.65M
Awm investment company2.12M2.56%$9.39M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Rovida investment management4.10M2.98%$21.89M
Southport management30.00K1.19%$288.60K
Diametric capital, lp953.50K1.10%$4.21M
Awm investment company2.12M1.04%$9.39M
Encompass capital advisors6.91M0.92%$30.55M
Philadelphia financial management of san francisco648.34K0.83%$2.87M
Wim investment management601.40K0.79%$2.66M
Sara-bay financial586.67K0.78%$2.59M
Alight capital management lp300.00K0.32%$1.33M
Fny investment advisers86.60K0.17%$382.00K

Top Buyers

HolderShares% AssetsChange
Encompass capital advisors6.91M0.92%6.91M
Vanguard group6.41M0.00%1.89M
Blackrock funding, inc. /de8.33M0.00%1.54M
Rovida investment management4.10M2.98%900.00K
Exchange traded concepts2.18M0.07%783.24K

Top Sellers

HolderShares% AssetsChange
Alyeska investment group2.69M0.03%-2.20M
Rovida advisors---2.20M
Capital research global investors---2.04M
Goldman sachs group526.79K0.00%-1.19M
Citadel advisors768.01K0.00%-957.55K

New Positions

HolderShares% AssetsChangeValue
Vanguard fiduciary trust753.32K0.00%753.32K$3.33M
Chicago partners investment group374.08K0.05%374.08K$2.10M
Alight capital management lp300.00K0.32%300.00K$1.33M
Yaupon capital management lp300.00K0.04%300.00K$1.33M
Concentric capital strategies, lp218.05K0.09%218.05K$2.10M

Sold Out

HolderChange
Quarry lp-34.00
Parkside financial bank & trust-105.00
Advisornet financial-120.00
Federated hermes-129.00
Rise advisors-193.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
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%
Mar 31, 20254-95.83%4,870,522-84.46%60.27%4-94.03%--100.00%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv3.70M2.94%-
iShares Russell 2000 ETF2.64M2.10%22.28K
Range Nuclear Renaissance ETF2.18M1.73%-
Vanguard Institutional Extnd Mkt Idx Tr1.26M1.00%6.73K
BNP Clean Energy Solutions C D999.93K0.79%249.86K
iShares Russell 2000 Growth ETF928.40K0.74%2.39K
Fidelity Small Cap Index906.11K0.72%8.63K
State St Russell Sm/Mid Cp® Indx SL Cl I665.58K0.53%-
Fidelity Extended Market Index595.79K0.47%20.68K
Vanguard Russell 2000 ETF573.99K0.46%14.74K

Recent Insider Transactions


DateNameRoleActivityValue
Jun 08, 2026Ainscow Robert COOSell$59.06K
Jun 03, 2026Mann Paul Elliot Chairman and CEOSell$649.97K
Jun 02, 2026Mann Paul Elliot Chairman and CEOSell$694.35K
Jun 01, 2026Mann Paul Elliot Chairman and CEOSell$660.01K
Apr 16, 2026Ainscow Robert COOSell$117.11K

Insider Transactions Trends


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

ASPI Ownership FAQ


Who owns the most shares of ASP Isotopes?

ASP Isotopes’s largest shareholders are Blackrock funding, inc. /de (8.33M shares, 10.03%), Encompass capital advisors (6.91M shares, 8.33%), and Vanguard group (6.41M shares, 7.23%). Together, they hold 25.59% 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 2.98% of its assets in 4.1M ASP Isotopes shares, valued at 21.89M$.

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

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of ASP Isotopes shares, with 2.94% of its total shares outstanding invested in 3.7M ASP Isotopes shares.

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