ASP Isotopes Ownership | Who Owns ASP Isotopes?


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ASP Isotopes Ownership Summary


ASP Isotopes is owned by 15.37% institutional investors, 19.46% insiders, and 65.17% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 7.48% of ASPI shares.

ASPI Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockASP Isotopes15.37%19.46%65.17%
SectorBasic Materials Stocks 36.61%12.69%50.70%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de5.46M7.48%$52.53M
Vanguard group4.52M6.19%$43.45M
Rovida investment management3.20M4.38%$30.69M
Awm investment company2.96M4.05%$28.46M
Alyeska investment group2.82M3.87%$27.15M
Capital research global investors2.04M2.80%$19.66M
Geode capital management1.86M2.55%$17.92M
Philadelphia financial management of san francisco1.66M2.28%$15.98M
Driehaus capital management1.42M1.94%$13.66M
State street1.41M1.93%$13.52M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Rovida investment management3.20M3.48%$30.69M
Awm investment company2.96M2.67%$28.46M
Sara-bay financial903.10K2.43%$8.69M
Philadelphia financial management of san francisco1.66M1.79%$15.98M
Diametric capital, lp355.68K1.27%$3.42M
Telemark asset management1.32M1.21%$12.75M
Southport management30.00K1.19%$288.60K
Gsa capital partners llp320.24K0.26%$3.08M
Scientech research64.39K0.22%$619.41K
Encompass capital advisors500.00K0.17%$4.81M

Top Buyers

HolderShares% AssetsChange
Blackrock funding, inc. /de5.46M0.00%1.43M
Marshall wace, llp1.28M0.01%1.25M
Vanguard group4.52M0.00%1.24M
Jane street group1.22M0.00%1.07M
Price t rowe associates inc /md/1.05M0.00%1.02M

Top Sellers

HolderShares% AssetsChange
Rovida advisors---2.20M
Alyeska investment group2.82M0.08%-1.36M
Bnp paribas asset management663.94K0.02%-1.30M
Philadelphia financial management of san francisco1.66M1.79%-1.01M
Awm investment company2.96M2.67%-972.59K

New Positions

HolderShares% AssetsChangeValue
Jump financial934.50K0.11%934.50K$8.99M
Sara-bay financial903.10K2.43%903.10K$8.69M
Squarepoint ops624.81K0.01%624.81K$6.01M
Encompass capital advisors500.00K0.17%500.00K$4.81M
Caprock group296.00K0.07%296.00K$2.75M

Sold Out

HolderChange
Eversource wealth advisors-12.00
Rothschild investment-35.00
Skopos labs-82.00
Parkside financial bank & trust-105.00
Federated hermes-129.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
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%
Dec 31, 20249950.00%32,397,78344.75%523.98%7025.00%18200.00%
Sep 30, 20246632.00%22,382,629154.85%3611.39%5633.33%6-25.00%

Recent Insider Transactions


DateNameRoleActivityValue
Dec 08, 2025Ainscow Robert Interim CEO and COOSell$52.34K
Dec 01, 2025Mann Paul Elliot Executive ChairmanSell$932.87K
Nov 25, 2025Ainscow Robert Interim CEO and COOSell$144.22K
Nov 17, 2025Mann Paul Elliot Executive OfficerSell$844.54K
Nov 25, 2025Mann Paul Elliot Executive OfficerSell$288.45K

Insider Transactions Trends


DateBuySell
2025 Q4-2
2025 Q3-6
2025 Q2-6
2024 Q4--
2024 Q352

ASPI Ownership FAQ


Who owns the most shares of ASP Isotopes?

ASP Isotopes’s largest shareholders are Blackrock funding, inc. /de (5.46M shares, 7.48%), Vanguard group (4.52M shares, 6.19%), and Rovida investment management (3.2M shares, 4.38%). Together, they hold 18.05% 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 3.48% of its assets in 3.2M ASP Isotopes shares, valued at 30.69M$.

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