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ASP Isotopes Inc.

ASPI
Exchange
Nasdaq
Industry
Miscellaneous Chemical Products
SEC CIK
0001921865

In the last 90 days, ASP Isotopes Inc. insiders filed 0 open-market purchases and 8 sales; 185 institutions reported holding it in 13F filings for Q2 2026, worth $406.1M in total; no superinvestor holds it.

13F holders, Q2 2025

Institutional positions in ASP Isotopes Inc. as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
130
+31 vs. Q1 2025
Shares held
41.5M
+8.94M (+27.4%) vs. Q1 2025
Total value
$305.5M
+$152.7M (+100.0%) vs. Q1 2025
New holders
44
50 more added
Sold out
13
24 more reduced

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ASPI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 130 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 3 institutionsQ1 2023: 6 institutionsQ2 2023: 4 institutionsQ3 2023: 11 institutionsQ4 2023: 19 institutionsQ1 2024: 31 institutionsQ2 2024: 51 institutionsQ3 2024: 69 institutionsQ4 2024: 95 institutionsQ1 2025: 100 institutionsQ2 2025: 130 institutionsQ3 2025: 157 institutionsQ4 2025: 173 institutionsQ1 2026: 177 institutionsQ2 2026: 185 institutions
Value heldQ2 2025: $305.5M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $75.3KQ1 2023: $2.77MQ2 2023: $1.02MQ3 2023: $292.9KQ4 2023: $3.01MQ1 2024: $15.6MQ2 2024: $26.9MQ3 2024: $62.4MQ4 2024: $147.3MQ1 2025: $152.8MQ2 2025: $305.5MQ3 2025: $508.9MQ4 2025: $313.2MQ1 2026: $282.5MQ2 2026: $406.1M
Institutions holding ASPI and their total value by quarter
QuarterHoldersValue
Q2 2026185$406.1M
Q1 2026177$282.5M
Q4 2025173$313.2M
Q3 2025157$508.9M
Q2 2025130$305.5M
Q1 2025100$152.8M
Q4 202495$147.3M
Q3 202469$62.4M
Q2 202451$26.9M
Q1 202431$15.6M
Q4 202319$3.01M
Q3 202311$292.9K
Q2 20234$1.02M
Q1 20236$2.77M
Q4 20223$75.3K
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding ASP Isotopes Inc.; share changes are against Q1 2025.

Institutions holding ASPI in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Russell Investments Group, Ltd.9,424$69.4K0.00%+565+6.4%Added
Advisor Group Holdings, Inc.7,500$55.2K0.00%+900+13.6%Added
Legal & General Group Plc6,424$47.3K0.00%−60−0.9%Reduced
BNP Paribas Arbitrage, SA5,549$40.8K0.00%+2,548+84.9%Added
Ameritas Investment Partners, Inc.5,483$40.4K0.00%+1,600+41.2%Added
California State Teachers Retirement System3,765$27.7K0.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd2,927$21.5K0.02%+2,883+6,552.3%Added
Federation des caisses Desjardins du Quebec2,680$19.7K0.00%00.0%Unchanged
National Bank of Canada2,514$18.5K0.00%−6,086−70.8%Reduced
Amalgamated Bank1,808$13.0K0.00%00.0%Unchanged
Raymond James Financial Inc1,697$12.5K0.00%+1,697New
Parallel Advisors, LLC1,537$11.3K0.00%+1,537New
MAI Capital Management1,125$8.28K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC1,038$7.64K0.00%+900+652.2%Added
Signaturefd, LLC1,000$7.36K0.00%+1,000New
FNY Investment Advisers, LLC1,000$7.00K0.00%+1,000New
Jones Financial Companies LLLP914$6.76K0.00%+914New
Activest Wealth Management480$3.53K0.00%+480New
CIBC Private Wealth Group, LLC300$2.21K0.00%00.0%Unchanged
Ameritas Advisory Services, LLC250$1.84K0.00%+250New
ORG Partners LLC235$1.65K0.00%00.0%Unchanged
Rise Advisors, LLC193$1.42K0.00%+74+62.2%Added
GAMMA Investing LLC168$1.24K0.00%+23+15.9%Added
Sterling Capital Management LLC154$1.13K0.00%+99+180.0%Added
CWM, LLC145$1.00K0.00%+29+25.0%Added
Federated Hermes, Inc.129$9490.00%+129New
The PNC Financial Services Group, Inc.112$8240.00%+112New
Skopos Labs, Inc.82$6040.00%+82New
US Bancorp74$5440.00%+20+37.0%Added
Rothschild Investment LLC35$2580.00%+35New
CenterBook Partners LP0$00.00%−175,959−100.0%Sold out
Sculptor Capital LP0$00.00%−95,800−100.0%Sold out
PEAK6 LLC0$00.00%−86,600−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−55,749−100.0%Sold out
Pekin Hardy Strauss, Inc.0$00.00%−28,450−100.0%Sold out
Corebridge Financial, Inc.0$00.00%−26,776−100.0%Sold out
Boston Private Wealth LLC0$00.00%−25,000−100.0%Sold out
Fortitude Advisory Group L.L.C.0$00.00%−13,600−100.0%Sold out
Engineers Gate Manager LP0$00.00%−14,107−100.0%Sold out
CIBC World Markets Corp0$00.00%−12,128−100.0%Sold out
Snowden Capital Advisors LLC0$00.00%−10,000−100.0%Sold out
Hanson & Doremus Investment Management0$00.00%−5,000−100.0%Sold out
Parkside Financial Bank & Trust0$00.00%−105−100.0%Sold out
Lindbrook Capital, LLC––––Not filed