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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
Rothschild Investment LLC35$2580.00%+35New
US Bancorp74$5440.00%+20+37.0%Added
Skopos Labs, Inc.82$6040.00%+82New
The PNC Financial Services Group, Inc.112$8240.00%+112New
Federated Hermes, Inc.129$9490.00%+129New
CWM, LLC145$1.00K0.00%+29+25.0%Added
Sterling Capital Management LLC154$1.13K0.00%+99+180.0%Added
GAMMA Investing LLC168$1.24K0.00%+23+15.9%Added
Rise Advisors, LLC193$1.42K0.00%+74+62.2%Added
ORG Partners LLC235$1.65K0.00%00.0%Unchanged
Ameritas Advisory Services, LLC250$1.84K0.00%+250New
CIBC Private Wealth Group, LLC300$2.21K0.00%00.0%Unchanged
Activest Wealth Management480$3.53K0.00%+480New
Jones Financial Companies LLLP914$6.76K0.00%+914New
FNY Investment Advisers, LLC1,000$7.00K0.00%+1,000New
Signaturefd, LLC1,000$7.36K0.00%+1,000New
Nisa Investment Advisors, LLC1,038$7.64K0.00%+900+652.2%Added
MAI Capital Management1,125$8.28K0.00%00.0%Unchanged
Parallel Advisors, LLC1,537$11.3K0.00%+1,537New
Raymond James Financial Inc1,697$12.5K0.00%+1,697New
Amalgamated Bank1,808$13.0K0.00%00.0%Unchanged
National Bank of Canada2,514$18.5K0.00%−6,086−70.8%Reduced
Federation des caisses Desjardins du Quebec2,680$19.7K0.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd2,927$21.5K0.02%+2,883+6,552.3%Added
California State Teachers Retirement System3,765$27.7K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.5,483$40.4K0.00%+1,600+41.2%Added
BNP Paribas Arbitrage, SA5,549$40.8K0.00%+2,548+84.9%Added
Legal & General Group Plc6,424$47.3K0.00%−60−0.9%Reduced
Advisor Group Holdings, Inc.7,500$55.2K0.00%+900+13.6%Added
Russell Investments Group, Ltd.9,424$69.4K0.00%+565+6.4%Added
Pale Fire Capital SE10,300$75.8K0.01%−400−3.7%Reduced
FMR LLC10,361$76.3K0.00%+781+8.2%Added
Avantax Advisory Services, Inc.10,493$77.2K0.00%+352+3.5%Added
Tower Research Capital LLC (TRC)10,890$80.2K0.00%+5,353+96.7%Added
GTS Securities LLC11,311$83.2K0.00%+11,311New
ProShare Advisors LLC11,653$85.8K0.00%−177−1.5%Reduced
KKM Financial LLC12,000$88.3K0.03%00.0%Unchanged
Wolverine Trading, LLC13,278$98.3K0.00%+13,278New
AQR Capital Management LLC14,035$103.3K0.00%−9,711−40.9%Reduced
Police & Firemen's Retirement System of New Jersey14,366$105.7K0.00%00.0%Unchanged
FORA Capital, LLC14,569$107.2K0.01%+14,569New
Perennial Advisors, LLC15,000$110.4K0.02%+15,000New
Voya Investment Management LLC15,829$116.5K0.00%+1,318+9.1%Added
National Asset Management, Inc.16,380$120.6K0.01%−2,400−12.8%Reduced
Advisory Services Network, LLC13,835$125.5K0.00%+13,835New
New York State Common Retirement Fund17,100$125.9K0.00%+13,800+418.2%Added
Fielder Capital Group LLC18,070$133.0K0.04%+10+0.1%Added
Penn Capital Management Co Inc18,665$137.4K0.01%+18,665New
LPL Financial LLC19,227$141.5K0.00%+19,227New
Mercer Global Advisors Inc19,434$143.0K0.00%+6,243+47.3%Added
Citigroup Inc20,177$148.5K0.00%−18,717−48.1%Reduced
Leonteq Securities AG20,639$151.9K0.01%+9,000+77.3%Added
Manufacturers Life Insurance Company, The20,840$153.4K0.00%+1,878+9.9%Added
SBI Securities Co., Ltd.21,279$156.6K0.00%+11,909+127.1%Added
Belvedere Trading LLC23,630$173.9K0.01%+23,630New
Apis Capital Advisors, LLC24,000$176.6K0.06%−167,000−87.4%Reduced
XTX Topco Ltd24,155$177.8K0.01%+24,155New
Royal Bank of Canada24,571$181.0K0.00%+14,499+144.0%Added
Intech Investment Management LLC25,756$189.6K0.00%−1,196−4.4%Reduced
PFG Investments, LLC26,500$195.0K0.01%+6,500+32.5%Added
Price T Rowe Associates Inc26,597$196.0K0.00%+3,476+15.0%Added
Bank of Montreal27,000$198.7K0.00%+2,000+8.0%Added
Goldman Sachs Group Inc28,449$209.4K0.00%−59,058−67.5%Reduced
Mariner, LLC28,645$210.8K0.00%+28,645New
Wells Fargo & Company29,369$216.2K0.00%+3,254+12.5%Added
Harbour Capital Advisors, LLC33,025$232.2K0.05%+33,025New
Mirae Asset Global ETFs Holdings Ltd.31,678$233.2K0.00%+65+0.2%Added
Millennium Management LLC32,281$237.6K0.00%+13,968+76.3%Added
Allegheny Financial Group LTD33,891$249.4K0.06%+33,891New
Marshall Wace, LLP33,937$249.8K0.00%−144,197−80.9%Reduced
Sanctuary Advisors, LLC34,266$252.2K0.00%+21,082+159.9%Added
Quest Partners LLC34,716$255.5K0.03%+34,716New
MetLife Investment Management34,897$256.8K0.00%+3,165+10.0%Added
Deutsche Bank AG36,999$272.3K0.00%−3,093−7.7%Reduced
Stifel Financial Corp38,452$283.0K0.00%+38,452New
Shay Capital LLC43,500$320.2K0.07%+43,500New
Saranac Partners Ltd44,195$325.3K0.17%00.0%Unchanged
Universal- Beteiligungs- und Servicegesellschaft mbH45,000$331.2K0.00%+45,000New
MML Investors Services, LLC47,008$346.0K0.00%+47,008New
Commonwealth Equity Services, LLC52,998$390.0K0.00%+52,998New
Destination Wealth Management56,964$419.3K0.01%00.0%Unchanged
Scientech Research LLC69,253$509.7K0.12%+69,253New
Verition Fund Management LLC70,259$517.1K0.00%+70,259New
Marex Group plc75,000$552.0K0.01%−7,535−9.1%Reduced
IMC-Chicago, LLC75,277$554.0K0.01%+75,277New
EAM Investors, LLC76,716$564.6K0.09%+76,716New
Rhumbline Advisers78,994$581.4K0.00%+13,668+20.9%Added
Steward Partners Investment Advisory, LLC81,700$601.3K0.00%00.0%Unchanged
Virtu Financial LLC93,287$687.0K0.04%+93,287New
Farther Finance Advisors, LLC95,999$706.6K0.01%+95,999New
Alliancebernstein L.P.98,870$727.7K0.00%+69,340+234.8%Added
Susquehanna International Group, LLP102,291$752.9K0.00%−175,555−63.2%Reduced
Prelude Capital Management, LLC105,452$776.1K0.08%−48,318−31.4%Reduced
Omers Administration Corp121,800$896.4K0.01%+121,800New
Nuveen, LLC131,997$971.5K0.00%+767+0.6%Added
Bank of America Corp132,556$975.6K0.00%+30,880+30.4%Added
Citadel Advisors LLC145,203$1.07M0.00%+145,203New
Jane Street Group, LLC149,434$1.10M0.00%+149,434New
Bank of New York Mellon Corp153,154$1.13M0.00%+10,897+7.7%Added
Creative Planning172,770$1.27M0.00%+172,770New