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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, Q1 2025

Institutional positions in ASP Isotopes Inc. as of Mar 31, 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
100
+7 vs. Q4 2024
Shares held
32.6M
+485.2K (+1.5%) vs. Q4 2024
Total value
$152.8M
+$7.38M (+5.1%) vs. Q4 2024
New holders
20
38 more added
Sold out
13
25 more reduced

2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 holdersQ1 2025: 100 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 heldQ1 2025: $152.8M
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, Q1 2025

Shares, value and share of portfolio for each institution holding ASP Isotopes Inc.; share changes are against Q4 2024.

Institutions holding ASPI in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Lindbrook Capital, LLC31$1450.00%+31New
Caitong International Asset Management Co., Ltd44$2060.00%+44New
US Bancorp54$2530.00%00.0%Unchanged
Sterling Capital Management LLC55$2580.00%00.0%Unchanged
Parkside Financial Bank & Trust105$4870.00%+105New
Rise Advisors, LLC119$5580.00%+119New
Nisa Investment Advisors, LLC138$6470.00%00.0%Unchanged
GAMMA Investing LLC145$6800.00%+145New
CWM, LLC116$1.00K0.00%+37+46.8%Added
ORG Partners LLC235$1.13K0.00%+235New
CIBC Private Wealth Group, LLC300$1.31K0.00%00.0%Unchanged
MAI Capital Management1,125$5.28K0.00%−1,125−50.0%Reduced
Amalgamated Bank1,808$8.00K0.00%+437+31.9%Added
Simplex Trading, LLC2,578$12.0K0.00%+1,299+101.6%Added
Federation des caisses Desjardins du Quebec2,680$12.6K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA3,001$14.1K0.00%−4,428−59.6%Reduced
New York State Common Retirement Fund3,300$15.5K0.00%00.0%Unchanged
California State Teachers Retirement System3,765$17.7K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.3,883$18.2K0.00%00.0%Unchanged
Hanson & Doremus Investment Management5,000$23.0K0.00%−1,000−16.7%Reduced
Tower Research Capital LLC (TRC)5,537$26.0K0.00%+1,262+29.5%Added
Legal & General Group Plc6,484$30.4K0.00%+945+17.1%Added
Advisor Group Holdings, Inc.6,600$31.0K0.00%+6,600New
National Bank of Canada8,600$40.3K0.00%00.0%Unchanged
Russell Investments Group, Ltd.8,859$41.5K0.00%−1,362−13.3%Reduced
SBI Securities Co., Ltd.9,370$43.9K0.00%+4,299+84.8%Added
FMR LLC9,580$44.9K0.00%+573+6.4%Added
Snowden Capital Advisors LLC10,000$46.9K0.00%00.0%Unchanged
Royal Bank of Canada10,072$47.0K0.00%+8,999+838.7%Added
Avantax Advisory Services, Inc.10,141$47.6K0.00%+141+1.4%Added
Pale Fire Capital SE10,700$50.2K0.01%−1,000−8.5%Reduced
Leonteq Securities AG11,639$53.0K0.00%00.0%Unchanged
ProShare Advisors LLC11,830$55.5K0.00%−2,921−19.8%Reduced
KKM Financial LLC12,000$56.3K0.02%−5,250−30.4%Reduced
CIBC World Markets Corp12,128$56.9K0.00%+12,128New
Sanctuary Advisors, LLC13,184$61.8K0.00%+144+1.1%Added
Mercer Global Advisors Inc13,191$61.9K0.00%+13,191New
Engineers Gate Manager LP14,107$66.2K0.00%−5,768−29.0%Reduced
Police & Firemen's Retirement System of New Jersey14,366$67.4K0.00%00.0%Unchanged
Voya Investment Management LLC14,511$68.1K0.00%−526−3.5%Reduced
Fortitude Advisory Group L.L.C.13,600$77.4K0.06%+13,600New
Fielder Capital Group LLC18,060$84.7K0.02%+50.0%Added
Millennium Management LLC18,313$85.9K0.00%+6,126+50.3%Added
National Asset Management, Inc.18,780$88.1K0.00%+18,780New
Manufacturers Life Insurance Company, The18,962$88.9K0.00%+902+5.0%Added
PFG Investments, LLC20,000$93.8K0.01%+20,000New
Invesco Ltd.20,443$95.9K0.00%−590−2.8%Reduced
Options Solutions, LLC22,000$103.2K0.05%+22,000New
Price T Rowe Associates Inc23,121$109.0K0.00%+1,475+6.8%Added
AQR Capital Management LLC23,746$111.4K0.00%−6,375−21.2%Reduced
Bank of Montreal25,000$117.3K0.00%00.0%Unchanged
Boston Private Wealth LLC25,000$117.3K0.00%+14,235+132.2%Added
Wells Fargo & Company26,115$122.5K0.00%+1,643+6.7%Added
Corebridge Financial, Inc.26,776$125.6K0.00%+737+2.8%Added
Intech Investment Management LLC26,952$126.4K0.00%−1,587−5.6%Reduced
Pekin Hardy Strauss, Inc.28,450$133.4K0.02%−7,000−19.7%Reduced
Alliancebernstein L.P.29,530$138.5K0.00%00.0%Unchanged
Mirae Asset Global ETFs Holdings Ltd.31,613$148.3K0.00%+2,709+9.4%Added
MetLife Investment Management31,732$148.8K0.00%+5,744+22.1%Added
Citigroup Inc38,894$182.4K0.00%−20,157−34.1%Reduced
Deutsche Bank AG40,092$188.0K0.00%+6,505+19.4%Added
Saranac Partners Ltd44,195$207.3K0.12%00.0%Unchanged
Balyasny Asset Management LLC55,749$261.5K0.00%+55,749New
Destination Wealth Management56,964$267.2K0.01%+56,964New
Rhumbline Advisers65,326$306.4K0.00%+4,963+8.2%Added
Steward Partners Investment Advisory, LLC81,700$383.2K0.00%+81,700New
Marex Group plc82,535$387.1K0.01%+5,035+6.5%Added
Barclays PLC84,541$396.5K0.00%−23,416−21.7%Reduced
PEAK6 LLC86,600$406.2K0.02%+86,600New
Goldman Sachs Group Inc87,507$410.4K0.00%−85,074−49.3%Reduced
Sculptor Capital LP95,800$449.3K0.01%00.0%Unchanged
Bank of America Corp101,676$476.9K0.00%−11,408−10.1%Reduced
Nuveen, LLC131,230$615.5K0.00%+131,230New
Bank of New York Mellon Corp142,257$667.2K0.00%+16,383+13.0%Added
Tudor Investment Corp Et Al150,023$703.6K0.01%+150,023New
Prelude Capital Management, LLC153,770$721.2K0.07%+51,050+49.7%Added
Charles Schwab Investment Management Inc165,364$775.6K0.00%+7,138+4.5%Added
CenterBook Partners LP175,959$825.2K0.05%−1,325,085−88.3%Reduced
Marshall Wace, LLP178,134$835.4K0.00%+30,137+20.4%Added
Apis Capital Advisors, LLC191,000$895.8K0.43%+18,472+10.7%Added
Two Sigma Investments, LP203,067$952.4K0.00%−234,118−53.6%Reduced
Rathbone Brothers plc205,929$965.8K0.00%+29,830+16.9%Added
JPMorgan Chase & Co228,706$1.07M0.00%+16,813+7.9%Added
Morgan Stanley262,463$1.23M0.00%−53,077−16.8%Reduced
Group One Trading, L.P.269,628$1.26M0.05%+202,507+301.7%Added
Susquehanna International Group, LLP277,846$1.30M0.00%−106,626−27.7%Reduced
Rovida Investment Management Ltd350,000$1.62M0.49%+131,028+59.8%Added
Diametric Capital, LP393,025$1.84M2.19%+89,170+29.3%Added
Northern Trust Corp460,729$2.16M0.00%+25,041+5.7%Added
Gsa Capital Partners LLP569,578$2.67M0.24%−239,133−29.6%Reduced
UBS Group AG1,015,464$4.76M0.00%−939,433−48.1%Reduced
State Street Corp1,047,344$4.91M0.00%+17,612+1.7%Added
Geode Capital Management, LLC1,253,321$5.88M0.00%+77,871+6.6%Added
Telemark Asset Management, LLC1,475,000$6.92M0.91%00.0%Unchanged
Capital Research Global Investors2,868,062$13.5M0.00%+2,868,062New
Vanguard Group Inc3,088,052$14.5M0.00%−93,453−2.9%Reduced
Philadelphia Financial Management of San Francisco, LLC3,508,062$16.5M3.66%+354,517+11.2%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.3,638,215$17.1M0.05%−690,287−15.9%Reduced
BlackRock, Inc.4,051,080$19.0M0.00%+95,692+2.4%Added
AWM Investment Company, Inc.4,511,186$21.2M2.91%+265,000+6.2%Added