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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.

Q2 2025 vs. Q1 2025

How the institutions holding ASP Isotopes Inc. changed between Q1 2025 and Q2 2025.

All holders in Q2 2025All holders in Q1 2025

13F holders of ASPI: Q1 2025 compared with Q2 2025
MeasureQ1 2025Of which not filed for Q2 2025Q2 2025Change
Holders1001130+31
Shares32.6M3141.5M+8.94M (+27.4%)
Value$152.8M$145$305.5M+$152.7M (+100.0%)

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (44)

Institutions that held ASP Isotopes Inc. at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to ASPI in Q2 2025
InstitutionSharesValue% of portfolio
Alyeska Investment Group, L.P.4,179,934$30.8M0.11%
Driehaus Capital Management LLC1,405,414$10.3M0.08%
Exchange Traded Concepts, LLC1,303,414$9.59M0.12%
Voloridge Investment Management, LLC225,249$1.66M0.01%
Polen Capital Management LLC175,138$1.29M0.00%
Creative Planning172,770$1.27M0.00%
Jane Street Group, LLC149,434$1.10M0.00%
Citadel Advisors LLC145,203$1.07M0.00%
Omers Administration Corp121,800$896.4K0.01%
Farther Finance Advisors, LLC95,999$706.6K0.01%
Virtu Financial LLC93,287$687.0K0.04%
EAM Investors, LLC76,716$564.6K0.09%
IMC-Chicago, LLC75,277$554.0K0.01%
Verition Fund Management LLC70,259$517.1K0.00%
Scientech Research LLC69,253$509.7K0.12%
Commonwealth Equity Services, LLC52,998$390.0K0.00%
MML Investors Services, LLC47,008$346.0K0.00%
Universal- Beteiligungs- und Servicegesellschaft mbH45,000$331.2K0.00%
Shay Capital LLC43,500$320.2K0.07%
Stifel Financial Corp38,452$283.0K0.00%
Quest Partners LLC34,716$255.5K0.03%
Allegheny Financial Group LTD33,891$249.4K0.06%
Harbour Capital Advisors, LLC33,025$232.2K0.05%
Mariner, LLC28,645$210.8K0.00%
XTX Topco Ltd24,155$177.8K0.01%
Belvedere Trading LLC23,630$173.9K0.01%
LPL Financial LLC19,227$141.5K0.00%
Penn Capital Management Co Inc18,665$137.4K0.01%
Advisory Services Network, LLC13,835$125.5K0.00%
Perennial Advisors, LLC15,000$110.4K0.02%
FORA Capital, LLC14,569$107.2K0.01%
Wolverine Trading, LLC13,278$98.3K0.00%
GTS Securities LLC11,311$83.2K0.00%
Raymond James Financial Inc1,697$12.5K0.00%
Parallel Advisors, LLC1,537$11.3K0.00%
Signaturefd, LLC1,000$7.36K0.00%
FNY Investment Advisers, LLC1,000$7.00K0.00%
Jones Financial Companies LLLP914$6.76K0.00%
Activest Wealth Management480$3.53K0.00%
Ameritas Advisory Services, LLC250$1.84K0.00%
Federated Hermes, Inc.129$9490.00%
The PNC Financial Services Group, Inc.112$8240.00%
Skopos Labs, Inc.82$6040.00%
Rothschild Investment LLC35$2580.00%

Sold out (13)

Institutions that held ASP Isotopes Inc. at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of ASPI in Q2 2025
InstitutionShares, Q1 2025Value, Q1 2025
CenterBook Partners LP175,959$825.2K
Sculptor Capital LP95,800$449.3K
PEAK6 LLC86,600$406.2K
Balyasny Asset Management LLC55,749$261.5K
Pekin Hardy Strauss, Inc.28,450$133.4K
Corebridge Financial, Inc.26,776$125.6K
Boston Private Wealth LLC25,000$117.3K
Fortitude Advisory Group L.L.C.13,600$77.4K
Engineers Gate Manager LP14,107$66.2K
CIBC World Markets Corp12,128$56.9K
Snowden Capital Advisors LLC10,000$46.9K
Hanson & Doremus Investment Management5,000$23.0K
Parkside Financial Bank & Trust105$487

Not filed for Q2 2025 yet (1)

Institutions that held ASP Isotopes Inc. at the end of Q1 2025 and haven't filed a 13F for Q2 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ASPI in Q1 2025 that haven't filed for Q2 2025
InstitutionShares, Q1 2025Value, Q1 2025
Lindbrook Capital, LLC31$145