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ASPINasdaq
ASP Isotopes Inc.
Miscellaneous Chemical Products · DE · CIK 1921865
ASP Isotopes Inc. develops isotope enrichment platforms for nuclear medicine, semiconductors, and nuclear energy
$825M
Market cap
$6.22
Last close
+0.8%
1D
-14.6%
5D
4.4M
Volume
Price · last 39 sessions+20.5%
May 4L $4.84 · H $8.33Jun 29
151
Total filings
Jun 25, 2026
Last filing
12/31
Fiscal year end
8-KMaterial Agreement · Equity IssuanceJun 25, 20268-KReg FD DisclosureJun 25, 20268-KReg FD DisclosureJun 23, 20268-KReg FD DisclosureMay 26, 20268-KReg FD DisclosureMay 20, 202610-Q10-QMay 20, 20268-KReg FD DisclosureMay 11, 20268-KReg FD DisclosureMay 6, 202610-K/A10-K/AApr 30, 20268-KReg FD DisclosureApr 13, 202610-K10-KApr 10, 20268-KReg FD DisclosureApr 10, 20268-K/ACompany UpdateMar 24, 20268-KReg FD DisclosureMar 24, 20268-KReg FD DisclosureMar 23, 20268-KReg FD DisclosureMar 10, 20268-KReg FD DisclosureMar 6, 20268-KReg FD DisclosureMar 5, 20268-KReg FD DisclosureFeb 23, 20268-KReg FD DisclosureFeb 19, 20268-KReg FD DisclosureFeb 17, 20268-KMaterial AgreementJan 30, 20268-KReg FD DisclosureJan 29, 20268-KExecutive ChangeJan 12, 20268-KAcquisition / Disposition · Equity IssuanceJan 7, 20268-KShareholder VoteDec 19, 20258-KReg FD DisclosureDec 18, 20258-KCompany UpdateDec 17, 20258-KExecutive ChangeDec 8, 20258-KCompany UpdateDec 3, 20258-KMaterial Agreement · Company UpdateNov 28, 2025DEF 14ADEF 14ANov 25, 20258-KReg FD DisclosureNov 21, 202510-Q10-QNov 19, 20258-KReg FD DisclosureNov 17, 20258-KMaterial Agreement · New Debt / ObligationNov 14, 20258-KReg FD DisclosureNov 12, 20258-KReg FD DisclosureNov 7, 20258-KCompany UpdateNov 5, 20258-KCompany UpdateOct 23, 20258-KMaterial Agreement · Company UpdateOct 16, 2025424B5424B5Oct 16, 2025424B5424B5Oct 15, 20258-KCompany UpdateOct 14, 20258-KExecutive ChangeOct 3, 20258-KReg FD DisclosureSep 30, 20258-KCompany UpdateSep 29, 20258-KCompany UpdateSep 22, 20258-KReg FD DisclosureSep 15, 20258-KExecutive ChangeSep 8, 20258-KReg FD DisclosureSep 2, 20258-KReg FD DisclosureAug 25, 20258-KCompany UpdateAug 15, 202510-Q10-QAug 14, 20258-KCompany UpdateAug 8, 20258-KMaterial Agreement · Reg FD DisclosureJul 30, 20258-KCompany UpdateJul 28, 20258-KCompany UpdateJul 25, 20258-KMaterial Agreement · Agreement TerminatedJul 24, 2025424B5424B5Jul 24, 2025424B5424B5Jul 24, 20258-KCompany UpdateJul 17, 20258-KCompany UpdateJul 11, 20258-KCompany UpdateJun 11, 20258-KCompany UpdateJun 4, 2025424B5424B5Jun 2, 20258-KMaterial Agreement · Company UpdateJun 2, 20258-KReg FD DisclosureMay 29, 20258-KCompany UpdateMay 28, 20258-KCompany UpdateMay 27, 20258-KMaterial Agreement · New Debt / ObligationMay 22, 202510-Q10-QMay 20, 20258-KMaterial Agreement · Equity IssuanceMay 20, 20258-KReg FD DisclosureMay 20, 202510-K/AFORM 10-K/AApr 30, 20258-KExecutive Change · Reg FD DisclosureApr 15, 20258-KReg FD DisclosureApr 1, 202510-K10-KMar 31, 20258-KReg FD DisclosureMar 31, 20258-KReg FD DisclosureMar 27, 2025
Insider Activity
In the 90 days to Mar 6, 2026: 3 sold $1.4M.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 6, 2026 | Ainscow RobertCOO | Sell | 8,438 | $5.44 | $46K |
| Mar 2, 2026 | Mann Paul ElliotExecutive Chairman | Sell | 162,153 | $5.44 | $882K |
| Dec 18, 2025 | Kiessling HeatherChief Financial Officer | Sell | 80,000 | $5.80 | $464K |
| Dec 8, 2025 | Ainscow RobertInterim CEO and COO | Sell | 8,438 | $6.20 | $52K |
| Dec 1, 2025 | Mann Paul ElliotExecutive Chairman | Sell | 162,153 | $5.75 | $932K |
| Nov 25, 2025 | Mann Paul ElliotExecutive Officer | Sell | 50,000 | $5.77 | $289K |
| Nov 25, 2025 | Ainscow RobertInterim CEO and COO | Sell | 25,000 | $5.77 | $144K |
| Nov 17, 2025 | Mann Paul ElliotExecutive Officer | Sell | 112,500 | $7.51 | $845K |
| Nov 17, 2025 | Ainscow RobertInterim CEO and COO | Sell | 67,500 | $7.51 | $507K |
| Oct 14, 2025 | Ainscow RobertInterim CEO and COO | Sell | 22,500 | $13.60 | $306K |
| Sep 30, 2025 | Gorley MichaelDirector | Sell | 64,000 | $9.75 | $624K |
| Sep 15, 2025 | Wider ToddDirector | Sell | 74,108 | $8.76 | $649K |
Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.
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