ASP Isotopes Inc. SEC filings

Filings

Every filing, newest first. MAJOR and NOTABLE filings lead the app's feed; ROUTINE ones are kept here.

1. ROUTINE4ASP Isotopes Inc.ASPI2d

   Ainscow Robert sells shares of ASPI

   • Sold 22,500 shares on 10/14/2026
   • Price range $2.05 to $2.22
   • Part of a Rule 10b5-1 trading plan

   Robert Ainscow, reporting

2. ROUTINE144ASP Isotopes Inc.ASPI2d

   ASPI: Heather Kiessling files Form 144

   • Filer: Heather Kiessling
   • Securities: 21,830 shares of common stock
   • Market value: $47,975.09

   Heather Kiessling, reporting

3. ROUTINE8-KASP Isotopes Inc.ASPI4d

   ASPI announces joint venture with Necsa

   • Subsidiary QLE signed Agreement with Necsa
   • Joint venture to develop HALEU facility in South Africa
   • Agreement includes test bench and commercial-scale facility
4. ROUTINE144ASP Isotopes Inc.ASPI4d

   Ainscow Robert files Form 144

   • Filed on 2026-10-14
   • 22,500 shares to be sold
   • Aggregate market value $46,575

   Robert Ainscow, reporting

5. NOTABLESCHEDULE 13DENDRA Life Sciences Inc.NDRAOct 8

   ASPI files Schedule 13D

   • ASP Isotopes Inc. filed a Schedule 13D on 2026-10-08.
   • LHE LNG Holdings LLC holds 254,015 shares of Endra Life Sciences Inc.
   • The shares represent 15.1% of the company's outstanding stock.

   ASP Isotopes Inc., filed by

6. ROUTINE3ENDRA Life Sciences Inc.NDRAOct 8

   ASPI files Form 3 on 10/08/2026

   • 66,846 common shares held by LHE LNG
   • 511,541 pre-funded warrants
   • 1,156,774 warrants at $6.57

   ASP Isotopes Inc., reporting · LHE LNG Holdings LLC, reporting

7. ROUTINE8-KASP Isotopes Inc.ASPIOct 2

   ASPI files merger registration statement

   • Merger with ENDRA announced on June 25, 2026
   • Registration Statement on Form S-4 filed on October 2, 2026
   • Merger involves Noble Africa and Renergen subsidiaries
8. ROUTINE4ASP Isotopes Inc.ASPIOct 1

   Robert John Andrew Ryan, insider filing for ASPI

   Robert John Andrew Ryan

9. ROUTINE4ASP Isotopes Inc.ASPISep 30

   Robert John Andrew Ryan, insider filing for ASPI

   Robert John Andrew Ryan, reporting

10. ROUTINE144ASP Isotopes Inc.ASPISep 25

    Todd Wider, planned sale of ASPI shares

    Todd Wider, reporting

11. ROUTINE4ASP Isotopes Inc.ASPISep 10

    Robert Ainscow, insider filing for ASPI

    Robert Ainscow, reporting

12. ROUTINE425ENDRA Life Sciences Inc.NDRASep 9

    Merger communication

    ASP Isotopes Inc., filed by

13. ROUTINE425ENDRA Life Sciences Inc.NDRASep 9

    Merger communication

    ASP Isotopes Inc., filed by

14. ROUTINE8-KASP Isotopes Inc.ASPISep 8

    Current report

15. ROUTINE4ASP Isotopes Inc.ASPISep 4

    3 insider filings

    Donald George Ainscow, insider filing for ASPI

    Show all 3

    • 4Insider filing for ASPISep 4
    • 4Insider filing for ASPISep 4
    • 4Insider filing for ASPISep 4

    Donald George Ainscow, reporting

16. ROUTINE144ASP Isotopes Inc.ASPISep 2

    2 Form 144 notices

    Paul Elliot Mann, planned sale of ASPI shares

    Show all 2

    • 144Planned insider sale of ASPI sharesSep 2
    • 144Planned insider sale of ASPI sharesSep 2

    Paul Elliot Mann, reporting

17. ROUTINE144ASP Isotopes Inc.ASPISep 2

    Donald George Ainscow, planned sale of ASPI shares

    Donald George Ainscow, reporting

18. ROUTINE8-KASP Isotopes Inc.ASPIAug 20

    Current report

19. ROUTINE425ENDRA Life Sciences Inc.NDRAAug 20

    Merger communication

    ASP Isotopes Inc., filed by

20. ROUTINE8-KASP Isotopes Inc.ASPIAug 20

    Current report

21. ROUTINE8-KASP Isotopes Inc.ASPIAug 18

    Current report

22. NOTABLE10-QASP Isotopes Inc.ASPIAug 14

    Quarterly report

23. ROUTINE8-KASP Isotopes Inc.ASPIAug 6

    Current report

24. ROUTINE425ENDRA Life Sciences Inc.NDRAAug 6

    Merger communication

    ASP Isotopes Inc., filed by

25. ROUTINE8-KASP Isotopes Inc.ASPIAug 6

    Current report

26. ROUTINE425ENDRA Life Sciences Inc.NDRAAug 5

    Merger communication

    ASP Isotopes Inc., filed by

27. ROUTINE425ENDRA Life Sciences Inc.NDRAAug 4

    Merger communication

    ASP Isotopes Inc., filed by

28. ROUTINE8-KASP Isotopes Inc.ASPIAug 4

    Current report

29. ROUTINE8-KASP Isotopes Inc.ASPIJul 30

    Current report

30. ROUTINE8-KASP Isotopes Inc.ASPIJul 28

    Current report

31. ROUTINE425ENDRA Life Sciences Inc.NDRAJul 22

    Merger communication

    ASP Isotopes Inc., filed by

32. ROUTINE425ENDRA Life Sciences Inc.NDRAJul 22

    Merger communication

    ASP Isotopes Inc., filed by

33. ROUTINE8-KASP Isotopes Inc.ASPIJul 21

    Current report

34. ROUTINEDASP Isotopes Inc.ASPIJul 17

    Private placement notice

35. ROUTINE425ENDRA Life Sciences Inc.NDRAJul 17

    Merger communication

    ASP Isotopes Inc., filed by

36. ROUTINES-3ASRASP Isotopes Inc.ASPIJul 16

    Securities offering

37. ROUTINE8-KASP Isotopes Inc.ASPIJul 16

    Current report

38. ROUTINE8-KASP Isotopes Inc.ASPIJul 16

    Current report

39. ROUTINE4ASP Isotopes Inc.ASPIJul 2

    2 insider filings

    Heather Kiessling, insider filing for ASPI

    Show all 2

    • 4Insider filing for ASPIJul 2
    • 4Insider filing for ASPIJul 2

    Heather Kiessling, reporting

40. ROUTINE4ASP Isotopes Inc.ASPIJul 1

    2 insider filings

    Todd Wider, insider filing for ASPI

    Show all 2

    • 4Insider filing for ASPIJul 1
    • 4Insider filing for ASPIJul 1

    Todd Wider, reporting

41. ROUTINE144ASP Isotopes Inc.ASPIJun 30

    Donald George Ainscow, planned sale of ASPI shares

    Donald George Ainscow, reporting

42. ROUTINE144ASP Isotopes Inc.ASPIJun 29

    Michael Gorley, planned sale of ASPI shares

    Michael Gorley, reporting

43. ROUTINE144ASP Isotopes Inc.ASPIJun 29

    Todd Wider, planned sale of ASPI shares

    Todd Wider, reporting

44. ROUTINE425ENDRA Life Sciences Inc.NDRAJun 25

    Merger communication

    ASP Isotopes Inc., filed by

45. ROUTINE8-KASP Isotopes Inc.ASPIJun 25

    Current report

Older filings on EDGAR