Form 4 Tracker
ASP Isotopes Inc.
ASPI

21 insider filings · Latest: Sep 30, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Oct 16, 2026Oct 16 9:23 PMHeather Kiessling
Proposed Sale
21,830$2.20$48.0K—

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Oct 14, 2026Oct 15 1:50 AMAinscow Robert
Proposed Sale
22,500$2.07$46.6K—

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Sep 30, 2026Oct 1 9:52 PMRobert John Andrew RyanDirector
Purchase
15,000$2.68$40.2K675,222(D)

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Sep 28, 2026Sep 30 10:30 AMRobert John Andrew RyanDirector
Purchase
8,000$2.70$21.6K660,222(D)

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Sep 25, 2026Sep 25 8:08 PMTodd Wider
Proposed Sale
200,000$2.95$590.0K—

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Sep 8, 2026Sep 11 1:45 AMRobert AinscowCOO
Sale
8,438$4.29$36.2K2,248,441(D)

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Sep 2, 2026Sep 5 1:33 AMDonald George AinscowEVP, Gen Counsel, Secretary
Sale
23,678$3.89$92.1K776,322(D)

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Sep 2, 2026Sep 5 1:32 AMRobert AinscowCOO
Sale
25,000$3.91$97.6K2,256,879(D)

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Sep 4, 2026Sep 5 1:30 AMPaul Elliot MannDirector, Chairman and CEO
Sale
83,759$4.10$343.4K9,328,570(D)

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Sep 3, 2026Sep 5 1:30 AMPaul Elliot MannDirector, Chairman and CEO
Sale
83,758$3.92$328.3K9,412,329(D)

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Sep 2, 2026Sep 5 1:30 AMPaul Elliot MannDirector, Chairman and CEO
Sale
83,758$3.91$327.5K9,496,087(D)

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Sep 4, 2026Sep 3 1:30 AMMann Paul Elliot
Proposed Sale
251,275$3.78$949.8K—

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Sep 8, 2026Sep 3 1:30 AMAinscow Robert
Proposed Sale
33,438$3.78$126.4K—

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Sep 2, 2026Sep 2 4:44 PMDonald George Ainscow
Proposed Sale
50,000$3.89$194.4K—

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Jul 1, 2026Jul 3 1:45 AMHeather KiesslingChief Financial Officer
Sale
23,124$6.28$145.2K1,526,252(D)

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Jun 30, 2026Jul 3 1:45 AMDonald George AinscowEVP, Gen Counsel, Secretary
Sale
100,000$6.14$614.0K800,000(D)

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Jun 30, 2026Jul 2 1:45 AMTodd WiderDirector
Sale
50,000$6.12$306.0K672,247(D)

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Jun 29, 2026Jul 2 1:45 AMTodd WiderDirector
Sale
50,000$6.25$312.5K722,247(D)

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Jun 30, 2026Jul 2 1:45 AMMichael GorleyDirector
Sale
30,000$6.27$188.1K87,908(D)

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Jun 30, 2026Jul 1 1:56 AMAinscow Donald George
Proposed Sale
100,000$6.22$622.0K—

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Stock Options & Derivatives

No transactions found.