Ainscow Robert sold ASPI

December 8, 2025 · Form 4 insider transaction

Ainscow Robert sold 8,438 shares of ASP Isotopes Inc. at $6.20 per share, a transaction worth $52.3K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4.

Direction
Disposed (sell-side)
Shares
8,438
Price
$6.20
Total value
$52.3K
RoleOfficer
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateDecember 8, 2025
Filing dateDecember 11, 2025
Shares owned after1,546,255
OwnershipDirect
10b5-1 planYes
AmendedNo

Footnotes

Represents "sell to cover" sales effected pursuant to a Rule 10b5-1 trading plan adopted by the filing person on June 9, 2025 to cover tax withholding obligations in connection with the vesting of restricted stock awards.; The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.03 to $6.525, inclusive. The reporting person undertakes to provide ASP Isotopes Inc. (the "Company"), any stockholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in Footnote 2.

View the original Form 4 on SEC EDGAR