Mann Paul Elliot - 02 Mar 2026 Form 4 Insider Report for ASP Isotopes Inc. (ASPI)

Role: Executive Chairman
Signature: /s/ Donald Ainscow, as attorney-in-fact
Issuer symbol: ASPI
Transactions as of: 02 Mar 2026
Net transactions value: +$881,464
Form type: 4
Filing time: 02 Mar 2026, 21:50:08 UTC
Previous filing: 26 Feb 2026
SEC: View on sec.gov

Quoteable Key Fact

"Mann Paul Elliot filed Form 4 for ASP Isotopes Inc. (ASPI) on 02 Mar 2026."

Quick Takeaways

This page summarizes Mann Paul Elliot's Form 4 filing for ASP Isotopes Inc. (ASPI).
1 reported transaction and 0 derivative rows are listed below.
Filing timestamp: 02 Mar 2026, 21:50.

What Changed

Previous filing in this sequence was filed on 26 Feb 2026.
Current net transaction value: +$881,464.

Why This Matters

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Official SEC Source

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

See Original Filing

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Mann Paul Elliot	Executive Chairman	C/O ASP ISOTOPES INC. 2200 ROSS AVENUE, SUITE 4575E, DALLAS	/s/ Donald Ainscow, as attorney-in-fact	02 Mar 2026	0001744816

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ASPI	Common Stock	Sale	$881,464	+162,153	+2.2%	$5.44	7,597,385	02 Mar 2026	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id	Content
F1	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 quarterly vesting of a restricted stock award.
F2	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.10 to $5.57, 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.

Content

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 quarterly vesting of a restricted stock award.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.10 to $5.57, 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.