ASP Isotopes director proposes sale of 200,000 shares

The notice also records compensation-related acquisition lots and two June 2026 sales, each involving 50,000 shares.

Rhea-AI Filing Summary

ASP Isotopes, Inc. (ASPI) director Todd Wider filed a notice of proposed sale of 200,000 common shares through J.P. Morgan Securities LLC, with an aggregate market value listed as $590,000. The notice lists compensation as the acquisition basis for four common-share lots. It also reports sales of 50,000 shares on June 29 and 50,000 shares on June 30, 2026.

Key Figures

Proposed common shares for sale: 200,000 shares Aggregate market value: $590,000 Shares sold: 50,000 shares +3 more

6 metrics

Proposed common shares for sale 200,000 shares Notice names J.P. Morgan Securities LLC as broker

Aggregate market value $590,000 Listed for the proposed sale

Shares sold 50,000 shares June 29, 2026

Gross proceeds $312,470 Reported for the June 29, 2026 sale

Shares sold 50,000 shares June 30, 2026

Gross proceeds $306,210 Reported for the June 30, 2026 sale

Key Terms

Rule 144, attorney-in-fact

2 terms

Rule 144 regulatory

"Sales are required by paragraph (e) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

attorney-in-fact regulatory

"as agent and attorney-in-fact for Todd Wider"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many ASPI shares did Todd Wider propose to sell?

Todd Wider, a director of ASP Isotopes (ASPI), filed a notice covering a proposed sale of 200,000 common shares, with an aggregate market value listed as $590,000. J.P. Morgan Securities LLC is named as the broker.

What recent ASPI share sales did Todd Wider report?

Todd Wider reported sales of 50,000 shares on June 29, 2026, with gross proceeds of $312,470, and 50,000 shares on June 30, 2026, with gross proceeds of $306,210.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/25/2026 - 04:18 PM Accepted by SEC EDGAR 09/25/2026 - 04:08 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001642715
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ASP Isotopes, Inc.
SEC File Number	001-41555
Address of Issuer	601 Pennsylvania Avenue NW, South Building, Suite 900 Washington DISTRICT OF COLUMBIA 20004
Phone	2027562245
Name of Person for Whose Account the Securities are To Be Sold	Todd Wider
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	J.P. Morgan Securities LLC 270 Park Avenue 10th Fl New York NY 10017	200000	590000	153309380	09/25/2026	Nasdaq

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	11/24/2025	Compensation	Issuer			42522	11/24/2025	NA
Common	12/21/2023	Compensation	Issuer			8380	12/21/2023	NA
Common	11/15/2023	Compensation	Issuer			100000	11/15/2023	NA
Common	10/31/2023	Compensation	Issuer			49098	10/31/2023	NA

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Todd Wider 601 PENNSYLVANIA AVENUE NW SOUTH BUILDING, SUITE 900 WASHINGTON DC 20004	Common	06/29/2026	50000	312470
Todd Wider 601 PENNSYLVANIA AVENUE NW SOUTH BUILDING, SUITE 900 WASHINGTON DC 20004	Common	06/30/2026	50000	306210

144: Remarks and Signature

Remarks
Date of Notice	09/25/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Todd Wider
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)