Planned MIAX (MIAX) Rule 144 sale covers 15,000 common shares

Rhea-AI Filing Summary

A shareholder filed a Form 144 notice to sell 15,000 shares of common stock on 07/15/2026 through Morgan Stanley Smith Barney LLC on the NYSE, with aggregate market value of 619500.00. The filing also lists prior 10b5-1 sales of 19,500 shares for 813768.15 on 06/11/2026.

Key Figures

Shares proposed for sale: 15000 Aggregate market value of proposed sale: 619500.00 CUSIP of security: 94907086 +3 more

6 metrics

Shares proposed for sale 15000 Number of common shares to be sold under Form 144

Aggregate market value of proposed sale 619500.00 Aggregate market value of the 15000 shares to be sold

CUSIP of security 94907086 CUSIP associated with the common stock to be sold

Planned sale date 07/15/2026 Date of the proposed sale of 15000 shares on the NYSE

Shares sold in prior 3 months 19500 Amount of common shares sold on 06/11/2026 under a 10b5-1 plan

Proceeds from prior sale 813768.15 Total value of the 19500 shares sold on 06/11/2026

Key Terms

10b5-1, Exercise of Stock Options, Executive Financial Services

3 terms

10b5-1 financial

"10b5-1 Sales for CYNTHIA SCHWARZKOPF 7 Roszel Road, Suite 1A Princeton NJ 08540"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Exercise of Stock Options financial

"Common | 07/15/2026 | Exercise of Stock Options | Issuer"

Executive Financial Services financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

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Available on EDGAR 07/15/2026 - 04:31 PM Accepted by SEC EDGAR 07/15/2026 - 04:30 PM Learn about SEC filing dates

FAQ

What does the MIAX Form 144 filing disclose?

It reports a planned sale of 15,000 common shares on 07/15/2026 through Morgan Stanley Smith Barney LLC on the NYSE, valued at 619500.00, and also notes prior 10b5-1 sales of 19,500 shares for 813768.15 on 06/11/2026. This information appears in a Form 144 notice of proposed sale.

How many MIAX shares are planned to be sold and what is their value?

The Form 144 notice covers a proposed sale of 15,000 shares of common stock with an aggregate market value of 619500.00. These shares are to be sold through Morgan Stanley Smith Barney LLC on the NYSE on or about 07/15/2026.

What prior MIAX share sales in the last three months are disclosed?

The filing discloses earlier 10b5-1 sales of 19,500 shares of common stock on 06/11/2026, with total proceeds of 813768.15. This section summarizes securities sold during the past three months in connection with the same seller.

How will the MIAX shares be acquired and paid for before the Form 144 sale?

The securities to be sold are linked to an Exercise of Stock Options dated 07/15/2026, acquired from the issuer and to be paid for in cash. This indicates the seller will exercise options and then sell the resulting common shares.

Who is associated with the 10b5-1 MIAX stock sales mentioned in the Form 144?

The section on securities sold during the past three months references “10b5-1 Sales for CYNTHIA SCHWARZKOPF” at a Princeton, NJ address. It notes the sale of 19,500 common shares on 06/11/2026 for total proceeds of 813768.15.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	15000	619500.00	94907086	07/15/2026	NYSE

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	07/15/2026	Exercise of Stock Options	Issuer			15000	07/15/2026	Cash

* 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
10b5-1 Sales for CYNTHIA SCHWARZKOPF 7 Roszel Road, Suite 1A Princeton NJ 08540	Common	06/11/2026	19500	813768.15

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)