MIAX (MIAX) insider files Form 144 to sell 63,902 shares after option exercise

Rhea-AI Filing Summary

MIAX insider-affiliated accounts filed a notice to sell common stock. The filing covers 63,902 common shares to be sold on the NYSE on or after August 4, 2026, with shares to be issued upon the cash exercise of stock options.

Recent Rule 10b5-1 plan sales for Harish Jayabalan included 20,000 shares on July 6, 2026 for an aggregate sale price of $842,308.38, 9,783 shares on June 9, 2026 for $391,752.41, and 10,217 shares on June 8, 2026 for $409,930.56.

Key Figures

Planned shares to be sold: 63,902 shares Recent 10b5-1 sale 1: 20,000 shares; $842,308.38 Recent 10b5-1 sale 2: 9,783 shares; $391,752.41 +2 more

5 metrics

Planned shares to be sold 63,902 shares Common stock to be sold on or after August 4, 2026 on NYSE

Recent 10b5-1 sale 1 20,000 shares; $842,308.38 MIAX common sold on July 6, 2026 under Rule 10b5-1 plan

Recent 10b5-1 sale 2 9,783 shares; $391,752.41 MIAX common sold on June 9, 2026 under Rule 10b5-1 plan

Recent 10b5-1 sale 3 10,217 shares; $409,930.56 MIAX common sold on June 8, 2026 under Rule 10b5-1 plan

Planned sale date August 4, 2026 Date for planned NYSE sale of 63,902 MIAX common shares

Key Terms

Form 144, Rule 10b5-1, Exercise of Stock Options, aggregate sale price

4 terms

Form 144 regulatory

"Form 144 discloses a planned sale of 63,902 MIAX common shares"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Rule 10b5-1 regulatory

"Recent Rule 10b5-1 plan sales for Harish Jayabalan included 20,000 shares"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

Exercise of Stock Options financial

"shares to be issued upon the cash exercise of stock options"

aggregate sale price financial

"20,000 shares on July 6, 2026 for an aggregate sale price of $842,308.38"

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 08/04/2026 - 04:33 PM Accepted by SEC EDGAR 08/04/2026 - 04:32 PM Learn about SEC filing dates

FAQ

What does the Form 144 filing for MIAX disclose?

The Form 144 discloses a planned sale of 63,902 MIAX common shares on the NYSE beginning August 4, 2026, following the cash exercise of stock options through Morgan Stanley Smith Barney LLC Executive Financial Services.

How many MIAX shares are covered for future sale in this Form 144?

The notice covers up to 63,902 MIAX common shares. These shares are expected to be issued upon the exercise of stock options for cash and may then be sold on the NYSE starting August 4, 2026.

What recent 10b5-1 plan sales are reported for MIAX insider Harish Jayabalan?

Reported Rule 10b5-1 sales include 20,000 shares on July 6, 2026, 9,783 shares on June 9, 2026, and 10,217 shares on June 8, 2026, all in MIAX common stock under a trading plan.

What aggregate proceeds were received from recent MIAX 10b5-1 sales?

Aggregate sale prices disclosed are $842,308.38 for 20,000 shares on July 6, 2026, $391,752.41 for 9,783 shares on June 9, 2026, and $409,930.56 for 10,217 shares on June 8, 2026.

Which broker is involved in the MIAX Form 144 share sale notice?

The filing identifies Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004, in connection with the 63,902 MIAX common shares to be sold on the NYSE.

On what date may the MIAX Form 144 shares begin trading on the NYSE?

The planned sale date for the 63,902 MIAX common shares is August 4, 2026. The shares are expected to be issued upon the cash exercise of stock options before or in connection with that date.

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	63902	2992530.66	94907086	08/04/2026	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	08/04/2026	Exercise of Stock Options	Issuer			63902	08/04/2026	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 HARISH JAYABALAN 7 Roszel Road, Suite 1A Princeton NJ 08540	Common	07/06/2026	20000	842308.38
10b5-1 Sales for HARISH JAYABALAN 7 Roszel Road, Suite 1A Princeton NJ 08540	Common	06/09/2026	9783	391752.41
10b5-1 Sales for HARISH JAYABALAN 7 Roszel Road, Suite 1A Princeton NJ 08540	Common	06/08/2026	10217	409930.56

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)