MARA insider sale notice: 27,505 shares via Fidelity, prior June/July sales

Rhea-AI Filing Summary

Form 144 notice for MARA (MARA) discloses a proposed sale of 27,505 common shares through Fidelity Brokerage Services with an aggregate market value of $420,276.40, scheduled approximately 08/18/2025. The shares were acquired on 11/16/2023 via restricted stock vesting and were received as compensation. The filer reports two prior sales by The Thiel Living Trust of 27,505 shares on 06/16/2025 (gross proceeds $420,826.50) and 07/16/2025 (gross proceeds $536,897.60). The form includes the required attestation about absence of undisclosed material adverse information.

Positive

• Discloses acquisition method: shares were acquired via restricted stock vesting on 11/16/2023
• Broker identified: Fidelity Brokerage Services LLC is named for execution
• Prior sales disclosed: two sales in June and July 2025 with exact proceeds, showing transparency

Negative

• Insider selling continuity: identical 27,505-share blocks sold in June and July 2025 and another planned in August 2025, indicating ongoing disposals

Insights

Financial Analyst

TL;DR: Routine insider sale disclosure; amounts are small relative to shares outstanding and reflect vested compensation.

The filing documents a proposed sale of 27,505 common shares acquired via restricted stock vesting on 11/16/2023. The next planned sale has an aggregate market value of $420,276.40 and is to be executed through Fidelity. Two recent sales of identical share amounts occurred on 06/16/2025 and 07/16/2025 with gross proceeds of $420,826.50 and $536,897.60 respectively. These are transactional disclosures rather than operational updates; impact on equity supply is minimal given 370,457,880 shares outstanding.

Corporate Governance Expert

TL;DR: The filing fulfills Rule 144 disclosure for insider sales and notes a representation regarding material non-public information.

The form specifies acquisition via restricted stock vesting and sale execution through a registered broker, and it repeats the standard signer representation that no undisclosed material adverse information exists. The repetition of identical share blocks sold in consecutive months suggests a planned or systematic disposition of vested shares, disclosed per filing requirements; no governance violations or missing signatures are evident in the provided text.

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

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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	27505	420276.40	370457880	08/18/2025	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	11/16/2023	Restricted Stock Vesting	Issuer			27505	11/16/2023	Compensation

* 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
The Thiel Living Trust 1010 South Federal Highway Suite 2700 Hallandale Beach FL 33009	Common	06/16/2025	27505	420826.50
The Thiel Living Trust 1010 South Federal Highway Suite 2700 Hallandale Beach FL 33009	Common	07/16/2025	27505	536897.60

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)

FAQ

What does the MARA Form 144 disclose?

The filing discloses a proposed sale of 27,505 common shares of MARA with an aggregate market value of $420,276.40, to be sold through Fidelity around 08/18/2025.

How were the shares acquired according to the filing?

The shares were acquired on 11/16/2023 through restricted stock vesting and recorded as compensation.

Who executed prior sales of MARA shares for this account?

Prior sales were executed by The Thiel Living Trust, selling 27,505 shares on 06/16/2025 and 07/16/2025 for gross proceeds of $420,826.50 and $536,897.60 respectively.

What broker will handle the proposed sale?

The broker listed is Fidelity Brokerage Services LLC, located at the address shown in the filing.

How does the sale size compare to outstanding shares?

The proposed 27,505-share sale is compared with 370,457,880 shares outstanding as reported in the form.

Does the filer attest to material non-public information?

Yes, the filer represents by signing the notice that they do not know of any material adverse information about the issuer that has not been publicly disclosed.