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[Form 4] MARA Holdings, Inc. Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Negative)
Form Type
4
Rhea-AI Filing Summary

Douglas K. Mellinger, a director of MARA Holdings, Inc., sold 1,000 shares of common stock on 08/07/2025 at $16.21 per share. The Form 4 reports the sale was effected pursuant to a Rule 10b5-1 trading plan that the reporting person adopted on March 6, 2025, indicating the transaction followed a pre-established plan rather than a discretionary trade.

After the reported disposition, Mr. Mellinger is shown as beneficially owning 173,859 shares as direct ownership. The disclosure is limited to this single non-derivative sale and the plan explanation provided in the filing.

Douglas K. Mellinger, amministratore di MARA Holdings, Inc., ha venduto 1,000 azioni ordinarie in data 08/07/2025 al prezzo di $16.21 per azione. Il modulo Form 4 segnala che la vendita 猫 stata eseguita nell'ambito di un piano di negoziazione ai sensi della Rule 10b5-1 adottato dalla persona segnalante il 6 marzo 2025, indicando che la transazione 猫 avvenuta secondo un piano prestabilito e non per decisione discrezionale.

Dopo la disposizione comunicata, il signor Mellinger risulta titolare effettivo di 173,859 azioni come propriet脿 diretta. La comunicazione si limita a questa unica vendita non derivata e alla spiegazione del piano riportata nel deposito.

Douglas K. Mellinger, miembro del directorio de MARA Holdings, Inc., vendi贸 1,000 acciones ordinarias el 08/07/2025 a $16.21 por acci贸n. El Form 4 informa que la venta se realiz贸 en virtud de un plan de negociaci贸n conforme a la Regla 10b5-1 que la persona informante adopt贸 el 6 de marzo de 2025, lo que indica que la operaci贸n sigui贸 un plan preestablecido y no fue una decisi贸n discrecional.

Tras la disposici贸n informada, el se帽or Mellinger figura como titular beneficiario de 173,859 acciones en propiedad directa. La divulgaci贸n se limita a esta 煤nica venta no derivada y a la explicaci贸n del plan incluida en la presentaci贸n.

Douglas K. Mellinger電� MARA Holdings, Inc.鞚� 鞚挫偓搿滌劀 08/07/2025鞐� 氤错喌欤� 1,000欤茧ゼ 欤茧嫻 $16.21鞐� 毵る弰頄堨姷雼堧嫟. Form 4鞐愲姅 頃措嫻 瓯半灅臧 氤搓碃鞚胳澊 2025雲� 3鞗� 6鞚� 毂勴儩頃� 攴滌箼 10b5-1(Rule 10b5-1)鞐� 霐半ジ 瓯半灅瓿勴殟鞐� 鞚橅暣 靾橅枆霅橃棃鞚岇澊 旮办灛霅橃柎 鞛堨柎, 氤� 瓯半灅臧 鞛勳潣鞝� 毵るГ臧 鞎勲媹霛� 靷爠 靹れ爼霅� 瓿勴殟鞐� 霐半ジ 瓴冹瀯鞚� 雮橅儉雰呺媹雼�.

氤搓碃霅� 觳橂秳 鞚错泟 Mellinger 鞌姅 歆侅爲 靻岇湢攵勳溂搿滌劀 173,859欤茧ゼ 鞁れ唽鞙犿暅 瓴冹溂搿� 響滌嫓霅╇媹雼�. 瓿奠嫓電� 鞚� 雼澕 牍勴寣靸� 毵る弰 瓯搓臣 靹滊鞐� 旮办灛霅� 瓿勴殟 靹る獏鞙茧 鞝滍暅霅╇媹雼�.

Douglas K. Mellinger, administrateur de MARA Holdings, Inc., a vendu 1,000 actions ordinaires le 08/07/2025 au prix de $16.21 par action. Le Form 4 indique que la vente a 茅t茅 effectu茅e en vertu d鈥檜n plan de n茅gociation Rule 10b5-1 adopt茅 par la personne d茅clarante le 6 mars 2025, ce qui signifie que la transaction s鈥檈st d茅roul茅e selon un plan pr茅茅tabli et non par d茅cision discr茅tionnaire.

Apr猫s la cession d茅clar茅e, M. Mellinger est indiqu茅 comme d茅tenant b茅n茅ficiairement 173,859 actions en propri茅t茅 directe. La divulgation se limite 脿 cette seule cession non d茅riv茅e et 脿 l鈥檈xplication du plan fournie dans le d茅p么t.

Douglas K. Mellinger, ein Direktor von MARA Holdings, Inc., verkaufte am 08/07/2025 1,000 Stammaktien zu $16.21 pro Aktie. Im Formular 4 wird berichtet, dass der Verkauf gem盲脽 einem Rule-10b5-1-Handelsplan erfolgte, den die meldepflichtige Person am 6. M盲rz 2025 angenommen hatte, was darauf hinweist, dass es sich um einen zuvor festgelegten Plan und nicht um einen diskretion盲ren Handel handelte.

Nach der gemeldeten Ver盲u脽erung wird Herr Mellinger als wirtschaftlicher Eigent眉mer von 173,859 Aktien als Direktbesitz ausgewiesen. Die Offenlegung beschr盲nkt sich auf diesen einzelnen nicht-derivativen Verkauf und die im Einreichungsdokument gegebene Planerkl盲rung.

Positive
  • None.
Negative
  • None.

Insights

Director executed a Rule 10b5-1 sale of 1,000 shares; impact appears neutral.

The Form 4 shows a non-derivative sale of 1,000 shares at $16.21 on 08/07/2025, with 173,859 shares remaining beneficially owned. Because the sale was made under a Rule 10b5-1 plan adopted on March 6, 2025, it reflects a pre-arranged disposition rather than an ad hoc insider sale. The disclosure is concise and contains no additional transactions or derivative activity to suggest a material change in ownership or position.

Use of a 10b5-1 plan reduces potential governance concerns; the sale size is modest.

The reporting person is identified as a Director, and the filing clarifies the sale was governed by a Rule 10b5-1 trading plan, which can mitigate concerns about opportunistic insider trading. The transaction quantity (1,000 shares) and the reported post-transaction holding (173,859 shares) are presented without indication of additional related-party transfers or changes in control, so this filing alone does not raise significant governance flags.

Douglas K. Mellinger, amministratore di MARA Holdings, Inc., ha venduto 1,000 azioni ordinarie in data 08/07/2025 al prezzo di $16.21 per azione. Il modulo Form 4 segnala che la vendita 猫 stata eseguita nell'ambito di un piano di negoziazione ai sensi della Rule 10b5-1 adottato dalla persona segnalante il 6 marzo 2025, indicando che la transazione 猫 avvenuta secondo un piano prestabilito e non per decisione discrezionale.

Dopo la disposizione comunicata, il signor Mellinger risulta titolare effettivo di 173,859 azioni come propriet脿 diretta. La comunicazione si limita a questa unica vendita non derivata e alla spiegazione del piano riportata nel deposito.

Douglas K. Mellinger, miembro del directorio de MARA Holdings, Inc., vendi贸 1,000 acciones ordinarias el 08/07/2025 a $16.21 por acci贸n. El Form 4 informa que la venta se realiz贸 en virtud de un plan de negociaci贸n conforme a la Regla 10b5-1 que la persona informante adopt贸 el 6 de marzo de 2025, lo que indica que la operaci贸n sigui贸 un plan preestablecido y no fue una decisi贸n discrecional.

Tras la disposici贸n informada, el se帽or Mellinger figura como titular beneficiario de 173,859 acciones en propiedad directa. La divulgaci贸n se limita a esta 煤nica venta no derivada y a la explicaci贸n del plan incluida en la presentaci贸n.

Douglas K. Mellinger電� MARA Holdings, Inc.鞚� 鞚挫偓搿滌劀 08/07/2025鞐� 氤错喌欤� 1,000欤茧ゼ 欤茧嫻 $16.21鞐� 毵る弰頄堨姷雼堧嫟. Form 4鞐愲姅 頃措嫻 瓯半灅臧 氤搓碃鞚胳澊 2025雲� 3鞗� 6鞚� 毂勴儩頃� 攴滌箼 10b5-1(Rule 10b5-1)鞐� 霐半ジ 瓯半灅瓿勴殟鞐� 鞚橅暣 靾橅枆霅橃棃鞚岇澊 旮办灛霅橃柎 鞛堨柎, 氤� 瓯半灅臧 鞛勳潣鞝� 毵るГ臧 鞎勲媹霛� 靷爠 靹れ爼霅� 瓿勴殟鞐� 霐半ジ 瓴冹瀯鞚� 雮橅儉雰呺媹雼�.

氤搓碃霅� 觳橂秳 鞚错泟 Mellinger 鞌姅 歆侅爲 靻岇湢攵勳溂搿滌劀 173,859欤茧ゼ 鞁れ唽鞙犿暅 瓴冹溂搿� 響滌嫓霅╇媹雼�. 瓿奠嫓電� 鞚� 雼澕 牍勴寣靸� 毵る弰 瓯搓臣 靹滊鞐� 旮办灛霅� 瓿勴殟 靹る獏鞙茧 鞝滍暅霅╇媹雼�.

Douglas K. Mellinger, administrateur de MARA Holdings, Inc., a vendu 1,000 actions ordinaires le 08/07/2025 au prix de $16.21 par action. Le Form 4 indique que la vente a 茅t茅 effectu茅e en vertu d鈥檜n plan de n茅gociation Rule 10b5-1 adopt茅 par la personne d茅clarante le 6 mars 2025, ce qui signifie que la transaction s鈥檈st d茅roul茅e selon un plan pr茅茅tabli et non par d茅cision discr茅tionnaire.

Apr猫s la cession d茅clar茅e, M. Mellinger est indiqu茅 comme d茅tenant b茅n茅ficiairement 173,859 actions en propri茅t茅 directe. La divulgation se limite 脿 cette seule cession non d茅riv茅e et 脿 l鈥檈xplication du plan fournie dans le d茅p么t.

Douglas K. Mellinger, ein Direktor von MARA Holdings, Inc., verkaufte am 08/07/2025 1,000 Stammaktien zu $16.21 pro Aktie. Im Formular 4 wird berichtet, dass der Verkauf gem盲脽 einem Rule-10b5-1-Handelsplan erfolgte, den die meldepflichtige Person am 6. M盲rz 2025 angenommen hatte, was darauf hinweist, dass es sich um einen zuvor festgelegten Plan und nicht um einen diskretion盲ren Handel handelte.

Nach der gemeldeten Ver盲u脽erung wird Herr Mellinger als wirtschaftlicher Eigent眉mer von 173,859 Aktien als Direktbesitz ausgewiesen. Die Offenlegung beschr盲nkt sich auf diesen einzelnen nicht-derivativen Verkauf und die im Einreichungsdokument gegebene Planerkl盲rung.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a 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). See Instruction 10.
1. Name and Address of Reporting Person*
MELLINGER DOUGLAS K

(Last) (First) (Middle)
C/O MARA HOLDINGS, INC.
1010 SOUTH FEDERAL HIGHWAY, SUITE 2700

(Street)
HALLANDALE BEACH FL 33009

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
MARA Holdings, Inc. [ MARA ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
08/07/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 08/07/2025 S(1) 1,000 D $16.21 173,859 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2025.
/s/ Zabi Nowaid, Attorney-in-Fact for Douglas K. Mellinger 08/08/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider activity was reported for MARA on this Form 4?

The Form 4 reports that director Douglas K. Mellinger sold 1,000 shares of MARA common stock.

At what price were the MARA shares sold in the reported transaction?

The report lists the sale price as $16.21 per share.

Was the sale part of a trading plan or a discretionary trade?

The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2025.

How many MARA shares does the reporting person own after the sale?

Following the reported transaction, the filing shows 173,859 shares beneficially owned (direct).

Who filed the Form 4 on behalf of the reporting person?

The Form 4 indicates it was signed by an attorney-in-fact acting for Douglas K. Mellinger, as shown in the filing.
MARA Holdings Inc

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United States
HALLANDALE BEACH