Douglas K. Mellinger

CIK: 0001066960

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)13 (86.7%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (13.3%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MARA

MARA Holdings, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (15 total)

MARA
MARA Holdings, Inc.
Jun 22, 2026
Sale(S)
Direct
7K shares at avg. $16.00$112K
MARA
MARA Holdings, Inc.
Feb 13, 2026
Award(A)
Direct
82.8K shares-
MARA
MARA Holdings, Inc.
Nov 10, 2025
Sale(S)
Direct
1K shares at avg. $16.55$17K
MARA
MARA Holdings, Inc.
Oct 7, 2025
Sale(S)
Direct
1K shares at avg. $20.71$21K
MARA
MARA Holdings, Inc.
Sep 10, 2025
Sale(S)
Direct
1K shares at avg. $16.10$16K
MARA
MARA Holdings, Inc.
Aug 7, 2025
Sale(S)
Direct
1K shares at avg. $16.21$16K
MARA
MARA Holdings, Inc.
Jul 7, 2025
Sale(S)
Direct
1K shares at avg. $17.42$17K
MARA
MARA Holdings, Inc.
Jun 6, 2025
Sale(S)
Direct
1K shares at avg. $16.00$16K
MARA
MARA Holdings, Inc.
May 9, 2025
Sale(S)
Direct
3K shares at avg. $16.00$48K
MARA
MARA Holdings, Inc.
Feb 28, 2025
Award(A)
Direct
43.1K shares-
MARA
MARA Holdings, Inc.
Jan 13, 2025
Sale(S)
Direct
1K shares at avg. $17.00$17K
MARA
MARA Holdings, Inc.
Dec 12, 2024
Sale(S)
Direct
1K shares at avg. $23.80$24K
MARA
MARA Holdings, Inc.
Nov 12, 2024
Sale(S)
Direct
1K shares at avg. $24.06$24K
MARA
MARA Holdings, Inc.
Oct 14, 2024
Sale(S)
Direct
1K shares at avg. $16.77$17K
MARA
MARA Holdings, Inc.
Sep 12, 2024
Sale(S)
Direct
1K shares at avg. $16.00$16K

		Type	Shares	Price		Ownership
Jun 22, 2026	MARA MARA Holdings, Inc.	Sale(S)	7,000	$16.00	$112,000	Direct
Feb 13, 2026	MARA MARA Holdings, Inc.	Award(A)	82,759	-	$0	Direct
Nov 10, 2025	MARA MARA Holdings, Inc.	Sale(S)	1,000	$16.55	$16,550	Direct
Oct 7, 2025	MARA MARA Holdings, Inc.	Sale(S)	1,000	$20.71	$20,710	Direct
Sep 10, 2025	MARA MARA Holdings, Inc.	Sale(S)	1,000	$16.10	$16,100	Direct
Aug 7, 2025	MARA MARA Holdings, Inc.	Sale(S)	1,000	$16.21	$16,210	Direct
Jul 7, 2025	MARA MARA Holdings, Inc.	Sale(S)	1,000	$17.42	$17,420	Direct
Jun 6, 2025	MARA MARA Holdings, Inc.	Sale(S)	1,000	$16.00	$16,000	Direct
May 9, 2025	MARA MARA Holdings, Inc.	Sale(S)	3,000	$16.00	$48,000	Direct
Feb 28, 2025	MARA MARA Holdings, Inc.	Award(A)	43,103	-	-	Direct
Jan 13, 2025	MARA MARA Holdings, Inc.	Sale(S)	1,000	$17.00	$17,000	Direct
Dec 12, 2024	MARA MARA Holdings, Inc.	Sale(S)	1,000	$23.80	$23,800	Direct
Nov 12, 2024	MARA MARA Holdings, Inc.	Sale(S)	1,000	$24.06	$24,060	Direct
Oct 14, 2024	MARA MARA Holdings, Inc.	Sale(S)	1,000	$16.77	$16,770	Direct
Sep 12, 2024	MARA MARA Holdings, Inc.	Sale(S)	1,000	$16.00	$16,000	Direct

1-15 of 15 transactions

About MELLINGER DOUGLAS K

MELLINGER DOUGLAS K (SEC CIK 0001066960) files insider reports with the SEC as Director of MARA Holdings, Inc. (MARA).

Signal8 holds 15 ownership filings by MELLINGER DOUGLAS K, all Form 4s, filed between Sep 16, 2024 and Jun 24, 2026. Those filings report 15 transactions, from Sep 12, 2024 to Jun 22, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on MELLINGER DOUGLAS K's filings is in HALLANDALE BEACH, FL.

Recent filings by MELLINGER DOUGLAS K

Jun 22, 2026: Open-market sale of MARA shares (Form 4, code S).
Feb 13, 2026: Grant or award of MARA shares (Form 4, code A).
Nov 10, 2025: Open-market sale of MARA shares (Form 4, code S).
Oct 7, 2025: Open-market sale of MARA shares (Form 4, code S).
Sep 10, 2025: Open-market sale of MARA shares (Form 4, code S).

Other insiders filing for MARA Holdings, Inc. (MARA)

Khan Salman Hassan, Chief Financial Officer
Nowaid Zabi, General Counsel
Thiel Frederick G, Chief Executive Officer
Novak Nancy K., Director
Hart Craig A., Director
Mealer-Burke Vicki, Director

How to read Form 4 transaction codes