MARA Holdings, Inc. (MARA)
Nasdaq: MARA · Finance Services · Hallandale Beach, FL · filing with the SEC since 2010
Who owns MARA Holdings, Inc.
As filed with the SECHolders of 5% or more
2
Vanguard Portfolio Management holds 6.99% of Common Stock, as its SCHEDULE 13G filed Apr 29, 2026 says.
Directors and officers
11
report now, of 28 people on the record since 2012. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 2 named at left.
Holders of 5% or moreshare of the class, as filed
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Vanguard Capital Management
SCHEDULE 13G · filed Apr 30, 2026 · Common Stock
G1 Execution Services, LLC
SCHEDULE 13G/A · filed Nov 13, 2025 · Common Stock, $0.0001 par value per share · reported falling below 5%, from 5.3% in Aug 14, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%
What MARA reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
ADGM Entity
An investee · investee · invested in, named in the 10-K filed Mar 2, 2026
SAFE Investment
An investee · investee · invested in, named in the 10-K filed Mar 2, 2026
Arkon Acquisition
A company bought · acquisition · Oct 2024 · owns, named in the 10-K filed Mar 2, 2026
Garden City Acquisition
A company bought · acquisition · Mar 2024 · owns, named in the 10-K filed Mar 2, 2026
GC Data Center Acquisition
A company bought · acquisition · Dec 2023 · owns, named in the 10-K filed Mar 2, 2026
Wind Farm
A company bought · acquisition · owns, named in the 10-K filed Mar 2, 2026
44 subsidiaries in 7 countries, from the list filed with the 10-K filed Mar 2, 2026.
Insider tradesForm 4
34sales
0purchases
32sales on a scheduled plan
4people selling
$7.6Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 6, 2025 to Nov 6, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 6, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window4 of 30 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Thiel Frederick G | Chief Executive Officer | 13 | $3.8M | 13 | 0 | $0 |
| Khan Salman Hassan | Chief Financial Officer | 11 | $2.3M | 11 | 0 | $0 |
| Nowaid Zabi | General Counsel | 9 | $1.5M | 6 | 0 | $0 |
| Mellinger Douglas K | director | 2 | $100,000 | 2 | 0 | $0 |