MARA Holdings
A U.S. digital-asset technology company focused on large-scale Bitcoin and other cryptocurrency mining.
Last updated August 25, 2026
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Overview
MARA Holdings, Inc. is a United States-based digital-asset technology and cryptocurrency-mining company headquartered in Hallandale Beach, Florida. The company began in 2010 as Marathon Patent Group, a patent-holding business that acquired intellectual-property rights and pursued licensing and infringement litigation through subsidiaries including Uniloc. Its early identity was therefore closer to an intellectual-property investment and enforcement vehicle than to a technology infrastructure operator. During the late 2010s, Marathon shifted its strategic focus toward blockchain infrastructure, digital assets, and cryptocurrency mining. The transition culminated in the March 2021 adoption of the name Marathon Digital Holdings, which reflected the company's move away from its patent-oriented origins. It subsequently developed a large-scale mining model involving the acquisition of Bitcoin, mining hardware, and operating or partnering in facilities designed to provide substantial computing capacity. One of the company's most visible infrastructure projects involved a joint venture associated with the Hardin Generating Station in Montana. The arrangement used 37 megawatts of power from the coal-fired facility for an adjacent Bitcoin data center. The project illustrated Marathon's emphasis on industrial-scale energy access, while also exposing the company to criticism concerning environmental impact, regulatory disclosure, investor communications, and the social effects of cryptocurrency mining. In December 2023, the company expanded its owned operating footprint by acquiring two Bitcoin-mining facilities from subsidiaries of Generate Capital for $178.6 million. The transaction strengthened its position as an operator rather than solely an investor in digital assets and mining equipment. On August 29, 2024, the company adopted the name MARA Holdings, Inc., establishing the current corporate identity. MARA is described as one of the world's largest publicly traded Bitcoin and Kaspa miners. It also holds Bitcoin as a significant corporate treasury asset and has been characterized as the second-largest corporate holder of Bitcoin as of August 2025, with 50,639 BTC reported on its balance sheet at that time. Its activities span digital-asset accumulation, mining-facility development and operation, procurement of specialized mining hardware, and related blockchain infrastructure. The business remains exposed to cryptocurrency prices, network difficulty, energy costs, equipment availability, regulatory developments, litigation, and public concerns about mining-related noise and environmental effects.
History
MARA Holdings was incorporated on February 23, 2010, under the name Marathon Patent Group. Based in Fort Lauderdale, Florida, the company initially operated as a patent-holding enterprise. Through its subsidiary Uniloc, it acquired patents, including patents relating to encryption technology, and pursued licensing and infringement claims against technology companies. This activity led to criticism of the company as a patent troll because its model was associated with acquiring intellectual property primarily to enforce it against alleged infringers rather than to commercialize products. During the late 2010s, the company redirected its strategy toward blockchain infrastructure and digital assets. The change reflected a broader corporate decision to participate in cryptocurrency markets through mining, equipment purchases, facility development, and direct Bitcoin ownership. By 2021, the company had become known for acquiring Bitcoin and mining equipment and for pursuing industrial-scale computing capacity. A prominent part of this period was a joint venture connected with the Hardin Generating Station in Montana. The project used 37 megawatts from the coal-fired power plant to supply an adjacent Marathon Bitcoin data center. The arrangement drew attention to the energy intensity of cryptocurrency mining and later became connected to regulatory and investor-disclosure issues. In November 2021, Marathon disclosed receipt of an SEC subpoena concerning the issuance of six million shares associated with the project. Investor class-action litigation alleged that the company had made misleading statements about the venture and related regulatory risks. Those suits were voluntarily dismissed in October 2022, although the episode was associated with a substantial decline in the company's stock price. On March 1, 2021, Marathon Patent Group changed its name to Marathon Digital Holdings. The renaming formalized the move away from patent ownership and toward cryptocurrency mining and digital-asset infrastructure. In May of that year, the company announced plans for a Bitcoin-mining pool described as fully compliant. Its proposed software would have filtered transactions connected with entities on the U.S. Office of Foreign Assets Control sanctions list. Bitcoin users and advocates criticized the plan as incompatible with the network's permissionless and censorship-resistant design. Marathon reversed the policy later in May and stated that it would no longer filter transactions in that manner. The company continued expanding its physical mining operations. In December 2023, it acquired two operational Bitcoin-mining facilities from subsidiaries of Generate Capital for $178.6 million. The deal increased its owned operating capacity and reinforced its positioning as an infrastructure operator. In July 2024, a California federal jury found Marathon liable for $138 million in damages in a dispute with investor Michael Ho. The case concerned an alleged breach of a non-circumvention agreement and the use of proprietary information relating to a Bitcoin-mining strategy provided in 2020. Marathon said it respected the verdict while disputing both the jury's conclusions and the legal basis for the damages. Also in 2024, public concern about mining impacts became prominent in Texas. A Time investigation described noise and health complaints from residents near a Marathon Bitcoin-mining facility in Granbury, with residents attributing reported problems to the operation. On August 29, 2024, the company adopted the current name MARA Holdings, Inc. The new name created a shorter corporate identity while retaining the MARA brand associated with its publicly traded digital-asset business. As of August 2025, MARA was described as one of the largest publicly traded Bitcoin and Kaspa miners and the second-largest corporate holder of Bitcoin. Its reported balance sheet included 50,639 BTC at that time. The company's history therefore encompasses three distinct phases: patent acquisition and enforcement, a strategic migration into blockchain and cryptocurrency activity, and the development of a large publicly traded digital-asset mining and treasury platform. Its continuing risks include cryptocurrency-market volatility, mining economics, power availability and pricing, regulatory scrutiny, litigation, environmental concerns, and community opposition to facility noise.
- 2025
Reported among the largest corporate Bitcoin holders
[1]As of August 2025, the company was described as the second-largest corporate holder of Bitcoin, reporting 50,639 BTC on its balance sheet.
- 2024
Rebranded as MARA Holdings
[1]On August 29, the company adopted the name MARA Holdings, Inc.
- 2023
Two mining facilities acquired from Generate Capital subsidiaries
[1]MARA expanded its mining footprint through a $178.6 million acquisition of two operating Bitcoin-mining facilities.
- 2021
Name changed to Marathon Digital Holdings
[1]The March 1 name change reflected the strategic shift from patent activities toward blockchain infrastructure and digital assets.
- 2021
Hardin Bitcoin data-center project comes under scrutiny
[1]The Montana project used 37 megawatts from the Hardin Generating Station and later became associated with SEC inquiries and investor litigation.
- 2010
Marathon Patent Group incorporated
[1]The company was incorporated on February 23, 2010, as a patent-holding company headquartered in Florida.
Products and positioning
A publicly traded, industrial-scale digital-asset infrastructure company combining cryptocurrency mining, mining-facility ownership or operation, specialized hardware procurement, and corporate holdings of Bitcoin and other digital assets.
Cryptocurrency mining
Bitcoin mining
MARA's principal operating activity is industrial-scale Bitcoin mining. The business uses specialized computing equipment and data-center infrastructure to process transactions and compete for block rewards. Its economics depend on Bitcoin prices, network difficulty, hardware efficiency, electricity costs, facility availability, and regulation.
Cryptocurrency mining
Kaspa mining
The company is also described as a major publicly traded Kaspa miner. This activity extends its digital-asset mining exposure beyond Bitcoin and involves the deployment of mining capacity toward another proof-of-work cryptocurrency.
Digital-asset infrastructure
Mining facilities and data centers
MARA develops, acquires, operates, or partners in facilities that house cryptocurrency-mining equipment. The Hardin project and the later acquisition of two Generate Capital facilities illustrate its emphasis on access to power, physical sites, and large computing capacity.
Digital-asset holdings
Corporate Bitcoin treasury
MARA purchases and holds Bitcoin as a corporate asset. This treasury strategy makes the company both a mining operator and a significant publicly traded corporate holder of cryptocurrency, with balance-sheet value directly affected by digital-asset prices.
Controversies
2024
Michael Ho non-circumvention dispute
A California federal jury found Marathon liable for $138 million in a dispute over alleged use of proprietary Bitcoin-mining information supplied by investor Michael Ho. Marathon disputed the verdict's findings and damages basis.
2024
Community complaints regarding Granbury mining facility
Residents near a Marathon facility in Granbury, Texas, reported noise and health complaints in an investigation published by Time and attributed the problems to nearby Bitcoin-mining activity.
2022
Securities class action announced against Marathon Digital Holdings
Kuznicki Law PLLC announced a securities class action on behalf of shareholders of Marathon Digital Holdings, alleging that false or misleading statements or omissions of material information led to artificial inflation of the company's stock. The notice said shareholders could file lead plaintiff applications by February 15, 2022.
2021
Patent-troll criticism
In its earlier Marathon Patent Group period, the company and its Uniloc subsidiary were criticized for acquiring patents and using litigation against technology firms, leading to a negative reputation as a non-practicing patent enforcer.
2021
SEC inquiry and investor litigation involving the Hardin project
The company disclosed an SEC subpoena concerning six million shares linked to the Montana project. Investor suits alleged misleading statements about the venture and its regulatory risks; the cases were voluntarily dismissed in October 2022.
Marketing campaigns
- 2021Fully compliant Bitcoin-mining pool
United States · Bitcoin ecosystem
MARA announced a mining pool intended to comply with sanctions rules by filtering transactions associated with entities on the OFAC list.
Outcome. Following strong criticism from Bitcoin advocates, the company abandoned the transaction-filtering approach later in May 2021.
Brand decisions
2024
Rebrand as MARA HoldingsStrategyBackground
The Marathon Digital Holdings name reflected the company's cryptocurrency-mining focus but was replaced as the business broadened its digital-asset identity.
Action taken
The company adopted the name MARA Holdings, Inc. on August 29, 2024.
Aftermath
MARA became the company's principal corporate and market-facing identity.
2023
Acquisition of two operational mining facilitiesM&ABackground
MARA sought to increase owned mining capacity and control over its physical infrastructure.
Action taken
The company acquired two facilities from subsidiaries of Generate Capital.
Aftermath
The transaction expanded the company's operating footprint and reinforced its industrial mining strategy.
Acquisition price. $178.6 million (December 2023)
2021
Pivot from patents to digital assetsStrategyBackground
The company sought a new growth direction after operating as a patent-holding and enforcement business.
Action taken
It redirected resources toward blockchain infrastructure, cryptocurrency mining, mining equipment, and Bitcoin holdings.
Aftermath
The pivot led to the Marathon Digital Holdings name and established the business model that later became MARA Holdings.
2021
Launch proposal for a compliant mining poolProduct launchBackground
MARA sought to position a mining pool as compliant with U.S. sanctions requirements.
Action taken
It proposed filtering transactions involving sanctioned entities, then reversed the policy after community backlash.
Aftermath
The reversal removed the proposed transaction-filtering model but highlighted the tension between regulatory compliance and Bitcoin's censorship-resistant ethos.
Recent events
Securities class action announced against Marathon Digital Holdings[2]
Reported:
Kuznicki Law PLLC announced a securities class action on behalf of shareholders of Marathon Digital Holdings, alleging that false or misleading statements or omissions of material information led to artificial inflation of the company's stock. The notice said shareholders could file lead plaintiff applications by February 15, 2022.
Marathon announces executive chairman succession plan[3]
Reported:
Marathon Digital Holdings announced that Executive Chairman Merrick Okamoto planned to retire at the end of 2021 and that its board appointed CEO Fred Thiel to succeed him as chairman on January 1, 2022.
Sources3 sources
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