Largest Public Bitcoin Miner MARA Holdings To Raise $850M for BTC

MARA Holdings, the world’s largest public Bitcoin miner, has announced plans to continue its aggressive BTC accumulation with massive funding. Earlier today, the digital energy and infrastructure company revealed plans for an $850 million raise through a private offering of zero-coupon convertible senior notes due in 2032.

MARA Holdings Raises $850M to Accumulate Bitcoin

In a recent press release, MARA Holdings drew the Bitcoin enthusiasts’ attention to the company’s latest $850 million BTC deal. The BTC miner intends to raise this huge amount through a private placement of zero-coupon convertible senior notes.

As per a SEC filing on Wednesday, the offering is open only to qualified institutional buyers and allows initial purchasers to buy an additional $150 million in notes, potentially increasing the total fundraising to $1 billion. $50 million of the proceeds will go towards repurchasing a portion of the company’s 2026 convertible notes. The rest of the funds will be allocated towards buying back debt, capped call transactions, accumulating Bitcoin, and general corporate purposes. The firm stated,

MARA also expects to grant to the initial purchasers of the notes an option to purchase, within a 13-day period beginning on, and including, the date on which the notes are first issued, up to an additional $150 million aggregate principal amount of the notes. The offering is subject to market and other conditions, and there can be no assurance as to whether, when or on what terms the offering may be completed.

Despite this significant development, the MARA Holdings stock (MARA) price dipped by a notable 5.79%. However, with a premarket price of $18.73 and a closing price of $19.88, the stock price has seen notable surges of 5% and 38% over the past five days and 30 days, respectively.

MARA Leads Bitcoin Mining and Holding

Notably, MARA Holdings is the world’s largest public Bitcoin miner and holds the second-largest public stash of BTC, with 50,000 coins worth $5.9 billion, surpassed only by Michael Saylor’s MicroStrategy. As CoinGape reported, it was in May 2025 that MARA expanded its BTC portfolio to 50k.

Previously, in January, the platform declared its ambitious plans to support Donald Trump’s Bitcoin Reserve Strategy. As CoinGape reported, CEO Fred Thiel said that the company’s primary focus is now on expanding the SBR initiative to all 50 states and the federal government.

In an SEC filing today, MARA Holdings also revealed its Bitcoin mining updates as of June 30, 2025. Reportedly, the company boasts approximately 310,000 energized miners across all its locations. During the second quarter of 2025, MARA mined 2,358 BTC, averaging 25.9 coins per day. This accounts for 5.7% of available miner rewards.

As per the filing, the company’s total Bitcoin holdings stood at 49,95, including those loaned, collateralized, or under asset management. MARA won 694 bitcoin blocks in the quarter and 1,360 blocks in the first half of 2025, producing 4,644 coins during this period.

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Nynu V Jamal

Nynu V Jamal is a Senior Journalist at CoinGape. She boasts more than 3 years of experience in content writing, with expertise in crypto and blockchain. She has contributed to platforms like CoinEdition and CryptoTale, demonstrating her proficiency in navigating the dynamic crypto landscape.

Beyond her journalistic pursuits, Nynu is a literary enthusiast, having served as an Assistant Professor of English Language and Literature. She is a Master’s degree holder in English Literature and a UGC NET qualifier. Her academic background has enabled her to publish research papers on literature, while also nurturing her creative side as a published poet.

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