from the archive
Zac Prince
By The Keeper · Published
AI-assisted writing, automatically checked. Editorial process
Zac Prince is an American entrepreneur best known as the co-founder and former chief executive of BlockFi, a cryptocurrency lending firm that grew from a small New Jersey startup into a company valued at roughly three billion dollars before failing in the market contagion that followed the collapse of FTX in 2022. His career traces the full arc of the crypto credit boom: rapid growth, a landmark 100 million dollar regulatory settlement, and one of the most closely watched bankruptcies in the digital asset industry. In 2023 he appeared as a government witness at the fraud trial of FTX founder Sam Bankman-Fried, giving testimony that helped explain how the two companies became fatally entangled.
Early Life and Background
Zac Prince grew up in Texas and has described an early appetite for competition and calculated risk, traits that later colored both his business ventures and his personal pursuits [8]. Profiles written during BlockFi's rise noted that he came to finance without the pedigree common among Wall Street founders, building his career instead through a string of operational roles at young technology companies [8].
Because Prince is a contemporary business figure rather than a subject of academic biography, the documented record of his youth is thin compared with the extensive coverage of his professional life. What is well established is that by his mid twenties he had settled in New York City and attached himself to the wave of online lending startups that emerged after the 2008 financial crisis, a sector that would shape everything he built afterward [8].
Anyone researching Zac Prince facts will find that his public story effectively begins with this fintech apprenticeship. It gave him two things that proved decisive: fluency in the mechanics of consumer credit, and a network of venture investors who would later back his own company [3].
Path to Prominence
Prince spent the mid 2010s in business development roles at online lending firms, including Orchard Platform, a New York company that built data and order management tools for institutional investors in marketplace loans, and Cognical, the parent of the lease to own checkout service Zibby [8]. The work placed him at the intersection of traditional credit underwriting and internet distribution, and it taught him how loan books are funded, priced, and sold to institutions [8].
His turn toward cryptocurrency came through personal experience rather than ideology. Prince has recounted buying Bitcoin and Ether in the years before 2017 and discovering, when he applied for a conventional loan, that lenders assigned no value to his digital holdings [8]. The gap struck him as a business opportunity: millions of people held appreciating crypto assets that no bank would accept as collateral, and no one was serving them with familiar credit products.
That insight became the founding premise of BlockFi. Rather than building an exchange or a token project, Prince set out to construct something closer to a conventional lender, one that happened to denominate its collateral in Bitcoin. The framing mattered, because it attracted investors who had avoided the more speculative corners of the crypto industry [3].
Building BlockFi
Prince co-founded BlockFi in 2017 with Flori Marquez, a colleague from the consumer lending world, and established its headquarters in Jersey City, New Jersey [2]. The company began with a single product, cash loans secured by Bitcoin and Ether, then expanded into a retail offering that defined its public identity: the BlockFi Interest Account, launched in 2019, which paid customers yields far above bank deposit rates in exchange for lending out their crypto [1].
Growth was rapid. BlockFi drew backing from investors including Valar Ventures, Galaxy Digital, and other prominent venture firms, and in March 2021 it raised a 350 million dollar Series D round that valued the company at about three billion dollars [3]. At its peak the firm managed billions of dollars in client assets, employed hundreds of people, and marketed a Visa branded credit card that paid rewards in Bitcoin, positioning itself as a bridge between mainstream personal finance and digital assets [3].
Among Zac Prince achievements, the most durable may be commercial rather than technical: he demonstrated that ordinary retail savers, not just traders, would move money into crypto if it was packaged in the familiar language of accounts, interest, and credit cards. That same packaging, however, drew the attention of securities regulators, who saw in the interest account something that looked very much like an unregistered security [1].
Regulatory Reckoning
Trouble surfaced in the summer of 2021, when securities regulators in New Jersey, Texas, and several other states ordered BlockFi to stop opening new interest bearing accounts for their residents, arguing the product amounted to an unregistered securities offering [1]. The actions marked one of the first coordinated state challenges to crypto yield products and put the entire lending sector on notice.
The confrontation culminated on February 14, 2022, when the Securities and Exchange Commission announced that BlockFi would pay 100 million dollars, half to the SEC and half to 32 states, to settle charges that its interest accounts were unregistered securities and that the company had operated as an unregistered investment company [1]. It was the largest penalty ever imposed on a crypto firm by the SEC at that time, and the settlement required BlockFi to bring any future yield product into compliance through registration [1].
Prince publicly framed the settlement as a step toward regulatory clarity rather than a defeat, and the company continued operating its loan and trading businesses [1]. In hindsight the episode revealed how exposed the firm's core model was: the yields it promised depended on lending customer assets to trading firms and other institutional borrowers, a chain of counterparty risk that would snap within months [2].
Collapse and Bankruptcy
The crypto credit crisis of 2022 hit BlockFi from two directions. The failure of the hedge fund Three Arrows Capital and the broader market crash that spring damaged the firm's loan book, and in June 2022 BlockFi cut roughly a fifth of its staff as valuations across the sector collapsed [2]. Seeking a lifeline, Prince negotiated a rescue package with FTX US, announced in early July 2022, that provided a 400 million dollar revolving credit facility and gave FTX an option to acquire BlockFi outright [5].
The arrangement tied BlockFi's survival to Sam Bankman-Fried's exchange, and when FTX imploded in November 2022 the consequences were immediate. BlockFi halted customer withdrawals on November 10, citing a lack of clarity about FTX's condition, and on November 28, 2022 it filed for Chapter 11 bankruptcy protection in New Jersey, disclosing significant exposure to both FTX and its affiliated trading firm Alameda Research [2] [4].
Court filings showed the company owed money to more than 100,000 creditors, most of them retail customers whose deposits were frozen [4]. For students of financial history, the sequence offers a compact case study in contagion: a regulatory penalty, a market crash, a rescue that became a liability, and a failure triggered by the collapse of the rescuer itself [2] [4].
Later Years and Legacy
Prince remained at BlockFi's helm through most of the bankruptcy, steering the company toward a wind down plan that a federal judge approved in September 2023 [6]. Shortly afterward he stepped down as chief executive, with the remaining organization focused on returning assets to customers and pursuing claims against the FTX estate, from which BlockFi ultimately recovered substantial value for creditors [6].
In October 2023 Prince took the witness stand at the criminal trial of Sam Bankman-Fried in Manhattan federal court. Testifying for the prosecution, he described BlockFi's lending relationship with Alameda Research, which had borrowed hundreds of millions of dollars, and told jurors that his company would not have extended that credit or agreed to the rescue deal had it known FTX customer funds were being misused [7]. The jury convicted Bankman-Fried on all counts the following month [7].
Any balanced Zac Prince biography has to hold two things together. He built one of the most recognizable brands of the crypto lending era and pushed digital assets toward mainstream financial products, and the company he built failed in a way that cost customers access to their funds for an extended period and accelerated a lasting regulatory crackdown on crypto yield accounts [1] [2]. For people asking who is Zac Prince today, the answer is a founder whose rise and fall became one of the defining narratives of the 2020 to 2022 crypto cycle, and whose SEC settlement still shapes how yield bearing crypto products are treated in the United States [1].
Questions & Answers
- Who is Zac Prince?
- Zac Prince is an American entrepreneur who co-founded the cryptocurrency lender BlockFi in 2017 and served as its chief executive. He previously worked at online lending startups including Orchard Platform before turning to digital assets.
- What is Zac Prince famous for?
- He is best known for building BlockFi into a crypto lending company valued at about three billion dollars, for its record 100 million dollar SEC settlement in 2022, and for the firm's bankruptcy after the collapse of FTX later that year.
- When was BlockFi founded?
- BlockFi was founded in 2017 by Zac Prince and Flori Marquez, with headquarters in Jersey City, New Jersey. It began with crypto backed loans and later added interest accounts, trading, and a Bitcoin rewards credit card.
- Why did BlockFi go bankrupt?
- BlockFi filed for Chapter 11 on November 28, 2022 after the collapse of FTX, which had provided the firm a 400 million dollar credit facility earlier that year. BlockFi had significant exposure to both FTX and its trading affiliate Alameda Research.
- Did Zac Prince testify at the Sam Bankman-Fried trial?
- Yes. In October 2023 Prince testified as a prosecution witness at the fraud trial of FTX founder Sam Bankman-Fried, describing BlockFi's loans to Alameda Research and its dealings with FTX. Bankman-Fried was convicted the following month.
- Is BlockFi still operating?
- No. A bankruptcy court approved BlockFi's wind down plan in September 2023, and the company has since focused on returning assets to customers and recovering funds from the FTX estate rather than operating as a lender.
References
Every record in this archive is kept against verifiable sources.
- [1]BlockFi Agrees to Pay $100 Million in Penalties and Pursue Registration of its Crypto Lending Product. U.S. Securities and Exchange Commission, 2022-02-14. https://www.sec.gov/news/press-release/2022-26Primary source
- [2]Crypto lender BlockFi files for bankruptcy, cites FTX exposure. Reuters, 2022-11-28. News
- [3]Crypto firm BlockFi raises $350 million at a $3 billion valuation. CNBC, 2021-03-11. News
- [4]BlockFi Files for Chapter 11 Bankruptcy Protection. The Wall Street Journal, 2022-11-28. News
- [5]FTX Agrees to Provide BlockFi With $400 Million Credit Facility. Bloomberg, 2022-07-01. News
- [6]BlockFi Founder Zac Prince Steps Down as CEO as Firm Winds Down Operations. CoinDesk, 2023-09-26. News
- [7]BlockFi founder testifies at Bankman-Fried fraud trial. Reuters, 2023-10-13. News
- [8]How BlockFi's Zac Prince Went From Online Lending To Building A Crypto Banking Giant. Forbes, 2021. Web

preserved for ever
Sealed on the blockchain. Tap the seal to verify.
preserved for ever
Sealed on the blockchain. Tap the seal to verify.
This record is inscribed on the Arweave blockchain, a permanent public ledger replicated across hundreds of independent machines. The copy there cannot be edited, withdrawn, or lost. It will outlast this website, its server, and its keeper.
help the keeper
Spotted an error, or hold a source the archive lacks? Every record can be corrected. Submissions are reviewed against authentic references before any change is made.

entered into the archive
kept by The Keeper