Share this article

Circle Co-Founder Sean Neville Steps Down as Co-CEO

Sean Neville, co-founder of Circle, is stepping down as co-CEO six years after founding the crypto trading and payments startup with Jeremy Allaire.

Updated Sep 13, 2021, 11:46 a.m. Published Dec 5, 2019, 12:46 a.m.
Sean Neville image via CoinDesk archives
Sean Neville image via CoinDesk archives

Sean Neville, Circle's co-CEO, will be stepping down from his role at the end of the month.

STORY CONTINUES BELOW
Don't miss another story.Subscribe to the Crypto Daybook Americas Newsletter today. See all newsletters

Neville, who co-founded the Boston-based payments firm in 2014 with Jeremy Allaire, said in an email obtained by CoinDesk that he notified the company’s Board of Directors during a quarterly meeting. While he will transition out of his role as co-CEO, he will remain on the board as an independent director.

While Neville did not explicitly give a reason for his departure, he said in his email that the company’s recent sale of the Poloniex crypto exchange was one of several factors that made “the time appropriate for me to transition.”

As part of Circle’s board, Neville expects to continue working with CENTRE, the collaboration between Circle and Coinbase which is nominally the issuer of the USDC stablecoin.

“I also expect to propel the mission forward through CENTRE and other new complementary paths that traverse worthwhile challenges in infrastructure, regulatory policy, economics, and product design,” he wrote. “As always, I remain stubbornly optimistic about our ability to devise and execute well-crafted things that improve our collective future.”

However, first Neville intends to take a sabbatical, though he did not provide a timeframe.

Circle was founded as a peer-to-peer payments firm, and became the first company to receive a BitLicense from the New York Department of Financial Services in 2015.

The company acquired Poloniex in February 2018 for roughly $400 million. However, the company sold the exchange less than two years later to a group of investors which include Tron’s Justin Sun.Prior to the sale, Poloniex was experiencing headwinds, announcing in recent months that it would geofence certain digital assets away from U.S. consumers. Under its new ownership, the exchange does not intend to serve U.S. customers at all.

More For You

Protocol Research: GoPlus Security

GP Basic Image

What to know:

  • As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
  • GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
  • Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.

More For You

Bitcoin’s Deep Correction Sets Stage for December Rebound, Says K33 Research

(Unsplash)

K33 Research says market fear is outweighing fundamentals as bitcoin nears key levels. December could offer an entry point for bold investors.

What to know:

  • K33 Research says bitcoin’s steep correction shows signs of bottoming, with December potentially marking a turning point.
  • The firm has argued that the market is overreacting to long-term risks while ignoring near-term signals of strength, like low leverage and solid support levels.
  • With likely policy shifts ahead and cautious positioning in futures, K33 sees more upside potential than risk of another major collapse.