Description of business	6 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of business	Description of business Overview of the Business We were founded in 2013, on the belief that we could connect the world more deeply by building a new global economic system on the foundation of the internet, and facilitate the creation of a world where everyone, everywhere can share value as easily as we can today share information, content, and communications. We are building a full-stack internet financial platform business anchored by our stablecoin network, and organized around our reinforcing pillars — Arc and related developer infrastructure, Circle Digital Assets and related services, and Circle Applications. These unaudited Condensed Consolidated Financial Statements include the accounts of Circle Internet Group, Inc. (“Circle Group”) and its subsidiaries in which we have a controlling financial interest (together, “Circle,” the “Company,” “we,” “us,” or “our”). Initial Public Offering In June 2025, the Company completed its initial public offering (“IPO”), in which the Company issued and sold 19.9 million shares of its Class A common stock, including the underwriters’ over-allotment option which was exercised in full, at a public offering price of $31.00 per share. The IPO resulted in net proceeds to the Company of $583.0 million after deducting the underwriting discounts and commissions and before deducting offering costs of $12.8 million, which were charged to additional paid-in capital as a reduction of the net proceeds received from the IPO. Certain selling stockholders offered an additional 19.2 million shares of our Class A common stock at the IPO price in a secondary offering, for which we received no proceeds. In connection with the completion of the IPO, the Company filed its Amended and Restated Certificate of Incorporation, effective June 6, 2025 (the “Charter”), which authorizes a total of 2.5 billion shares of Class A common stock with a par value of $0.0001 per share, 500.0 million shares of Class B common stock with a par value of $0.0001 per share, 500.0 million shares of Class C common stock with a par value of $0.0001 per share and 500.0 million shares of preferred stock with a par value of $0.0001 per share. In connection with the IPO, all shares of our outstanding redeemable convertible preferred stock automatically converted into a total of 139.8 million shares of our Class A common stock, and a total of 19.6 million shares of Class A common stock held by our co-founders and certain entities controlled by our co-founders were converted into an equivalent number of shares of Class B common stock. As a result, following the completion of the IPO, we have three classes of authorized common stock: Class A common stock, Class B common stock, and Class C common stock, of which only Class A common stock and Class B common stock were outstanding as of June 30, 2026. Certain of our restricted stock units granted to employees included both a service condition and a liquidity-event related performance condition. The performance condition related to these awards was met upon the commencement of trading of our Class A common stock on the New York Stock Exchange. As a result, during the three and six months ended June 30, 2025, the Company recognized $423.8 million of stock-based compensation expense, net of $62.7 million of capitalized costs related to internally developed software, for the vesting of approximately 9.5 million shares of Class A common stock, 4.0 million of which were withheld for tax withholding requirements. Follow-on Public Offering In August 2025, the Company completed a follow-on public offering of its Class A common stock, in which the Company issued and sold 3.5 million shares of its Class A common stock, including the underwriters’ over-allotment option which was exercised in full, at a public offering price of $130.00 per share. This resulted in net proceeds to the Company of $444.8 million after deducting the underwriting discounts and commissions and before deducting offering costs of $1.8 million, which were charged to additional paid-in capital as a reduction of the net proceeds received from the follow-on public offering. Certain selling stockholders offered an additional 8.0 million shares of our Class A common stock at the follow-on public offering price in a secondary offering, for which we received no proceeds.

We were founded in 2013, on the belief that we could connect the world more deeply by building a new global economic system on the foundation of the internet, and facilitate the creation of a world where everyone, everywhere can share value as easily as we can today share information, content, and communications.

We are building a full-stack internet financial platform business anchored by our stablecoin network, and organized around our reinforcing pillars — Arc and related developer infrastructure, Circle Digital Assets and related services, and Circle Applications.

These unaudited Condensed Consolidated Financial Statements include the accounts of Circle Internet Group, Inc. (“Circle Group”) and its subsidiaries in which we have a controlling financial interest (together, “Circle,” the “Company,” “we,” “us,” or “our”).

In June 2025, the Company completed its initial public offering (“IPO”), in which the Company issued and sold 19.9 million shares of its Class A common stock, including the underwriters’ over-allotment option which was exercised in full, at a public offering price of $31.00 per share. The IPO resulted in net proceeds to the Company of $583.0 million after deducting the underwriting discounts and commissions and before deducting offering costs of $12.8 million, which were charged to additional paid-in capital as a reduction of the net proceeds received from the IPO. Certain selling stockholders offered an additional 19.2 million shares of our Class A common stock at the IPO price in a secondary offering, for which we received no proceeds.

In connection with the completion of the IPO, the Company filed its Amended and Restated Certificate of Incorporation, effective June 6, 2025 (the “Charter”), which authorizes a total of 2.5 billion shares of Class A common stock with a par value of $0.0001 per share, 500.0 million shares of Class B common stock with a par value of $0.0001 per share, 500.0 million shares of Class C common stock with a par value of $0.0001 per share and 500.0 million shares of preferred stock with a par value of $0.0001 per share. In connection with the IPO, all shares of our outstanding redeemable convertible preferred stock automatically converted into a total of 139.8 million shares of our Class A common stock, and a total of 19.6 million shares of Class A common stock held by our co-founders and certain entities controlled by our co-founders were converted into an equivalent number of shares of Class B common stock. As a result, following the completion of the IPO, we have three classes of authorized common stock: Class A common stock, Class B common stock, and Class C common stock, of which only Class A common stock and Class B common stock were outstanding as of June 30, 2026.

Certain of our restricted stock units granted to employees included both a service condition and a liquidity-event related performance condition. The performance condition related to these awards was met upon the commencement of trading of our Class A common stock on the New York Stock Exchange. As a result, during the three and six months ended June 30, 2025, the Company recognized $423.8 million of stock-based compensation expense, net of $62.7 million of capitalized costs related to internally developed software, for the vesting of approximately 9.5 million shares of Class A common stock, 4.0 million of which were withheld for tax withholding requirements.

In August 2025, the Company completed a follow-on public offering of its Class A common stock, in which the Company issued and sold 3.5 million shares of its Class A common stock, including the underwriters’ over-allotment option which was exercised in full, at a public offering price of $130.00 per share. This resulted in net proceeds to the Company of $444.8 million after deducting the underwriting discounts and commissions and before deducting offering costs of $1.8 million, which were charged to additional paid-in capital as a reduction of the net proceeds received from the follow-on public offering. Certain selling stockholders offered an additional 8.0 million shares of our Class A common stock at the follow-on public offering price in a secondary offering, for which we received no proceeds.