CRCL

SEC source: 0001876042-26-000047 · wk-form4_1772659437.xml · nonDerivative · entry 7

Tarbert Heath · CIK 0002060670 · President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 662,858

F3 · shares: The reported sale was made pursuant to a 10b5-1 trading plan.

F7 · price: These shares were sold in multiple transactions at prices ranging from $93.63 to $94.01, inclusive. The weighted average sale price was $93.83. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

SEC source: 0001876042-26-000047 · wk-form4_1772659437.xml · nonDerivative · entry 6

Tarbert Heath · CIK 0002060670 · President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 687,431

F3 · shares: The reported sale was made pursuant to a 10b5-1 trading plan.

F6 · price: These shares were sold in multiple transactions at prices ranging from $92.50 to $93.09, inclusive. The weighted average sale price was $92.77. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

SEC source: 0001876042-26-000047 · wk-form4_1772659437.xml · nonDerivative · entry 5

Tarbert Heath · CIK 0002060670 · President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 707,813

F3 · shares: The reported sale was made pursuant to a 10b5-1 trading plan.

F5 · price: These shares were sold in multiple transactions at prices ranging from $91.29 to $92.16, inclusive. The weighted average sale price was $91.82. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

SEC source: 0001876042-26-000047 · wk-form4_1772659437.xml · nonDerivative · entry 4

Tarbert Heath · CIK 0002060670 · President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 711,901

F3 · shares: The reported sale was made pursuant to a 10b5-1 trading plan.

F4 · price: These shares were sold in multiple transactions at prices ranging from $90.11 to $91.08, inclusive. The weighted average sale price was $90.24. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

SEC source: 0001876042-26-000047 · wk-form4_1772659437.xml · nonDerivative · entry 3

Tarbert Heath · CIK 0002060670 · President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 721,163

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001876042-26-000047 · wk-form4_1772659437.xml · nonDerivative · entry 2

Tarbert Heath · CIK 0002060670 · President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 646,055

F2 · kind: The shares of Class A common stock were withheld to satisfy the Reporting Person's tax withholding obligation upon the vesting of restricted stock units.

SEC source: 0001876042-26-000047 · wk-form4_1772659437.xml · nonDerivative · entry 1

Tarbert Heath · CIK 0002060670 · President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 654,044

F1 · shares: The restricted stock units were granted on March 2, 2026, and vest over four years in substantially equal quarterly installments, in each case, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date.

SEC source: 0001876042-26-000046 · wk-form4_1772659391.xml · derivative · entry 10

Allaire Jeremy · CIK 0001539940 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,859,769

Underlying: Class A Common Stock · 8,404 shares

Expires not disclosed

F8 · derivative.exercise_price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F8 · shares: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F8 · derivative.exercise_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F8 · derivative.expiration_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

SEC source: 0001876042-26-000046 · wk-form4_1772659391.xml · derivative · entry 9

Allaire Jeremy · CIK 0001539940 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,868,173

Underlying: Class A Common Stock · 15,194 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F8 · derivative.exercise_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F8 · derivative.expiration_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

SEC source: 0001876042-26-000046 · wk-form4_1772659391.xml · derivative · entry 8

Allaire Jeremy · CIK 0001539940 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 204,589

Underlying: Class A Common Stock · 6,017 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Class B Common Stock.

F7 · derivative.exercise_date: 1/4 of the shares subject to the Restricted Stock Units vested on January 1, 2026 and the remaining portion vest in 36 substantially equal monthly installments thereafter, in each case, subject to the Reporting Person's continued service relationship with Circle Internet Group, Inc. through each applicable vesting date.

F7 · derivative.expiration_date: 1/4 of the shares subject to the Restricted Stock Units vested on January 1, 2026 and the remaining portion vest in 36 substantially equal monthly installments thereafter, in each case, subject to the Reporting Person's continued service relationship with Circle Internet Group, Inc. through each applicable vesting date.

SEC source: 0001876042-26-000046 · wk-form4_1772659391.xml · derivative · entry 7

Allaire Jeremy · CIK 0001539940 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 148,328

Underlying: Class A Common Stock · 6,742 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Class B Common Stock.

F6 · derivative.exercise_date: The Restricted Stock Units vest in substantially equal monthly installments from July 1, 2025 through January 1, 2028, in each case, subject to the Reporting Person's continued service relationship with Circle Internet Group, Inc. through each applicable vesting date.

F6 · derivative.expiration_date: The Restricted Stock Units vest in substantially equal monthly installments from July 1, 2025 through January 1, 2028, in each case, subject to the Reporting Person's continued service relationship with Circle Internet Group, Inc. through each applicable vesting date.

SEC source: 0001876042-26-000046 · wk-form4_1772659391.xml · derivative · entry 6

Allaire Jeremy · CIK 0001539940 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,342

Underlying: Class A Common Stock · 2,435 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each Restricted Stock Unit represents a contingent right to receive one share of Class B Common Stock.

F5 · derivative.exercise_date: The Restricted Stock Units vest in substantially equal monthly installments from July 1, 2025 through January 1, 2027, in each case, subject to the Reporting Person's continued service relationship with Circle Internet Group, Inc. through each applicable vesting date.

F5 · derivative.expiration_date: The Restricted Stock Units vest in substantially equal monthly installments from July 1, 2025 through January 1, 2027, in each case, subject to the Reporting Person's continued service relationship with Circle Internet Group, Inc. through each applicable vesting date.

SEC source: 0001876042-26-000046 · wk-form4_1772659391.xml · nonDerivative · entry 1

Allaire Jeremy · CIK 0001539940 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 294,201

F1 · shares: The restricted stock units were granted on March 2, 2026, and vest over four years in substantially equal quarterly installments, in each case, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date.

F2 · balance_after: Represents 56,408 shares of Class A common stock held outright by the reporting person and 237,793 shares of Class A common stock issuable upon the vesting of restricted stock units.

SEC source: 0001876042-26-000045 · wk-form4_1772659355.xml · derivative · entry 9

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Neville 2025 Qualified Annuity Trust

Disclosed balance after: 152,842

Underlying: Class A Common Stock · 5,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F4 · shares: On March 2, 2026, the Reporting Person converted 5,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F3 · price: Represents shares of Class B common stock held through an irrevocable grantor trust, of which the Reporting Person is the sole trustee and the Reporting Person is a beneficiary. The Reporting Person is entitled to annuity payments from the trust, with any remaining assets to be distributed to the Calico Trust, of which the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class B common stock except to the extent of his pecuniary interest therein.

F1 · derivative.exercise_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F4 · derivative.exercise_date: On March 2, 2026, the Reporting Person converted 5,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F1 · derivative.expiration_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F4 · derivative.expiration_date: On March 2, 2026, the Reporting Person converted 5,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F3 · ownership.nature: Represents shares of Class B common stock held through an irrevocable grantor trust, of which the Reporting Person is the sole trustee and the Reporting Person is a beneficiary. The Reporting Person is entitled to annuity payments from the trust, with any remaining assets to be distributed to the Calico Trust, of which the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class B common stock except to the extent of his pecuniary interest therein.

SEC source: 0001876042-26-000045 · wk-form4_1772659355.xml · derivative · entry 8

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,366,356

Underlying: Class A Common Stock · 30,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · shares: On March 2, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F1 · price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · derivative.exercise_date: On March 2, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F1 · derivative.expiration_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · derivative.expiration_date: On March 2, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

SEC source: 0001876042-26-000045 · wk-form4_1772659355.xml · derivative · entry 7

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,396,356

Underlying: Class A Common Stock · 30,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · shares: On March 2, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F1 · price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · derivative.exercise_date: On March 2, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F6 · derivative.exercise_date: The options are fully vested.

F1 · derivative.expiration_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · derivative.expiration_date: On March 2, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

SEC source: 0001876042-26-000045 · wk-form4_1772659355.xml · derivative · entry 6

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,969,073

Underlying: Class B Common Stock · 30,000 shares

Expires 2027-03-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · derivative.exercise_date: On March 2, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F6 · derivative.exercise_date: The options are fully vested.

SEC source: 0001876042-26-000045 · wk-form4_1772659355.xml · nonDerivative · entry 4

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Neville 2025 Qualified Annuity Trust

Disclosed balance after: 0

F4 · kind: On March 2, 2026, the Reporting Person converted 5,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F3 · ownership.nature: Represents shares of Class B common stock held through an irrevocable grantor trust, of which the Reporting Person is the sole trustee and the Reporting Person is a beneficiary. The Reporting Person is entitled to annuity payments from the trust, with any remaining assets to be distributed to the Calico Trust, of which the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class B common stock except to the extent of his pecuniary interest therein.

SEC source: 0001876042-26-000045 · wk-form4_1772659355.xml · nonDerivative · entry 3

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Neville 2025 Qualified Annuity Trust

Disclosed balance after: 5,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F3 · ownership.nature: Represents shares of Class B common stock held through an irrevocable grantor trust, of which the Reporting Person is the sole trustee and the Reporting Person is a beneficiary. The Reporting Person is entitled to annuity payments from the trust, with any remaining assets to be distributed to the Calico Trust, of which the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class B common stock except to the extent of his pecuniary interest therein.

SEC source: 0001876042-26-000045 · wk-form4_1772659355.xml · nonDerivative · entry 2

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F2 · kind: On March 2, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

SEC source: 0001876042-26-000045 · wk-form4_1772659355.xml · nonDerivative · entry 1

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

SEC source: 0001876042-26-000044 · wk-form4_1772659288.xml · derivative · entry 9

BURNS M MICHELE · CIK 0001197664 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,000

Underlying: Class A Common Stock · 80,000 shares

Expires 2028-03-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The stock options are fully vested.

SEC source: 0001876042-26-000044 · wk-form4_1772659288.xml · nonDerivative · entry 5

BURNS M MICHELE · CIK 0001197664 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 305,230

SEC source: 0001876042-26-000044 · wk-form4_1772659288.xml · nonDerivative · entry 4

BURNS M MICHELE · CIK 0001197664 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 325,230

SEC source: 0001876042-26-000044 · wk-form4_1772659288.xml · nonDerivative · entry 3

BURNS M MICHELE · CIK 0001197664 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 365,230

SEC source: 0001876042-26-000044 · wk-form4_1772659288.xml · nonDerivative · entry 2

BURNS M MICHELE · CIK 0001197664 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 375,230

SEC source: 0001876042-26-000044 · wk-form4_1772659288.xml · nonDerivative · entry 1

BURNS M MICHELE · CIK 0001197664 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 385,230

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001876042-26-000043 · wk-form4_1772659215.xml · nonDerivative · entry 2

Razzaghi Hossein · CIK 0002083179 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 754,566

F2 · kind: The shares of Class A common stock were withheld to satisfy the Reporting Person's tax withholding obligation upon the vesting of restricted stock units.

SEC source: 0001876042-26-000043 · wk-form4_1772659215.xml · nonDerivative · entry 1

Razzaghi Hossein · CIK 0002083179 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 757,960

F1 · shares: The restricted stock units were granted on March 2, 2026, and vest over four years in substantially equal quarterly installments, in each case, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date.

SEC source: 0001876042-26-000041 · wk-form4_1772489384.xml · nonDerivative · entry 5

Allaire Jeremy · CIK 0001539940 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Spruce Trust

Disclosed balance after: 66,378

F1 · kind: The reported sale was made pursuant to a 10b5-1 trading plan.

F2 · price: These shares were sold in multiple transactions at prices ranging from $90.00 to $90.05, inclusive. The weighted average sale price was $90.04. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

F3 · ownership.nature: Represents shares of Class A common stock held through an irrevocable non-grantor trust, of which the Reporting Person's legal counsel is the sole trustee and the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class A common stock.

SEC source: 0001876042-26-000041 · wk-form4_1772489384.xml · nonDerivative · entry 4

Allaire Jeremy · CIK 0001539940 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Beech Trust

Disclosed balance after: 66,378

F1 · kind: The reported sale was made pursuant to a 10b5-1 trading plan.

F2 · price: These shares were sold in multiple transactions at prices ranging from $90.00 to $90.05, inclusive. The weighted average sale price was $90.04. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

F3 · ownership.nature: Represents shares of Class A common stock held through an irrevocable non-grantor trust, of which the Reporting Person's legal counsel is the sole trustee and the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class A common stock.

SEC source: 0001876042-26-000041 · wk-form4_1772489384.xml · nonDerivative · entry 3

Allaire Jeremy · CIK 0001539940 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Chestnut Trust

Disclosed balance after: 66,378

F1 · kind: The reported sale was made pursuant to a 10b5-1 trading plan.

F2 · price: These shares were sold in multiple transactions at prices ranging from $90.00 to $90.05, inclusive. The weighted average sale price was $90.04. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

F3 · ownership.nature: Represents shares of Class A common stock held through an irrevocable non-grantor trust, of which the Reporting Person's legal counsel is the sole trustee and the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class A common stock.

SEC source: 0001876042-26-000041 · wk-form4_1772489384.xml · nonDerivative · entry 2

Allaire Jeremy · CIK 0001539940 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Indirect · By Oak Trust

Disclosed balance after: 66,382

F1 · kind: The reported sale was made pursuant to a 10b5-1 trading plan.

F2 · price: These shares were sold in multiple transactions at prices ranging from $90.00 to $90.05, inclusive. The weighted average sale price was $90.04. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

F3 · ownership.nature: Represents shares of Class A common stock held through an irrevocable non-grantor trust, of which the Reporting Person's legal counsel is the sole trustee and the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class A common stock.

SEC source: 0001876042-26-000041 · wk-form4_1772489384.xml · nonDerivative · entry 1

Allaire Jeremy · CIK 0001539940 · Director · Chairman and CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 56,408

F1 · kind: The reported sale was made pursuant to a 10b5-1 trading plan.

F2 · price: These shares were sold in multiple transactions at prices ranging from $90.00 to $90.05, inclusive. The weighted average sale price was $90.04. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

SEC source: 0001876042-26-000040 · wk-form4_1772489338.xml · derivative · entry 9

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Neville 2025 Qualified Annuity Trust

Disclosed balance after: 157,842

Underlying: Class A Common Stock · 5,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F5 · shares: On February 26, 2026, the Reporting Person converted 5,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F4 · price: Represents shares of Class B common stock held through an irrevocable grantor trust, of which the Reporting Person is the sole trustee and the Reporting Person is a beneficiary. The Reporting Person is entitled to annuity payments from the trust, with any remaining assets to be distributed to the Calico Trust, of which the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class B common stock except to the extent of his pecuniary interest therein.

F1 · derivative.exercise_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F5 · derivative.exercise_date: On February 26, 2026, the Reporting Person converted 5,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F1 · derivative.expiration_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F5 · derivative.expiration_date: On February 26, 2026, the Reporting Person converted 5,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F4 · ownership.nature: Represents shares of Class B common stock held through an irrevocable grantor trust, of which the Reporting Person is the sole trustee and the Reporting Person is a beneficiary. The Reporting Person is entitled to annuity payments from the trust, with any remaining assets to be distributed to the Calico Trust, of which the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class B common stock except to the extent of his pecuniary interest therein.

SEC source: 0001876042-26-000040 · wk-form4_1772489338.xml · derivative · entry 8

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,366,356

Underlying: Class A Common Stock · 30,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · shares: On February 26, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F1 · price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · derivative.exercise_date: On February 26, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F1 · derivative.expiration_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · derivative.expiration_date: On February 26, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

SEC source: 0001876042-26-000040 · wk-form4_1772489338.xml · derivative · entry 7

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,396,356

Underlying: Class A Common Stock · 30,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · shares: On February 26, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F1 · price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · derivative.exercise_date: On February 26, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F7 · derivative.exercise_date: The options are fully vested.

F1 · derivative.expiration_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · derivative.expiration_date: On February 26, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

SEC source: 0001876042-26-000040 · wk-form4_1772489338.xml · derivative · entry 6

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,999,073

Underlying: Class B Common Stock · 30,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · derivative.exercise_date: On February 26, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F7 · derivative.exercise_date: The options are fully vested.

F1 · derivative.expiration_date: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F2 · derivative.expiration_date: On February 26, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

SEC source: 0001876042-26-000040 · wk-form4_1772489338.xml · nonDerivative · entry 4

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Neville 2025 Qualified Annuity Trust

Disclosed balance after: 0

F5 · kind: On February 26, 2026, the Reporting Person converted 5,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F3 · balance_after: The amount of securities beneficially owned following the reported transaction was inadvertently overstated on a prior Form 4/A due to a scrivener's error. This footnote clarifies that, following the reported transaction, the reporting person beneficially owns zero (0) shares of Class A common stock directly.

F4 · ownership.nature: Represents shares of Class B common stock held through an irrevocable grantor trust, of which the Reporting Person is the sole trustee and the Reporting Person is a beneficiary. The Reporting Person is entitled to annuity payments from the trust, with any remaining assets to be distributed to the Calico Trust, of which the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class B common stock except to the extent of his pecuniary interest therein.

SEC source: 0001876042-26-000040 · wk-form4_1772489338.xml · nonDerivative · entry 3

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Indirect · By Neville 2025 Qualified Annuity Trust

Disclosed balance after: 5,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

F4 · ownership.nature: Represents shares of Class B common stock held through an irrevocable grantor trust, of which the Reporting Person is the sole trustee and the Reporting Person is a beneficiary. The Reporting Person is entitled to annuity payments from the trust, with any remaining assets to be distributed to the Calico Trust, of which the Reporting Person's child is the beneficiary. The Reporting Person disclaims beneficial ownership of the shares of Class B common stock except to the extent of his pecuniary interest therein.

SEC source: 0001876042-26-000040 · wk-form4_1772489338.xml · nonDerivative · entry 2

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F2 · kind: On February 26, 2026, the Reporting Person converted 30,000 shares of Class B common stock into Class A common stock to facilitate a sale pursuant to a 10b5-1 trading plan.

F3 · balance_after: The amount of securities beneficially owned following the reported transaction was inadvertently overstated on a prior Form 4/A due to a scrivener's error. This footnote clarifies that, following the reported transaction, the reporting person beneficially owns zero (0) shares of Class A common stock directly.

SEC source: 0001876042-26-000040 · wk-form4_1772489338.xml · nonDerivative · entry 1

Neville Patrick Sean · CIK 0002060511 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Class B common stock is convertible into Class A common stock on a one-for-one basis at the option of the Reporting Person. In addition, each share of Class B common stock will convert automatically into Class A common stock on a one-for-one basis upon any transfer of such share, except for certain permitted transfers described in the Issuer's Amended and Restated Certificate of Incorporation. Shares of Class B common stock do not expire.

SEC source: 0001876042-26-000039 · wk-form4_1772489273.xml · nonDerivative · entry 1

Date Rajeev V · CIK 0001672444 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Fenway Summer Charitable Remainder Trust

Disclosed balance after: 0

F1 · price: These shares were sold in multiple transactions at prices ranging from $89.41 to $89.81, inclusive. The weighted average sale price was $89.62. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

F2 · ownership.nature: The Reporting Person is the sole trustee of the Fenway Summer Charitable Remainder Trust and The Alzheimer's Association is the residual beneficiary of the Fenway Summer Charitable Remainder Trust. The Reporting Person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein.

SEC source: 0001876042-26-000038 · wk-form4_1772489197.xml · derivative · entry 3

Chandhok Nikhil · CIK 0002060495 · Chief Product & Tech. Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,129,677

Underlying: Class A Common Stock · 20,000 shares

Expires 2032-02-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: 1/4 of the shares of Class A Common stock subject to the option award vested upon the one-year anniversary following the vesting commencement date and the remaining portion vest in 36 successive equal monthly installments thereafter, in each case, subject to the Reporting Person's continued service relationship with Circle Internet Group, Inc. through each applicable vesting date.

SEC source: 0001876042-26-000038 · wk-form4_1772489197.xml · nonDerivative · entry 2

Chandhok Nikhil · CIK 0002060495 · Chief Product & Tech. Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 425,295

F1 · kind: The reported sale was made pursuant to a 10b5-1 trading plan.

F2 · price: These shares were sold in multiple transactions at prices ranging from $90.00 to $90.04, inclusive. The weighted average sale price was $90.00. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range.

F3 · balance_after: Represents 210,755 shares of Class A common stock held outright by the Reporting Person and 214,540 shares of Class A common stock subject to outstanding restricted stock units.

SEC source: 0001876042-26-000038 · wk-form4_1772489197.xml · nonDerivative · entry 1

Chandhok Nikhil · CIK 0002060495 · Chief Product & Tech. Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 445,295

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001876042-26-000037 · wk-form4_1772489137.xml · derivative · entry 3

BURNS M MICHELE · CIK 0001197664 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 190,000

Underlying: Class A Common Stock · 10,000 shares

Expires 2028-03-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The stock options are fully vested.

SEC source: 0001876042-26-000037 · wk-form4_1772489137.xml · nonDerivative · entry 2

BURNS M MICHELE · CIK 0001197664 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 305,230

SEC source: 0001876042-26-000037 · wk-form4_1772489137.xml · nonDerivative · entry 1

BURNS M MICHELE · CIK 0001197664 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 315,230

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001876042-26-000036 · wk-form4_1772489093.xml · derivative · entry 3

Fox-Geen Jeremy · CIK 0001818008 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,167,206

Underlying: Class A Common Stock · 14,400 shares

Expires 2031-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: 1/4 of the shares of Class A Common stock subject to the option award vested upon the one-year anniversary following the vesting commencement date and the remaining portion vest in 36 successive equal monthly installments thereafter, in each case, subject to the Reporting Person's continued service relationship with Circle Internet Group, Inc. through each applicable vesting date.