# EDGAR Filing Document

**Accession Number:** 0001030818
**File Stem:** 0001104659-25-077001
**Filing Date:** 2025-8
**Character Count:** 30586
**Document Hash:** 07fe1f0016e4dd060bc952f9cbe1991a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-077001.hdr.sgml**: 20250812

**ACCESSION NUMBER**: 0001104659-25-077001

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13G

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20250812

**DATE AS OF CHANGE**: 20250812

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Circle Internet Group, Inc.
- **CENTRAL INDEX KEY:** 0001876042
- **STANDARD INDUSTRIAL CLASSIFICATION:** FINANCE SERVICES [6199]
- **ORGANIZATION NAME:** 09 Crypto Assets
- **EIN:** 992840247
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-95151
- **FILM NUMBER:** 251208463

**BUSINESS ADDRESS:**
- **STREET 1:** ONE WORLD TRADE CENTER
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10007
- **BUSINESS PHONE:** (332) 334-0660

**MAIL ADDRESS:**
- **STREET 1:** ONE WORLD TRADE CENTER
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10007

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Circle Internet Financial Ltd
- **DATE OF NAME CHANGE:** 20231025

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Circle Internet Finance Public Ltd Co
- **DATE OF NAME CHANGE:** 20211101

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CIrcle Acquisition Public Ltd Co
- **DATE OF NAME CHANGE:** 20210730
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** OAK MANAGEMENT CORP
- **CENTRAL INDEX KEY:** 0001030818

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G

**BUSINESS ADDRESS:**
- **STREET 1:** 195 DANBURY ROAD, BUILDING A, SUITE 220
- **CITY:** WILTON
- **STATE:** CT
- **ZIP:** 06897
- **BUSINESS PHONE:** 2032268346

**MAIL ADDRESS:**
- **STREET 1:** 195 DANBURY ROAD, BUILDING A, SUITE 220
- **CITY:** WILTON
- **STATE:** CT
- **ZIP:** 06897

## Ex-99.A

<u>EXHIBIT A</u>

**Joint Filing Agreement**

Each of the undersigned hereby agree to file jointly the statement on Schedule 13G to which this Agreement is attached and any amendments thereto which may be deemed necessary, pursuant to Regulation 13D-G under the Securities Exchange Act of 1934.

It is understood and agreed that each of the parties hereto is responsible for the timely filing of such statement and any amendments thereto, and for the completeness and accuracy of the information concerning such party contained therein, but such party is not responsible for the completeness and accuracy of information concerning any other party unless such party knows or has reason to believe such information is inaccurate.

It is understood and agreed that a copy of this Agreement shall be attached as an exhibit to the statement on Schedule 13G, and any amendments thereto, filed on behalf of each of the parties hereto with respect to the Issuer.

Dated: August 12, 2025

---

| |
|:---|
| **Entities:** |
| **Oak Investment Partners XIII, L.P.** |
| **Oak Associates XIII, LLC** |
| **Oak Management Corporation** |
| /s/ Edward F. Glassmeyer |
| Edward F. Glassmeyer, General Partner or Managing Member or attorney-in-fact for the above-listed entities |
| **Individuals:** |
| **Bandel L. Carano** |
| **Edward F. Glassmeyer** |
| **Fredric W. Harman** |
| **Ann H. Lamont** |
| **Grace A. Ames** |
| **Andrew Adams** |
| /s/ Edward F. Glassmeyer |
| Edward F. Glassmeyer, individually and as attorney-in-fact for the above-listed individuals |

---

## Ex-99.B

<u>EXHIBIT B</u>

**Power of Attorney**

The undersigned hereby make, constitute and appoint **Edward F. Glassmeyer**, with full power of substitution, the true and lawful attorney-in-fact for the undersigned, in the undersigned's name, place and stead and on the undersigned's behalf, to complete, execute and file with the United States Securities and Exchange Commission (the "Commission"), a statement on Schedule 13G and/or 13D with respect to the securities of **Circle Internet Group, Inc.**, a Delaware corporation, and any and all amendments thereto pursuant to Section 13(d) of the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder, and any other forms, certificates, documents or instruments (including a Joint Filing Agreement) that the attorneys-in-fact (or either of them) deems necessary or appropriate in order to enable the undersigned to comply with the requirements of said Section 13(d) and said rules and regulations.

Dated: August 12, 2025

---

| | |
|:---|:---|
| **Oak Management Corporation** | **Oak Management Corporation** |
| By: | /s/ Edward F. Glassmeyer |
| Name: Edward F. Glassmeyer | Name: Edward F. Glassmeyer |
| Its: President | Its: President |
| **Oak Investment Partners XIII, L.P.** | **Oak Investment Partners XIII, L.P.** |
| By: | Oak Associates XIII, LLC, its general partner |
| By: | /s/ Edward F. Glassmeyer |
| Name: Edward F. Glassmeyer | Name: Edward F. Glassmeyer |
| Its: Managing Member | Its: Managing Member |
| **Oak Associates XIII, LLC** | **Oak Associates XIII, LLC** |
| By: | /s/ Edward F. Glassmeyer |
| Name: Edward F. Glassmeyer | Name: Edward F. Glassmeyer |
| Its: Managing Member | Its: Managing Member |
| /s/ Bandel L. Carano | /s/ Bandel L. Carano |
| **Bandel L. Carano** | **Bandel L. Carano** |
| /s/ Edward F. Glassmeyer | /s/ Edward F. Glassmeyer |
| **Edward F. Glassmeyer** | **Edward F. Glassmeyer** |
| /s/ Fredric W. Harman | /s/ Fredric W. Harman |
| **Fredric W. Harman** | **Fredric W. Harman** |
| /s/ Ann H. Lamont | /s/ Ann H. Lamont |
| **Ann H. Lamont** | **Ann H. Lamont** |
| /s/ Grace A. Ames | /s/ Grace A. Ames |
| **Grace A. Ames** | **Grace A. Ames** |
| /s/ Andrew Adams | /s/ Andrew Adams |
| **Andrew Adams** | **Andrew Adams** |

---

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13G

### Under the Securities Exchange Act of 1934

**Issuer:** Circle Internet Group, Inc.

**Title of Class of Securities:** Class A Common Stock

**CUSIP Number:** 172573107

**Date of Event Which Requires Filing of this Statement:** 06/30/2025

**Check the appropriate box to designate the rule pursuant to which this Schedule is filed:**

- [ ] Rule 13d-1(b)

- [ ] Rule 13d-1(c)

- [x] Rule 13d-1(d)

---

| 1. | Names of Reporting Persons<br>Oak Management Corporation | Names of Reporting Persons<br>Oak Management Corporation |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>11880678.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>11880678.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>5.7% | Percent of Class Represented by Amount in Row (9)<br>5.7% |
| 12. | Type of Reporting Person (See Instructions)<br>CO | Type of Reporting Person (See Instructions)<br>CO |

**Comment for Type of Reporting Person:** Percentage ownership in item 11 is based on 207,650,578 shares of Class A Common Stock outstanding as reported in the Issuer's final prospectus filed with the Securities and Exchange Commission on June 5, 2025 pursuant to Rule 424(b)(4) of the Securities Act of 1933 (which reflects the full exercise of the underwriters' overallotment option to purchase additional shares).

---

| 1. | Names of Reporting Persons<br>Oak Investment Partners XIII, L.P. | Names of Reporting Persons<br>Oak Investment Partners XIII, L.P. |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>11880678.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>11880678.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>0.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>5.7% | Percent of Class Represented by Amount in Row (9)<br>5.7% |
| 12. | Type of Reporting Person (See Instructions)<br>PN | Type of Reporting Person (See Instructions)<br>PN |

**Comment for Type of Reporting Person:** Percentage ownership in item 11 is based on 207,650,578 shares of Class A Common Stock outstanding as reported in the Issuer's final prospectus filed with the Securities and Exchange Commission on June 5, 2025 pursuant to Rule 424(b)(4) of the Securities Act of 1933 (which reflects the full exercise of the underwriters' overallotment option to purchase additional shares).

---

| 1. | Names of Reporting Persons<br>Oak Associates XIII, LLC | Names of Reporting Persons<br>Oak Associates XIII, LLC |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>11880678.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>11880678.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>5.7% | Percent of Class Represented by Amount in Row (9)<br>5.7% |
| 12. | Type of Reporting Person (See Instructions)<br>OO | Type of Reporting Person (See Instructions)<br>OO |

**Comment for Type of Reporting Person:** Percentage ownership in item 11 is based on 207,650,578 shares of Class A Common Stock outstanding as reported in the Issuer's final prospectus filed with the Securities and Exchange Commission on June 5, 2025 pursuant to Rule 424(b)(4) of the Securities Act of 1933 (which reflects the full exercise of the underwriters' overallotment option to purchase additional shares).

---

| 1. | Names of Reporting Persons<br>Bandel L. Carano | Names of Reporting Persons<br>Bandel L. Carano |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>11880678.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>11880678.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>5.7% | Percent of Class Represented by Amount in Row (9)<br>5.7% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Percentage ownership in item 11 is based on 207,650,578 shares of Class A Common Stock outstanding as reported in the Issuer's final prospectus filed with the Securities and Exchange Commission on June 5, 2025 pursuant to Rule 424(b)(4) of the Securities Act of 1933 (which reflects the full exercise of the underwriters' overallotment option to purchase additional shares).

---

| 1. | Names of Reporting Persons<br>Edward F. Glassmeyer | Names of Reporting Persons<br>Edward F. Glassmeyer |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>11880678.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>11880678.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>5.7% | Percent of Class Represented by Amount in Row (9)<br>5.7% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Percentage ownership in item 11 is based on 207,650,578 shares of Class A Common Stock outstanding as reported in the Issuer's final prospectus filed with the Securities and Exchange Commission on June 5, 2025 pursuant to Rule 424(b)(4) of the Securities Act of 1933 (which reflects the full exercise of the underwriters' overallotment option to purchase additional shares).

---

| 1. | Names of Reporting Persons<br>Fredric W. Harman | Names of Reporting Persons<br>Fredric W. Harman |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>11880678.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>11880678.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>5.7% | Percent of Class Represented by Amount in Row (9)<br>5.7% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Percentage ownership in item 11 is based on 207,650,578 shares of Class A Common Stock outstanding as reported in the Issuer's final prospectus filed with the Securities and Exchange Commission on June 5, 2025 pursuant to Rule 424(b)(4) of the Securities Act of 1933 (which reflects the full exercise of the underwriters' overallotment option to purchase additional shares).

---

| 1. | Names of Reporting Persons<br>Ann H. Lamont | Names of Reporting Persons<br>Ann H. Lamont |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>11880678.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>11880678.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>5.7% | Percent of Class Represented by Amount in Row (9)<br>5.7% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Percentage ownership in item 11 is based on 207,650,578 shares of Class A Common Stock outstanding as reported in the Issuer's final prospectus filed with the Securities and Exchange Commission on June 5, 2025 pursuant to Rule 424(b)(4) of the Securities Act of 1933 (which reflects the full exercise of the underwriters' overallotment option to purchase additional shares).

---

| 1. | Names of Reporting Persons<br>Grace A. Ames | Names of Reporting Persons<br>Grace A. Ames |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>11880678.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>11880678.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>5.7% | Percent of Class Represented by Amount in Row (9)<br>5.7% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Percentage ownership in item 11 is based on 207,650,578 shares of Class A Common Stock outstanding as reported in the Issuer's final prospectus filed with the Securities and Exchange Commission on June 5, 2025 pursuant to Rule 424(b)(4) of the Securities Act of 1933 (which reflects the full exercise of the underwriters' overallotment option to purchase additional shares).

---

| 1. | Names of Reporting Persons<br>Andrew Adams | Names of Reporting Persons<br>Andrew Adams |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [x] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>X1 | Citizenship or Place of Organization<br>X1 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>11880678.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0.00 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>11880678.00 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>11880678.00 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>5.7% | Percent of Class Represented by Amount in Row (9)<br>5.7% |
| 12. | Type of Reporting Person (See Instructions)<br>IN | Type of Reporting Person (See Instructions)<br>IN |

**Comment for Type of Reporting Person:** Percentage ownership in item 11 is based on 207,650,578 shares of Class A Common Stock outstanding as reported in the Issuer's final prospectus filed with the Securities and Exchange Commission on June 5, 2025 pursuant to Rule 424(b)(4) of the Securities Act of 1933 (which reflects the full exercise of the underwriters' overallotment option to purchase additional shares).

---

**Item 1(a). Name of Issuer:**
Circle Internet Group, Inc.

**Item 1(b). Address of Issuer's Principal Executive Offices:**
ONE WORLD TRADE CENTER, NEW YORK, NY, 10007

**Item 2(a). Name of Person Filing:**
Oak Investment Partners XIII, L.P ("Oak XIII")
Oak Associates XIII, LLC ("Oak Associates XII")
Oak Management Corporation ("Oak Management")
Bandel L. Carano
Edward F. Glassmeyer
Fredric W. Harman
Ann H. Lamont
Grace A. Ames
Andrew Adams

**Item 2(b). Address of Principal Business Office:**
c/o Oak Management Corporation
195 Danbury Road, Building A, Suite 220
Wilton, Connecticut 06897

**Item 2(c). Citizenship:**
Please refer to Item 4 on the cover sheet for each filing person.

**Item 2(d). Title of Class of Securities:**
Class A Common Stock

**Item 2(e). CUSIP Number:**
172573107

**Item 3. If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:**

(a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e) [ ] An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f) [ ] An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g) [ ] A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h) [ ] A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j) [ ] A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), if filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:

(k) [ ] Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

**Item 4. Ownership:**

**(a) Amount beneficially owned:**

The information in Items 1 and 5 through 11 on the cover pages of this Schedule 13G is hereby incorporated by reference.

**(b) Percent of class:**

The information in Items 1 and 5 through 11 on the cover pages of this Schedule 13G is hereby incorporated by reference.

**(c) Number of shares as to which the person has:**

**(i) Sole power to vote or to direct the vote:**

The information in Items 1 and 5 through 11 on the cover pages of this Schedule 13G is hereby incorporated by reference.

**(ii) Shared power to vote or to direct the vote:**

The information in Items 1 and 5 through 11 on the cover pages of this Schedule 13G is hereby incorporated by reference.

**(iii) Sole power to dispose or to direct the disposition of:**

The information in Items 1 and 5 through 11 on the cover pages of this Schedule 13G is hereby incorporated by reference.

**(iv) Shared power to dispose or to direct the disposition of:**

The information in Items 1 and 5 through 11 on the cover pages of this Schedule 13G is hereby incorporated by reference.
Oak Associates XIII is the general partner of Oak XIII. Oak Management is the manager of Oak XIII. Bandel L. Carano, Edward F. Glassmeyer, Fredric W. Harman, Ann H. Lamont, Grace A. Ames, and Andrew Adams are the managing members of Oak Associates XIII and, as such, may be deemed to possess shared beneficial ownership of the shares of Class A Common Stock held by Oak XIII.
By making this filing, the Reporting Persons acknowledge that they may be deemed to constitute a "group" within the meaning of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended, in connection with the securities of the Issuer. Each Reporting Person disclaims the existence of a "group" and disclaims beneficial ownership of all shares of Class A Common Stock or securities convertible into or exercisable for Class A Common Stock other than any shares or other securities reported herein as being owned by it, him or her, as the case may be.

**Item 5. Ownership of Five Percent or Less of a Class.**

[x] If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following.

**Item 6. Ownership of More than 5 Percent on Behalf of Another Person.**

Not Applicable

**Item 7. Identification and Classification of the Subsidiary**

Not Applicable

**Item 8. Identification and Classification of Members of the Group**

Not Applicable

**Item 9. Notice of Dissolution of Group**

Not Applicable

**Item 10. Certification:**

—

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Oak Management Corporation**

**Date:** 08/12/2025

**By:** /s/ Edward F. Glassmeyer

**Name & Title:** Edward F. Glassmeyer, General Partner or Managing Member or attorney-in-fact

**Oak Investment Partners XIII, L.P.**

**Date:** 08/12/2025

**By:** /s/ Edward F. Glassmeyer

**Name & Title:** Edward F. Glassmeyer, General Partner or Managing Member or attorney-in-fact

**Oak Associates XIII, LLC**

**Date:** 08/12/2025

**By:** /s/ Edward F. Glassmeyer

**Name & Title:** Edward F. Glassmeyer, General Partner or Managing Member or attorney-in-fact

**Bandel L. Carano**

**Date:** 08/12/2025

**By:** /s/ Edward F. Glassmeyer

**Name & Title:** Edward F. Glassmeyer, as attorney-in-fact

**Edward F. Glassmeyer**

**Date:** 08/12/2025

**By:** /s/ Edward F. Glassmeyer

**Name & Title:** Edward F. Glassmeyer

**Fredric W. Harman**

**Date:** 08/12/2025

**By:** /s/ Edward F. Glassmeyer

**Name & Title:** Edward F. Glassmeyer, as attorney-in-fact

**Ann H. Lamont**

**Date:** 08/12/2025

**By:** /s/ Edward F. Glassmeyer

**Name & Title:** Edward F. Glassmeyer, as attorney-in-fact

**Grace A. Ames**

**Date:** 08/12/2025

**By:** /s/ Edward F. Glassmeyer

**Name & Title:** Edward F. Glassmeyer, as attorney-in-fact

**Andrew Adams**

**Date:** 08/12/2025

**By:** /s/ Edward F. Glassmeyer

**Name & Title:** Edward F. Glassmeyer, as attorney-in-fact