# EDGAR Filing Document

**Accession Number:** 0002070849
**File Stem:** 0001104659-26-005172
**Filing Date:** 2026-1
**Character Count:** 23451
**Document Hash:** 64203c442a844b94fce9e78620011863
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-005172.hdr.sgml**: 20260120

**ACCESSION NUMBER**: 0001104659-26-005172

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251107

**FILED AS OF DATE**: 20260120

**DATE AS OF CHANGE**: 20260120

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Hummingbird Dragons CommV
- **CENTRAL INDEX KEY:** 0002099040

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** C9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42934
- **FILM NUMBER:** 26544365

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
- **BUSINESS PHONE:** 0032477 58 95 42

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Decoster Lukas
- **CENTRAL INDEX KEY:** 0002099021

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42934
- **FILM NUMBER:** 26544361

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** C/O HUMMINGBIRD VENTURES
- **STREET 2:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Van den Brande Barend
- **CENTRAL INDEX KEY:** 0002099027

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42934
- **FILM NUMBER:** 26544362

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** C/O HUMMINGBIRD VENTURES
- **STREET 2:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** HB&Q NV (HB&Q COMPARTMENT III)
- **CENTRAL INDEX KEY:** 0002099035

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** C9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42934
- **FILM NUMBER:** 26544363

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
- **BUSINESS PHONE:** 0032477 58 95 42

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Hummingbird Opportunity Fund II CommV
- **CENTRAL INDEX KEY:** 0002099049

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** C9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42934
- **FILM NUMBER:** 26544367

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
- **BUSINESS PHONE:** 0032477 58 95 42

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Hummingbird Collective CommV
- **CENTRAL INDEX KEY:** 0002099041

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** C9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42934
- **FILM NUMBER:** 26544364

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
- **BUSINESS PHONE:** 0032477 58 95 42

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Humming Bird Ventures Management NV
- **CENTRAL INDEX KEY:** 0002099044

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** C9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42934
- **FILM NUMBER:** 26544368

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
- **BUSINESS PHONE:** 0032477 58 95 42

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Hummingbird Ventures III CommV
- **CENTRAL INDEX KEY:** 0002099047

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** C9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42934
- **FILM NUMBER:** 26544366

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
- **BUSINESS PHONE:** 0032477 58 95 42

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** SQUARE VICTORIA REGINA 1
- **CITY:** SINT-JOOST-TEN-NODE
- **PROVINCE COUNTRY:** C9
- **ZIP:** 1210
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BillionToOne, Inc.
- **CENTRAL INDEX KEY:** 0002070849
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-MEDICAL LABORATORIES [8071]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 811082020
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 1035 O'BRIEN DRIVE
- **CITY:** MENLO PARK
- **STATE:** CA
- **BUSINESS PHONE:** 650-460-2551

**MAIL ADDRESS:**
- **STREET 1:** 1035 O'BRIEN DRIVE
- **CITY:** MENLO PARK
- **STATE:** CA
- **ZIP:** 94025

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Humming Bird Ventures Management NV<br><sub>(Last) (First) (Middle)</sub><br>SQUARE VICTORIA REGAIN 1<br><sub>(Street)</sub><br>SINT-JOOST-TEN-NODE, C9 1210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-11-07 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>BillionToOne, Inc. [ BLLN ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Hummingbird Opportunity Fund II CommV<br><sub>(Last) (First) (Middle)</sub><br>SQUARE VICTORIA REGAIN 1<br><sub>(Street)</sub><br>SINT-JOOST-TEN-NODE, C9 1210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-11-07 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>BillionToOne, Inc. [ BLLN ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Hummingbird Ventures III CommV<br><sub>(Last) (First) (Middle)</sub><br>SQUARE VICTORIA REGAIN 1<br><sub>(Street)</sub><br>SINT-JOOST-TEN-NODE, C9 1210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-11-07 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>BillionToOne, Inc. [ BLLN ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Hummingbird Dragons CommV<br><sub>(Last) (First) (Middle)</sub><br>SQUARE VICTORIA REGAIN 1<br><sub>(Street)</sub><br>SINT-JOOST-TEN-NODE, C9 1210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-11-07 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>BillionToOne, Inc. [ BLLN ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Hummingbird Collective CommV<br><sub>(Last) (First) (Middle)</sub><br>SQUARE VICTORIA REGAIN 1<br><sub>(Street)</sub><br>SINT-JOOST-TEN-NODE, C9 1210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-11-07 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>BillionToOne, Inc. [ BLLN ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>HB&Q NV (HB&Q COMPARTMENT III)<br><sub>(Last) (First) (Middle)</sub><br>SQUARE VICTORIA REGAIN 1<br><sub>(Street)</sub><br>SINT-JOOST-TEN-NODE, C9 1210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-11-07 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>BillionToOne, Inc. [ BLLN ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Van den Brande Barend<br><sub>(Last) (First) (Middle)</sub><br>SQUARE VICTORIA REGAIN 1<br><sub>(Street)</sub><br>SINT-JOOST-TEN-NODE, C9 1210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-11-07 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>BillionToOne, Inc. [ BLLN ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Decoster Lukas<br><sub>(Last) (First) (Middle)</sub><br>SQUARE VICTORIA REGAIN 1<br><sub>(Street)</sub><br>SINT-JOOST-TEN-NODE, C9 1210<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-11-07 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>BillionToOne, Inc. [ BLLN ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2025-11-07 |  | C<sup>(1)(2)</sup> |  | 640727 | A | <sup>(2)</sup> | 640727 | I | See Footnotes<sup>(3)(8)</sup> |
| Common Stock | 2025-11-07 |  | C<sup>(1)(2)</sup> |  | 18845 | A | <sup>(2)</sup> | 18845 | I | See Footnotes<sup>(4)(8)</sup> |
| Common Stock | 2025-11-07 |  | C<sup>(1)(2)</sup> |  | 2015118 | A | <sup>(2)</sup> | 2015118 | I | See Footnotes<sup>(5)(8)</sup> |
| Common Stock | 2025-11-07 |  | C<sup>(1)(2)</sup> |  | 2451665 | A | <sup>(2)</sup> | 2631664 | I | See Footnotes<sup>(6)(8)</sup> |
| Common Stock | 2025-11-07 |  | C<sup>(1)(2)</sup> |  | 2580833 | A | <sup>(2)</sup> | 2580833 | I | See Footnotes<sup>(7)(8)</sup> |
| Common Stock | 2025-11-07 |  | J<sup>(9)</sup> |  | 640727 | D | <sup>(9)</sup> | 0 | I | See Footnotes<sup>(3)(8)</sup> |
| Common Stock | 2025-11-07 |  | J<sup>(9)</sup> |  | 18845 | D | <sup>(9)</sup> | 0 | I | See Footnotes<sup>(4)(8)</sup> |
| Common Stock | 2025-11-07 |  | J<sup>(9)</sup> |  | 2015118 | D | <sup>(9)</sup> | 0 | I | See Footnotes<sup>(5)(8)</sup> |
| Common Stock | 2025-11-07 |  | J<sup>(9)</sup> |  | 2631664 | D | <sup>(9)</sup> | 0 | I | See Footnotes<sup>(6)(8)</sup> |
| Common Stock | 2025-11-07 |  | J<sup>(9)</sup> |  | 2580833 | D | <sup>(9)</sup> | 0 | I | See Footnotes<sup>(7)(8)</sup> |
| Class A Common Stock | 2025-11-07 |  | J<sup>(9)</sup> |  | 640727 | A | <sup>(9)</sup> | 640727 | I | See Footnotes<sup>(3)(8)</sup> |
| Class A Common Stock | 2025-11-07 |  | J<sup>(9)</sup> |  | 18845 | A | <sup>(9)</sup> | 18845 | I | See Footnotes<sup>(4)(8)</sup> |
| Class A Common Stock | 2025-11-07 |  | J<sup>(9)</sup> |  | 2015118 | A | <sup>(9)</sup> | 2015118 | I | See Footnotes<sup>(5)(8)</sup> |
| Class A Common Stock | 2025-11-07 |  | J<sup>(9)</sup> |  | 2631664 | A | <sup>(9)</sup> | 2631664 | I | See Footnotes<sup>(6)(8)</sup> |
| Class A Common Stock | 2025-11-07 |  | J<sup>(9)</sup> |  | 2580833 | A | <sup>(9)</sup> | 2580833 | I | See Footnotes<sup>(7)(8)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Series B-2 Convertible Preferred Stock | <sup>(2)</sup> | 2025-11-07 |  | C |  |  | 640727 | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 640727 | <sup>(2)</sup> | 0 | I | See Footnotes<sup>(3)(8)</sup> |
| Series B-1 Convertible Preferred Stock | <sup>(2)</sup> | 2025-11-07 |  | C |  |  | 18845 | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 18845 | <sup>(2)</sup> | 0 | I | See Footnotes<sup>(4)(8)</sup> |
| Series C Convertible Preferred Stock | <sup>(2)</sup> | 2025-11-07 |  | C |  |  | 1569015 | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 1569015 | <sup>(2)</sup> | 0 | I | See Footnotes<sup>(5)(8)</sup> |
| Series D Convertible Preferred Stock | <sup>(2)</sup> | 2025-11-07 |  | C |  |  | 446103 | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 446103 | <sup>(2)</sup> | 0 | I | See Footnotes<sup>(5)(8)</sup> |
| Series A-1 Convertible Preferred Stock | <sup>(2)</sup> | 2025-11-07 |  | C |  |  | 20000 | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 20000 | <sup>(2)</sup> | 0 | I | See Footnotes<sup>(6)(8)</sup> |
| Series A-2 Convertible Preferred Stock | <sup>(2)</sup> | 2025-11-07 |  | C |  |  | 33000 | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 33000 | <sup>(2)</sup> | 0 | I | See Footnotes<sup>(6)(8)</sup> |
| Series B-1 Convertible Preferred Stock | <sup>(2)</sup> | 2025-11-07 |  | C |  |  | 2261377 | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 2261377 | <sup>(2)</sup> | 0 | I | See Footnotes<sup>(6)(8)</sup> |
| Series C Convertible Preferred Stock | <sup>(2)</sup> | 2025-11-07 |  | C |  |  | 137288 | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 137288 | <sup>(2)</sup> | 0 | I | See Footnotes<sup>(6)(8)</sup> |
| Series A-6 Convertible Preferred Stock | <sup>(2)</sup> | 2025-11-07 |  | C |  |  | 2260520 | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 2260520 | <sup>(2)</sup> | 0 | I | See Footnotes<sup>(7)(8)</sup> |
| Series B-2 Convertible Preferred Stock | <sup>(2)</sup> | 2025-11-07 |  | C |  |  | 320363 | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 320363 | <sup>(2)</sup> | 0 | I | See Footnotes<sup>(7)(8)</sup> |

---

### Footnotes:

(1) The total represents shares received upon conversion of shares of Series A-1 Convertible Preferred Stock, Series A-2 Convertible Preferred Stock, Series A-6 Convertible Preferred Stock, Series B-1 Convertible Preferred Stock, Series B-2 Convertible Preferred Stock, Series C Convertible Preferred Stock and/or Series D Convertible Preferred Stock.

(2) The reported security converted into the Issuer's Common Stock on a one-for-one basis automatically immediately prior to the closing of the Issuer's initial public offering of Class A common stock (the "Offering") without payment of further consideration. The shares have no expiration date.

(3) The reported security is directly held by HB&Q NV (HB&Q COMPARTMENT III).

(4) The reported security is directly held by Hummingbird Collective CommV.

(5) The reported security is directly held by Hummingbird Dragons CommV.

(6) The reported security is directly held by Hummingbird Opportunity Fund II CommV.

(7) The reported security is directly held by Hummingbird Ventures III CommV.

(8) Humming Bird Ventures Management NV is the managing member of Hummingbird Opportunity Fund II CommV, Hummingbird Ventures III CommV, Hummingbird Dragons CommV, Hummingbird Collective CommV, and HB&Q NV (HB&Q COMPARTMENT III) (the Hummingbird Funds) and, as a result, may be deemed to beneficially own shares held by the Hummingbird Funds. Mr. Ileri, Barend Van den Brande, and Lukas Decoster are partners of Hummingbird Ventures Management NV and may be deemed to have shared voting and investment power over the shares held by the Hummingbird Funds. The Reporting Persons disclaim beneficial ownership of these shares except to the extent of their pecuniary interests therein.

(9) Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Offering.

**Signature:** Hummingbird Ventures Management NV /s/ Lukas Decoster 49/9 CommV, represented by its permanent representative Lukas Decoster, Director  
**Date:** 2026-01-20

**Signature:** /s/ Barend Van den Brande  
**Date:** 2026-01-20

**Signature:** /s/ Lukas Decoster  
**Date:** 2026-01-20

**Signature:** Hummingbird Opportunity Fund II CommV /s/ Firat Ileri By: Hummingbird Ventures Management NV, its Manager By: Firat Ileri, Permanent Representative  
**Date:** 2026-01-20

**Signature:** Hummingbird Ventures III CommV /s/ Firat Ileri By: Hummingbird Ventures Management NV, its Manager By: Firat Ileri, Permanent Representative  
**Date:** 2026-01-20

**Signature:** Hummingbird Dragons CommV /s/ Firat Ileri By: Hummingbird Ventures Management NV, its Manager By: Firat Ileri, Permanent Representative  
**Date:** 2026-01-20

**Signature:** Hummingbird Collective CommV /s/ Firat Ileri By: Hummingbird Ventures Management NV, its Manager By: Firat Ileri, Permanent Representative  
**Date:** 2026-01-20

**Signature:** HB&Q NV /s/ Firat Ileri By: Hummingbird Ventures Management NV, its Manager By: Firat Ileri, Permanent Representative  
**Date:** 2026-01-20

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**