Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| BillionToOne, Inc.BLLN · Entity 3992 | Director · 10% owner | June 10, 2026 | June 12, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
BillionToOne, Inc.
Report date June 10, 2026 · Filed June 12, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Common StockSEC Table I · non-derivative | Direct | 40,331 |
Reported balance
After 2026-06-10 transaction · row 1
1 source rowRow 1 · 2026-06-10 · Grant · Acquired 3,017 · Balance 40,331 F1: The Reporting Person was granted restricted stock units (RSUs), which represent a contingent right to receive one share of Class A common stock for each RSU. The RSUs are subject to a service-based vesting requirement, which shall be satisfied on the earlier of (A) the date of the next annual meeting of stockholders, or (B) the one-year anniversary of June 10, 2026. |
Filing footnotes · ownership attribution and instrument terms
F1: The Reporting Person was granted restricted stock units (RSUs), which represent a contingent right to receive one share of Class A common stock for each RSU. The RSUs are subject to a service-based vesting requirement, which shall be satisfied on the earlier of (A) the date of the next annual meeting of stockholders, or (B) the one-year anniversary of June 10, 2026.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| June 10, 2026 Filed Jun 12, 2026 12:54 UTC | BillionToOne, Inc. BLLN · Entity 3992 | GrantClass A Common Stock | 3,017 | $0.00 | $0.00 |
DisclosureSEC source: 0002087908-26-000002 · wk-form4_1781283253.xml · nonDerivative · entry 1 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 40,331 F1 · shares: The Reporting Person was granted restricted stock units (RSUs), which represent a contingent right to receive one share of Class A common stock for each RSU. The RSUs are subject to a service-based vesting requirement, which shall be satisfied on the earlier of (A) the date of the next annual meeting of stockholders, or (B) the one-year anniversary of June 10, 2026. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionSeries B-2 Convertible Preferred Stock · Derivative | 320,363 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · derivative · entry 30 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 Underlying: Common Stock · 320,363 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. F3 · derivative.exercise_price: 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. F3 · price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. F8 · ownership.nature: The reported security is directly held by Hummingbird Ventures III CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionSeries A-6 Convertible Preferred Stock · Derivative | 2,260,520 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · derivative · entry 29 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 Underlying: Common Stock · 2,260,520 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. F3 · derivative.exercise_price: 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. F3 · price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. F8 · ownership.nature: The reported security is directly held by Hummingbird Ventures III CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionSeries C Convertible Preferred Stock · Derivative | 137,288 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · derivative · entry 28 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 Underlying: Common Stock · 137,288 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. F3 · derivative.exercise_price: 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. F3 · price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. F7 · ownership.nature: The reported security is directly held by Hummingbird Opportunity Fund II CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionSeries B-1 Convertible Preferred Stock · Derivative | 2,261,377 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · derivative · entry 27 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 Underlying: Common Stock · 2,261,377 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. F3 · derivative.exercise_price: 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. F3 · price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. F7 · ownership.nature: The reported security is directly held by Hummingbird Opportunity Fund II CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionSeries A-2 Convertible Preferred Stock · Derivative | 33,000 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · derivative · entry 26 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 Underlying: Common Stock · 33,000 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. F3 · derivative.exercise_price: 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. F3 · price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. F7 · ownership.nature: The reported security is directly held by Hummingbird Opportunity Fund II CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionSeries A-1 Convertible Preferred Stock · Derivative | 20,000 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · derivative · entry 25 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 Underlying: Common Stock · 20,000 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. F3 · derivative.exercise_price: 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. F3 · price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. F7 · ownership.nature: The reported security is directly held by Hummingbird Opportunity Fund II CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionSeries D Convertible Preferred Stock · Derivative | 446,103 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · derivative · entry 24 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 Underlying: Common Stock · 446,103 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. F3 · derivative.exercise_price: 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. F3 · price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. F6 · ownership.nature: The reported security is directly held by Hummingbird Dragons CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionSeries C Convertible Preferred Stock · Derivative | 1,569,015 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · derivative · entry 23 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 Underlying: Common Stock · 1,569,015 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. F3 · derivative.exercise_price: 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. F3 · price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. F6 · ownership.nature: The reported security is directly held by Hummingbird Dragons CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionSeries B-1 Convertible Preferred Stock · Derivative | 18,845 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · derivative · entry 22 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 Underlying: Common Stock · 18,845 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. F3 · derivative.exercise_price: 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. F3 · price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. F5 · ownership.nature: The reported security is directly held by Hummingbird Collective CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionSeries B-2 Convertible Preferred Stock · Derivative | 640,727 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · derivative · entry 21 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 Underlying: Common Stock · 640,727 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. F3 · derivative.exercise_price: 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. F3 · price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. F4 · ownership.nature: The reported security is directly held by HB&Q NV (HB&Q COMPARTMENT III). F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionSeries A-6 Convertible Preferred Stock · Derivative | 28,981 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · derivative · entry 20 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 28,981 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. F3 · derivative.exercise_price: 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. F3 · price: 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. F3 · derivative.exercise_date: 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. F3 · derivative.expiration_date: 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. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherClass A Common Stock | 2,580,833 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 19 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 2,580,833 F10 · kind: 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. F10 · price: 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. F8 · ownership.nature: The reported security is directly held by Hummingbird Ventures III CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherClass A Common Stock | 2,631,664 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 18 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 2,631,664 F10 · kind: 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. F10 · price: 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. F7 · ownership.nature: The reported security is directly held by Hummingbird Opportunity Fund II CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherClass A Common Stock | 2,015,118 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 17 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 2,015,118 F10 · kind: 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. F10 · price: 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. F6 · ownership.nature: The reported security is directly held by Hummingbird Dragons CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherClass A Common Stock | 18,845 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 16 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 18,845 F10 · kind: 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. F10 · price: 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. F5 · ownership.nature: The reported security is directly held by Hummingbird Collective CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherClass A Common Stock | 640,727 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 15 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 640,727 F10 · kind: 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. F10 · price: 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. F4 · ownership.nature: The reported security is directly held by HB&Q NV (HB&Q COMPARTMENT III). F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherClass A Common Stock | 37,314 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 14 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 37,314 F10 · kind: 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. F10 · price: 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. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherCommon Stock | 2,580,833 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 13 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 F10 · kind: 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. F10 · price: 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. F8 · ownership.nature: The reported security is directly held by Hummingbird Ventures III CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherCommon Stock | 2,631,664 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 12 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 F10 · kind: 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. F10 · price: 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. F7 · ownership.nature: The reported security is directly held by Hummingbird Opportunity Fund II CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherCommon Stock | 2,015,118 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 11 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 F10 · kind: 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. F10 · price: 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. F6 · ownership.nature: The reported security is directly held by Hummingbird Dragons CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherCommon Stock | 18,845 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 10 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 F10 · kind: 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. F10 · price: 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. F5 · ownership.nature: The reported security is directly held by Hummingbird Collective CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherCommon Stock | 640,727 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 9 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 0 F10 · kind: 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. F10 · price: 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. F4 · ownership.nature: The reported security is directly held by HB&Q NV (HB&Q COMPARTMENT III). F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherCommon Stock | 37,314 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 8 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 F10 · kind: 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. F10 · price: 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. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionCommon Stock | 2,580,833 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 7 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 2,580,833 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. F2 · kind: 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. F3 · kind: 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. F3 · price: 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. F8 · ownership.nature: The reported security is directly held by Hummingbird Ventures III CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionCommon Stock | 2,451,665 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 6 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 2,631,664 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. F2 · kind: 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. F3 · kind: 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. F3 · price: 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. F7 · ownership.nature: The reported security is directly held by Hummingbird Opportunity Fund II CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionCommon Stock | 2,015,118 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 5 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 2,015,118 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. F2 · kind: 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. F3 · kind: 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. F3 · price: 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. F6 · ownership.nature: The reported security is directly held by Hummingbird Dragons CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionCommon Stock | 18,845 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 4 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 18,845 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. F2 · kind: 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. F3 · kind: 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. F3 · price: 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. F5 · ownership.nature: The reported security is directly held by Hummingbird Collective CommV. F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionCommon Stock | 640,727 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 3 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 640,727 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. F2 · kind: 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. F3 · kind: 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. F3 · price: 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. F4 · ownership.nature: The reported security is directly held by HB&Q NV (HB&Q COMPARTMENT III). F9 · ownership.nature: 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 Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Read SEC document |
| November 07, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionCommon Stock | 28,981 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 2 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 37,314 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. F2 · kind: 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. F3 · kind: 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. F3 · price: 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. Read SEC document |
| November 06, 2025 Filed Nov 10, 2025 21:38 UTC | BillionToOne, Inc. BLLN · Entity 3992 | GrantCommon Stock | 8,333 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-25-274946 · ownership.xml · nonDerivative · entry 1 Ileri Firat · CIK 0002087908 · Director · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 8,333 F1 · shares: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest over three years in equal annual installments on the anniversary of November 6, 2025, subject to the Reporting Person's continuous service to the Issuer through each such vesting date. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.