Notice of Proposed Sale · 144
BillionToOne, Inc.
BLLNNASDAQEQUITYCurrent
Notice of Proposed Sale
Structured filing — 144
primary_doc.xml
Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.
Proposed-sale notice
- Issuer
- BillionToOne, Inc.
- Issuer CIK
- 0002070849
- SEC file number
- 001-42934
- Phone
- 650-460-2551
- Person for whose account securities are to be sold
- Johnson Nancy JoAnn
- Relationships to issuer
- Officer
- Street
- 1035 O'BRIEN DRIVE
- City
- MENLO PARK
- State / country code
- CA
- Postal code
- 94025
Securities proposed for sale
| Security | Proposed units | Aggregate market value | Units outstanding | Approximate sale date | Exchange | Broker / market maker |
|---|---|---|---|---|---|---|
| Class A | 14,199 | 1,821,628.48 | 41,442,834 | 07/16/2026 | NASDAQ | Fidelity Brokerage Services LLC |
Broker / market maker — proposed row 1, entry 1
- Name
- Fidelity Brokerage Services LLC
- Street
- 900 Salem Street
- City
- Smithfield
- State / country code
- RI
- Postal code
- 02917
Acquisition of securities to be sold
| Security | Acquired | Nature of acquisition | Acquired from | Amount acquired | Gift transaction | Payment date | Nature of payment |
|---|---|---|---|---|---|---|---|
| Class A | 07/03/2020 | Pre-IPO Shares | Issuer | 1,599 | N | 07/03/2020 | Cash |
| Class A | 10/01/2020 | Pre-IPO Shares | Issuer | 4,000 | N | 10/01/2020 | Cash |
| Class A | 01/06/2021 | Pre-IPO Shares | Issuer | 1,500 | N | 01/06/2021 | Cash |
| Class A | 07/07/2021 | Pre-IPO Shares | Issuer | 4,000 | N | 07/07/2021 | Cash |
| Class A | 12/29/2021 | Pre-IPO Shares | Issuer | 3,100 | N | 12/29/2021 | Cash |
Sales reported in the preceding three months
| Seller | Security | Sale date | Amount sold | Gross proceeds |
|---|---|---|---|---|
| Nancy J. Johnson | Class A | 06/08/2026 | 3,418 | 339,347.28 |
| Nancy J. Johnson | Class A | 06/09/2026 | 10,582 | 1,063,192.55 |
| Nancy J. Johnson | Class A | 07/01/2026 | 801 | 100,055.90 |
Seller — prior-sale row 1, entry 1
- Name
- Nancy J. Johnson
- Street
- 1035 O'Brien Drive
- City
- Menlo Park
- State / country code
- CA
- Postal code
- 94025
Seller — prior-sale row 2, entry 1
- Name
- Nancy J. Johnson
- Street
- 1035 O'Brien Drive
- City
- Menlo Park
- State / country code
- CA
- Postal code
- 94025
Seller — prior-sale row 3, entry 1
- Name
- Nancy J. Johnson
- Street
- 1035 O'Brien Drive
- City
- Menlo Park
- State / country code
- CA
- Postal code
- 94025
Prior-sale reporting
- Nothing to report for the preceding three months
- N
Notice signature
- Notice date
- 07/16/2026
- Signed
- /s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Nancy J. Johnson
- Plan adoption dates
- 03/06/2026