Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| BillionToOne, Inc.BLLN · Entity 3992 | Director · Chairman and CEO | October 12, 2026 | October 14, 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 October 12, 2026 · Filed October 14, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Common StockSEC Table I · non-derivative | Direct | 0 |
Ending reported balance
After 2026-10-12 transaction · row 6
6 source rows · reconciled sequenceRow 1 · 2026-10-12 · Exercise / conversion · Acquired 16,667 · Balance 16,667 F1: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. Row 2 · 2026-10-12 · Sale · Disposed 1,961 · Balance 14,706 F1: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F2: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.250 to $92.170 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Row 3 · 2026-10-12 · Sale · Disposed 2,553 · Balance 12,153 F1: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F3: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.2596 to $93.255 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Row 4 · 2026-10-12 · Sale · Disposed 6,763 · Balance 5,390 F1: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F4: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.260 to $94.225 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Row 5 · 2026-10-12 · Sale · Disposed 3,869 · Balance 1,521 F1: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F5: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.265 to $95.205 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Row 6 · 2026-10-12 · Sale · Disposed 1,521 · Balance 0 F1: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F6: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.945 to $96.765 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |
| Class A Common StockSEC Table I · non-derivative | IndirectBy spouse | 151,835 |
Reported balance
After 2026-10-12 transaction · row 7
Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source rowRow 7 · 2026-10-12 · Sale · Disposed 2,667 · Balance 151,835 F7: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person's spouse on June 7, 2026. F8: Represents shares held by the Reporting Person's spouse. |
| Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $2.80 · Expires 2031-06-07 | Direct | 476,962 |
Reported balance
After 2026-10-12 transaction · row 8
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 8 · 2026-10-12 · Exercise / conversion · Disposed 16,667 · Balance 476,962 F9: The options are fully vested and exercisable. |
Filing footnotes · ownership attribution and instrument terms
F1: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.
F2: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.250 to $92.170 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F3: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.2596 to $93.255 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F4: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.260 to $94.225 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F5: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.265 to $95.205 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F6: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.945 to $96.765 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F7: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person's spouse on June 7, 2026.
F8: Represents shares held by the Reporting Person's spouse.
F9: The options are fully vested and exercisable.
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 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionClass B Common Stock · Derivative | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · derivative · entry 17 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 2,217,542 Underlying: Class A Common Stock · 10,000 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. F8 · derivative.exercise_price: These shares of Class B common stock were converted at a 1:1 ratio for shares of Class A common stock at the option of the holder. F11 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A common stock at the option of the holder. Class B common stock will convert automatically on a one-for-one basis into shares of the Issuer's Class A common stock upon the earliest of (i) seven years from the date of filing of the amended and restated certificate of incorporation, in connection with the Offering and (ii) the date specified by a vote of the holders of Class B common stock representing a majority of the outstanding shares of Class B common stock. F8 · price: These shares of Class B common stock were converted at a 1:1 ratio for shares of Class A common stock at the option of the holder. F11 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A common stock at the option of the holder. Class B common stock will convert automatically on a one-for-one basis into shares of the Issuer's Class A common stock upon the earliest of (i) seven years from the date of filing of the amended and restated certificate of incorporation, in connection with the Offering and (ii) the date specified by a vote of the holders of Class B common stock representing a majority of the outstanding shares of Class B common stock. F11 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A common stock at the option of the holder. Class B common stock will convert automatically on a one-for-one basis into shares of the Issuer's Class A common stock upon the earliest of (i) seven years from the date of filing of the amended and restated certificate of incorporation, in connection with the Offering and (ii) the date specified by a vote of the holders of Class B common stock representing a majority of the outstanding shares of Class B common stock. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | Exercise / conversionStock Option (right to buy) · Derivative | 6,250 | $2.80 Strike: $2.80 | $17,500.00 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · derivative · entry 16 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 613,750 Underlying: Class A Common Stock · 6,250 shares Expires 2031-06-07 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F10 · derivative.exercise_date: The options are fully vested and exercisable. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | Exercise / conversionStock Option (right to buy) · Derivative | 20,000 | $2.80 Strike: $2.80 | $56,000.00 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · derivative · entry 15 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 620,000 Underlying: Class A Common Stock · 20,000 shares Expires 2031-06-07 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F10 · derivative.exercise_date: The options are fully vested and exercisable. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | SaleClass A Common Stock | 6,250 | $100.00 | $625,000.00 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 14 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Indirect · By spouse Disclosed balance after: 187,500 F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. F9 · ownership.nature: Represents shares held by the Reporting Person's spouse. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | SaleClass A Common Stock | 6,250 | $96.45 | $602,812.50 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 13 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Indirect · By spouse Disclosed balance after: 193,750 F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. F9 · ownership.nature: Represents shares held by the Reporting Person's spouse. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionClass A Common Stock | 10,000 | $0.00 | $0.00 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 11 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 10,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F8 · kind: These shares of Class B common stock were converted at a 1:1 ratio for shares of Class A common stock at the option of the holder. F8 · price: These shares of Class B common stock were converted at a 1:1 ratio for shares of Class A common stock at the option of the holder. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | SaleClass A Common Stock | 6,250 | $100.00 | $625,000.00 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 10 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 0 F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | SaleClass A Common Stock | 556 | $99.97 | $55,582.65 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 9 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 6,250 F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. F7 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.640 to $100.540 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | SaleClass A Common Stock | 3,605 | $99.06 | $357,122.12 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 8 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 6,806 F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. F6 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $98.560 to $99.550 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | SaleClass A Common Stock | 4,066 | $98.12 | $398,959.58 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 7 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 10,411 F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. F5 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $97.560 to $98.5428 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | SaleClass A Common Stock | 4,372 | $96.89 | $423,612.26 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 6 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 14,477 F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. F4 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $96.530 to $97.2113 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | SaleClass A Common Stock | 1,856 | $95.59 | $177,414.67 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 5 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 18,849 F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. F3 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.320 to $96.225 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | SaleClass A Common Stock | 5,466 | $94.76 | $517,972.92 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 4 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 20,705 F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. F2 · price: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.300 to $95.280 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | SaleClass A Common Stock | 79 | $100.87 | $7,968.73 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 3 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 26,171 F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | Exercise / conversionClass A Common Stock | 6,250 | $2.80 | $17,500.00 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 2 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 26,250 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. Read SEC document |
| June 08, 2026 Filed Jun 11, 2026 00:35 UTC | BillionToOne, Inc. BLLN · Entity 3992 | Exercise / conversionClass A Common Stock | 20,000 | $2.80 | $56,000.00 |
DisclosureSEC source: 0002088549-26-000002 · wk-form4_1781138152.xml · nonDerivative · entry 1 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 20,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherStock Option (right to buy) · Derivative | 1,003,102 | Not disclosed Strike: $20.04 | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · derivative · entry 14 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,003,102 Underlying: Class A Common Stock · 1,003,102 shares Expires 2035-06-18 F1 · kind: The total represents shares received upon conversion of shares of Series A-1 Convertible Preferred Stock. F1 · price: The total represents shares received upon conversion of shares of Series A-1 Convertible Preferred Stock. F8 · derivative.exercise_date: The options are subject to a service-based vesting requirement, which shall be satisfied over a six-year period. The options vest and become exercisable in equal monthly installments commencing on June 11, 2025, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherStock Option (right to buy) · Derivative | 1,003,102 | Not disclosed Strike: $20.04 | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · derivative · entry 13 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 1,003,102 shares Expires 2035-06-18 F1 · kind: The total represents shares received upon conversion of shares of Series A-1 Convertible Preferred Stock. F1 · price: The total represents shares received upon conversion of shares of Series A-1 Convertible Preferred Stock. F8 · derivative.exercise_date: The options are subject to a service-based vesting requirement, which shall be satisfied over a six-year period. The options vest and become exercisable in equal monthly installments commencing on June 11, 2025, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherStock Option (right to buy) · Derivative | 640,000 | Not disclosed Strike: $2.80 | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · derivative · entry 12 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 640,000 Underlying: Class A Common Stock · 640,000 shares Expires 2031-06-07 F1 · kind: The total represents shares received upon conversion of shares of Series A-1 Convertible Preferred Stock. F1 · price: The total represents shares received upon conversion of shares of Series A-1 Convertible Preferred Stock. F7 · derivative.exercise_date: The options are fully vested and exercisable. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherStock Option (right to buy) · Derivative | 640,000 | Not disclosed Strike: $2.80 | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · derivative · entry 11 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 640,000 shares Expires 2031-06-07 F1 · kind: The total represents shares received upon conversion of shares of Series A-1 Convertible Preferred Stock. F1 · price: The total represents shares received upon conversion of shares of Series A-1 Convertible Preferred Stock. F7 · derivative.exercise_date: The options are fully vested and exercisable. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherClass B Common Stock · Derivative | 2,227,542 | $0.00 | $0.00 |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · derivative · entry 10 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,227,542 Underlying: Class A Common Stock · 2,227,542 shares Expires not disclosed F6 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A common stock at the option of the holder. Class B common stock will convert automatically on a one-for-one basis into shares of the Issuer's Class A common stock upon the earliest of (i) seven years from the date of filing of the amended and restated certificate of incorporation, in connection with the Offering and (ii) the date specified by a vote of the holders of Class B common stock representing a majority of the outstanding shares of Class B common stock. F5 · kind: Following the reclassification of Common Stock into Class A Common Stock, these shares of Class A common stock were exchanged at a 1:1 ratio for shares of Class B common stock in a transaction previously approved by the Issuer's board of directors. F6 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A common stock at the option of the holder. Class B common stock will convert automatically on a one-for-one basis into shares of the Issuer's Class A common stock upon the earliest of (i) seven years from the date of filing of the amended and restated certificate of incorporation, in connection with the Offering and (ii) the date specified by a vote of the holders of Class B common stock representing a majority of the outstanding shares of Class B common stock. F6 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A common stock at the option of the holder. Class B common stock will convert automatically on a one-for-one basis into shares of the Issuer's Class A common stock upon the earliest of (i) seven years from the date of filing of the amended and restated certificate of incorporation, in connection with the Offering and (ii) the date specified by a vote of the holders of Class B common stock representing a majority of the outstanding shares of Class B common stock. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionSeries A-1 Convertible Preferred Stock · Derivative | 262,434 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · derivative · entry 9 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 262,434 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. F2 · 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. F2 · 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. F2 · 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. F2 · 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 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherClass A Common Stock | 2,227,542 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · nonDerivative · entry 8 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 F5 · kind: Following the reclassification of Common Stock into Class A Common Stock, these shares of Class A common stock were exchanged at a 1:1 ratio for shares of Class B common stock in a transaction previously approved by the Issuer's board of directors. F5 · price: Following the reclassification of Common Stock into Class A Common Stock, these shares of Class A common stock were exchanged at a 1:1 ratio for shares of Class B common stock in a transaction previously approved by the Issuer's board of directors. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherClass A Common Stock | 200,000 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · nonDerivative · entry 7 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Indirect · By spouse Disclosed balance after: 200,000 F3 · 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. F3 · 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: Represents shares held by the Reporting Person's spouse. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherClass A Common Stock | 1,965,108 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · nonDerivative · entry 6 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,227,542 F3 · 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. F3 · 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 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherClass A Common Stock | 262,434 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · nonDerivative · entry 5 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 262,434 F3 · 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. F3 · 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 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherCommon Stock | 200,000 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · nonDerivative · entry 4 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Indirect · By spouse Disclosed balance after: 0 F3 · 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. F3 · 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: Represents shares held by the Reporting Person's spouse. Read SEC document |
| November 07, 2025 Filed Nov 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherCommon Stock | 1,965,108 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · nonDerivative · entry 3 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 F3 · 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. F3 · 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 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | OtherCommon Stock | 262,434 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · nonDerivative · entry 2 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 F3 · 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. F3 · 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 12, 2025 23:14 UTC | BillionToOne, Inc. BLLN · Entity 3992 | ConversionCommon Stock | 262,434 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001193125-25-278140 · ownership.xml · nonDerivative · entry 1 Atay Oguzhan · CIK 0002088549 · Director · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 262,434 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 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. F2 · 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 |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.