BillionToOne, Inc. (BLLN)
$110.67+$7.06 (+6.81%) Latest session
BillionToOne Inc is a molecular diagnostics company. It offers a portfolio of ultrasensitive tests covering prenatal genetic testing, cancer therapy selection, and response monitoring, which are based on its Quantitative Counting Templates (QCT) molecular counting platform. The company's product portfolio comprises UNITY, a portfolio of prenatal testing products that can conduct fetal risk analysis without requiring a paternal sample; Northstar Select, a ultrasensitive liquid biopsy test that provides insights into appropriate therapies for stage III or IV cancer patients; and Northstar Response, a tissue-free, pan-cancer, liquid biopsy test that measures several genomic loci uniquely methylated in cancer to provide insight into dynamic changes in therapy response.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 113 | 267,037 | $31.71M |
| Option exercise | 48 | 399,576 | |
| Bona-fide gift | 3 | 43,500 | |
| Other acquisition / disposition | 20 | 642,686 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
53 Form 4 filings on record, the earliest from Nov 10, 2025, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oguzhan Atay - Officer | Option exercise | Class A Common Stock | 16,666 | $2.80 | $47K | |
| Oguzhan Atay - Officer | Option exercise | Class A Common Stock | 8,333 | $2.80 | $23K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 4,465 | $98.63 | $440K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 2,456 | $99.57 | $245K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 2,531 | $100.58 | $255K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 7,214 | $101.44 | $732K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,680 | $98.64 | $166K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,500 | $99.57 | $149K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 2,010 | $100.78 | $203K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 3,143 | $101.49 | $319K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 2,666 | $98.00 | $261K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 2,666 | $98.00 | $261K | |
| Oguzhan Atay - Officer | Option exercise | Stock Option (right to buy) | 16,666 | $2.80 | $47K | |
| Oguzhan Atay - Officer | Option exercise | Stock Option (right to buy) | 8,333 | $2.80 | $23K | |
| Shan Riku Sakakibara - Officer | Gift | Class A Common Stock | 3,500 | $0.00 | - | |
| Bosch John Roderick Ten - Officer | Open-market sale | Class A Common Stock | 1,416 | $97.54 | $138K | |
| David Tsao - Officer | Option exercise | Class A Common Stock | 10,000 | $2.80 | $28K | |
| David Tsao - Officer | Option exercise | Class A Common Stock | 10,000 | $2.80 | $28K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 10,000 | $97.54 | $975K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 10,000 | $100.00 | $1.00M | |
| David Tsao - Officer | Option exercise | Stock Option (right to buy) | 10,000 | $2.80 | $28K | |
| David Tsao - Officer | Option exercise | Stock Option (right to buy) | 10,000 | $2.80 | $28K | |
| Thomas P. Lynch - Officer | Option exercise | Class A Common Stock | 11,042 | $8.65 | $96K | |
| Thomas P. Lynch - Officer | Option exercise | Class A Common Stock | 3,969 | $11.55 | $46K | |
| Thomas P. Lynch - Officer | Option exercise | Class A Common Stock | 1,663 | $17.12 | $28K | |
| Thomas P. Lynch - Officer | Option exercise | Class A Common Stock | 3,326 | $30.78 | $102K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 38 | $96.47 | $4K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 1,944 | $98.97 | $192K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 8,285 | $100.12 | $830K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 775 | $100.83 | $78K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 614 | $99.00 | $61K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 2,997 | $100.11 | $300K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 358 | $100.82 | $36K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 385 | $99.22 | $38K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 1,131 | $100.33 | $113K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 147 | $101.41 | $15K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 576 | $98.89 | $57K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 2,518 | $100.20 | $252K | |
| Thomas P. Lynch - Officer | Open-market sale | Class A Common Stock | 232 | $100.92 | $23K | |
| Thomas P. Lynch - Officer | Option exercise | Stock Option (right to buy) | 11,042 | $8.65 | $96K | |
| Thomas P. Lynch - Officer | Option exercise | Stock Option (right to buy) | 3,969 | $11.55 | $46K | |
| Thomas P. Lynch - Officer | Option exercise | Stock Option (right to buy) | 1,663 | $17.12 | $28K | |
| Thomas P. Lynch - Officer | Option exercise | Stock Option (right to buy) | 3,326 | $30.78 | $102K | |
| Oguzhan Atay - Officer | Other | Class A Common Stock | 20,000 | $0.00 | - | |
| Oguzhan Atay - Officer | Gift | Class A Common Stock | 20,000 | $0.00 | - | |
| Oguzhan Atay - Officer | Other | Class B Common Stock | 20,000 | $0.00 | - | |
| David Tsao - Officer | Other | Class A Common Stock | 20,000 | $0.00 | - | |
| David Tsao - Officer | Gift | Class A Common Stock | 20,000 | $0.00 | - | |
| David Tsao - Officer | Other | Class B Common Stock | 20,000 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 129,780 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 7,980 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 7,980 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 24,222 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 2,405 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 2,405 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 271,028 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 38,106 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 38,106 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 10,921 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 719 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 719 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 5,761 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 1,666 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 15,244 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Other | Class A Common Stock | 5,644 | $0.00 | - | |
| David Tsao - Officer | Option exercise | Class A Common Stock | 10,000 | $2.80 | $28K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 10,000 | $100.00 | $1.00M | |
| David Tsao - Officer | Option exercise | Stock Option (right to buy) | 10,000 | $2.80 | $28K | |
| Bosch John Roderick Ten - Officer | Open-market sale | Class A Common Stock | 1,417 | $100.00 | $142K | |
| Bosch John Roderick Ten - Officer | Open-market sale | Class A Common Stock | 1,417 | $92.86 | $132K | |
| David Tsao - Officer | Option exercise | Class A Common Stock | 10,000 | $2.80 | $28K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 10,000 | $92.86 | $929K | |
| David Tsao - Officer | Option exercise | Stock Option (right to buy) | 10,000 | $2.80 | $28K | |
| Oguzhan Atay - Officer | Option exercise | Class A Common Stock | 15,539 | $2.80 | $44K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 15,539 | $150.03 | $2.33M | |
| Oguzhan Atay - Officer | Option exercise | Stock Option (right to buy) | 15,539 | $2.80 | $44K | |
| Oguzhan Atay - Officer | Option exercise | Class A Common Stock | 20,000 | $2.80 | $56K | |
| Oguzhan Atay - Officer | Option exercise | Class A Common Stock | 6,250 | $2.80 | $18K | |
| Oguzhan Atay - Officer | Option exercise | Class A Common Stock | 6,250 | $2.80 | $18K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 269 | $133.01 | $36K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 555 | $133.81 | $74K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 135 | $135.42 | $18K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 6,354 | $136.42 | $867K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 9,989 | $137.25 | $1.37M | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 2,431 | $138.09 | $336K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 267 | $139.21 | $37K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 84 | $133.00 | $11K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 173 | $133.81 | $23K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 44 | $135.41 | $6K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,981 | $136.42 | $270K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 3,124 | $137.25 | $429K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 762 | $138.09 | $105K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 82 | $139.21 | $11K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 84 | $133.01 | $11K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 173 | $133.81 | $23K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 43 | $135.41 | $6K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,983 | $136.42 | $271K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 3,125 | $137.25 | $429K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 760 | $138.09 | $105K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 82 | $139.20 | $11K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 6,250 | $137.37 | $859K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 6,250 | $137.37 | $859K | |
| Oguzhan Atay - Officer | Option exercise | Stock Option (right to buy) | 20,000 | $2.80 | $56K | |
| Oguzhan Atay - Officer | Option exercise | Stock Option (right to buy) | 6,250 | $2.80 | $18K | |
| Oguzhan Atay - Officer | Option exercise | Stock Option (right to buy) | 6,250 | $2.80 | $18K | |
| Shan Riku Sakakibara - Officer | Open-market sale | Class A Common Stock | 4,000 | $140.21 | $561K | |
| Nancy Joann Johnson - Officer | Open-market sale | Class A Common Stock | 2,133 | $126.98 | $271K | |
| Nancy Joann Johnson - Officer | Open-market sale | Class A Common Stock | 5,559 | $127.89 | $711K | |
| Nancy Joann Johnson - Officer | Open-market sale | Class A Common Stock | 5,601 | $128.96 | $722K | |
| Nancy Joann Johnson - Officer | Open-market sale | Class A Common Stock | 906 | $129.78 | $118K | |
| Bosch John Roderick Ten - Officer | Open-market sale | Class A Common Stock | 1,417 | $125.46 | $178K | |
| Bosch John Roderick Ten - Officer | Open-market sale | Class A Common Stock | 1,417 | $125.46 | $178K | |
| Bosch John Roderick Ten - Officer | Open-market sale | Class A Common Stock | 1,417 | $125.46 | $178K | |
| David Tsao - Officer | Option exercise | Class A Common Stock | 10,000 | $2.80 | $28K | |
| David Tsao - Officer | Option exercise | Class A Common Stock | 10,000 | $2.80 | $28K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 1,102 | $122.90 | $135K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 2,477 | $123.84 | $307K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 2,415 | $124.90 | $302K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 3,185 | $125.85 | $401K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 821 | $126.89 | $104K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 1,138 | $122.84 | $140K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 2,274 | $123.71 | $281K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 1,725 | $124.65 | $215K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 3,835 | $125.76 | $482K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 1,028 | $126.90 | $130K | |
| David Tsao - Officer | Option exercise | Stock Option (right to buy) | 10,000 | $2.80 | $28K | |
| David Tsao - Officer | Option exercise | Stock Option (right to buy) | 10,000 | $2.80 | $28K | |
| Oguzhan Atay - Officer | Option exercise | Class A Common Stock | 12,500 | $2.80 | $35K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 7,489 | $125.43 | $939K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 2,002 | $126.48 | $253K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 2,657 | $127.44 | $339K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 352 | $128.23 | $45K | |
| Oguzhan Atay - Officer | Option exercise | Stock Option (right to buy) | 12,500 | $2.80 | $35K | |
| Shan Riku Sakakibara - Officer | Option exercise | Class A Common Stock | 174 | $8.65 | $2K | |
| Shan Riku Sakakibara - Officer | Option exercise | Class A Common Stock | 1,117 | $30.78 | $34K | |
| Shan Riku Sakakibara - Officer | Option exercise | Class A Common Stock | 1,355 | $30.78 | $42K | |
| Shan Riku Sakakibara - Officer | Option exercise | Class A Common Stock | 1,354 | $30.78 | $42K | |
| Shan Riku Sakakibara - Officer | Open-market sale | Class A Common Stock | 4,000 | $125.00 | $500K | |
| Shan Riku Sakakibara - Officer | Open-market sale | Class A Common Stock | 174 | $125.00 | $22K | |
| Shan Riku Sakakibara - Officer | Open-market sale | Class A Common Stock | 1,117 | $125.00 | $140K | |
| Shan Riku Sakakibara - Officer | Open-market sale | Class A Common Stock | 1,355 | $125.00 | $169K | |
| Shan Riku Sakakibara - Officer | Open-market sale | Class A Common Stock | 1,354 | $125.00 | $169K | |
| Shan Riku Sakakibara - Officer | Option exercise | Stock Option (right to buy) | 174 | $8.65 | $2K | |
| Shan Riku Sakakibara - Officer | Option exercise | Stock Option (right to buy) | 1,117 | $30.78 | $34K | |
| Shan Riku Sakakibara - Officer | Option exercise | Stock Option (right to buy) | 1,355 | $30.78 | $42K | |
| Shan Riku Sakakibara - Officer | Option exercise | Stock Option (right to buy) | 1,354 | $30.78 | $42K | |
| Oguzhan Atay - Officer | Option exercise | Class A Common Stock | 20,000 | $2.80 | $56K | |
| Oguzhan Atay - Officer | Option exercise | Class A Common Stock | 6,250 | $2.80 | $18K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,320 | $118.49 | $156K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 3,639 | $119.37 | $434K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,828 | $120.66 | $221K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,115 | $121.84 | $136K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 6,223 | $123.07 | $766K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 5,253 | $123.81 | $650K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 622 | $124.61 | $78K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 412 | $118.49 | $49K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,138 | $119.36 | $136K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 570 | $120.66 | $69K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 349 | $121.84 | $43K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,945 | $123.07 | $239K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,642 | $123.81 | $203K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 194 | $124.61 | $24K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,034 | $118.81 | $123K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 591 | $119.67 | $71K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 591 | $119.67 | $71K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 444 | $120.69 | $54K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 444 | $120.69 | $54K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 587 | $122.08 | $72K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 2,323 | $123.25 | $286K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,221 | $124.04 | $151K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,221 | $124.04 | $151K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 50 | $124.74 | $6K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 50 | $124.74 | $6K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 1,034 | $118.81 | $123K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 586 | $122.08 | $72K | |
| Oguzhan Atay - Officer | Open-market sale | Class A Common Stock | 2,324 | $123.25 | $286K | |
| Oguzhan Atay - Officer | Option exercise | Stock Option (right to buy) | 20,000 | $2.80 | $56K | |
| Oguzhan Atay - Officer | Option exercise | Stock Option (right to buy) | 6,250 | $2.80 | $18K | |
| Nancy Joann Johnson - Officer | Open-market sale | Class A Common Stock | 801 | $124.91 | $100K | |
| Bosch John Roderick Ten - Officer | Open-market sale | Class A Common Stock | 1,416 | $120.00 | $170K | |
| Shan Riku Sakakibara - Officer | Option exercise | Class A Common Stock | 4,000 | $8.65 | $35K | |
| Shan Riku Sakakibara - Officer | Open-market sale | Class A Common Stock | 4,000 | $110.00 | $440K | |
| Shan Riku Sakakibara - Officer | Open-market sale | Class A Common Stock | 4,000 | $110.00 | $440K | |
| Shan Riku Sakakibara - Officer | Option exercise | Stock Option (right to buy) | 4,000 | $8.65 | $35K | |
| Bosch John Roderick Ten - Officer | Open-market sale | Class A Common Stock | 1,416 | $101.47 | $144K | |
| Bosch John Roderick Ten - Officer | Open-market sale | Class A Common Stock | 1,416 | $101.47 | $144K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 600 | $98.74 | $59K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 1,000 | $100.05 | $100K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 2,461 | $101.37 | $249K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 2,978 | $102.60 | $306K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 2,398 | $103.63 | $249K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 563 | $104.32 | $59K | |
| David Tsao - Officer | Option exercise | Stock Option (right to buy) | 10,000 | $2.80 | $28K | |
| David Tsao - Officer | Option exercise | Stock Option (right to buy) | 10,000 | $2.80 | $28K | |
| David Tsao - Officer | Option exercise | Class A Common Stock | 10,000 | $2.80 | $28K | |
| David Tsao - Officer | Option exercise | Class A Common Stock | 10,000 | $2.80 | $28K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 1,704 | $100.37 | $171K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 2,361 | $101.55 | $240K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 2,816 | $102.77 | $289K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 2,889 | $103.68 | $300K | |
| David Tsao - Officer | Open-market sale | Class A Common Stock | 230 | $104.47 | $24K | |
| Thomas S. Bremner | Grant or award | Class A Common Stock | 3,017 | $0.00 | - | |
| Krishna Kittu Kolluri - Director | Grant or award | Class A Common Stock | 3,017 | $0.00 | - | |
| Firat Ileri - Director | Grant or award | Class A Common Stock | 3,017 | $0.00 | - | |
| Anthony Pagano - Director | Grant or award | Class A Common Stock | 3,017 | $0.00 | - |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| Lynch Thomas P. | Officer | 35,112 | $3.87M | View on EDGAR | |
| Atay Oguzhan | Officer, Director | 24,999 | $2.51M | View on EDGAR | |
| Atay Oguzhan | Member of immediate family of any of the foregoing | 5,332 | $523K | View on EDGAR |
BillionToOne, Inc. (BLLN) had 24 insider filings in the last 90 days, with the most recent on 2026-09-16. The full record for BLLN runs to 53 Form 4 filings, the earliest from 2025-11-10. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of BLLN were filed in the last 90 days. 11 purchases are on record for this company.
113 insider sales of BLLN were filed in the last 90 days, totaling $31.71M.
This page tracks BLLN Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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