Billiontoone, Inc.
A molecular diagnostics company that reads cell-free DNA from a simple blood draw to offer ultrasensitive prenatal and cancer tests. Its UNITY prenatal portfolio screens for fetal conditions and antigens without needing a father's sample, while its Northstar oncology tests guide therapy choices and monitor response. Founded in 2016 by two scientists who met as Princeton roommates, the name "BillionToOne" captures the ability to spot a single DNA letter among the three billion in the human genome — and, the founders joke, it was the only domain name they could afford.
Granted 11.3K
Granted 11.3K
Granted 11.3K · Bought 2.5K
Granted 26.3K · Sold 38.8K
Granted 11.3K · Bought 41.7K
Granted 30.0K · Bought 1.0K · Sold 30.0K
Granted 4.0K · Sold 16.0K
Bought 800 · Sold 4.2K
Bought 6.9K · Sold 14.0K
Granted 7.9K
Bought 100
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Kolluri Krishna KittuDirector, 10% owner · 45 transactions | — | 9.20M | 11.3K | — | — |
| Decoster Lukas +7 co-filers10% owner · 15 transactions | — | 8.71M | — | — | — |
| NeoTribe Associates I, L.P. +6 co-filers10% owner · 29 transactions | — | 6.31M | — | — | — |
| Ileri FiratDirector, 10% owner · 20 transactions | — | 6.17M | 11.3K | — | — |
| Rai AkshayDirector · 9 transactions | — | 5.38M | 11.3K | 2.5K | — |
| Atay OguzhanSee Remarks, Director · 22 transactions | — | 2.70M | 26.3K | — | 38.8K |
| Bremner Thomas SDirector · 31 transactions | — | 2.55M | 11.3K | 41.7K | — |
| Tsao DavidChief Technology Officer, Director · 19 transactions | — | 2.33M | 30.0K | 1.0K | 30.0K |
| Sakakibara Shan RikuChief Product Officer · 7 transactions | — | 216.0K | 4.0K | — | 16.0K |
| ten Bosch John RoderickSVP of Laboratory Operations · 6 transactions | — | 26.5K | — | 800 | 4.2K |
| Johnson Nancy JoAnnSee Remarks · 10 transactions | — | 21.9K | — | 6.9K | 14.0K |
| Pagano AnthonyDirector · 2 transactions | — | 7.9K | 7.9K | — | — |
| Lynch Thomas P.See Remarks · 3 transactions | — | 600 | — | 100 | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: -50.0K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.