Latest filing published 14 Sept 2026 for BillionToOne, Inc..
Filing timeline
BuySaleInsider track record
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Shan Riku Sakakibara: trading record in brief
All filings by Shan Riku Sakakibara on record concern BillionToOne, Inc. We count 18 filings; the first trade dates from 7 November 2025 and the latest from 10 September 2026.
No open-market purchase appears, only 10 sales worth €2.8M. Outside the open market, there are 5 option exercises. Since January 2026: no purchases and 10 sales on the market.
On 14 September 2026 came the latest disclosure, a transaction in BillionToOne, Inc. The median gap between a trade and its publication by SEC (Form 4) is 4 days. The legal deadline for a Form 4 is two business days after the transaction. Keep in mind that insiders sell for many reasons unrelated to the outlook, from tax bills to estate planning. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
Companies and markets linked to Shan Riku Sakakibara
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
- 3,500 shares0Class A Common StockSEC:0002088547-26-000010:0
- 4,000 shares@ US$140.21Class A Common StockSEC:0002088547-26-000008:0
- 174 shares@ US$8.650.0000% mcap0.1% of flowClass A Common StockSEC:0002088547-26-000006:0
- 1,117 shares@ US$30.780.0008% mcap1.1% of flowClass A Common StockSEC:0002088547-26-000006:1
- 1,355 shares@ US$30.780.0010% mcap1.4% of flowClass A Common StockSEC:0002088547-26-000006:2
- 1,354 shares@ US$30.780.0010% mcap1.4% of flowClass A Common StockSEC:0002088547-26-000006:3
- 4,000 shares@ US$125.000.012% mcap16.6% of flowClass A Common StockSEC:0002088547-26-000006:4
- 174 shares@ US$125.000.0005% mcap0.7% of flowClass A Common StockSEC:0002088547-26-000006:5
- 1,117 shares@ US$125.000.0034% mcap4.6% of flowClass A Common StockSEC:0002088547-26-000006:6
- 1,355 shares@ US$125.000.0042% mcap5.6% of flowClass A Common StockSEC:0002088547-26-000006:7
- 1,354 shares@ US$125.000.0042% mcap5.6% of flowClass A Common StockSEC:0002088547-26-000006:8
- 4,000 sharesClass A Common StockSEC:0002088547-26-000004:0
- 4,000 sharesClass A Common StockSEC:0002088547-26-000004:1
- 4,000 sharesClass A Common StockSEC:0002088547-26-000004:2
- 4,000 sharesClass A Common StockSEC:0002088547-26-000002:0
- 4,000 sharesClass A Common StockSEC:0002088547-26-000002:1
- 220,000 sharesCommon StockSEC:0001193125-25-278137:0
17 of 17 declarations
