Sakakibara Shan Riku
SEC CIK 2088547 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| BLLN | BillionToOne, Inc. | Chief Product Off | 196.5K | — | $3.23M | 8 | 2025-11-07 | 2026-09-10 |
Most active insiders at BLLN, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Atay Oguzhan | See Remarks, Dir | — | $21.63M |
| 2 | Tsao David | CTO, Dir | $60.0K | $8.45M |
| 3 | Lynch Thomas P. | See Remarks | $6,000 | $5.87M |
| 4 | Johnson Nancy JoAnn | See Remarks | $414.0K | $3.32M |
| 5 | Sakakibara Shan Riku | Chief Product Off | — | $3.23M |
| 6 | Bremner Thomas S | Dir | $2.50M | — |
| 7 | ten Bosch John Roderick | See Remarks | $48.0K | $1.55M |
| 8 | Rai Akshay | Dir | $150.0K | — |
| 9 | Pagano Anthony | Dir | — | — |
| 10 | HB&Q NV (HB&Q COMPARTMENT III) | 10% | — | — |
Transactions 8
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-09-14 18:47 | 2026-09-10 | BLLN | BillionToOne, Inc. | Sakakibara Shan Riku | Chief Product Off | G - Gift | $0.00 | -3,500 | 196.5K | -2% | $0 | |
| T | 2026-08-04 16:32 | 2026-07-31 | BLLN | BillionToOne, Inc. | Sakakibara Shan Riku | Chief Product Off | S - Sale | $140.21 | -4,000 | 200.0K | -2% | -$560.8K |
| DMT | 2026-07-13 16:39 | 2026-07-09 | BLLN | BillionToOne, Inc. | Sakakibara Shan Riku | Chief Product Off | M - OptEx | $29.82 | +4,000 | 212.0K | +2% | +$119.3K |
| DMT | 2026-07-13 16:39 | 2026-07-09 | BLLN | BillionToOne, Inc. | Sakakibara Shan Riku | Chief Product Off | S - Sale+OE | $125.00 | -8,000 | 204.0K | -4% | -$1.00M |
| DT | 2026-06-26 17:20 | 2026-06-24 | BLLN | BillionToOne, Inc. | Sakakibara Shan Riku | Chief Product Off | M - OptEx | $8.65 | +4,000 | 216.0K | +2% | +$34.6K |
| DMT | 2026-06-26 17:20 | 2026-06-24 | BLLN | BillionToOne, Inc. | Sakakibara Shan Riku | Chief Product Off | S - Sale+OE | $110.00 | -8,000 | 208.0K | -4% | -$880.0K |
| MT | 2026-06-10 20:36 | 2026-06-08 | BLLN | BillionToOne, Inc. | Sakakibara Shan Riku | Chief Product Off | S - Sale | $98.22 | -8,000 | 212.0K | -4% | -$785.8K |
| DM | 2025-11-12 | 2025-11-07 | BLLN | BillionToOne, Inc. | Sakakibara Shan Riku | Chief Product Off | J - Other | — | 0 | 220.0K | New | — |
Purchase Sale Sale after option exercise All abbreviations