Sakakibara Shan Riku - Insider Trading & Ownership

Real time insider trading transaction history:

  • Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
Time period
Insider Trading Transactions for Sakakibara Shan Riku
Common stock purchase or sale:
Transaction
Date
Reported
DateTime
CompanySymbolInsider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2026-07-09
Sale
2026-07-13
4:39 pm
BillionToOne Inc.BLLNSakakibara Shan Riku
Chief Product Officer
8,000$125$1,000,000427,411
(Direct)
View
2026-06-24
Sale
2026-06-26
5:20 pm
BillionToOne Inc.BLLNSakakibara Shan Riku
Chief Product Officer
8,000$110$880,000244,000
(Direct)
View
2026-06-08
Sale
2026-06-10
8:36 pm
BillionToOne Inc.BLLNSakakibara Shan Riku
Chief Product Officer
8,000$98.22$785,800212,000
(Direct)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
DateTime
Exercisable
Expiration
CompanySymnbolInsider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing
2026-07-09
Exercise
2026-07-13
4:39 pm
N/A
2033-01-18
BillionToOne Inc.BLLNSakakibara Shan Riku
Chief Product Officer
174$8.65427,411
(Direct)
View
2026-07-09
Exercise
2026-07-13
4:39 pm
N/A
2035-09-30
BillionToOne Inc.BLLNSakakibara Shan Riku
Chief Product Officer
3,826$30.78427,411
(Direct)
View
2026-06-24
Exercise
2026-06-26
5:20 pm
N/A
2033-01-18
BillionToOne Inc.BLLNSakakibara Shan Riku
Chief Product Officer
4,000$8.65244,000
(Direct)
View
2025-11-07
Other
2025-11-12
6:12 pm
N/A
2031-06-07
BillionToOne Inc.BLLNSakakibara Shan Riku
Chief Product Officer
530,000$0815,000
(Direct)
View

Ownership
2025-11-05
9:38 pm
N/A
N/A
BillionToOne Inc.BLLNSakakibara Shan Riku
Chief Product Officer
0$0375,000
(Direct)
View