SAKAKIBARA SHAN RIKU (Chief Product Officer) sold 3.7% of their position (8K shares) of BILLIONTOONE, INC. on the open market
Open‑market sale worth $880.0K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 2 sales
Filed: 6/26/2026ACC: 0002088547-26-000004
Officer· Chief Product Officer
Since Nov 2025
-8K
Net shares
Net seller
$880.0K
Total sold
2
Open market trades
0B · 2S
4
Total transactions
4K acquired · 12K disposed
Non-Derivative Transactions3
Class A Common Stock
Direct
Shares
+4K
Price / share
$8.65
Trade value
$34.60K
% of position
1.9%
6/24/2026
212K→216K
Class A Common Stock
Direct
Shares
−4K
Price / share
$110.00
Trade value
$440K
% of position
1.9%
6/24/2026
216K→212K
Class A Common Stock
Direct
Shares
−4K
Price / share
$110.00
Trade value
$440K
% of position
1.9%
6/24/2026
212K→208K
Total
Net shares
−4K
Net value
-$845.40K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Class A Common Stock Direct | 6/24/2026 | M · Option Exercise | +4K | $8.65 | $34.60K | 1.9% | 212K | 216K |
| Class A Common Stock Direct | 6/24/2026 | S · Sale | −4K | $110.00 | $440K | 1.9% | 216K | 212K |
| Class A Common Stock Direct | 6/24/2026 | S · Sale | −4K | $110.00 | $440K | 1.9% | 212K | 208K |
| Total | −4K | -$845.40K | ||||||
Derivative Transactions1
Stock Option (right to buy)
Direct
Converts to
Class A Common Stock
4K shares
Shares
−4K
Strike price
8.65
Held after
36K
Exercisable
—
6/24/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Stock Option (right to buy) Direct | Class A Common Stock4K shares | 6/24/2026 | M · Option Exercise | −4K | 8.65 | — | 36K |