InsiderTrades

Sakakibara Shan Riku

SEC CIK 2088547 · EDGAR

Buying vs selling by month open-market trades, last 24 months, BLLN
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
BLLNBillionToOne, Inc.Chief Product Off 196.5K — $3.23M 82025-11-072026-09-10

Most active insiders at BLLN, 12 months

#InsiderTitleBoughtSold
1 Atay OguzhanSee Remarks, Dir —$21.63M
2 Tsao DavidCTO, Dir $60.0K$8.45M
3 Lynch Thomas P.See Remarks $6,000$5.87M
4 Johnson Nancy JoAnnSee Remarks $414.0K$3.32M
5 Sakakibara Shan RikuChief Product Off —$3.23M
6 Bremner Thomas SDir $2.50M—
7 ten Bosch John RoderickSee Remarks $48.0K$1.55M
8 Rai AkshayDir $150.0K—
9 Pagano AnthonyDir ——
10 HB&Q NV (HB&Q COMPARTMENT III)10% ——

Transactions 8

Type
Reset
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