Sign in

CIK 0002070849 · Non-accelerated filer<br>Emerging growth company

BillionToOne, Inc.

Sign in to watch
Ticker
BLLN
Exchange
Nasdaq
Industry
Services-Medical Laboratories
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
811082020
Phone
650-460-2551
Business address
1035 O'BRIEN DRIVE, MENLO PARK, CA
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$26,737,121
in 19 filings, $26.7M under 10b5-1 plans

Net −$26,737,121. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Atay Oguzhan −$11.9M Chairman and CEO sold 44% of stake
  2. Tsao David −$7.7M Chief Technology Officer sold 99% of stake
  3. Lynch Thomas P. −$5.9M See Remarks sold 99% of stake
  4. ten Bosch John Roderick −$1.2M SVP of Laboratory Operations sold 41% of stake
Date Insider Transaction Shares Price Value Owned after
2026-11-09 KOLLURI KRISHNA KITTU Director Other disposition −129,780 778,679
2026-11-09 KOLLURI KRISHNA KITTU Director Other acquisition +7,980 7,980
2026-11-09 KOLLURI KRISHNA KITTU Director Other disposition −7,980 0
2026-11-09 KOLLURI KRISHNA KITTU Director Other disposition −24,222 145,328
2026-11-09 KOLLURI KRISHNA KITTU Director Other acquisition +3,704 3,704
2026-11-09 KOLLURI KRISHNA KITTU Director Other disposition −3,704 0
2026-11-09 KOLLURI KRISHNA KITTU Director Other disposition −271,028 1,626,174
2026-11-09 KOLLURI KRISHNA KITTU Director Other acquisition +58,290 58,290
2026-11-09 KOLLURI KRISHNA KITTU Director Other disposition −58,290 0
2026-11-09 KOLLURI KRISHNA KITTU Director Other disposition −10,921 65,520
2026-11-09 KOLLURI KRISHNA KITTU Director Other acquisition +719 2,876
2026-11-09 KOLLURI KRISHNA KITTU Director Other acquisition +719 2,876
2026-11-09 KOLLURI KRISHNA KITTU Director Other acquisition +5,760 63,599
2026-11-09 KOLLURI KRISHNA KITTU Director Other acquisition +2,302 65,901
2026-11-09 KOLLURI KRISHNA KITTU Director Other acquisition +23,316 89,217
2026-11-09 KOLLURI KRISHNA KITTU Director Other acquisition +5,643 94,860
2026-11-06 Ileri Firat Director Shares withheld for taxes −436 $113.94 $50K 39,895
2026-11-02 Atay Oguzhan Chairman and CEO Option exercise 10b5-1 +16,667 $2.80 $47K 16,667
2026-11-02 Atay Oguzhan Chairman and CEO Option exercise 10b5-1 +8,334 $2.80 $23K 25,001
2026-11-02 Atay Oguzhan Chairman and CEO Sale 10b5-1 −1,482 $107.31 $159K 23,519

Page 1 of 32 · 639 trades