BillionToOne, Inc.

Derivative exercise · SEC EDGAR

This page reproduces a recorded source event. It is not a live quote, forecast, recommendation or legal conclusion.

Event type

insider.option_exercise

Occurred

2026-07-13

Reported

2026-07-15

Disclosure lag

2 days

Context

links are based on the recorded entity type

Field	Recorded value
Entity	BillionToOne, Inc.
Source	SEC EDGAR ↗
Source identifier	0002087127-26-000004
Event ID	#1694

Recorded payload

JSON payload as stored after parsing

{
  "accession": "0002087127-26-000004",
  "acquired_disposed": "A",
  "code": "M",
  "direct_or_indirect": "D",
  "form": "4",
  "is_derivative": false,
  "issuer_name": "BillionToOne, Inc.",
  "label": "Exercise of derivative",
  "person_name": "Tsao David",
  "price": 2.8,
  "role": "Director, Chief Technology Officer",
  "security": "Class A Common Stock",
  "shares": 10000,
  "shares_owned_after": 21000,
  "source_path": "edgar/data/2070849/0002087127-26-000004.txt",
  "ticker": "BLLN",
  "value": 28000
}

Source: Open recorded SEC filing

Source: SEC EDGAR · as of 2026-07-15T00:00:00Z