Company · Ownership research

BillionToOne, Inc. BLLN

CIK 0002070849

Form 3 statements with an event date from Oct 1, 2023 to Oct 15, 2026.

Insider trading Initial holdings Institutional holders

Some filings are submitted jointly by several insiders. The SEC form does not apportion the reported figures between them, so results include every joint filer.

Where insider ownership starts.

Form 3 is an initial ownership statement filed when someone becomes a reporting insider. These holdings do not mean they bought shares that day.

202514 of 14 statements

Holdings date	Insider	Initial holdings
Nov 5, 2025	Decoster Lukas · Van den Brande Barend · HB&Q NV (HB&Q COMPARTMENT III) · Hummingbird Dragons CommV · Hummingbird Collective CommV · Humming Bird Ventures Management NV · Hummingbird Ventures III CommV · Hummingbird Opportunity Fund II CommV 10% owner / 10% owner / 10% owner / 10% owner / 10% owner / 10% owner / 10% owner / 10% owner	180.00K shares · 10 derivative holdings	▾
Nov 5, 2025	Rai Akshay Director	2 derivative holdings	▾
Nov 5, 2025	Johnson Nancy JoAnn See Remarks	29.00K shares · 6 derivative holdings	▾
Nov 5, 2025	Taylor Ross Chief Financial Officer	2 derivative holdings	▾
Nov 5, 2025	Sakakibara Shan Riku Chief Product Officer	220.00K shares · 3 derivative holdings	▾
Nov 5, 2025	Atay Oguzhan See Remarks · Director	2 stock holdings · 3 derivative holdings	▾
Nov 5, 2025	Ileri Firat Director · 10% owner	180.00K shares · 11 derivative holdings	▾
Nov 5, 2025	ten Bosch John Roderick See Remarks	37.00K shares · 5 derivative holdings	▾
Nov 5, 2025	LISTER JOHN Chief Administrative Officer	1 derivative holding	▾
Nov 5, 2025	KOLLURI KRISHNA KITTU Director · 10% owner	120.00K shares · 7 derivative holdings	▾
Nov 5, 2025	Bremner Thomas S Director	27 derivative holdings	▾
Nov 5, 2025	Tsao David Chief Technology Officer · Director	2.33M shares · 2 derivative holdings	▾
Nov 5, 2025	Lynch Thomas P. See Remarks	600 shares · 4 derivative holdings	▾
Nov 5, 2025	NeoTribe Partners I, LLC · NeoTribe Ventures I, L.P. · NeoTribe Associates I, L.P. · Neotribe Ignite Partners I, LLC · Neotribe Ignite Fund I, L.P. · Neotribe Partners SPV I BTO, LLC · Neotribe SPV I BTO, LLC 10% owner / 10% owner / 10% owner / 10% owner / 10% owner / 10% owner / 10% owner	120.00K shares · 7 derivative holdings	▾

Showing 14 / 14 statements in 2025. The complete set is available through the API.

BillionToOne, Inc. · BLLN

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.