Weiss Asset Management LP

Position in BLLN — BillionToOne, Inc.

CIK 1357550 BOSTON, MA

Position in BLLN

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$5,165,978

New position

Shares Held

43,057

first reported quarter

Ownership

0.091%

of shares outstanding

% of Portfolio

0.08%

of 13F equity value

Holder Rank

#49

of 156 holders

Holding Since

Jun 2026

1 quarter on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

Weiss Asset Management LP holds $37,387,049 across 4 Diagnostics & Research names. BLLN ranks #3 (13.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GH	Guardant Health, Inc.	109,876	$16,484,696
2	SHC	Sotera Health Co	651,539	$11,564,817
3	BLLN	BillionToOne, Inc. This page	43,057	$5,165,978
4	NEO	Neogenomics Inc	285,919	$4,171,558

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$5,165,978	43,057	—	Shares	Defined	2026-08-14
No filing history on record for this holder in this stock.