OBERWEIS ASSET MANAGEMENT INC/

Position in BLLN — BillionToOne, Inc.

CIK 937886 LISLE, IL

Position in BLLN

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

Position Value

$35,877,619

New position

Shares Held

299,030

first reported quarter

Ownership

0.634%

of shares outstanding

% of Portfolio

0.75%

of 13F equity value

Holder Rank

#17

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

OBERWEIS ASSET MANAGEMENT INC/ holds $87,426,936 across 3 Diagnostics & Research names. BLLN ranks #2 (41.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VCYT	Veracyte, Inc.	877,734	$51,549,317
2	BLLN	BillionToOne, Inc. This page	299,030	$35,877,619
3	ADPT	Adaptive Biotechnologies Corp	314,688	$0

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$35,877,619	299,030	—	Shares	Sole	2026-08-14
No filing history on record for this holder in this stock.