Bruce & Co., Inc.

Position in BBNX — Beta Bionics, Inc.

CIK 1358331 CHICAGO, IL

Position in BBNX

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

Position Value

$10,431,519

+$4,913,505 QoQ

Shares Held

665,700

+20.9% QoQ

Ownership

1.48%

of shares outstanding

% of Portfolio

3.30%

of 13F equity value

Holder Rank

#20

of 133 holders

Holding Since

Mar 2026

2 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

Bruce & Co., Inc. holds $21,215,709 across 3 Medical Devices names. BBNX ranks #1 (49.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BBNX	Beta Bionics, Inc. This page	665,700	$10,431,519
2	ABT	Abbott Laboratories	112,300	$10,190,102
3	MASS	908 Devices Inc.	68,286	$594,088

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$10,431,519	665,700	+20.9%	Shares	Sole	2026-08-14
2026-03-31	$5,518,014	550,700	—	Shares	Sole	2026-05-14
No filing history on record for this holder in this stock.