StockCIK 1674632

Beta Bionics, Inc. (BBNX): Insider Trades and Fund Holdings

In the past 12 months, Beta Bionics, Inc. insiders reported 0 open-market purchases worth $0 and 14 sales worth $3.03M; 7 of the sales were reported as made under a 10b5-1 trading plan.

0Insider buys, 12 months

$0Bought by insiders, 12 months

$3.03MSold by insiders, 12 months

1Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 16, 2026.

Recent BBNX insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Oct 16	Oct 14	Mark HopmanChief Commercial Officer	Chief Commercial Officer	▼ SELL	775	17.35	$13K	−1.4%	Form 4 ↗
Oct 5	Oct 1	Mark HopmanChief Commercial Officer	Chief Commercial Officer	▼ SELL	370	18.96	$7K	−0.7%	Form 4 ↗
Sep 23	Sep 22	Christy JonesDirector	Director	▼ SELL10b5-1	6,430	23.00	$148K	−25%	Form 4 ↗
Sep 18	Sep 9	Mark HopmanChief Commercial Officer	Chief Commercial Officer	▼ SELL10b5-1	35,994	18.46	$665K	−29%	Form 4 ↗
Sep 17	Sep 16	Mark HopmanChief Commercial Officer	Chief Commercial Officer	▼ SELL10b5-1	30,779	20.13	$620K	−35%	Form 4 ↗
Sep 17	Sep 16	Mike MensingerChief Product Officer	Chief Product Officer	▼ SELL10b5-1	2,650	22.00	$58K	−1.5%	Form 4 ↗
Sep 15	Sep 14	Mark HopmanChief Commercial Officer	Chief Commercial Officer	▼ SELL10b5-1	775	15.52	$12K	−0.9%	Form 4 ↗
Sep 10	Sep 9	Mark HopmanChief Commercial Officer	Chief Commercial Officer	▼ SELL10b5-1	36,870	18.46	$681K	−30%	Form 4 ↗
Sep 4	Sep 3	Sean SaintCEO	CEO	▼ SELL10b5-1	5,641	20.08	$113K	−1.4%	Form 4 ↗
Sep 3	Sep 2	Sean SaintCEO	CEO	▼ SELL	16,867	19.11	$322K	−4.0%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

All 14 BBNX insider trades →

Insiders who traded in the past year

Insider	Role	Bought	Sells	Sold	Latest
Mark Hopman	Chief Commercial Officer	$0	7	$2.10M	Oct 16, 2026
Christy Jones	Director	$0	1	$148K	Sep 23, 2026
Mike Mensinger	Chief Product Officer	$0	2	$142K	Sep 17, 2026
Sean Saint	CEO	$0	2	$436K	Sep 4, 2026
Stephen Feider	CFO	$0	1	$128K	Sep 3, 2026
Steven Jon Russell	Chief Medical Officer	$0	1	$81K	Sep 3, 2026

Tracked funds that report BBNX

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

Fund	Quarter	Shares	Value	% of portfolio	Change
Renaissance Technologies	Q2 2026	11,300	$177K	0.00%	▲ New

Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →