Latest filingSep 03, 2026Most recent Form 4
BBNX
Beta Bionics, Inc.
NasdaqHealthcareSurgical & Medical Instruments & Apparatus
Insider activity for last month from 08/04 to 09/04. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$71.6M5 sells
Net open-market-$71.6M5 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period5transactions
- S · Open-market sells · dominant5 · 100%
Activity by reported role
A joint filing can contribute to multiple roles6transactions
- CCO · dominant1 · 17%
- Chief executive officer1 · 17%
- Chief financial officer1 · 17%
- CMO1 · 17%
- CPO1 · 17%
- PRES1 · 17%
Distinct insiders active
Reporting-owner CIKs by month · peak Sep 2026 (5)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeSaint SeanCommon Stock · Direct
404,070Sep 02, 2026
Feider StephenCommon Stock · Direct
159,378Sep 02, 2026
Mensinger MikeCommon Stock · Direct
180,040Sep 02, 2026
Russell Steven JonCommon Stock · Direct
169,628Sep 02, 2026
Hopman MarkCommon Stock · Direct
124,027Sep 02, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 04 → Sep 04
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Top insiders
By absolute net value across the selected period- SS-$322.4k
- FS-$127.6k
- HM-$101.8k
- MM-$83.6k
- RJ-$80.7k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
No filing-only signal badges matched this period.
BBNX transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| BBNX | Hopman Mark | CCO | sale | 5.32k | -$10.1M | S | — | 0.0% | 09/03 | 09/02 |
| BBNX | Russell Steven Jon | CMO | sale | 4.22k | -$8.06M | S | — | 0.0% | 09/03 | 09/02 |
| BBNX | Mensinger Mike | CPO | sale | 4.37k | -$8.36M | S | — | 0.0% | 09/03 | 09/02 |
| BBNX | Feider Stephen | CFO | sale | 6.67k | -$12.7M | S | — | 0.0% | 09/03 | 09/02 |
| BBNX | Saint Sean | PRESCEO | sale | 16.8k | -$32.2M | S | — | 0.0% | 09/03 | 09/02 |
Beta Bionics, Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Beta Bionics, Inc.?
Hopman Mark, Russell Steven Jon, Mensinger Mike, Feider Stephen, Saint Sean.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Hopman Mark reported a sale on Sep 02, 2026 valued at $10.1M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $716,072.29. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.