Insider · CIK 0002048500
Mike Mensinger
Files at BBNX (Beta Bionics, Inc.). First filing Feb 3, 2025, latest Sep 17, 2026.
In brief
Mike Mensinger files SEC Form 4 as officer at BBNX (Beta Bionics, Inc.). Since Feb 3, 2025, Mike Mensinger has reported 1 open-market buy worth $567k and 10 open-market sells worth $579k, the latest filed on Sep 17, 2026.
A track record needs three past buys with six months of prices behind them; Mike Mensinger has 0, so none is measured yet.
The newest scored trade: sold $58k of BBNX on Sep 16, 2026, filed Sep 17, 2026, scored 17 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 7 sells worth $539k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
BBNX: Beta Bionics, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 17Weak | Beta Bionics, Inc. | $58k 2,650 shares | -1% | +150% from low-31% from high | |
| 39Weak | Beta Bionics, Inc. | $84k 4,375 shares | -2% | +119% from low-39% from high | |
| 37Weak | Beta Bionics, Inc. | $55k 4,378 shares | -2% | +44% from low-60% from high | |
| 30Weak | Beta Bionics, Inc. | $13k 1,064 shares | -1% | +29% from low-61% from high | |
| 11Weak | Beta Bionics, Inc. | $66k 2,200 shares | -3% | +223% from low-2% from high | |
| 16Weak | Beta Bionics, Inc. | $231k 7,800 shares | -9% | +201% from low-9% from high | |
| 35Weak | Beta Bionics, Inc. | $31k 1,063 shares | -1% | +193% from low-10% from high | |
| 30Weak | Beta Bionics, Inc. | $21k 1,089 shares | -1% | +96% from low-20% from high | |
| 30Weak | Beta Bionics, Inc. | $20k 1,115 shares | -1% | +92% from low-22% from high | |
| 52Moderate | Beta Bionics, Inc. | $567k 33,350 shares | +130% | - | |
| 15Weak | BBNXsell Beta Bionics, Inc. | $221 13 shares | -0% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Sep 16, 2026 | BBNX BETA BIONICS, INC. | 5,300 0.01% of outstanding | $102k | Sep 16, 2026 | $84k |
| Sep 3, 2026 | BBNX BETA BIONICS, INC. | 4,375 0.01% of outstanding | $85k | Sep 2, 2026 | $55k |
| Jun 3, 2026 | BBNX BETA BIONICS, INC. | 4,378 0.01% of outstanding | $56k | Jun 2, 2026 | $13k |
| Mar 4, 2026 | BBNX BETA BIONICS, INC. | 1,064 0.00% of outstanding | $13k | Mar 2, 2026 | $328k |
| Jan 2, 2026 | BBNX BETA BIONICS INC | 10,000 0.02% of outstanding | $305k | Jan 2, 2026 | $31k |
| Dec 4, 2025 | BBNX BETA BIONICS, INC. | 1,063 0.00% of outstanding | $31k | Dec 2, 2025 | $21k |
Transactions
Every row this insider has filed, 27 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 16, 2026 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock10b5-1 | -2,650 | $22.00 | $58k | 177,390 | 26 d ago |
| Sep 2, 2026 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock | -4,375 | $19.11 | $84k | 180,040 | 40 d ago |
| Jun 2, 2026 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock | -4,378 | $12.61 | $55k | 184,415 | Jun 3, 2026 |
| Feb 27, 2026 | BBNX Beta Bionics, Inc. | AGrant or award Employee Stock Option (right to buy)derivative | +91,520 | $0.00 | $0 | 91,520 | Mar 13, 2026 |
| Feb 27, 2026 | BBNX Beta Bionics, Inc. | AGrant or award Common Stock | +109,105 | $0.00 | $0 | 189,857 | Mar 3, 2026 |
| Mar 2, 2026 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock | -1,064 | $12.36 | $13k | 188,793 | Mar 3, 2026 |
| Feb 27, 2026 | BBNX Beta Bionics, Inc. | AGrant or award Employee Stock Option (right to buy)derivative | +58,749 | $0.00 | $0 | 58,749 | Mar 3, 2026 |
| Jan 6, 2026 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock10b5-1 | -2,200 | $30.10 | $66k | 80,752 | Jan 7, 2026 |
| Jan 2, 2026 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock10b5-1 | -7,200 | $29.56 | $213k | 83,552 | Jan 5, 2026 |
| Jan 2, 2026 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock10b5-1 | -600 | $30.20 | $18k | 82,952 | Jan 5, 2026 |
| Dec 2, 2025 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock | -1,063 | $29.34 | $31k | 90,752 | Dec 4, 2025 |
| Sep 2, 2025 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock | -1,089 | $18.86 | $21k | 91,815 | Sep 4, 2025 |
| Jun 2, 2025 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock | -306 | $17.03 | $5,211 | 93,713 | Jun 4, 2025 |
| Jun 2, 2025 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock | -708 | $18.15 | $13k | 93,005 | Jun 4, 2025 |
| Jun 2, 2025 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock | -101 | $18.69 | $1,888 | 92,904 | Jun 4, 2025 |
| Feb 27, 2025 | BBNX Beta Bionics, Inc. | AGrant or award Common Stock | +35,000 | $0.00 | $0 | 94,019 | Mar 3, 2025 |
| Feb 27, 2025 | BBNX Beta Bionics, Inc. | AGrant or award Employee Stock Option (right to buy)derivative | +52,000 | $0.00 | $0 | 52,000 | Mar 3, 2025 |
| Jan 31, 2025 | BBNX Beta Bionics, Inc. | CConversion Common Stock | +15,107 | - | - | 15,107 | Feb 3, 2025 |
| Jan 31, 2025 | BBNX Beta Bionics, Inc. | XIn-the-money exercise Common Stock | +10,575 | $0.02 | $212 | 25,682 | Feb 3, 2025 |
| Jan 31, 2025 | BBNX Beta Bionics, Inc. | SOpen-market sale Common Stock | -13 | $17.00 | $221 | 25,669 | Feb 3, 2025 |
| Jan 31, 2025 | BBNX Beta Bionics, Inc. | POpen-market purchase Common Stock | +33,350 | $17.00 | $567k | 59,019 | Feb 3, 2025 |
| Jan 31, 2025 | BBNX Beta Bionics, Inc. | CConversion Series D Preferred Stockderivative | -15,107 | - | - | 0 | Feb 3, 2025 |
| Jan 31, 2025 | BBNX Beta Bionics, Inc. | CConversion Class B Common Stock Warrant (right to buy)derivative | +10,575 | $0.00 | $0 | 10,575 | Feb 3, 2025 |
| Jan 31, 2025 | BBNX Beta Bionics, Inc. | XIn-the-money exercise Class B Common Stock Warrant (right to buy)derivative | -10,575 | $0.00 | $0 | 0 | Feb 3, 2025 |
| Jan 31, 2025 | BBNX Beta Bionics, Inc. | AGrant or award Employee Stock Option (right to buy)derivative | +236,553 | $0.00 | $0 | 236,553 | Feb 3, 2025 |
| Jan 31, 2025 | BBNX Beta Bionics, Inc. | AGrant or award Employee Stock Option (right to buy)derivative | +110,278 | $0.00 | $0 | 110,278 | Feb 3, 2025 |
| Jan 29, 2025 | BBNX Beta Bionics, Inc. | AGrant or award Employee Stock Option (right to buy)derivative | +110,278 | $0.00 | $0 | 110,278 | Jan 31, 2025 |
Questions about Mike Mensinger
Answered from the filings on this page, as of the latest one.
Is Mike Mensinger buying or selling?
In the last 12 months Mike Mensinger reported 0 open-market buys worth $0 and 7 open-market sells worth $539k on SEC Form 4; the latest was sold $58k of BBNX on Sep 16, 2026. Grants, option exercises and tax withholding are not counted.
How did Mike Mensinger's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Mike Mensinger has 0.
Where does Mike Mensinger file Form 4?
Mike Mensinger has filed Form 4 at BBNX (Beta Bionics, Inc.) as Chief Product Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.