Insider · CIK 0001967808
Devin M Krupka
Files at BAND (Bandwidth Inc.). First filing Nov 1, 2024, latest Sep 2, 2026.
Devin M Krupka files SEC Form 4 as officer at BAND (Bandwidth Inc.). Since Nov 1, 2024, Devin M Krupka has reported 0 open-market buys worth $0 and 16 open-market sells worth $1.9M, the latest filed on Sep 2, 2026.
A track record needs three past buys with six months of prices behind them; Devin M Krupka has 0, so none is measured yet.
The newest scored trade: sold $151k of BAND on Sep 1, 2026, filed Sep 2, 2026, scored 26 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 7 sells worth $1.6M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
BAND: Bandwidth 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 |
|---|---|---|---|---|---|
| 26Weak | Bandwidth Inc. | $151k 3,074 shares | -20% | +296% from low-35% from high | |
| 22Weak | Bandwidth Inc. | $60k 1,219 shares | -8% | +278% from low-38% from high | |
| 54Moderate | Bandwidth Inc. | $943k 14,413 shares | -55% | +410% from low-11% from high | |
| 23Weak | Bandwidth Inc. | $70k 1,198 shares | -4% | +407% from low0% from high | |
| 47Moderate | Bandwidth Inc. | $205k 4,444 shares | -14% | +289% from low0% from high | |
| 44Moderate | Bandwidth Inc. | $87k 5,613 shares | -16% | +44% from low-10% from high | |
| 6Weak | Bandwidth Inc. | $42k 2,976 shares | -10% | +23% from low-33% from high | |
| 24Weak | Bandwidth Inc. | $129k 7,166 shares | -27% | +60% from low-16% from high | |
| 0Weak | Bandwidth Inc. | $18k 1,189 shares | -4% | +31% from low-31% from high | |
| 0Weak | Bandwidth Inc. | $18k 1,229 shares | -5% | +26% from low-34% from high | |
| 0Weak | Bandwidth Inc. | $8,259 544 shares | -3% | +6% from low-30% from high | |
| 7Weak | Bandwidth Inc. | $59k 3,770 shares | -16% | 0% from low-31% from high | |
| 0Weak | Bandwidth Inc. | $2,851 165 shares | -1% | +4% from low-22% from high | |
| 9Weak | Bandwidth Inc. | $78k 3,658 shares | -25% | - | |
| 0Weak | Bandwidth Inc. | $187 10 shares | -0% | - | |
| 22Weak | Bandwidth Inc. | $49k 2,149 shares | -23% | - |
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 |
|---|---|---|---|---|---|
| May 27, 2026 | BAND Bandwidth Inc. | 20,000 0.07% of outstanding | $1.2M | May 29, 2026 | $292k |
| May 5, 2026 | BAND Bandwidth Inc. | 4,444 0.01% of outstanding | $205k | May 5, 2026 | $87k |
| Mar 4, 2026 | BAND Bandwidth Inc. | 5,613 0.02% of outstanding | $83k | Mar 4, 2026 | none |
| Nov 24, 2025 | BAND Bandwidth Inc. | 3,000 0.01% of outstanding | $42k | Dec 1, 2025 | $129k |
| Sep 17, 2025 | BAND Bandwidth Inc. | 7,166 0.03% of outstanding | $129k | Sep 17, 2025 | $18k |
| May 29, 2025 | BAND Bandwidth Inc. | 3,000 0.01% of outstanding | $44k | May 29, 2025 | $67k |
| Mar 28, 2025 | BAND Bandwidth Inc. | 544 0.00% of outstanding | $8,214 | Mar 24, 2025 | $62k |
| Mar 4, 2025 | BAND Bandwidth Inc. | 3,770 0.01% of outstanding | $57k | Mar 3, 2025 | $2,851 |
| Jan 8, 2025 | BAND Bandwidth Inc. | 45 0.00% of outstanding | $766 | Jan 3, 2025 | $127k |
| Dec 3, 2024 | BAND Bandwidth Inc. | 3,658 0.01% of outstanding | $77k | Nov 29, 2024 | $57k |
| Oct 31, 2024 | BAND BANDWIDTH INC | 2,149 0.01% of outstanding | $40k | Oct 31, 2024 | none |
Transactions
The newest 50 of 80 rows this insider has filed.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 1, 2026 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock10b5-1 | -3,074 | $48.97 | $151k | 11,958 | 41 d ago |
| Aug 28, 2026 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock | +2,775 | $0.00 | $0 | 14,733 | 42 d ago |
| Aug 28, 2026 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock | +1,518 | $0.00 | $0 | 16,251 | 42 d ago |
| Aug 31, 2026 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock | -713 | $48.82 | $35k | 15,538 | 42 d ago |
| Aug 31, 2026 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock | -506 | $49.60 | $25k | 15,032 | 42 d ago |
| Aug 28, 2026 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative | -2,775 | $0.00 | $0 | 2,775 | 42 d ago |
| Aug 28, 2026 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative | -1,518 | $0.00 | $0 | 7,585 | 42 d ago |
| Jun 12, 2026 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock10b5-1 | -1,800 | $64.01 | $115k | 24,571 | Jun 15, 2026 |
| Jun 12, 2026 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock10b5-1 | -7,263 | $65.22 | $474k | 17,308 | Jun 15, 2026 |
| Jun 12, 2026 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock10b5-1 | -4,894 | $66.18 | $324k | 12,414 | Jun 15, 2026 |
| Jun 12, 2026 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock10b5-1 | -456 | $66.73 | $30k | 11,958 | Jun 15, 2026 |
| May 28, 2026 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock | +2,776 | $0.00 | $0 | 26,052 | Jun 1, 2026 |
| May 28, 2026 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock | +1,517 | $0.00 | $0 | 27,569 | Jun 1, 2026 |
| May 29, 2026 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock | -684 | $58.37 | $40k | 26,885 | Jun 1, 2026 |
| May 29, 2026 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock | -512 | $59.48 | $30k | 26,373 | Jun 1, 2026 |
| May 29, 2026 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock | -2 | $60.00 | $120 | 26,371 | Jun 1, 2026 |
| May 28, 2026 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative | -2,776 | $0.00 | $0 | 5,550 | Jun 1, 2026 |
| May 28, 2026 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative | -1,517 | $0.00 | $0 | 9,103 | Jun 1, 2026 |
| May 5, 2026 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock | -4,444 | $46.04 | $205k | 26,609 | May 5, 2026 |
| May 5, 2026 | BAND Bandwidth Inc. | GGift Class A Common Stock | -3,333 | $0.00 | $0 | 23,276 | May 5, 2026 |
| Mar 21, 2026 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock | +1,842 | $0.00 | $0 | 31,577 | Mar 23, 2026 |
| Mar 21, 2026 | BAND Bandwidth Inc. | FTax withholding Class A Common Stock | -524 | $15.46 | $8,101 | 31,053 | Mar 23, 2026 |
| Mar 21, 2026 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative | -1,842 | $0.00 | $0 | 0 | Mar 23, 2026 |
| Mar 4, 2026 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock | -5,613 | $15.53 | $87k | 29,735 | Mar 4, 2026 |
| Feb 28, 2026 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock | +2,775 | $0.00 | $0 | 35,049 | Mar 2, 2026 |
| Feb 28, 2026 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock | +1,517 | $0.00 | $0 | 36,566 | Mar 2, 2026 |
| Feb 28, 2026 | BAND Bandwidth Inc. | FTax withholding Class A Common Stock | -1,218 | $14.82 | $18k | 35,348 | Mar 2, 2026 |
| Feb 28, 2026 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative | -2,775 | $0.00 | $0 | 8,326 | Mar 2, 2026 |
| Feb 28, 2026 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative | -1,517 | $0.00 | $0 | 10,620 | Mar 2, 2026 |
| Feb 20, 2026 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock | +8,472 | $0.00 | $0 | 35,133 | Feb 23, 2026 |
| Feb 20, 2026 | BAND Bandwidth Inc. | FTax withholding Class A Common Stock | -2,859 | $15.12 | $43k | 32,274 | Feb 23, 2026 |
| Jan 3, 2026 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock | +352 | $0.00 | $0 | 26,780 | Jan 6, 2026 |
| Jan 3, 2026 | BAND Bandwidth Inc. | FTax withholding Class A Common Stock | -119 | $14.22 | $1,692 | 26,661 | Jan 6, 2026 |
| Jan 3, 2026 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative | -352 | $0.00 | $0 | 0 | Jan 6, 2026 |
| Nov 28, 2025 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock10b5-1 | +1,369 | $0.00 | $0 | 20,561 | Dec 2, 2025 |
| Nov 28, 2025 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock10b5-1 | +2,775 | $0.00 | $0 | 23,336 | Dec 2, 2025 |
| Nov 28, 2025 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock10b5-1 | +6,068 | $0.00 | $0 | 29,404 | Dec 2, 2025 |
| Dec 1, 2025 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock10b5-1 | -2,976 | $14.06 | $42k | 26,428 | Dec 2, 2025 |
| Nov 28, 2025 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative10b5-1 | -1,369 | $0.00 | $0 | 0 | Dec 2, 2025 |
| Nov 28, 2025 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative10b5-1 | -2,775 | $0.00 | $0 | 11,101 | Dec 2, 2025 |
| Nov 28, 2025 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative10b5-1 | -6,068 | $0.00 | $0 | 12,137 | Dec 2, 2025 |
| Nov 28, 2025 | BAND Bandwidth Inc. | AGrant or award Restricted Stock Unitsderivative10b5-1 | +28,000 | $0.00 | $0 | 28,000 | Dec 2, 2025 |
| Sep 17, 2025 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock10b5-1 | -7,166 | $18.00 | $129k | 19,192 | Sep 18, 2025 |
| Aug 28, 2025 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock10b5-1 | +1,370 | $0.00 | $0 | 24,771 | Sep 2, 2025 |
| Aug 28, 2025 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock10b5-1 | +2,776 | $0.00 | $0 | 27,547 | Sep 2, 2025 |
| Aug 29, 2025 | BAND Bandwidth Inc. | SOpen-market sale Class A Common Stock10b5-1 | -1,189 | $15.09 | $18k | 26,358 | Sep 2, 2025 |
| Aug 28, 2025 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative10b5-1 | -1,370 | $0.00 | $0 | 1,369 | Sep 2, 2025 |
| Aug 28, 2025 | BAND Bandwidth Inc. | MOption exercise Restricted Stock Unitsderivative10b5-1 | -2,776 | $0.00 | $0 | 13,876 | Sep 2, 2025 |
| May 28, 2025 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock10b5-1 | +1,369 | $0.00 | $0 | 21,855 | May 30, 2025 |
| May 28, 2025 | BAND Bandwidth Inc. | MOption exercise Class A Common Stock10b5-1 | +2,775 | $0.00 | $0 | 24,630 | May 30, 2025 |
Questions about Devin M Krupka
Answered from the filings on this page, as of the latest one.
Is Devin M Krupka buying or selling?
In the last 12 months Devin M Krupka reported 0 open-market buys worth $0 and 7 open-market sells worth $1.6M on SEC Form 4; the latest was sold $151k of BAND on Sep 1, 2026. Grants, option exercises and tax withholding are not counted.
How did Devin M Krupka's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Devin M Krupka has 0.
Where does Devin M Krupka file Form 4?
Devin M Krupka has filed Form 4 at BAND (Bandwidth Inc.) as Controller, PAO. 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.