Devin M. Krupka is Controller at Bandwidth Inc. (BAND). They have made 5 open-market trades across 1 company since 2023, most recently 2026-09-01.
CIK 0001967808
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| BAND | 11,958 | $518K |
Shares reported on the most recent Form 4, priced at the 2026-09-02 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| BAND | SELL · 10b5-1 | 2026-09-01 | 2026-09-02 | $48.97 | $151K | +5.5% | +34.8% | — |
| BAND | SELL | 2026-08-31 | 2026-09-01 | $49.15 | $60K | -1.1% | +26.5% | — |
| BAND | SELL · 10b5-1 | 2026-06-12 | 2026-06-15 | $65.45 | $943K | +8.4% | +35.5% | -6.8% |
| BAND | SELL | 2026-05-29 | 2026-06-01 | $58.85 | $70K | -4.6% | -5.3% | -28.0% |
| BAND | SELL | 2026-05-05 | 2026-05-05 | $46.04 | $205K | +13.7% | +54.1% | -8.5% |
| BAND | SELL | 2026-03-04 | 2026-03-04 | $15.53 | $87K | -8.8% | +11.5% | +314.1% |
| BAND | SELL · 10b5-1 | 2025-12-01 | 2025-12-02 | $14.06 | $42K | +7.8% | +0.4% | +6.7% |
| BAND | SELL · 10b5-1 | 2025-09-17 | 2025-09-18 | $18.00 | $129K | -7.9% | -11.4% | -18.8% |
| BAND | SELL · 10b5-1 | 2025-08-29 | 2025-09-02 | $15.09 | $18K | +11.1% | +6.3% | -4.8% |
| BAND | SELL · 10b5-1 | 2025-05-29 | 2025-05-30 | $14.47 | $18K | +4.7% | +13.4% | +7.3% |
| BAND | SELL · 10b5-1 | 2025-03-24 | 2025-03-25 | $15.18 | $8K | -16.8% | -15.1% | -5.3% |
| BAND | SELL · 10b5-1 | 2025-03-03 | 2025-03-04 | $15.70 | $59K | -1.5% | -15.9% | -4.5% |
| BAND | SELL · 10b5-1 | 2025-01-03 | 2025-01-06 | $17.28 | $3K | -10.0% | +3.8% | -30.2% |
| BAND | SELL · 10b5-1 | 2024-11-29 | 2024-12-02 | $21.26 | $155K | -3.3% | -17.5% | -25.4% |
| BAND | SELL · 10b5-1 | 2024-11-04 | 2024-11-05 | $18.73 | $187 | -9.4% | -3.5% | -14.1% |
| BAND | SELL · 10b5-1 | 2024-10-31 | 2024-11-01 | $23.00 | $49K | +5.3% | +15.2% | -1.9% |
| BAND | SELL · 10b5-1 | 2024-08-29 | 2024-08-29 | $17.42 | $7K | -7.4% | -0.5% | +22.9% |
| BAND | SELL · 10b5-1 | 2024-05-29 | 2024-05-30 | $20.40 | $9K | -7.1% | -15.9% | -16.8% |
| BAND | SELL | 2024-05-10 | 2024-05-13 | $21.61 | $54K | -5.4% | -11.4% | -30.2% |
| BAND | SELL · 10b5-1 | 2024-04-15 | 2024-04-16 | $16.96 | $424 | +4.6% | +28.8% | +10.7% |
| BAND | SELL · 10b5-1 | 2024-03-22 | 2024-03-25 | $18.75 | $10K | -6.4% | -1.1% | -16.1% |
| BAND | SELL · 10b5-1 | 2024-03-04 | 2024-03-05 | $19.35 | $34K | +0.5% | -3.8% | +14.6% |
| BAND | SELL · 10b5-1 | 2024-02-29 | 2024-03-01 | $19.95 | $59K | -3.4% | -14.9% | -0.1% |
| BAND | SELL · 10b5-1 | 2024-01-03 | 2024-01-04 | $13.56 | $3K | -5.0% | +1.8% | +29.8% |
| BAND | SELL · 10b5-1 | 2023-11-29 | 2023-11-30 | $11.30 | $18K | +1.1% | +28.9% | +67.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.