John Rondoni is CTO at Inspire Medical Systems, Inc. (INSP). They have made 6 open-market trades across 1 company since 2022, most recently 2026-05-15.
CIK 0001932219
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 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| INSP | 27,165 | $1.9M |
Shares reported on the most recent Form 4, priced at the 2026-05-19 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 |
|---|---|---|---|---|---|---|---|---|
| INSP | SELL | 2026-05-15 | 2026-05-19 | $43.28 | $114K | -2.6% | +1.6% | +36.2% |
| INSP | SELL | 2026-05-14 | 2026-05-15 | $43.01 | $30K | +5.7% | +1.0% | +42.8% |
| INSP | SELL · 10b5-1 | 2026-01-09 | 2026-01-12 | $100.00 | $11K | -19.2% | -30.6% | -44.2% |
| INSP | SELL | 2025-05-19 | 2025-05-21 | $149.38 | $518K | -4.7% | -9.9% | -38.0% |
| INSP | SELL · 10b5-1 | 2025-03-03 | 2025-03-05 | $185.60 | $849K | -3.4% | -17.7% | -19.8% |
| INSP | SELL · 10b5-1 | 2025-02-11 | 2025-02-13 | $170.49 | $199K | +4.6% | -11.4% | -17.1% |
| INSP | SELL · 10b5-1 | 2025-01-07 | 2025-01-10 | $215.00 | $12K | -3.1% | -6.5% | -25.3% |
| INSP | SELL · 10b5-1 | 2024-11-01 | 2024-11-05 | $193.47 | $3.4M | -15.2% | -5.9% | -5.8% |
| INSP | SELL · 10b5-1 | 2024-09-09 | 2024-09-11 | $215.00 | $7K | +6.7% | +3.8% | -6.7% |
| INSP | SELL · 10b5-1 | 2024-08-22 | 2024-08-23 | $189.83 | $1.9M | +3.7% | +13.9% | -2.1% |
| INSP | SELL · 10b5-1 | 2024-03-22 | 2024-03-26 | $194.35 | $1.6M | +8.6% | +10.0% | -35.6% |
| INSP | SELL · 10b5-1 | 2024-02-29 | 2024-03-04 | $179.24 | $3.1M | +5.4% | +15.4% | -18.5% |
| INSP | SELL | 2023-02-06 | 2023-02-08 | $256.01 | $2.0M | -2.4% | -15.6% | +6.2% |
| INSP | SELL | 2023-01-03 | 2023-01-09 | $256.00 | $300K | +5.4% | +11.4% | -3.6% |
| INSP | SELL | 2022-12-19 | 2022-12-21 | $251.72 | $341K | -2.0% | -1.2% | -3.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.