John Alexander Young is CFO at AMBARELLA INC (AMBA). They have made 12 open-market trades across 1 company since 2024, most recently 2026-09-18.
CIK 0002009866
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 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| AMBA | 107,806 | $6.6M |
Shares reported on the most recent Form 4, priced at the 2026-09-21 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 |
|---|---|---|---|---|---|---|---|---|
| AMBA | SELL · 10b5-1 | 2026-09-18 | 2026-09-21 | $67.28 | $128K | +2.0% | — | — |
| AMBA | SELL | 2026-09-17 | 2026-09-18 | $64.83 | $203K | +3.6% | — | — |
| AMBA | SELL · 10b5-1 | 2026-06-17 | 2026-06-18 | $67.54 | $340K | +23.7% | -7.9% | -12.1% |
| AMBA | SELL · 10b5-1 | 2026-05-26 | 2026-05-28 | $96.00 | $38K | -22.6% | -21.0% | -18.0% |
| AMBA | SELL · 10b5-1 | 2026-04-21 | 2026-04-22 | $60.00 | $118K | +15.1% | +42.4% | +16.1% |
| AMBA | SELL | 2026-03-17 | 2026-03-19 | $53.32 | $406K | -7.8% | +6.1% | +18.0% |
| AMBA | SELL | 2025-12-17 | 2025-12-19 | $72.50 | $924K | +2.3% | -10.6% | -24.0% |
| AMBA | SELL | 2025-09-17 | 2025-09-19 | $79.43 | $408K | +2.1% | +1.4% | -15.5% |
| AMBA | SELL | 2025-06-17 | 2025-06-20 | $52.26 | $255K | +28.9% | +35.9% | +61.0% |
| AMBA | SELL | 2025-03-18 | 2025-03-20 | $55.02 | $231K | -5.3% | -22.2% | -0.8% |
| AMBA | SELL | 2025-03-06 | 2025-03-07 | $55.11 | $294K | +6.6% | -19.4% | -0.0% |
| AMBA | SELL | 2024-12-16 | 2024-12-18 | $75.41 | $322K | +4.1% | +15.7% | -23.0% |
| AMBA | SELL | 2024-09-17 | 2024-09-19 | $53.54 | $229K | -1.3% | +4.3% | +27.0% |
| AMBA | SELL | 2024-06-18 | 2024-06-20 | $55.48 | $239K | +0.5% | +4.2% | -3.4% |
| AMBA | SELL | 2024-03-18 | 2024-03-20 | $49.27 | $152K | -5.5% | -20.9% | +6.4% |
| AMBA | SELL | 2024-03-08 | 2024-03-11 | $57.16 | $40K | -9.0% | -14.1% | +3.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.