Mark A. Stevens is Director at NVIDIA CORP (NVDA). They have made 65 open-market trades across 5 companies since 2006, most recently 2026-09-18.
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.
5 open-market purchases totalling $889K since 2008, against 60 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| NVDA | 970,531 | $207.8M |
| AOSL | 129,094 | $2.8M |
| QTNA | 20,488 | $502K |
| ASFN | 1,000 | — |
| ATHL | 21,453 | — |
| Total | $211.1M |
Shares reported on the most recent Form 4, priced at the 2026-09-22 close. 2 holdings could not be priced and are excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 100% | 100% | 100% |
| Avg Move | -4.3% | -2.9% | -2.9% |
| Scored | 9 | 9 | 9 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| NVDA | SELL | 2026-09-18 | 2026-09-22 | $219.73 | $300.1M | +2.6% | — | — |
| NVDA | SELL | 2026-06-18 | 2026-06-23 | $210.17 | $186.0M | -2.3% | +4.3% | +13.6% |
| NVDA | SELL | 2026-06-02 | 2026-06-04 | $221.10 | $221.1M | -3.4% | -8.8% | +4.6% |
| NVDA | SELL | 2026-03-20 | 2026-03-24 | $173.68 | $77.0M | +0.3% | +12.7% | +17.8% |
| NVDA | SELL | 2025-12-19 | 2025-12-22 | $180.17 | $40.1M | +2.8% | +0.2% | -4.0% |
| NVDA | SELL | 2025-12-05 | 2025-12-09 | $181.73 | $63.6M | -2.1% | +0.0% | -1.3% |
| NVDA | SELL | 2025-09-19 | 2025-09-23 | $176.39 | $123.5M | +4.4% | +1.3% | +2.2% |
| NVDA | SELL | 2025-09-11 | 2025-09-15 | $178.01 | $141.6M | +0.4% | +1.6% | -0.4% |
| NVDA | SELL | 2025-06-18 | 2025-06-23 | $145.26 | $176.7M | +9.5% | +17.3% | +26.1% |
| NVDA | SELL | 2025-06-06 | 2025-06-10 | $142.09 | $75.0M | -0.3% | +13.5% | +16.4% |
| NVDA | SELL | 2025-06-02 | 2025-06-04 | $140.55 | $298.2M | +1.8% | +11.3% | +20.1% |
| NVDA | SELL | 2024-10-09 | 2024-10-11 | $132.27 | $20.5M | +2.3% | +6.4% | -0.4% |
| NVDA | SELL | 2024-10-03 | 2024-10-07 | $122.61 | $15.3M | +5.1% | +11.8% | +14.7% |
| NVDA | SELL | 2024-09-27 | 2024-10-01 | $121.01 | $4.8M | +15.8% | +14.0% | +18.1% |
| NVDA | SELL | 2024-09-24 | 2024-09-26 | $121.27 | $20.0M | +7.2% | +13.4% | +12.9% |
| NVDA | SELL | 2024-07-12 | 2024-07-15 | $129.81 | $40.5M | -12.6% | -8.1% | +7.5% |
| NVDA | SELL | 2024-07-09 | 2024-07-11 | $131.91 | $154.3M | -4.4% | -15.0% | +3.4% |
| NVDA | SELL | 2024-06-11 | 2024-06-13 | $124.14 | $58.3M | -2.7% | -1.2% | -10.0% |
| NVDA | SELL | 2024-06-05 | 2024-06-07 | $1199.83 | $20.8M | +8.6% | +6.5% | -10.9% |
| NVDA | SELL | 2024-06-03 | 2024-06-05 | $1139.20 | $10.1M | +5.6% | +1.4% | -12.9% |
| NVDA | SELL | 2024-05-29 | 2024-05-31 | $1138.45 | $41.6M | +10.2% | +9.4% | +3.5% |
| NVDA | SELL | 2024-04-05 | 2024-04-09 | $879.97 | $20.0M | -9.2% | +5.7% | +52.7% |
| NVDA | SELL | 2024-03-28 | 2024-04-01 | $905.65 | $10.0M | +2.5% | -6.1% | +40.5% |
| NVDA | SELL | 2024-03-07 | 2024-03-11 | $919.37 | $20.1M | +3.9% | -1.1% | +38.3% |
| NVDA | SELL | 2024-03-04 | 2024-03-06 | $853.54 | $10.2M | -1.9% | -2.4% | +29.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.