Rowan E. Chapman is Director at Natera, Inc. (NTRA). They have made 12 open-market trades across 1 company since 2020, most recently 2026-07-15.
CIK 0001786240
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 |
|---|---|---|
| NTRA | 4,663 | $1.8M |
Shares reported on the most recent Form 4, priced at the 2026-07-17 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 |
|---|---|---|---|---|---|---|---|---|
| NTRA | SELL · 10b5-1 | 2026-07-15 | 2026-07-17 | $274.82 | $37K | -5.9% | +16.6% | +50.1% |
| NTRA | SELL · 10b5-1 | 2026-06-16 | 2026-06-17 | $216.78 | $643K | +16.6% | +16.7% | +50.8% |
| NTRA | SELL · 10b5-1 | 2026-03-13 | 2026-03-17 | $191.38 | $23K | -7.5% | -0.7% | +9.9% |
| NTRA | SELL | 2025-12-05 | 2025-12-09 | $243.13 | $1.2M | -1.5% | +1.7% | -12.9% |
| NTRA | SELL | 2025-08-28 | 2025-09-02 | $166.99 | $918K | -0.8% | -5.7% | +37.9% |
| NTRA | SELL | 2024-12-10 | 2024-12-11 | $170.24 | $602K | -3.1% | +4.7% | -16.3% |
| NTRA | SELL | 2024-09-13 | 2024-09-16 | $127.68 | $668K | -4.3% | -2.1% | +31.9% |
| NTRA | SELL | 2024-05-28 | 2024-05-30 | $109.09 | $1.1M | +1.6% | -2.6% | +7.4% |
| NTRA | SELL | 2023-11-29 | 2023-12-01 | $55.97 | $224K | +3.5% | +6.7% | +49.0% |
| NTRA | SELL | 2023-06-13 | 2023-06-15 | $50.58 | $179K | +0.7% | -3.6% | +8.6% |
| NTRA | SELL | 2021-09-17 | 2021-09-21 | $120.78 | $664K | -9.3% | -9.3% | -25.7% |
| NTRA | SELL | 2021-08-17 | 2021-08-19 | $100.09 | $550K | +13.8% | +15.0% | +8.1% |
| NTRA | SELL | 2021-07-19 | 2021-07-21 | $108.37 | $484K | -4.3% | -7.9% | -3.1% |
| NTRA | SELL | 2021-03-01 | 2021-03-03 | $122.23 | $733K | +3.0% | +0.1% | -13.1% |
| NTRA | SELL | 2020-11-12 | 2020-11-16 | $83.48 | $250K | +8.7% | +18.1% | +47.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.