Michael Burkes Brophy is CFO at Natera, Inc. (NTRA). They have made 74 open-market trades across 1 company since 2018, most recently 2026-08-04.
CIK 0001697362
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 74 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| NTRA | 51,637 | $20.3M |
Shares reported on the most recent Form 4, priced at the 2026-08-05 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 | 2026-08-03 | 2026-08-05 | $271.74 | $216K | +16.3% | +21.5% | — |
| NTRA | SELL · 10b5-1 | 2026-07-27 | 2026-07-29 | $253.28 | $1.3M | +26.0% | +29.1% | — |
| NTRA | SELL · 10b5-1 | 2026-05-01 | 2026-05-05 | $208.79 | $166K | -10.4% | +6.8% | +30.0% |
| NTRA | SELL · 10b5-1 | 2026-04-27 | 2026-04-29 | $197.84 | $1.0M | +1.3% | +13.5% | +28.1% |
| NTRA | SELL | 2026-03-10 | 2026-03-11 | $204.13 | $160K | +3.3% | -0.4% | +15.0% |
| NTRA | SELL | 2026-02-03 | 2026-02-04 | $227.83 | $1.6M | +3.3% | -3.1% | +1.1% |
| NTRA | SELL | 2026-01-27 | 2026-01-29 | $235.38 | $1.2M | -8.6% | -13.5% | -15.8% |
| NTRA | SELL | 2026-01-20 | 2026-01-22 | $239.49 | $14.6M | -6.5% | -14.1% | -14.7% |
| NTRA | SELL · 10b5-1 | 2025-10-27 | 2025-10-29 | $191.22 | $1.7M | +6.3% | +22.9% | +23.7% |
| NTRA | SELL · 10b5-1 | 2025-10-22 | 2025-10-24 | $190.30 | $826K | +2.7% | +22.5% | +24.7% |
| NTRA | SELL · 10b5-1 | 2025-10-21 | 2025-10-22 | $187.95 | $226K | +5.9% | +23.2% | +25.5% |
| NTRA | SELL · 10b5-1 | 2025-09-30 | 2025-10-01 | $162.05 | $807K | +7.6% | +22.9% | +42.0% |
| NTRA | SELL · 10b5-1 | 2025-07-28 | 2025-07-30 | $138.36 | $1.4M | +11.8% | +19.8% | +35.0% |
| NTRA | SELL · 10b5-1 | 2025-07-22 | 2025-07-24 | $139.94 | $566K | -1.4% | +14.4% | +32.4% |
| NTRA | SELL · 10b5-1 | 2025-07-21 | 2025-07-22 | $139.29 | $168K | -4.7% | +14.6% | +33.5% |
| NTRA | SELL · 10b5-1 | 2025-04-28 | 2025-04-30 | $153.33 | $1.3M | +3.5% | +3.7% | -10.7% |
| NTRA | SELL · 10b5-1 | 2025-04-22 | 2025-04-24 | $149.11 | $570K | +1.1% | +2.2% | -10.4% |
| NTRA | SELL · 10b5-1 | 2025-04-21 | 2025-04-22 | $145.54 | $176K | +3.9% | +1.2% | -6.7% |
| NTRA | SELL · 10b5-1 | 2025-03-31 | 2025-04-01 | $138.41 | $700K | +6.9% | +9.3% | +22.0% |
| NTRA | SELL · 10b5-1 | 2025-03-17 | 2025-03-19 | $146.03 | $231K | -4.4% | -3.8% | +13.3% |
| NTRA | SELL · 10b5-1 | 2025-01-31 | 2025-02-04 | $176.90 | $14.6M | -0.8% | -19.1% | -10.0% |
| NTRA | SELL · 10b5-1 | 2025-01-29 | 2025-01-31 | $169.12 | $2.1M | -0.4% | -17.1% | -12.3% |
| NTRA | SELL · 10b5-1 | 2025-01-27 | 2025-01-29 | $161.87 | $467K | +1.4% | -8.3% | -8.8% |
| NTRA | SELL · 10b5-1 | 2025-01-23 | 2025-01-24 | $171.60 | $450K | +9.3% | -2.2% | -4.6% |
| NTRA | SELL · 10b5-1 | 2025-01-22 | 2025-01-22 | $164.96 | $8.5M | +3.2% | -5.1% | -15.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.