Ourania Tatsis is VP at VERTEX PHARMACEUTICALS INC / MA (VRTX). They have made 13 open-market trades across 1 company since 2019, most recently 2026-07-21.
CIK 0001789815
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 13 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| VRTX | 53,572 | $29.4M |
Shares reported on the most recent Form 4, priced at the 2026-07-23 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 |
|---|---|---|---|---|---|---|---|---|
| VRTX | SELL · 10b5-1 | 2026-07-02 | 2026-07-07 | $524.99 | $787K | -7.3% | -7.6% | -3.9% |
| VRTX | SELL · 10b5-1 | 2026-02-25 | 2026-02-26 | $486.35 | $126K | +3.9% | -7.7% | -9.0% |
| VRTX | SELL | 2026-02-17 | 2026-02-19 | $483.52 | $472K | +1.6% | -3.4% | -7.9% |
| VRTX | SELL · 10b5-1 | 2026-02-13 | 2026-02-18 | $499.99 | $750K | +3.4% | -3.4% | -7.6% |
| VRTX | SELL · 10b5-1 | 2026-02-11 | 2026-02-12 | $460.43 | $215K | +2.4% | -1.2% | -3.9% |
| VRTX | SELL · 10b5-1 | 2026-01-07 | 2026-01-09 | $474.99 | $2.1M | +1.4% | +2.1% | -3.1% |
| VRTX | SELL · 10b5-1 | 2025-12-03 | 2025-12-05 | $449.99 | $2.0M | -1.3% | -1.5% | +1.1% |
| VRTX | SELL · 10b5-1 | 2025-03-10 | 2025-03-12 | $499.99 | $3.2M | +3.6% | -1.9% | -8.6% |
| VRTX | SELL · 10b5-1 | 2025-03-04 | 2025-03-06 | $485.49 | $3.9M | +5.5% | -2.3% | -8.2% |
| VRTX | SELL · 10b5-1 | 2025-02-27 | 2025-02-28 | $475.34 | $504K | +3.7% | +1.5% | -6.4% |
| VRTX | SELL · 10b5-1 | 2025-02-25 | 2025-02-26 | $480.95 | $341K | +5.2% | +3.6% | -6.2% |
| VRTX | SELL · 10b5-1 | 2025-02-18 | 2025-02-19 | $455.06 | $222K | +2.0% | +6.2% | -5.7% |
| VRTX | SELL · 10b5-1 | 2025-02-11 | 2025-02-12 | $459.83 | $285K | +5.7% | +11.1% | -4.9% |
| VRTX | SELL · 10b5-1 | 2024-06-03 | 2024-06-05 | $460.00 | $1.0M | -2.2% | -2.0% | -1.8% |
| VRTX | SELL · 10b5-1 | 2024-05-30 | 2024-06-03 | $441.02 | $3.1M | +1.4% | -0.5% | +0.7% |
| VRTX | SELL · 10b5-1 | 2024-02-26 | 2024-02-27 | $425.70 | $301K | -3.7% | -2.7% | +4.0% |
| VRTX | SELL · 10b5-1 | 2024-02-21 | 2024-02-23 | $421.77 | $304K | -3.3% | -2.3% | +5.9% |
| VRTX | SELL · 10b5-1 | 2024-02-20 | 2024-02-21 | $420.79 | $404K | +1.0% | -1.0% | +5.3% |
| VRTX | SELL · 10b5-1 | 2024-02-12 | 2024-02-13 | $420.24 | $264K | +3.6% | -2.3% | +2.8% |
| VRTX | SELL · 10b5-1 | 2023-08-23 | 2023-08-25 | $355.00 | $888K | -2.4% | -0.5% | +0.2% |
| VRTX | SELL · 10b5-1 | 2023-08-10 | 2023-08-14 | $345.79 | $4.0M | -0.7% | -0.7% | +8.5% |
| VRTX | SELL | 2023-02-27 | 2023-02-28 | $287.36 | $183K | -0.6% | +8.0% | +12.5% |
| VRTX | SELL | 2023-02-21 | 2023-02-22 | $293.78 | $202K | -0.8% | +7.0% | +13.5% |
| VRTX | SELL · 10b5-1 | 2023-02-14 | 2023-02-16 | $298.52 | $96K | -0.0% | +2.6% | +17.2% |
| VRTX | SELL · 10b5-1 | 2023-02-13 | 2023-02-14 | $298.99 | $82K | -3.9% | +0.5% | +16.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.