David Altshuler is CSO & VP at VERTEX PHARMACEUTICALS INC / MA (VRTX). They have made 53 open-market trades across 1 company since 2004, most recently 2026-01-22.
CIK 0001550395
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 53 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| VRTX | 31,149 | $15.6M |
Shares reported on the most recent Form 4, priced at the 2026-01-26 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| VRTX | SELL · 10b5-1 | 2025-05-15 | 2025-05-19 | $424.69 | $22K | +0.0% | +1.4% | -11.8% |
| VRTX | SELL · 10b5-1 | 2025-03-13 | 2025-03-17 | $510.00 | $1.6M | -2.1% | -5.3% | -12.1% |
| VRTX | SELL · 10b5-1 | 2025-03-10 | 2025-03-12 | $500.00 | $1.6M | +3.6% | -1.9% | -8.6% |
| VRTX | SELL · 10b5-1 | 2025-03-03 | 2025-03-05 | $490.00 | $1.6M | +4.8% | -3.2% | -8.9% |
| VRTX | SELL · 10b5-1 | 2025-02-27 | 2025-02-28 | $480.00 | $611K | +3.7% | +1.5% | -6.4% |
| VRTX | SELL · 10b5-1 | 2025-02-25 | 2025-02-26 | $480.95 | $816K | +5.2% | +3.6% | -6.2% |
| VRTX | SELL · 10b5-1 | 2025-02-20 | 2025-02-24 | $480.00 | $533K | +1.0% | +4.0% | -7.3% |
| VRTX | SELL · 10b5-1 | 2024-11-15 | 2024-11-19 | $478.56 | $7K | +3.9% | -11.6% | +3.0% |
| VRTX | SELL · 10b5-1 | 2024-05-15 | 2024-05-17 | $430.93 | $23K | -0.4% | +6.5% | +6.1% |
| VRTX | SELL · 10b5-1 | 2024-02-26 | 2024-02-27 | $425.70 | $3.6M | -3.7% | -2.7% | +4.0% |
| VRTX | SELL · 10b5-1 | 2024-02-21 | 2024-02-23 | $421.77 | $2.5M | -3.3% | -2.3% | +5.9% |
| VRTX | SELL · 10b5-1 | 2024-02-20 | 2024-02-21 | $420.79 | $3.4M | +1.0% | -1.0% | +5.3% |
| VRTX | SELL · 10b5-1 | 2024-02-12 | 2024-02-13 | $420.24 | $2.6M | +3.6% | -2.3% | +2.8% |
| VRTX | SELL · 10b5-1 | 2023-11-15 | 2023-11-17 | $369.92 | $7K | +1.4% | +15.7% | +21.9% |
| VRTX | SELL · 10b5-1 | 2023-08-09 | 2023-08-11 | $345.51 | $22K | +0.5% | -0.4% | +5.7% |
| VRTX | SELL | 2023-02-27 | 2023-02-28 | $287.46 | $2.4M | -0.6% | +8.0% | +12.5% |
| VRTX | SELL | 2023-02-21 | 2023-02-22 | $293.66 | $2.1M | -0.8% | +7.0% | +13.5% |
| VRTX | SELL | 2023-02-14 | 2023-02-16 | $298.70 | $3.8M | -0.0% | +2.6% | +17.2% |
| VRTX | SELL | 2023-02-13 | 2023-02-14 | $298.83 | $2.7M | -3.9% | +0.5% | +16.6% |
| VRTX | SELL | 2023-02-06 | 2023-02-08 | $305.80 | $505K | -0.2% | -2.0% | +17.6% |
| VRTX | SELL · 10b5-1 | 2022-11-15 | 2022-11-17 | $308.61 | $10K | +1.5% | -6.4% | -4.1% |
| VRTX | SELL | 2022-11-07 | 2022-11-09 | $302.97 | $680K | +0.3% | -0.9% | -2.1% |
| VRTX | SELL | 2022-08-08 | 2022-08-10 | $292.38 | $720K | -0.5% | -1.1% | +3.8% |
| VRTX | SELL | 2022-07-19 | 2022-07-21 | $288.65 | $10.3M | -3.8% | +3.3% | +2.6% |
| VRTX | SELL | 2022-02-25 | 2022-02-28 | $230.98 | $3.5M | +5.6% | +11.9% | +17.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.