William F. Doyle is Chairman at NovoCure Ltd (NVCR). They have made 35 open-market trades across 3 companies since 2018, most recently 2026-03-03.
CIK 0001194459
10 open-market purchases totalling $722K since 2018, against 25 sales. Across 10 scored buys the stock is down 6.6% at ninety days, and 6.2 points behind the S&P over the same stretch.
10 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| OPTN | 817,225 | $7.8M |
| NVCR | 349,727 | $4.9M |
| ELAN | 94,499 | $2.2M |
| NERV | 26,111 | $61K |
| Total | $15.1M |
Shares reported on the most recent Form 4, priced at the 2026-03-05 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 70% | 40% | 40% |
| Avg Move | +5.8% | -3.4% | -6.6% |
| Alpha | +5.9% | -1.9% | -6.2% |
| Scored | 10 | 10 | 10 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| NVCR | SELL | 2026-03-03 | 2026-03-05 | $12.98 | $933K | -9.5% | -22.8% | +18.5% |
| ELAN | BUY | 2024-05-21 | 2024-05-23 | $16.98 | $255K | +9.9% | +8.1% | -11.5% |
| ELAN | BUY | 2024-03-08 | 2024-03-12 | $16.30 | $245K | -0.2% | -6.9% | +15.1% |
| NVCR | SELL | 2022-08-02 | 2022-08-03 | $69.66 | $117K | +16.0% | +8.2% | +0.7% |
| NVCR | SELL | 2022-03-08 | 2022-03-09 | $70.10 | $334K | +8.0% | +18.3% | +7.9% |
| NVCR | SELL | 2021-08-02 | 2021-08-04 | $149.38 | $297K | -10.7% | -9.0% | -29.3% |
| NVCR | SELL | 2021-04-13 | 2021-04-15 | $199.42 | $29.8M | +8.8% | -10.4% | -5.5% |
| NVCR | SELL | 2021-04-01 | 2021-04-02 | $134.12 | $2.1M | +38.8% | +51.2% | +41.6% |
| NVCR | SELL | 2020-07-31 | 2020-08-03 | $76.39 | $137K | -0.9% | +10.4% | +46.0% |
| NVCR | SELL | 2020-05-11 | 2020-05-12 | $63.73 | $4.0M | +5.1% | +3.6% | +24.8% |
| NVCR | SELL | 2020-05-07 | 2020-05-11 | $64.11 | $8.1M | -2.5% | +4.8% | +20.9% |
| NVCR | SELL | 2020-05-05 | 2020-05-07 | $63.36 | $7.6M | -2.5% | +8.7% | +20.9% |
| NVCR | SELL | 2020-03-06 | 2020-03-10 | $69.53 | $601K | -16.6% | -2.0% | -1.9% |
| NVCR | SELL | 2020-02-28 | 2020-03-02 | $72.22 | $562K | -10.2% | -14.0% | -11.6% |
| NVCR | SELL | 2020-01-17 | 2020-01-22 | $95.00 | $12.7M | -11.3% | -6.6% | -25.2% |
| NVCR | SELL | 2019-11-25 | 2019-11-26 | $96.04 | $3.1M | -11.8% | -5.1% | -9.1% |
| NVCR | SELL | 2019-11-20 | 2019-11-22 | $90.36 | $13.6M | -10.4% | -6.3% | -2.2% |
| NVCR | SELL | 2019-11-11 | 2019-11-13 | $80.55 | $6.8M | +14.7% | -0.9% | +12.1% |
| NERV | BUY | 2019-06-27 | 2019-07-01 | $5.50 | $19K | +13.2% | +15.3% | +34.5% |
| NVCR | SELL | 2019-05-30 | 2019-06-03 | $53.07 | $2.6M | +5.8% | +19.5% | +61.7% |
| NVCR | SELL | 2019-05-29 | 2019-05-31 | $53.10 | $101K | +5.1% | +16.6% | +72.7% |
| NVCR | SELL | 2019-05-09 | 2019-05-10 | $47.37 | $3.0M | +5.5% | +12.7% | +79.7% |
| NVCR | SELL | 2019-05-08 | 2019-05-09 | $47.52 | $1.5M | +1.9% | +10.2% | +67.8% |
| NVCR | SELL | 2019-05-07 | 2019-05-09 | $47.67 | $1.5M | +1.9% | +10.2% | +67.8% |
| NVCR | SELL | 2019-05-07 | 2019-05-09 | $47.57 | $4.6M | +1.9% | +10.2% | +67.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.