Norbert W. Bischofberger is EVP & R&D and CSO at GILEAD SCIENCES INC (GILD). They have made 24 open-market trades across 2 companies since 2006, most recently 2026-05-27.
CIK 0001190273
6 open-market purchases totalling $15.9M since 2020, against 18 sales. Across 6 scored buys the stock is down 15.7% at ninety days, and 19.7 points behind the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 17% | 50% | 17% |
| Avg Move | -5.6% | +1.4% | -15.7% |
| Alpha | -5.6% | +0.0% | -19.7% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| KRON | BUY | 2024-06-27 | 2024-07-01 | $1.20 | $1.5M | +18.2% | +7.4% | -17.4% |
| KRON | BUY | 2024-06-10 | 2024-06-12 | $1.04 | $6.2M | -27.9% | +9.2% | -25.4% |
| KRON | BUY | 2023-11-15 | 2023-11-17 | $0.83 | $2.7M | -7.0% | +14.1% | -15.6% |
| KRON | BUY | 2022-05-17 | 2022-05-19 | $3.76 | $3.4M | -9.4% | -6.8% | +19.2% |
| KRON | BUY | 2021-12-06 | 2021-12-08 | $12.09 | $347K | -0.7% | -9.9% | -53.3% |
| KRON | BUY | 2020-10-14 | 2020-10-16 | $19.00 | $1.8M | -7.0% | -5.8% | -1.4% |
| GILD | SELL · 10b5-1 | 2015-12-15 | 2015-12-17 | $102.41 | $7.2M | -7.2% | -9.9% | -9.5% |
| GILD | SELL · 10b5-1 | 2015-11-16 | 2015-11-18 | $102.65 | $7.2M | -7.2% | -1.8% | -8.6% |
| GILD | SELL · 10b5-1 | 2015-10-15 | 2015-10-16 | $100.05 | $7.0M | -7.2% | -1.8% | -6.8% |
| GILD | SELL · 10b5-1 | 2015-09-15 | 2015-09-17 | $110.71 | $7.7M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2015-08-17 | 2015-08-18 | $116.16 | $8.1M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2015-07-07 | 2015-07-17 | $118.26 | $8.3M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2015-06-15 | 2015-06-17 | $117.67 | $8.2M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2015-05-15 | 2015-05-19 | $109.45 | $7.7M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2015-04-15 | 2015-04-17 | $103.84 | $7.3M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2015-03-16 | 2015-03-18 | $100.80 | $7.1M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2015-02-17 | 2015-02-19 | $103.01 | $7.2M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2015-01-15 | 2015-01-20 | $98.47 | $6.9M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2014-06-16 | 2014-06-18 | $80.90 | $7.3M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2014-05-14 | 2014-05-16 | $80.65 | $7.3M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2014-04-14 | 2014-04-16 | $67.03 | $6.0M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2014-03-14 | 2014-03-18 | $75.88 | $6.8M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2014-02-14 | 2014-02-19 | $81.36 | $7.3M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2014-01-14 | 2014-01-16 | $74.24 | $6.7M | -7.2% | -1.8% | -1.8% |
| GILD | SELL · 10b5-1 | 2013-12-16 | 2013-12-18 | $71.75 | $6.5M | -7.2% | -1.8% | -1.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.