Alfred Sandrock is VP at BIOGEN INC. (BIIB). They have made 20 open-market trades across 2 companies since 2013, most recently 2026-04-02.
CIK 0001577061
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 20 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| BIIB | 10,169 | $2.4M |
| VYGR | 472,549 | $893K |
| Total | $3.3M |
Shares reported on the most recent Form 4, priced at the 2026-04-03 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 |
|---|---|---|---|---|---|---|---|---|
| VYGR | SELL | 2026-04-02 | 2026-04-03 | $3.87 | $45K | +2.0% | -2.0% | -4.9% |
| VYGR | SELL | 2026-02-24 | 2026-02-26 | $3.79 | $54K | +19.6% | -7.4% | -5.5% |
| VYGR | SELL | 2026-02-18 | 2026-02-20 | $3.41 | $40K | +18.3% | +11.2% | +5.3% |
| VYGR | SELL | 2026-02-10 | 2026-02-11 | $3.78 | $46K | +4.4% | +23.1% | +14.6% |
| VYGR | SELL | 2025-04-02 | 2025-04-04 | $3.43 | $37K | +6.1% | +18.3% | +8.5% |
| VYGR | SELL | 2025-02-20 | 2025-02-24 | $4.24 | $50K | +0.2% | -11.9% | -31.7% |
| VYGR | SELL | 2025-02-11 | 2025-02-12 | $4.45 | $148K | -7.0% | -12.0% | -26.0% |
| VYGR | SELL | 2024-04-02 | 2024-04-03 | $9.86 | $239K | -12.3% | -6.3% | -19.3% |
| VYGR | SELL | 2024-02-21 | 2024-02-22 | $7.46 | $194K | +18.2% | +20.3% | +7.8% |
| VYGR | SELL | 2023-04-03 | 2023-04-05 | $7.83 | $116K | +2.0% | +5.1% | +44.1% |
| BIIB | SELL | 2021-06-07 | 2021-06-09 | $440.00 | $3.4M | -6.4% | -12.0% | -19.6% |
| BIIB | SELL | 2020-11-04 | 2020-11-06 | $350.00 | $525K | +4.4% | +5.6% | +15.8% |
| BIIB | SELL | 2018-02-27 | 2018-02-28 | $290.83 | $151K | -2.8% | -7.4% | -0.4% |
| BIIB | SELL | 2018-02-23 | 2018-02-27 | $293.44 | $533K | -1.8% | -6.0% | -1.4% |
| BIIB | SELL | 2018-02-20 | 2018-02-21 | $292.00 | $217K | -0.3% | -9.6% | -2.8% |
| BIIB | SELL | 2018-02-15 | 2018-02-20 | $298.85 | $773K | -0.2% | -5.4% | -3.4% |
| BIIB | SELL | 2017-04-03 | 2017-04-04 | $274.08 | $1.1M | -0.2% | -2.2% | -0.8% |
| BIIB | SELL | 2017-03-01 | 2017-03-03 | $290.07 | $564K | -1.5% | -8.2% | -15.0% |
| BIIB | SELL · 10b5-1 | 2016-02-25 | 2016-02-26 | $261.90 | $48K | -2.7% | -4.2% | +7.4% |
| BIIB | SELL | 2016-02-17 | 2016-02-19 | $256.16 | $370K | +3.2% | -3.5% | -2.5% |
| BIIB | SELL | 2016-02-09 | 2016-02-10 | $246.54 | $420K | +5.1% | +5.5% | +10.9% |
| BIIB | SELL · 10b5-1 | 2015-12-04 | 2015-12-07 | $277.00 | $122K | -11.0% | -2.2% | -10.3% |
| BIIB | SELL · 10b5-1 | 2015-03-27 | 2015-03-30 | $430.12 | $185K | -11.0% | -1.9% | -1.9% |
| BIIB | SELL · 10b5-1 | 2015-03-02 | 2015-03-03 | $409.49 | $1.3M | -11.0% | -1.9% | -1.9% |
| BIIB | SELL · 10b5-1 | 2015-02-17 | 2015-02-18 | $389.11 | $163K | -11.0% | -1.9% | -1.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.