Warren Buffett - Berkshire Hathaway Inc
Holding/activity history for Biogen Inc. (BIIB)
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Reported Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2021 Q2 | 0 | 0.00 | Sell 100.00% | 0.07 | SEC | ||
| 2021 Q1 | 643,022 | 0.07 | $279.75 | $179,885,000 | SEC | ||
| 2020 Q4 | 643,022 | 0.06 | $244.86 | $157,450,000 | SEC | ||
| 2020 Q3 | 643,022 | 0.08 | $283.68 | $182,412,000 | SEC | ||
| 2020 Q2 | 643,022 | 0.08 | $267.55 | $172,041,000 | SEC | ||
| 2020 Q1 | 643,022 | 0.12 | Reduce 0.84% | <0.01 | $316.38 | $203,440,000 | SEC |
| 2019 Q4 | 648,447 | 0.08 | Buy | 0.08 | $296.73 | $192,414,000 | SEC |