Biogen Idec shares owned by Rafferty Asset Management
Quarter-by-quarter ownership of Biogen Idec (BIIB) shares owned by Rafferty Asset Management
from 13F filings
Historical chart of Rafferty Asset Management investment in Biogen Idec
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Quarterly reported holdings in Biogen Idec by Rafferty Asset Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2024-12-31 | $29M | 190k | 152.92 |
| 2024-09-30 | $31M | 160k | 193.84 |
| 2024-03-31 | $24M | 113k | 215.63 |
| 2023-09-30 | $21M | 83k | 257.01 |
| 2023-06-30 | $19M | 65k | 284.85 |
| 2023-03-31 | $16M | 59k | 278.03 |
| 2022-12-31 | $16M | 56k | 276.92 |
| 2022-09-30 | $19M | 73k | 267.01 |
| 2022-06-30 | $11M | 55k | 203.93 |
| 2022-03-31 | $13M | 63k | 210.60 |
| 2021-12-31 | $11M | 45k | 239.92 |
| 2021-09-30 | $8.3M | 29k | 282.99 |
| 2021-06-30 | $6.7M | 19k | 346.29 |
| 2021-03-31 | $8.1M | 29k | 279.76 |
| 2020-12-31 | $5.3M | 22k | 244.88 |
| 2020-09-30 | $5.9M | 21k | 283.66 |
| 2020-06-30 | $4.8M | 18k | 267.53 |
| 2020-03-31 | $3.5M | 11k | 316.42 |
| 2019-12-31 | $7.7M | 26k | 296.74 |
| 2019-09-30 | $8.5M | 37k | 232.81 |
| 2019-06-30 | $9.4M | 40k | 233.86 |
| 2019-03-31 | $6.8M | 29k | 236.39 |
| 2018-12-31 | $1.7M | 5.6k | 301.00 |
| 2018-09-30 | $2.1M | 6.1k | 353.27 |
| 2018-06-30 | $4.3M | 15k | 290.24 |
| 2018-03-31 | $2.4M | 8.9k | 273.81 |
| 2017-12-31 | $1.4M | 4.5k | 318.62 |
| 2017-09-30 | $1.5M | 4.9k | 313.13 |
| 2017-06-30 | $1.5M | 5.7k | 271.43 |
| 2017-03-31 | $1.1M | 4.2k | 273.47 |
| 2016-12-31 | $997k | 3.5k | 283.56 |
| 2016-09-30 | $755k | 2.4k | 313.02 |
| 2016-06-30 | $0 | 2.5k | 0.00 |
| 2016-03-31 | $809k | 3.1k | 260.46 |
| 2015-12-31 | $2.9M | 9.3k | 308.29 |
| 2015-09-30 | $2.3M | 7.7k | 291.84 |
| 2015-06-30 | $1.0M | 2.5k | 404.10 |
| 2015-03-31 | $1.2M | 2.8k | 422.38 |
| 2014-12-31 | $549k | 1.6k | 339.73 |
| 2014-09-30 | $437k | 1.3k | 331.06 |
| 2014-06-30 | $241k | 763 | 315.86 |
| 2014-03-31 | $392k | 1.3k | 305.53 |
| 2013-12-31 | $404k | 1.4k | 279.78 |