Biogen Idec shares owned by Tower Research Capital
Quarter-by-quarter ownership of Biogen Idec (BIIB) shares owned by Tower Research Capital
from 13F filings
Historical chart of Tower Research Capital investment in Biogen Idec
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Quarterly reported holdings in Biogen Idec by Tower Research Capital
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $487k | 3.5k | 140.08 |
| 2025-06-30 | $366k | 2.9k | 125.59 |
| 2025-03-31 | $2.0M | 8.2k | 245.00 |
| 2024-12-31 | $1.5M | 10k | 152.92 |
| 2024-09-30 | $1.2M | 6.0k | 193.84 |
| 2024-06-30 | $3.6M | 16k | 231.82 |
| 2024-03-31 | $2.5M | 11k | 215.63 |
| 2023-09-30 | $2.6M | 10k | 257.01 |
| 2023-06-30 | $1.0M | 3.5k | 284.85 |
| 2023-03-31 | $902k | 3.2k | 277.88 |
| 2022-12-31 | $1.4M | 5.0k | 283.02 |
| 2022-09-30 | $9.5M | 36k | 266.67 |
| 2022-06-30 | $6.5M | 32k | 203.97 |
| 2022-03-31 | $9.9M | 47k | 210.60 |
| 2021-12-31 | $3.0M | 13k | 238.85 |
| 2021-09-30 | $3.1M | 11k | 280.49 |
| 2021-06-30 | $2.3M | 6.7k | 346.30 |
| 2021-03-31 | $5.6M | 20k | 279.81 |
| 2020-12-31 | $1.7M | 6.8k | 244.84 |
| 2020-09-30 | $2.1M | 7.5k | 283.70 |
| 2020-06-30 | $1.2M | 4.6k | 267.52 |
| 2020-03-31 | $23k | 72 | 319.44 |
| 2019-12-31 | $53k | 179 | 296.09 |
| 2019-09-30 | $548k | 2.3k | 238.10 |
| 2019-06-30 | $1.7M | 7.2k | 232.56 |
| 2019-03-31 | $1.0M | 4.4k | 236.33 |
| 2018-12-31 | $175k | 581 | 301.20 |
| 2018-09-30 | $2.4M | 7.3k | 333.33 |
| 2018-06-30 | $4.2M | 15k | 290.23 |
| 2018-03-31 | $317k | 1.2k | 273.98 |
| 2017-12-31 | $399k | 1.3k | 318.44 |
| 2017-09-30 | $469k | 1.6k | 285.71 |
| 2016-12-31 | $108k | 382 | 282.72 |
| 2016-06-30 | $307k | 1.3k | 242.00 |
| 2016-03-31 | $102k | 390 | 261.54 |
| 2015-09-30 | $27k | 93 | 290.32 |
| 2015-06-30 | $30k | 75 | 400.00 |
| 2015-03-31 | $206k | 489 | 421.27 |
| 2014-12-31 | $12k | 35 | 342.86 |
| 2014-09-30 | $1.5M | 4.6k | 327.43 |
| 2014-06-30 | $125k | 397 | 314.86 |
| 2013-12-31 | $1.2M | 4.1k | 279.55 |
| 2013-09-30 | $1.6M | 6.6k | 240.76 |