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Biogen Idec shares owned by Parnassus Investments

Quarter-by-quarter ownership of Biogen Idec (BIIB) shares owned by Parnassus Investments from 13F filings

Historical chart of Parnassus Investments investment in Biogen Idec

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All positions including Biogen Idec held by Parnassus Investments consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Biogen Idec by Parnassus Investments

Quarter filed Position value Share count Share price at filing
2023-12-31 $93M 361k 258.77
2023-09-30 $93M 361k 257.01
2023-06-30 $87M 306k 284.85
2023-03-31 $85M 306k 278.03
2022-12-31 $85M 306k 276.92
2022-09-30 $93M 348k 267.00
2022-06-30 $92M 452k 203.94
2022-03-31 $95M 452k 210.60
2021-12-31 $109M 452k 239.92
2021-09-30 $128M 452k 282.99
2021-06-30 $157M 452k 346.27
2021-03-31 $88M 314k 279.75
2019-09-30 $134M 574k 232.82
2019-06-30 $216M 925k 233.87
2019-03-31 $149M 630k 236.38
2018-12-31 $105M 350k 300.92
2018-09-30 $19M 55k 353.31
2018-06-30 $16M 55k 290.24