A detailed history of Parnassus Investments, LLC transactions in Biogen Inc. stock. As of the latest transaction made, Parnassus Investments, LLC holds 361,512 shares of BIIB stock, worth $54.5 Million. This represents 0.15% of its overall portfolio holdings.

Number of Shares
361,512
Previous 360,742 0.21%
Holding current value
$54.5 Million
Previous $83.6 Million 16.21%
% of portfolio
0.15%
Previous 0.19%

Shares

12 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2024

Nov 08, 2024

BUY
$189.07 - $236.8 $145,583 - $182,336
770 Added 0.21%
361,512 $70.1 Million
Q3 2023

Nov 08, 2023

BUY
$253.3 - $285.89 $13.9 Million - $15.7 Million
54,934 Added 17.96%
360,742 $92.7 Million
Q4 2022

Jan 30, 2023

SELL
$252.44 - $306.72 $10.6 Million - $12.9 Million
-41,943 Reduced 12.06%
305,808 $84.7 Million
Q3 2022

Nov 14, 2022

SELL
$194.69 - $268.46 $20.3 Million - $28 Million
-104,302 Reduced 23.07%
347,751 $92.9 Million
Q2 2021

Aug 05, 2021

BUY
$259.0 - $414.71 $35.6 Million - $57.1 Million
137,641 Added 43.78%
452,053 $157 Million
Q1 2021

May 06, 2021

BUY
$242.95 - $284.63 $76.4 Million - $89.5 Million
314,412 New
314,412 $88 Million
Q4 2019

Feb 13, 2020

SELL
$220.06 - $304.07 $126 Million - $175 Million
-574,416 Closed
0 $0
Q3 2019

Oct 30, 2019

SELL
$217.44 - $243.88 $76.2 Million - $85.5 Million
-350,584 Reduced 37.9%
574,416 $134 Million
Q2 2019

Aug 08, 2019

BUY
$219.29 - $241.72 $64.7 Million - $71.3 Million
295,000 Added 46.83%
925,000 $216 Million
Q1 2019

May 01, 2019

BUY
$216.71 - $338.96 $60.7 Million - $94.9 Million
280,000 Added 80.0%
630,000 $149 Million
Q4 2018

Feb 05, 2019

BUY
$278.5 - $352.75 $82.2 Million - $104 Million
295,000 Added 536.36%
350,000 $105 Million
Q2 2018

Aug 06, 2018

BUY
$257.52 - $306.91 $14.2 Million - $16.9 Million
55,000 New
55,000 $16 Million

Others Institutions Holding BIIB

About BIOGEN INC.


  • Ticker BIIB
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Drug Manufacturers—General
  • Shares Outstandng 144,000,992
  • Market Cap $21.7B
  • Description
  • Biogen Inc. discovers, develops, manufactures, and delivers therapies for treating neurological and neurodegenerative diseases. The company offers TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, TYSABRI, and FAMPYRA for multiple sclerosis (MS); SPINRAZA for spinal muscular atrophy; and FUMADERM to treat plaque psoriasis. It also provides BENEPALI, an eta...
More about BIIB
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