A detailed history of American Century Companies Inc transactions in Biogen Inc. stock. As of the latest transaction made, American Century Companies Inc holds 216,978 shares of BIIB stock, worth $34.9 Million. This represents 0.03% of its overall portfolio holdings.

Number of Shares
216,978
Previous 821,301 73.58%
Holding current value
$34.9 Million
Previous $190 Million 77.91%
% of portfolio
0.03%
Previous 0.12%

Shares

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

Nov 12, 2024

SELL
$189.07 - $236.8 $114 Million - $143 Million
-604,323 Reduced 73.58%
216,978 $42.1 Million
Q2 2024

Aug 07, 2024

SELL
$190.52 - $236.72 $4.03 Million - $5.01 Million
-21,166 Reduced 2.51%
821,301 $190 Million
Q1 2024

May 14, 2024

SELL
$212.02 - $267.71 $31 Million - $39.1 Million
-146,209 Reduced 14.79%
842,467 $182 Million
Q4 2023

Feb 13, 2024

BUY
$222.59 - $267.94 $220 Million - $265 Million
988,676 New
988,676 $256 Million
Q3 2023

Nov 13, 2023

BUY
$253.3 - $285.89 $50.7 Million - $57.3 Million
200,310 Added 28.67%
898,928 $231 Million
Q2 2023

Aug 14, 2023

BUY
$275.25 - $318.06 $89.6 Million - $104 Million
325,430 Added 87.2%
698,618 $199 Million
Q1 2023

May 11, 2023

SELL
$256.56 - $292.34 $2.67 Million - $3.05 Million
-10,426 Reduced 2.72%
373,188 $104 Million
Q4 2022

Feb 13, 2023

BUY
$252.44 - $306.72 $23.2 Million - $28.2 Million
91,793 Added 31.46%
383,614 $106 Million
Q3 2022

Nov 14, 2022

SELL
$194.69 - $268.46 $26.5 Million - $36.6 Million
-136,278 Reduced 31.83%
291,821 $77.9 Million
Q2 2022

Aug 12, 2022

SELL
$187.54 - $223.02 $84.7 Million - $101 Million
-451,703 Reduced 51.34%
428,099 $87.3 Million
Q1 2022

May 11, 2022

BUY
$193.77 - $244.14 $4.66 Million - $5.87 Million
24,030 Added 2.81%
879,802 $185 Million
Q4 2021

Feb 07, 2022

SELL
$223.92 - $287.77 $63.4 Million - $81.5 Million
-283,047 Reduced 24.85%
855,772 $205 Million
Q3 2021

Nov 10, 2021

SELL
$282.99 - $369.05 $29.2 Million - $38.1 Million
-103,224 Reduced 8.31%
1,138,819 $322 Million
Q2 2021

Aug 05, 2021

BUY
$259.0 - $414.71 $66.9 Million - $107 Million
258,217 Added 26.25%
1,242,043 $430 Million
Q1 2021

May 14, 2021

BUY
$242.95 - $284.63 $1.9 Million - $2.22 Million
7,804 Added 0.8%
983,826 $275 Million
Q4 2020

Feb 12, 2021

SELL
$236.26 - $355.63 $21.7 Million - $32.7 Million
-91,986 Reduced 8.61%
976,022 $239 Million
Q3 2020

Nov 13, 2020

BUY
$264.77 - $305.71 $9.36 Million - $10.8 Million
35,366 Added 3.42%
1,068,008 $303 Million
Q2 2020

Aug 13, 2020

SELL
$258.66 - $342.55 $64.5 Million - $85.4 Million
-249,314 Reduced 19.45%
1,032,642 $276 Million
Q1 2020

May 14, 2020

SELL
$268.85 - $341.04 $8.86 Million - $11.2 Million
-32,955 Reduced 2.51%
1,281,956 $406 Million
Q4 2019

Feb 12, 2020

SELL
$220.06 - $304.07 $29.1 Million - $40.2 Million
-132,163 Reduced 9.13%
1,314,911 $390 Million
Q3 2019

Nov 13, 2019

BUY
$217.44 - $243.88 $828,011 - $928,695
3,808 Added 0.26%
1,447,074 $337 Million
Q2 2019

Aug 14, 2019

SELL
$219.29 - $241.72 $43.9 Million - $48.4 Million
-200,148 Reduced 12.18%
1,443,266 $338 Million
Q1 2019

May 14, 2019

SELL
$216.71 - $338.96 $5.43 Million - $8.5 Million
-25,064 Reduced 1.5%
1,643,414 $0
Q4 2018

Feb 13, 2019

BUY
$278.5 - $352.75 $44.7 Million - $56.7 Million
160,607 Added 10.65%
1,668,478 $502 Million
Q3 2018

Nov 02, 2018

BUY
$293.51 - $383.83 $108 Million - $141 Million
366,361 Added 32.09%
1,507,871 $533 Million
Q2 2018

Aug 08, 2018

SELL
$257.52 - $306.91 $7.68 Million - $9.15 Million
-29,819 Reduced 2.55%
1,141,510 $331 Million
Q1 2018

May 03, 2018

BUY
$260.13 - $367.91 $44.2 Million - $62.5 Million
169,942 Added 16.97%
1,171,329 $321 Million
Q4 2017

Feb 02, 2018

BUY
$307.64 - $344.58 $29.4 Million - $32.9 Million
95,432 Added 10.53%
1,001,387 $319 Million
Q3 2017

Nov 01, 2017

BUY
$281.15 - $329.69 $255 Million - $299 Million
905,955
905,955 $284 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 $23.2B
  • 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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