BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Capital World Investors's Holding History (CIK: 0001422849)

Note: Option positions (PUT/CALL) are excluded.

Q1 2024
Shares 34,200 Value ($000) $7,375 Avg Close $234.20 Range $211.02 - $268.30
Q4 2023
Shares 34,200 Value ($000) $8,850 Avg Close $245.62 Range $220.86 - $269.43
Q2 2021
Shares 330,992 Value ($000) $114,613 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 330,992 Value ($000) $92,595 Avg Close $269.69 Range $238.40 - $296.38
Q3 2020
Shares 317,974 Value ($000) $90,203 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 17,500 Value ($000) $4,682 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 718,408 Value ($000) $227,290 Avg Close $303.47 Range $262.25 - $374.99
Q4 2019
Shares 1,828,246 Value ($000) $542,495 Avg Close $277.46 Range $219.70 - $318.00
Q3 2019
Shares 3,251,471 Value ($000) $757,007 Avg Close $232.85 Range $215.78 - $246.99
Q2 2019
Shares 4,074,927 Value ($000) $953,003 Avg Close $230.90 Range $219.20 - $245.35
Q1 2019
Shares 4,901,860 Value ($000) $1,158,702 Avg Close $314.89 Range $216.12 - $344.00
Q4 2018
Shares 4,015,567 Value ($000) $1,208,364 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 2,473,708 Value ($000) $873,986 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 410,110 Value ($000) $119,030 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 209,627 Value ($000) $57,400 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 99,400 Value ($000) $31,666 Avg Close $320.80 Range $301.81 - $348.84
Q1 2016
Shares 600,000 Value ($000) $156,192 Avg Close $264.15 Range $242.07 - $301.02
Q4 2015
Shares 910,000 Value ($000) $278,779 Avg Close $287.35 Range $254.00 - $311.65
Q3 2015
Shares 1,201,651 Value ($000) $350,654 Avg Close $330.23 Range $265.00 - $412.24
Q2 2015
Shares 1,577,679 Value ($000) $637,288 Avg Close $401.33 Range $368.88 - $432.88
Q1 2015
Shares 1,523,700 Value ($000) $643,367 Avg Close $394.14 Range $334.40 - $480.18
Q4 2014
Shares 1,710,500 Value ($000) $580,629 Avg Close $323.51 Range $290.85 - $361.93
Q3 2014
Shares 780,500 Value ($000) $258,197 Avg Close $329.72 Range $298.31 - $349.00
Q2 2014
Shares 410,500 Value ($000) $129,435 Avg Close $300.97 Range $272.02 - $322.25
Q1 2014
Shares 52,500 Value ($000) $16,058 Avg Close $317.43 Range $270.62 - $358.89
Q4 2013
Shares 52,500 Value ($000) $14,687 Avg Close $258.65 Range $221.07 - $298.82
Q3 2013
Shares 52,500 Value ($000) $12,640 Avg Close $223.81 Range $203.55 - $248.95
Q2 2013
Shares 52,500 Value ($000) $11,298 Avg Close $213.68 Range $191.80 - $242.64