BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

LOOMIS SAYLES & CO L P's Holding History (CIK: 0000312348)

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

Q2 2023
Shares 11 Value ($000) $0 Avg Close $297.86 Range $273.39 - $319.76
Q1 2023
Shares 20 Value ($000) $0 Avg Close $276.70 Range $254.80 - $295.90
Q2 2022
Shares 44 Value ($000) $9 Avg Close $204.43 Range $187.16 - $225.50
Q1 2022
Shares 44 Value ($000) $9 Avg Close $217.46 Range $192.67 - $249.00
Q4 2021
Shares 30 Value ($000) $7 Avg Close $257.12 Range $221.72 - $290.76
Q3 2021
Shares 30 Value ($000) $8 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 74 Value ($000) $26 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 40 Value ($000) $11 Avg Close $269.69 Range $238.40 - $296.38
Q4 2018
Shares 4,701 Value ($000) $1,415 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 9,303 Value ($000) $3,287 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 30,412 Value ($000) $8,827 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 49,580 Value ($000) $13,576 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 50,224 Value ($000) $16,000 Avg Close $320.80 Range $301.81 - $348.84
Q3 2017
Shares 57,574 Value ($000) $18,027 Avg Close $296.11 Range $269.50 - $330.00
Q2 2017
Shares 61,508 Value ($000) $16,691 Avg Close $264.42 Range $244.28 - $291.90
Q1 2017
Shares 54,337 Value ($000) $14,857 Avg Close $282.75 Range $260.50 - $301.42
Q4 2016
Shares 40,828 Value ($000) $11,578 Avg Close $296.43 Range $268.00 - $329.83
Q3 2016
Shares 53,404 Value ($000) $16,717 Avg Close $296.18 Range $240.07 - $333.65
Q2 2016
Shares 93,257 Value ($000) $22,552 Avg Close $263.54 Range $223.02 - $292.69
Q1 2016
Shares 102,491 Value ($000) $26,681 Avg Close $264.15 Range $242.07 - $301.02
Q4 2015
Shares 113,151 Value ($000) $34,664 Avg Close $287.35 Range $254.00 - $311.65
Q3 2015
Shares 116,944 Value ($000) $34,125 Avg Close $330.23 Range $265.00 - $412.24
Q2 2015
Shares 102,637 Value ($000) $41,460 Avg Close $401.33 Range $368.88 - $432.88
Q1 2015
Shares 59,347 Value ($000) $25,059 Avg Close $394.14 Range $334.40 - $480.18
Q4 2014
Shares 66,882 Value ($000) $22,703 Avg Close $323.51 Range $290.85 - $361.93
Q3 2014
Shares 89,368 Value ($000) $29,563 Avg Close $329.72 Range $298.31 - $349.00
Q2 2014
Shares 77,954 Value ($000) $24,579 Avg Close $300.97 Range $272.02 - $322.25
Q1 2014
Shares 95,050 Value ($000) $29,073 Avg Close $317.43 Range $270.62 - $358.89
Q4 2013
Shares 91,635 Value ($000) $25,635 Avg Close $258.65 Range $221.07 - $298.82
Q3 2013
Shares 89,107 Value ($000) $21,453 Avg Close $223.81 Range $203.55 - $248.95
Q2 2013
Shares 88,365 Value ($000) $19,016 Avg Close $213.68 Range $191.80 - $242.64