BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Allianz Asset Management GmbH's Holding History (CIK: 0001535323)

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

Q4 2025

Shares 247,722 Value ($000) $43,597 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 396,803 Value ($000) $55,584 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 527,060 Value ($000) $66,193 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 667,767 Value ($000) $91,377 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 535,954 Value ($000) $81,958 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 525,513 Value ($000) $101,865 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 528,178 Value ($000) $122,442 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 620,244 Value ($000) $133,743 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 718,719 Value ($000) $185,983 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 772,358 Value ($000) $198,504 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 752,211 Value ($000) $214,267 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 699,269 Value ($000) $194,418 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 581,634 Value ($000) $161,066 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 564,931 Value ($000) $150,837 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 597,685 Value ($000) $121,892 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 530,782 Value ($000) $111,782 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 467,869 Value ($000) $112,252 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 312,024 Value ($000) $88,300 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 202,341 Value ($000) $70,065 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 233,021 Value ($000) $65,188 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 354,554 Value ($000) $86,816 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 306,496 Value ($000) $86,946 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 605,956 Value ($000) $162,123 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 582,654 Value ($000) $184,340 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 633,725 Value ($000) $188,045 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 566,870 Value ($000) $131,943 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 630,074 Value ($000) $147,356 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 678,139 Value ($000) $160,299 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 656,300 Value ($000) $197,208 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 563,884 Value ($000) $199,226 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 700,216 Value ($000) $203,231 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 782,198 Value ($000) $214,181 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 629,737 Value ($000) $200,615 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 562,693 Value ($000) $176,191 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 538,897 Value ($000) $146,283 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 535,227 Value ($000) $146,250 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 718,273 Value ($000) $203,689 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 700,826 Value ($000) $218,447 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 849,872 Value ($000) $205,516 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 858,552 Value ($000) $223,498 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 806,560 Value ($000) $247,306 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 892,671 Value ($000) $260,394 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 1,013,179 Value ($000) $409,425 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 891,872 Value ($000) $376,585 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 829,459 Value ($000) $281,559 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 1,019,233 Value ($000) $337,172 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 1,058,286 Value ($000) $333,689 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 1,005,483 Value ($000) $307,547 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 993,673 Value ($000) $277,803 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 1,033,635 Value ($000) $248,859 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 1,139,160 Value ($000) $245,148 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	247,722	$43,597	$163.37	$138.00 - $185.17
Q3 2025	396,803	$55,584	$135.17	$121.05 - $150.28
Q2 2025	527,060	$66,193	$124.60	$110.04 - $137.32
Q1 2025	667,767	$91,377	$142.96	$128.51 - $157.09
Q4 2024	535,954	$81,958	$168.67	$145.07 - $195.00
Q3 2024	525,513	$101,865	$209.21	$188.78 - $238.00
Q2 2024	528,178	$122,442	$217.32	$189.44 - $237.54
Q1 2024	620,244	$133,743	$234.20	$211.02 - $268.30
Q4 2023	718,719	$185,983	$245.62	$220.86 - $269.43
Q3 2023	772,358	$198,504	$267.47	$251.85 - $287.60
Q2 2023	752,211	$214,267	$297.86	$273.39 - $319.76
Q1 2023	699,269	$194,418	$276.70	$254.80 - $295.90
Q4 2022	581,634	$161,066	$282.44	$250.31 - $311.88
Q3 2022	564,931	$150,837	$212.38	$193.65 - $283.44
Q2 2022	597,685	$121,892	$204.43	$187.16 - $225.50
Q1 2022	530,782	$111,782	$217.46	$192.67 - $249.00
Q4 2021	467,869	$112,252	$257.12	$221.72 - $290.76
Q3 2021	312,024	$88,300	$327.75	$282.64 - $372.12
Q2 2021	202,341	$70,065	$302.94	$257.03 - $468.55
Q1 2021	233,021	$65,188	$269.69	$238.40 - $296.38
Q4 2020	354,554	$86,816	$259.08	$223.25 - $363.92
Q3 2020	306,496	$86,946	$278.91	$261.87 - $312.00
Q2 2020	605,956	$162,123	$300.59	$257.60 - $350.24
Q1 2020	582,654	$184,340	$303.47	$262.25 - $374.99
Q4 2019	633,725	$188,045	$277.46	$219.70 - $318.00
Q3 2019	566,870	$131,943	$232.85	$215.78 - $246.99
Q2 2019	630,074	$147,356	$230.90	$219.20 - $245.35
Q1 2019	678,139	$160,299	$314.89	$216.12 - $344.00
Q4 2018	656,300	$197,208	$319.14	$278.46 - $358.41
Q3 2018	563,884	$199,226	$344.30	$288.13 - $388.67
Q2 2018	700,216	$203,231	$281.15	$249.17 - $310.91
Q1 2018	782,198	$214,181	$310.41	$259.76 - $370.57
Q4 2017	629,737	$200,615	$320.80	$301.81 - $348.84
Q3 2017	562,693	$176,191	$296.11	$269.50 - $330.00
Q2 2017	538,897	$146,283	$264.42	$244.28 - $291.90
Q1 2017	535,227	$146,250	$282.75	$260.50 - $301.42
Q4 2016	718,273	$203,689	$296.43	$268.00 - $329.83
Q3 2016	700,826	$218,447	$296.18	$240.07 - $333.65
Q2 2016	849,872	$205,516	$263.54	$223.02 - $292.69
Q1 2016	858,552	$223,498	$264.15	$242.07 - $301.02
Q4 2015	806,560	$247,306	$287.35	$254.00 - $311.65
Q3 2015	892,671	$260,394	$330.23	$265.00 - $412.24
Q2 2015	1,013,179	$409,425	$401.33	$368.88 - $432.88
Q1 2015	891,872	$376,585	$394.14	$334.40 - $480.18
Q4 2014	829,459	$281,559	$323.51	$290.85 - $361.93
Q3 2014	1,019,233	$337,172	$329.72	$298.31 - $349.00
Q2 2014	1,058,286	$333,689	$300.97	$272.02 - $322.25
Q1 2014	1,005,483	$307,547	$317.43	$270.62 - $358.89
Q4 2013	993,673	$277,803	$258.65	$221.07 - $298.82
Q3 2013	1,033,635	$248,859	$223.81	$203.55 - $248.95
Q2 2013	1,139,160	$245,148	$213.68	$191.80 - $242.64