BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

BANK OF AMERICA CORP /DE/'s Holding History (CIK: 0000070858)

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

Q4 2025

Shares 1,128,845 Value ($000) $198,665 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 1,220,018 Value ($000) $170,900 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 1,063,391 Value ($000) $133,551 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 729,856 Value ($000) $99,873 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 416,222 Value ($000) $63,649 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 658,151 Value ($000) $127,576 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 488,346 Value ($000) $113,208 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 443,622 Value ($000) $95,658 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 426,574 Value ($000) $110,385 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 354,093 Value ($000) $91,005 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 326,179 Value ($000) $92,912 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 485,910 Value ($000) $135,098 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 496,337 Value ($000) $137,446 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 568,801 Value ($000) $151,871 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 704,864 Value ($000) $143,751 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 688,584 Value ($000) $145,016 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 910,901 Value ($000) $218,544 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 742,849 Value ($000) $210,217 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 692,251 Value ($000) $239,705 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 817,766 Value ($000) $228,770 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 676,727 Value ($000) $165,702 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 917,283 Value ($000) $260,215 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 927,969 Value ($000) $248,278 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 1,093,050 Value ($000) $345,819 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 1,016,536 Value ($000) $301,637 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 1,339,207 Value ($000) $311,794 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 1,419,187 Value ($000) $331,906 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 1,941,407 Value ($000) $458,909 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 1,926,156 Value ($000) $579,619 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 2,022,076 Value ($000) $714,420 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 1,976,625 Value ($000) $573,695 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 1,842,828 Value ($000) $504,604 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 1,938,390 Value ($000) $617,511 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 2,424,301 Value ($000) $759,098 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 2,004,466 Value ($000) $543,932 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 2,173,458 Value ($000) $594,267 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 1,976,987 Value ($000) $560,634 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 1,839,934 Value ($000) $575,954 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 1,786,580 Value ($000) $432,030 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 1,925,188 Value ($000) $501,165 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 1,586,943 Value ($000) $486,159 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 1,422,979 Value ($000) $415,241 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 575,726 Value ($000) $232,559 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 673,873 Value ($000) $284,537 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 640,672 Value ($000) $217,476 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 766,559 Value ($000) $253,586 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 799,656 Value ($000) $252,138 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 990,753 Value ($000) $303,041 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 1,104,691 Value ($000) $308,840 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 786,601 Value ($000) $189,382 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 575,773 Value ($000) $123,907 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,128,845	$198,665	$163.37	$138.00 - $185.17
Q3 2025	1,220,018	$170,900	$135.17	$121.05 - $150.28
Q2 2025	1,063,391	$133,551	$124.60	$110.04 - $137.32
Q1 2025	729,856	$99,873	$142.96	$128.51 - $157.09
Q4 2024	416,222	$63,649	$168.67	$145.07 - $195.00
Q3 2024	658,151	$127,576	$209.21	$188.78 - $238.00
Q2 2024	488,346	$113,208	$217.32	$189.44 - $237.54
Q1 2024	443,622	$95,658	$234.20	$211.02 - $268.30
Q4 2023	426,574	$110,385	$245.62	$220.86 - $269.43
Q3 2023	354,093	$91,005	$267.47	$251.85 - $287.60
Q2 2023	326,179	$92,912	$297.86	$273.39 - $319.76
Q1 2023	485,910	$135,098	$276.70	$254.80 - $295.90
Q4 2022	496,337	$137,446	$282.44	$250.31 - $311.88
Q3 2022	568,801	$151,871	$212.38	$193.65 - $283.44
Q2 2022	704,864	$143,751	$204.43	$187.16 - $225.50
Q1 2022	688,584	$145,016	$217.46	$192.67 - $249.00
Q4 2021	910,901	$218,544	$257.12	$221.72 - $290.76
Q3 2021	742,849	$210,217	$327.75	$282.64 - $372.12
Q2 2021	692,251	$239,705	$302.94	$257.03 - $468.55
Q1 2021	817,766	$228,770	$269.69	$238.40 - $296.38
Q4 2020	676,727	$165,702	$259.08	$223.25 - $363.92
Q3 2020	917,283	$260,215	$278.91	$261.87 - $312.00
Q2 2020	927,969	$248,278	$300.59	$257.60 - $350.24
Q1 2020	1,093,050	$345,819	$303.47	$262.25 - $374.99
Q4 2019	1,016,536	$301,637	$277.46	$219.70 - $318.00
Q3 2019	1,339,207	$311,794	$232.85	$215.78 - $246.99
Q2 2019	1,419,187	$331,906	$230.90	$219.20 - $245.35
Q1 2019	1,941,407	$458,909	$314.89	$216.12 - $344.00
Q4 2018	1,926,156	$579,619	$319.14	$278.46 - $358.41
Q3 2018	2,022,076	$714,420	$344.30	$288.13 - $388.67
Q2 2018	1,976,625	$573,695	$281.15	$249.17 - $310.91
Q1 2018	1,842,828	$504,604	$310.41	$259.76 - $370.57
Q4 2017	1,938,390	$617,511	$320.80	$301.81 - $348.84
Q3 2017	2,424,301	$759,098	$296.11	$269.50 - $330.00
Q2 2017	2,004,466	$543,932	$264.42	$244.28 - $291.90
Q1 2017	2,173,458	$594,267	$282.75	$260.50 - $301.42
Q4 2016	1,976,987	$560,634	$296.43	$268.00 - $329.83
Q3 2016	1,839,934	$575,954	$296.18	$240.07 - $333.65
Q2 2016	1,786,580	$432,030	$263.54	$223.02 - $292.69
Q1 2016	1,925,188	$501,165	$264.15	$242.07 - $301.02
Q4 2015	1,586,943	$486,159	$287.35	$254.00 - $311.65
Q3 2015	1,422,979	$415,241	$330.23	$265.00 - $412.24
Q2 2015	575,726	$232,559	$401.33	$368.88 - $432.88
Q1 2015	673,873	$284,537	$394.14	$334.40 - $480.18
Q4 2014	640,672	$217,476	$323.51	$290.85 - $361.93
Q3 2014	766,559	$253,586	$329.72	$298.31 - $349.00
Q2 2014	799,656	$252,138	$300.97	$272.02 - $322.25
Q1 2014	990,753	$303,041	$317.43	$270.62 - $358.89
Q4 2013	1,104,691	$308,840	$258.65	$221.07 - $298.82
Q3 2013	786,601	$189,382	$223.81	$203.55 - $248.95
Q2 2013	575,773	$123,907	$213.68	$191.80 - $242.64