BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

PANAGORA ASSET MANAGEMENT INC's Holding History (CIK: 0000883677)

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

Q4 2025

Shares 3,203 Value ($000) $564 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 3,231 Value ($000) $453 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 3,132 Value ($000) $393 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 3,319 Value ($000) $454 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 3,319 Value ($000) $508 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 10,146 Value ($000) $1,967 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 9,536 Value ($000) $2,211 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 14,821 Value ($000) $3,196 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 15,360 Value ($000) $3,975 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 125,752 Value ($000) $32,320 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 205,897 Value ($000) $58,650 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 208,551 Value ($000) $57,983 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 99,399 Value ($000) $27,526 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 103,405 Value ($000) $27,609 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 96,171 Value ($000) $19,613 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 192,574 Value ($000) $40,556 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 170,767 Value ($000) $40,970 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 68,240 Value ($000) $19,311 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 70,523 Value ($000) $24,420 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 220,824 Value ($000) $61,776 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 228,847 Value ($000) $56,035 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 201,147 Value ($000) $57,061 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 192,197 Value ($000) $51,422 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 215,806 Value ($000) $68,277 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 301,470 Value ($000) $89,455 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 265,028 Value ($000) $61,704 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 402,923 Value ($000) $94,232 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 467,379 Value ($000) $110,479 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 568,501 Value ($000) $171,073 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 371,292 Value ($000) $131,181 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 382,670 Value ($000) $111,066 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 405,508 Value ($000) $111,036 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 328,518 Value ($000) $104,656 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 328,787 Value ($000) $102,950 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 253,945 Value ($000) $68,910 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 228,975 Value ($000) $62,606 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 104,235 Value ($000) $29,559 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 79,858 Value ($000) $24,998 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 150,787 Value ($000) $36,463 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 167,371 Value ($000) $43,570 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 170,982 Value ($000) $52,380 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 183,138 Value ($000) $53,441 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 147,661 Value ($000) $59,646 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 156,670 Value ($000) $66,152 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 200,705 Value ($000) $68,129 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 175,091 Value ($000) $57,922 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 99,705 Value ($000) $31,438 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 182,361 Value ($000) $55,779 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 309,555 Value ($000) $86,598 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 291,898 Value ($000) $70,277 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 634,570 Value ($000) $136,559 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,203	$564	$163.37	$138.00 - $185.17
Q3 2025	3,231	$453	$135.17	$121.05 - $150.28
Q2 2025	3,132	$393	$124.60	$110.04 - $137.32
Q1 2025	3,319	$454	$142.96	$128.51 - $157.09
Q4 2024	3,319	$508	$168.67	$145.07 - $195.00
Q3 2024	10,146	$1,967	$209.21	$188.78 - $238.00
Q2 2024	9,536	$2,211	$217.32	$189.44 - $237.54
Q1 2024	14,821	$3,196	$234.20	$211.02 - $268.30
Q4 2023	15,360	$3,975	$245.62	$220.86 - $269.43
Q3 2023	125,752	$32,320	$267.47	$251.85 - $287.60
Q2 2023	205,897	$58,650	$297.86	$273.39 - $319.76
Q1 2023	208,551	$57,983	$276.70	$254.80 - $295.90
Q4 2022	99,399	$27,526	$282.44	$250.31 - $311.88
Q3 2022	103,405	$27,609	$212.38	$193.65 - $283.44
Q2 2022	96,171	$19,613	$204.43	$187.16 - $225.50
Q1 2022	192,574	$40,556	$217.46	$192.67 - $249.00
Q4 2021	170,767	$40,970	$257.12	$221.72 - $290.76
Q3 2021	68,240	$19,311	$327.75	$282.64 - $372.12
Q2 2021	70,523	$24,420	$302.94	$257.03 - $468.55
Q1 2021	220,824	$61,776	$269.69	$238.40 - $296.38
Q4 2020	228,847	$56,035	$259.08	$223.25 - $363.92
Q3 2020	201,147	$57,061	$278.91	$261.87 - $312.00
Q2 2020	192,197	$51,422	$300.59	$257.60 - $350.24
Q1 2020	215,806	$68,277	$303.47	$262.25 - $374.99
Q4 2019	301,470	$89,455	$277.46	$219.70 - $318.00
Q3 2019	265,028	$61,704	$232.85	$215.78 - $246.99
Q2 2019	402,923	$94,232	$230.90	$219.20 - $245.35
Q1 2019	467,379	$110,479	$314.89	$216.12 - $344.00
Q4 2018	568,501	$171,073	$319.14	$278.46 - $358.41
Q3 2018	371,292	$131,181	$344.30	$288.13 - $388.67
Q2 2018	382,670	$111,066	$281.15	$249.17 - $310.91
Q1 2018	405,508	$111,036	$310.41	$259.76 - $370.57
Q4 2017	328,518	$104,656	$320.80	$301.81 - $348.84
Q3 2017	328,787	$102,950	$296.11	$269.50 - $330.00
Q2 2017	253,945	$68,910	$264.42	$244.28 - $291.90
Q1 2017	228,975	$62,606	$282.75	$260.50 - $301.42
Q4 2016	104,235	$29,559	$296.43	$268.00 - $329.83
Q3 2016	79,858	$24,998	$296.18	$240.07 - $333.65
Q2 2016	150,787	$36,463	$263.54	$223.02 - $292.69
Q1 2016	167,371	$43,570	$264.15	$242.07 - $301.02
Q4 2015	170,982	$52,380	$287.35	$254.00 - $311.65
Q3 2015	183,138	$53,441	$330.23	$265.00 - $412.24
Q2 2015	147,661	$59,646	$401.33	$368.88 - $432.88
Q1 2015	156,670	$66,152	$394.14	$334.40 - $480.18
Q4 2014	200,705	$68,129	$323.51	$290.85 - $361.93
Q3 2014	175,091	$57,922	$329.72	$298.31 - $349.00
Q2 2014	99,705	$31,438	$300.97	$272.02 - $322.25
Q1 2014	182,361	$55,779	$317.43	$270.62 - $358.89
Q4 2013	309,555	$86,598	$258.65	$221.07 - $298.82
Q3 2013	291,898	$70,277	$223.81	$203.55 - $248.95
Q2 2013	634,570	$136,559	$213.68	$191.80 - $242.64