BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

GLENMEDE TRUST CO NA's Holding History (CIK: 0000314949)

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

Q4 2025

Shares 9,919 Value ($000) $1,746 Avg Close $163.37 Range $138.00 - $185.17

Q1 2025

Shares 71,547 Value ($000) $9,790 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 89,023 Value ($000) $13,613 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 77,301 Value ($000) $14,984 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 10,718 Value ($000) $2,485 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 12,429 Value ($000) $2,680 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 13,524 Value ($000) $3,500 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 28,264 Value ($000) $7,264 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 86,592 Value ($000) $24,076 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 86,701 Value ($000) $24,105 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 89,274 Value ($000) $24,722 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 76,667 Value ($000) $20,468 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 109,429 Value ($000) $22,315 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 118,044 Value ($000) $24,858 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 124,617 Value ($000) $29,896 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 146,459 Value ($000) $41,445 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 146,074 Value ($000) $50,580 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 197,252 Value ($000) $55,179 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 394,811 Value ($000) $96,672 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 405,599 Value ($000) $115,059 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 446,283 Value ($000) $119,402 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 533,522 Value ($000) $158,311 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 533,522 Value ($000) $158,311 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 629,087 Value ($000) $146,463 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 635,479 Value ($000) $148,618 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 441,461 Value ($000) $104,351 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 436,179 Value ($000) $131,254 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 408,589 Value ($000) $144,357 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 421,684 Value ($000) $122,390 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 326,936 Value ($000) $104,150 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 326,936 Value ($000) $104,150 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 339,853 Value ($000) $106,413 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 494,448 Value ($000) $135,191 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 494,448 Value ($000) $135,191 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 413,631 Value ($000) $117,295 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 401,674 Value ($000) $125,734 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 310,393 Value ($000) $75,057 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 336,208 Value ($000) $87,521 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 257,664 Value ($000) $78,934 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 28,238 Value ($000) $8,240 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 70,819 Value ($000) $28,605 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 32,891 Value ($000) $13,886 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 34,067 Value ($000) $11,562 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 30,533 Value ($000) $10,099 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 30,384 Value ($000) $9,579 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 30,395 Value ($000) $9,296 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 35,906 Value ($000) $10,036 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 36,139 Value ($000) $8,699 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 36,816 Value ($000) $7,921 Avg Close $213.68 Range $191.80 - $242.64

Q1 2013

Shares 31 Value ($000) $5 Avg Close $161.63 Range $139.72 - $192.92

Q4 2012

Shares 31 Value ($000) $4 Avg Close — Range —

Q3 2012

Shares 31 Value ($000) $4 Avg Close — Range —

Q1 2012

Shares 17,925 Value ($000) $2,258 Avg Close — Range —

Q2 2011

Shares 15,840 Value ($000) $1,693 Avg Close — Range —

Q4 2010

Shares 19,004 Value ($000) $1,274 Avg Close — Range —

Q3 2010

Shares 32,145 Value ($000) $1,803 Avg Close — Range —

Q2 2010

Shares 39,595 Value ($000) $1,878 Avg Close — Range —

Q1 2010

Shares 39,595 Value ($000) $2,272 Avg Close — Range —

Q4 2009

Shares 39,595 Value ($000) $2,118 Avg Close — Range —

Q3 2009

Shares 34,755 Value ($000) $1,755 Avg Close — Range —

Q2 2009

Shares 41,175 Value ($000) $1,859 Avg Close — Range —

Q1 2009

Shares 36,135 Value ($000) $1,894 Avg Close — Range —

Q4 2008

Shares 34,755 Value ($000) $1,655 Avg Close — Range —

Q3 2008

Shares 19,004 Value ($000) $955 Avg Close — Range —

Q2 2008

Shares 23,714 Value ($000) $1,325 Avg Close — Range —

Q1 2008

Shares 23,714 Value ($000) $1,462 Avg Close — Range —

Q4 2007

Shares 4,825 Value ($000) $237 Avg Close — Range —

Q2 2007

Shares 14,965 Value ($000) $800 Avg Close — Range —

Q1 2007

Shares 14,965 Value ($000) $664 Avg Close — Range —

Q4 2006

Shares 4,825 Value ($000) $237 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	9,919	$1,746	$163.37	$138.00 - $185.17
Q1 2025	71,547	$9,790	$142.96	$128.51 - $157.09
Q4 2024	89,023	$13,613	$168.67	$145.07 - $195.00
Q3 2024	77,301	$14,984	$209.21	$188.78 - $238.00
Q2 2024	10,718	$2,485	$217.32	$189.44 - $237.54
Q1 2024	12,429	$2,680	$234.20	$211.02 - $268.30
Q4 2023	13,524	$3,500	$245.62	$220.86 - $269.43
Q3 2023	28,264	$7,264	$267.47	$251.85 - $287.60
Q2 2023	86,592	$24,076	$297.86	$273.39 - $319.76
Q1 2023	86,701	$24,105	$276.70	$254.80 - $295.90
Q4 2022	89,274	$24,722	$282.44	$250.31 - $311.88
Q3 2022	76,667	$20,468	$212.38	$193.65 - $283.44
Q2 2022	109,429	$22,315	$204.43	$187.16 - $225.50
Q1 2022	118,044	$24,858	$217.46	$192.67 - $249.00
Q4 2021	124,617	$29,896	$257.12	$221.72 - $290.76
Q3 2021	146,459	$41,445	$327.75	$282.64 - $372.12
Q2 2021	146,074	$50,580	$302.94	$257.03 - $468.55
Q1 2021	197,252	$55,179	$269.69	$238.40 - $296.38
Q4 2020	394,811	$96,672	$259.08	$223.25 - $363.92
Q3 2020	405,599	$115,059	$278.91	$261.87 - $312.00
Q2 2020	446,283	$119,402	$300.59	$257.60 - $350.24
Q1 2020	533,522	$158,311	$303.47	$262.25 - $374.99
Q4 2019	533,522	$158,311	$277.46	$219.70 - $318.00
Q3 2019	629,087	$146,463	$232.85	$215.78 - $246.99
Q2 2019	635,479	$148,618	$230.90	$219.20 - $245.35
Q1 2019	441,461	$104,351	$314.89	$216.12 - $344.00
Q4 2018	436,179	$131,254	$319.14	$278.46 - $358.41
Q3 2018	408,589	$144,357	$344.30	$288.13 - $388.67
Q2 2018	421,684	$122,390	$281.15	$249.17 - $310.91
Q1 2018	326,936	$104,150	$310.41	$259.76 - $370.57
Q4 2017	326,936	$104,150	$320.80	$301.81 - $348.84
Q3 2017	339,853	$106,413	$296.11	$269.50 - $330.00
Q2 2017	494,448	$135,191	$264.42	$244.28 - $291.90
Q1 2017	494,448	$135,191	$282.75	$260.50 - $301.42
Q4 2016	413,631	$117,295	$296.43	$268.00 - $329.83
Q3 2016	401,674	$125,734	$296.18	$240.07 - $333.65
Q2 2016	310,393	$75,057	$263.54	$223.02 - $292.69
Q1 2016	336,208	$87,521	$264.15	$242.07 - $301.02
Q4 2015	257,664	$78,934	$287.35	$254.00 - $311.65
Q3 2015	28,238	$8,240	$330.23	$265.00 - $412.24
Q2 2015	70,819	$28,605	$401.33	$368.88 - $432.88
Q1 2015	32,891	$13,886	$394.14	$334.40 - $480.18
Q4 2014	34,067	$11,562	$323.51	$290.85 - $361.93
Q3 2014	30,533	$10,099	$329.72	$298.31 - $349.00
Q2 2014	30,384	$9,579	$300.97	$272.02 - $322.25
Q1 2014	30,395	$9,296	$317.43	$270.62 - $358.89
Q4 2013	35,906	$10,036	$258.65	$221.07 - $298.82
Q3 2013	36,139	$8,699	$223.81	$203.55 - $248.95
Q2 2013	36,816	$7,921	$213.68	$191.80 - $242.64
Q1 2013	31	$5	$161.63	$139.72 - $192.92
Q4 2012	31	$4	—	—
Q3 2012	31	$4	—	—
Q1 2012	17,925	$2,258	—	—
Q2 2011	15,840	$1,693	—	—
Q4 2010	19,004	$1,274	—	—
Q3 2010	32,145	$1,803	—	—
Q2 2010	39,595	$1,878	—	—
Q1 2010	39,595	$2,272	—	—
Q4 2009	39,595	$2,118	—	—
Q3 2009	34,755	$1,755	—	—
Q2 2009	41,175	$1,859	—	—
Q1 2009	36,135	$1,894	—	—
Q4 2008	34,755	$1,655	—	—
Q3 2008	19,004	$955	—	—
Q2 2008	23,714	$1,325	—	—
Q1 2008	23,714	$1,462	—	—
Q4 2007	4,825	$237	—	—
Q2 2007	14,965	$800	—	—
Q1 2007	14,965	$664	—	—
Q4 2006	4,825	$237	—	—