BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

SUSQUEHANNA INTERNATIONAL GROUP, LLP's Holding History (CIK: 0001446194)

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

Q4 2025

Shares 661,684 Value ($000) $116,450 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 441,082 Value ($000) $61,787 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 594,099 Value ($000) $74,613 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 268,372 Value ($000) $36,724 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 485,048 Value ($000) $74,174 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 261,147 Value ($000) $50,621 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 118,223 Value ($000) $27,406 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 243,414 Value ($000) $52,487 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 78,590 Value ($000) $20,337 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 112,077 Value ($000) $28,805 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 38,781 Value ($000) $11,047 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 90,118 Value ($000) $25,056 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 216,737 Value ($000) $60,019 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 166,237 Value ($000) $44,386 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 102,735 Value ($000) $20,951 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 270,362 Value ($000) $56,938 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 411,169 Value ($000) $98,648 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 391,066 Value ($000) $110,668 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 377,310 Value ($000) $130,651 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 260,642 Value ($000) $72,914 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 677,896 Value ($000) $165,990 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 391,856 Value ($000) $111,162 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 398,400 Value ($000) $106,592 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 158,265 Value ($000) $50,072 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 220,786 Value ($000) $65,513 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 377,696 Value ($000) $87,935 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 318,339 Value ($000) $74,450 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 615,898 Value ($000) $145,586 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 1,800 Value ($000) $542 Avg Close $319.14 Range $278.46 - $358.41

Q2 2018

Shares 8,256 Value ($000) $2,396 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 16,907 Value ($000) $4,630 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 12,665 Value ($000) $4,034 Avg Close $320.80 Range $301.81 - $348.84

Q2 2017

Shares 80,641 Value ($000) $21,883 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 228,273 Value ($000) $62,415 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 242,696 Value ($000) $68,824 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 396,042 Value ($000) $123,973 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 443,576 Value ($000) $107,266 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 381,194 Value ($000) $99,232 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 470,645 Value ($000) $144,182 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 900,295 Value ($000) $262,715 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 706,291 Value ($000) $285,299 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 525,652 Value ($000) $221,951 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 275,327 Value ($000) $93,460 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 276,219 Value ($000) $91,376 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 498,797 Value ($000) $157,276 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 466,343 Value ($000) $142,641 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 107,431 Value ($000) $30,054 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 224,613 Value ($000) $54,077 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 270,963 Value ($000) $58,312 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	661,684	$116,450	$163.37	$138.00 - $185.17
Q3 2025	441,082	$61,787	$135.17	$121.05 - $150.28
Q2 2025	594,099	$74,613	$124.60	$110.04 - $137.32
Q1 2025	268,372	$36,724	$142.96	$128.51 - $157.09
Q4 2024	485,048	$74,174	$168.67	$145.07 - $195.00
Q3 2024	261,147	$50,621	$209.21	$188.78 - $238.00
Q2 2024	118,223	$27,406	$217.32	$189.44 - $237.54
Q1 2024	243,414	$52,487	$234.20	$211.02 - $268.30
Q4 2023	78,590	$20,337	$245.62	$220.86 - $269.43
Q3 2023	112,077	$28,805	$267.47	$251.85 - $287.60
Q2 2023	38,781	$11,047	$297.86	$273.39 - $319.76
Q1 2023	90,118	$25,056	$276.70	$254.80 - $295.90
Q4 2022	216,737	$60,019	$282.44	$250.31 - $311.88
Q3 2022	166,237	$44,386	$212.38	$193.65 - $283.44
Q2 2022	102,735	$20,951	$204.43	$187.16 - $225.50
Q1 2022	270,362	$56,938	$217.46	$192.67 - $249.00
Q4 2021	411,169	$98,648	$257.12	$221.72 - $290.76
Q3 2021	391,066	$110,668	$327.75	$282.64 - $372.12
Q2 2021	377,310	$130,651	$302.94	$257.03 - $468.55
Q1 2021	260,642	$72,914	$269.69	$238.40 - $296.38
Q4 2020	677,896	$165,990	$259.08	$223.25 - $363.92
Q3 2020	391,856	$111,162	$278.91	$261.87 - $312.00
Q2 2020	398,400	$106,592	$300.59	$257.60 - $350.24
Q1 2020	158,265	$50,072	$303.47	$262.25 - $374.99
Q4 2019	220,786	$65,513	$277.46	$219.70 - $318.00
Q3 2019	377,696	$87,935	$232.85	$215.78 - $246.99
Q2 2019	318,339	$74,450	$230.90	$219.20 - $245.35
Q1 2019	615,898	$145,586	$314.89	$216.12 - $344.00
Q4 2018	1,800	$542	$319.14	$278.46 - $358.41
Q2 2018	8,256	$2,396	$281.15	$249.17 - $310.91
Q1 2018	16,907	$4,630	$310.41	$259.76 - $370.57
Q4 2017	12,665	$4,034	$320.80	$301.81 - $348.84
Q2 2017	80,641	$21,883	$264.42	$244.28 - $291.90
Q1 2017	228,273	$62,415	$282.75	$260.50 - $301.42
Q4 2016	242,696	$68,824	$296.43	$268.00 - $329.83
Q3 2016	396,042	$123,973	$296.18	$240.07 - $333.65
Q2 2016	443,576	$107,266	$263.54	$223.02 - $292.69
Q1 2016	381,194	$99,232	$264.15	$242.07 - $301.02
Q4 2015	470,645	$144,182	$287.35	$254.00 - $311.65
Q3 2015	900,295	$262,715	$330.23	$265.00 - $412.24
Q2 2015	706,291	$285,299	$401.33	$368.88 - $432.88
Q1 2015	525,652	$221,951	$394.14	$334.40 - $480.18
Q4 2014	275,327	$93,460	$323.51	$290.85 - $361.93
Q3 2014	276,219	$91,376	$329.72	$298.31 - $349.00
Q2 2014	498,797	$157,276	$300.97	$272.02 - $322.25
Q1 2014	466,343	$142,641	$317.43	$270.62 - $358.89
Q4 2013	107,431	$30,054	$258.65	$221.07 - $298.82
Q3 2013	224,613	$54,077	$223.81	$203.55 - $248.95
Q2 2013	270,963	$58,312	$213.68	$191.80 - $242.64