BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Bridgewater Associates, LP's Holding History (CIK: 0001350694)

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

Q3 2025

Shares 39,983 Value ($000) $5,601 Avg Close $135.17 Range $121.05 - $150.28

Q4 2024

Shares 70,033 Value ($000) $10,709 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 72,104 Value ($000) $13,977 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 16,416 Value ($000) $3,806 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 44,952 Value ($000) $9,693 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 143,286 Value ($000) $37,078 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 150,877 Value ($000) $38,777 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 126,419 Value ($000) $36,010 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 147,725 Value ($000) $41,072 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 110,797 Value ($000) $30,682 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 113,623 Value ($000) $30,337 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 267,931 Value ($000) $54,642 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 37,519 Value ($000) $7,902 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 12,404 Value ($000) $2,976 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 12,622 Value ($000) $3,572 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 17,856 Value ($000) $6,183 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 8,397 Value ($000) $2,349 Avg Close $269.69 Range $238.40 - $296.38

Q3 2019

Shares 237,455 Value ($000) $55,284 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 248,933 Value ($000) $58,218 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 240,378 Value ($000) $56,821 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 45,895 Value ($000) $13,811 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 20,432 Value ($000) $7,219 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 22,819 Value ($000) $6,623 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 77,197 Value ($000) $21,138 Avg Close $310.41 Range $259.76 - $370.57

Q3 2017

Shares 44,198 Value ($000) $13,839 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 44,981 Value ($000) $12,206 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 45,447 Value ($000) $12,426 Avg Close $282.75 Range $260.50 - $301.42

Q3 2016

Shares 900 Value ($000) $282 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 51,461 Value ($000) $12,444 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 23,106 Value ($000) $6,015 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 25,106 Value ($000) $7,691 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 14,766 Value ($000) $4,309 Avg Close $330.23 Range $265.00 - $412.24

Q1 2015

Shares 20,446 Value ($000) $8,633 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 15,146 Value ($000) $5,141 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 1,646 Value ($000) $545 Avg Close $329.72 Range $298.31 - $349.00

Q4 2013

Shares 19,057 Value ($000) $5,328 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 6,174 Value ($000) $1,486 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 10,512 Value ($000) $2,262 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	39,983	$5,601	$135.17	$121.05 - $150.28
Q4 2024	70,033	$10,709	$168.67	$145.07 - $195.00
Q3 2024	72,104	$13,977	$209.21	$188.78 - $238.00
Q2 2024	16,416	$3,806	$217.32	$189.44 - $237.54
Q1 2024	44,952	$9,693	$234.20	$211.02 - $268.30
Q4 2023	143,286	$37,078	$245.62	$220.86 - $269.43
Q3 2023	150,877	$38,777	$267.47	$251.85 - $287.60
Q2 2023	126,419	$36,010	$297.86	$273.39 - $319.76
Q1 2023	147,725	$41,072	$276.70	$254.80 - $295.90
Q4 2022	110,797	$30,682	$282.44	$250.31 - $311.88
Q3 2022	113,623	$30,337	$212.38	$193.65 - $283.44
Q2 2022	267,931	$54,642	$204.43	$187.16 - $225.50
Q1 2022	37,519	$7,902	$217.46	$192.67 - $249.00
Q4 2021	12,404	$2,976	$257.12	$221.72 - $290.76
Q3 2021	12,622	$3,572	$327.75	$282.64 - $372.12
Q2 2021	17,856	$6,183	$302.94	$257.03 - $468.55
Q1 2021	8,397	$2,349	$269.69	$238.40 - $296.38
Q3 2019	237,455	$55,284	$232.85	$215.78 - $246.99
Q2 2019	248,933	$58,218	$230.90	$219.20 - $245.35
Q1 2019	240,378	$56,821	$314.89	$216.12 - $344.00
Q4 2018	45,895	$13,811	$319.14	$278.46 - $358.41
Q3 2018	20,432	$7,219	$344.30	$288.13 - $388.67
Q2 2018	22,819	$6,623	$281.15	$249.17 - $310.91
Q1 2018	77,197	$21,138	$310.41	$259.76 - $370.57
Q3 2017	44,198	$13,839	$296.11	$269.50 - $330.00
Q2 2017	44,981	$12,206	$264.42	$244.28 - $291.90
Q1 2017	45,447	$12,426	$282.75	$260.50 - $301.42
Q3 2016	900	$282	$296.18	$240.07 - $333.65
Q2 2016	51,461	$12,444	$263.54	$223.02 - $292.69
Q1 2016	23,106	$6,015	$264.15	$242.07 - $301.02
Q4 2015	25,106	$7,691	$287.35	$254.00 - $311.65
Q3 2015	14,766	$4,309	$330.23	$265.00 - $412.24
Q1 2015	20,446	$8,633	$394.14	$334.40 - $480.18
Q4 2014	15,146	$5,141	$323.51	$290.85 - $361.93
Q3 2014	1,646	$545	$329.72	$298.31 - $349.00
Q4 2013	19,057	$5,328	$258.65	$221.07 - $298.82
Q3 2013	6,174	$1,486	$223.81	$203.55 - $248.95
Q2 2013	10,512	$2,262	$213.68	$191.80 - $242.64