GEODE CAPITAL MANAGEMENT, LLC

Position in BIIB — Biogen Inc.

CIK 1214717 BOSTON, MA

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Position in BIIB

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$796,129,223

+$57,076,994 QoQ

Shares Held

4,342,602

+3.4% QoQ

Ownership

2.94%

of shares outstanding

% of Portfolio

0.05%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 99.93365728657612.ToString("F0")% Shared 0.ToString("F0")% None 0.06634271342388734.ToString("F0")%

Common Shares in BIIB Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Mar 31, 2026

GEODE CAPITAL MANAGEMENT, LLC holds $67,874,952,284 across 14 Drug Manufacturers - General names. BIIB ranks #9 (1.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LLY	ELI LILLY & Co	20,191,864	$18,571,870,750
2	JNJ	Johnson & Johnson	59,164,862	$14,462,258,866
3	ABBV	AbbVie Inc.	46,737,581	$10,164,956,491
4	MRK	Merck & Co., Inc.	59,558,154	$7,164,250,343
5	AMGN	Amgen Inc	15,430,524	$5,429,229,869
6	GILD	Gilead Sciences, Inc.	29,726,052	$4,142,919,866
7	PFE	Pfizer Inc	133,561,742	$3,750,413,715
8	BMY	Bristol Myers Squibb Co	55,286,174	$3,353,106,452

All Filings in BIIB

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$796,129,223	4,342,602	+3.4%	Shares	Defined	2026-05-15
2025-12-31	$739,052,229	4,199,399	+3.2%	Shares	Defined	2026-02-09
2025-09-30	$569,954,842	4,068,781	+3.8%	Shares	Defined	2025-11-12
2025-06-30	$492,080,457	3,918,150	+1.9%	Shares	Defined	2025-08-08
2025-03-31	$526,404,868	3,846,864	+4.1%	Shares	Defined	2025-05-13
2024-12-31	$565,112,188	3,695,476	+2.3%	Shares	Defined	2025-02-12
2024-09-30	$700,347,796	3,613,020	+1.3%	Shares	Defined	2024-11-12
2024-06-30	$826,662,005	3,565,965	+4.6%	Shares	Defined	2024-08-09
2024-03-31	$735,228,004	3,409,674	+3.0%	Shares	Defined	2024-05-13
2023-12-31	$856,351,960	3,309,317	+2.2%	Shares	Defined	2024-02-13
2023-09-30	$831,912,327	3,236,887	+1.7%	Shares	Defined	2023-11-13
2023-06-30	$906,870,963	3,183,679	+2.6%	Shares	Defined	2023-08-11
2023-03-31	$862,653,412	3,102,735	-7.2%	Shares	Defined	2023-05-15
2022-12-31	$925,558,023	3,342,330	+1.3%	Shares	Defined	2023-02-13
2022-09-30	$880,959,825	3,299,475	+1.7%	Shares	Defined	2022-11-14
2022-06-30	$661,891,960	3,245,523	+15.6%	Shares	Defined	2022-08-12
2022-03-31	$591,083,438	2,806,664	+2.2%	Shares	Defined	2022-05-13
2021-12-31	$658,659,813	2,745,331	-1.1%	Shares	Defined	2022-02-11
2021-09-30	$785,372,525	2,775,266	-4.1%	Shares	Defined	2021-11-12
2021-06-30	$1,002,018,812	2,893,750	+3.5%	Shares	Defined	2021-08-13
2021-03-31	$782,323,952	2,796,511	+1.3%	Shares	Defined	2021-05-12
2020-12-31	$675,690,679	2,759,498	-4.5%	Shares	Defined	2021-02-12
2020-09-30	$819,828,958	2,889,978	-4.9%	Shares	Defined	2020-11-13
2020-06-30	$813,193,074	3,039,406	-9.9%	Shares	Defined	2020-08-13
2020-03-31	$1,066,926,375	3,372,294	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.