STATE STREET CORP

Position in BIIB — Biogen Inc.

CIK 93751 BOSTON, MA

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Position in BIIB

as of Jun 30, 2026 · filed Aug 7, 2026 Compact

Position Value

$1,586,815,291

+$272,720,151 QoQ

Shares Held

7,344,327

+2.5% QoQ

Ownership

4.97%

of shares outstanding

% of Portfolio

0.05%

of 13F equity value

Holder Rank

of 1,036 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 11% Shared 1% None 88%

Common Shares in BIIB Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

STATE STREET CORP holds $148,142,177,604 across 19 Drug Manufacturers - General names. BIIB ranks #9 (1.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LLY	ELI LILLY & Co	36,215,754	$43,438,265,441
2	JNJ	Johnson & Johnson	133,776,025	$33,975,097,069
3	ABBV	AbbVie Inc.	82,596,748	$20,784,645,666
4	MRK	Merck & Co., Inc.	120,413,256	$15,473,103,396
5	AMGN	Amgen Inc	30,560,537	$11,066,581,658
6	GILD	Gilead Sciences, Inc.	61,216,552	$7,734,099,179
7	PFE	Pfizer Inc	307,090,897	$7,394,748,799
8	BMY	Bristol Myers Squibb Co	102,408,940	$5,900,803,122

All Filings in BIIB

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27 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,586,815,291	7,344,327	+2.5%	Shares	Defined	2026-08-07
2026-03-31	$1,314,095,140	7,167,922	+0.1%	Shares	Defined	2026-05-15
2025-12-31	$1,259,915,929	7,159,020	-2.2%	Shares	Defined	2026-02-13
2025-09-30	$1,025,350,439	7,319,749	-2.0%	Shares	Defined	2025-11-14
2025-09-30	$1,025,549,213	7,321,168	—	Shares	Sole	2025-11-10
2025-06-30	$938,007,471	7,468,807	+1.0%	Shares	Defined	2025-08-14
2025-03-31	$1,012,193,164	7,396,910	-0.0%	Shares	Defined	2025-05-15
2024-12-31	$1,131,340,084	7,398,248	+0.7%	Shares	Defined	2025-02-14
2024-09-30	$1,423,747,046	7,344,960	+3.5%	Shares	Defined	2024-11-14
2024-06-30	$1,644,998,892	7,096,018	+5.2%	Shares	Defined	2024-08-14
2024-03-31	$1,454,857,335	6,747,008	-2.9%	Shares	Defined	2024-05-15
2023-12-31	$1,797,329,732	6,945,665	+1.2%	Shares	Defined	2024-02-14
2023-09-30	$1,764,541,734	6,865,654	-0.3%	Shares	Defined	2023-11-14
2023-06-30	$1,961,253,492	6,885,215	+1.9%	Shares	Defined	2023-08-14
2023-03-31	$1,878,648,710	6,757,000	-0.8%	Shares	Defined	2023-05-15
2022-12-31	$1,885,347,236	6,808,274	-1.3%	Shares	Defined	2023-05-15
2022-09-30	$1,841,060,319	6,895,357	+0.3%	Shares	Defined	2022-11-15
2022-06-30	$1,402,471,111	6,876,881	-4.6%	Shares	Defined	2022-08-15
2022-03-31	$1,518,195,603	7,208,906	+2.8%	Shares	Defined	2022-05-16
2021-12-31	$1,682,200,519	7,011,506	+1.6%	Shares	Defined	2022-02-14
2021-09-30	$1,953,631,652	6,903,536	+3.3%	Shares	Defined	2021-11-15
2021-06-30	$2,313,097,450	6,680,040	+0.1%	Shares	Defined	2021-08-16
2021-03-31	$1,866,641,106	6,672,533	-4.6%	Shares	Defined	2021-07-09
2020-12-31	$1,712,064,792	6,992,015	-7.1%	Shares	Defined	2021-02-16
2020-09-30	$2,134,322,081	7,523,696	-4.0%	Shares	Defined	2020-11-10
2020-06-30	$2,096,755,371	7,836,873	-5.1%	Shares	Defined	2020-08-14
2020-03-31	$2,614,008,123	8,262,242	—	Shares	Defined	2020-06-19
No filing history on record for this holder in this stock.