ALLIANCEBERNSTEIN L.P.

Position in BIIB — Biogen Inc.

CIK 1109448 NASHVILLE, TN

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Position in BIIB

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$46,447,498

+$7,417,091 QoQ

Shares Held

214,975

+1.0% QoQ

Ownership

0.146%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#71

of 1,036 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 66% Shared 0% None 34%

Common Shares in BIIB Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

ALLIANCEBERNSTEIN L.P. holds $11,745,589,806 across 15 Drug Manufacturers - General names. BIIB ranks #11 (0.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LLY	ELI LILLY & Co	4,261,385	$5,111,233,436
2	JNJ	Johnson & Johnson	6,867,265	$1,744,079,292
3	MRK	Merck & Co., Inc.	13,131,942	$1,687,454,547
4	ABBV	AbbVie Inc.	4,092,335	$1,029,795,179
5	AZN	Astrazeneca PLC	4,345,439	$823,982,143
6	GILD	Gilead Sciences, Inc.	4,613,383	$582,854,808
7	BMY	Bristol Myers Squibb Co	4,757,720	$274,139,826
8	AMGN	Amgen Inc	587,270	$212,662,212

All Filings in BIIB

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26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$46,447,498	214,975	+1.0%	Shares	Defined	2026-08-14
2026-03-31	$39,030,407	212,897	+15.9%	Shares	Defined	2026-05-15
2025-12-31	$32,337,106	183,744	-22.6%	Shares	Defined	2026-02-17
2025-09-30	$33,237,482	237,275	+2.7%	Shares	Defined	2025-11-14
2025-06-30	$29,024,853	231,108	+0.9%	Shares	Defined	2025-08-14
2025-03-31	$31,343,749	229,054	+26.7%	Shares	Defined	2025-05-15
2024-12-31	$27,636,161	180,723	+0.9%	Shares	Defined	2025-02-12
2024-09-30	$34,722,753	179,131	-36.3%	Shares	Defined	2024-11-14
2024-06-30	$65,208,415	281,289	+39.3%	Shares	Defined	2024-08-14
2024-03-31	$43,533,756	201,891	-12.1%	Shares	Defined	2024-05-14
2023-12-31	$59,468,710	229,813	-8.6%	Shares	Defined	2024-02-14
2023-09-30	$64,639,043	251,504	+4.6%	Shares	Defined	2023-11-14
2023-06-30	$68,477,655	240,399	-18.1%	Shares	Defined	2023-08-15
2023-03-31	$81,608,199	293,523	+20.8%	Shares	Defined	2023-05-15
2022-12-31	$67,285,467	242,978	+4.6%	Shares	Defined	2023-02-15
2022-09-30	$62,045,193	232,379	+0.8%	Shares	Defined	2022-11-15
2022-06-30	$47,024,077	230,578	+18.6%	Shares	Defined	2022-08-15
2022-03-31	$40,959,594	194,490	+0.4%	Shares	Defined	2022-05-13
2021-12-31	$46,474,423	193,708	-18.5%	Shares	Defined	2022-02-14
2021-09-30	$67,248,611	237,636	+3.2%	Shares	Defined	2021-11-10
2021-06-30	$79,766,410	230,359	-10.5%	Shares	Defined	2021-07-30
2021-03-31	$72,000,096	257,373	-7.1%	Shares	Defined	2021-05-06
2020-12-31	$67,820,098	276,975	+2.2%	Shares	Defined	2021-02-08
2020-09-30	$76,882,953	271,020	-3.8%	Shares	Defined	2020-11-12
2020-06-30	$75,371,778	281,711	-11.1%	Shares	Defined	2020-08-13
2020-03-31	$100,226,969	316,793	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.