MORGAN STANLEY

Position in BIIB — Biogen Inc.

CIK 895421 NEW YORK, NY

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Position in BIIB

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

Position Value

$397,998,422

-$11,180,608 QoQ

Shares Held

2,170,940

-6.6% QoQ

Ownership

1.47%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 78.69181092061504.ToString("F0")% Shared 0.ToString("F0")% None 21.308189079384967.ToString("F0")%

Common Shares in BIIB Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Mar 31, 2026

MORGAN STANLEY holds $57,054,147,722 across 20 Drug Manufacturers - General names. BIIB ranks #14 (0.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LLY	ELI LILLY & Co	15,437,458	$14,198,910,733
2	JNJ	Johnson & Johnson	44,721,167	$10,931,642,052
3	ABBV	AbbVie Inc.	38,016,774	$8,268,268,167
4	MRK	Merck & Co., Inc.	47,632,487	$5,729,711,852
5	AMGN	Amgen Inc	15,836,058	$5,571,916,998
6	GILD	Gilead Sciences, Inc.	23,299,295	$3,247,222,731
7	PFE	Pfizer Inc	92,685,370	$2,602,605,180
8	BMY	Bristol Myers Squibb Co	29,198,554	$1,770,892,290

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	$397,998,422	2,170,940	-6.6%	Shares	Defined	2026-05-15
2025-12-31	$409,179,030	2,325,013	+3.3%	Shares	Defined	2026-05-27
2025-09-30	$315,395,014	2,251,535	+15.1%	Shares	Defined	2026-05-27
2025-06-30	$245,680,404	1,956,210	-1.7%	Shares	Defined	2025-08-15
2025-03-31	$272,403,001	1,990,668	+11.7%	Shares	Defined	2025-05-15
2024-12-31	$272,557,868	1,782,356	-5.6%	Shares	Defined	2025-05-15
2024-09-30	$365,823,752	1,887,246	+17.5%	Shares	Defined	2025-05-14
2024-06-30	$372,420,675	1,606,508	-5.6%	Shares	Defined	2025-05-14
2024-03-31	$366,869,207	1,701,383	+7.8%	Shares	Defined	2024-10-17
2023-12-31	$408,281,344	1,577,777	+5.7%	Shares	Defined	2024-08-16
2023-09-30	$383,744,963	1,493,113	+4.3%	Shares	Defined	2023-11-15
2023-06-30	$407,705,512	1,431,299	+9.6%	Shares	Defined	2023-08-14
2023-03-31	$363,065,746	1,305,851	-8.2%	Shares	Defined	2023-05-15
2022-12-31	$394,006,200	1,422,816	+14.5%	Shares	Defined	2023-02-14
2022-09-30	$331,828,668	1,242,804	-9.7%	Shares	Defined	2022-11-14
2022-06-30	$280,812,119	1,376,935	+44.1%	Shares	Defined	2022-10-27
2022-03-31	$201,297,583	955,829	+22.5%	Shares	Defined	2022-10-27
2021-12-31	$187,252,756	780,480	+3.6%	Shares	Defined	2022-02-14
2021-09-30	$213,293,802	753,715	+7.3%	Shares	Defined	2021-11-15
2021-06-30	$243,142,131	702,175	+13.7%	Shares	Defined	2021-08-23
2021-03-31	$172,825,910	617,787	-20.5%	Shares	Defined	2021-05-17
2020-12-31	$190,379,380	777,503	+12.1%	Shares	Defined	2021-02-16
2020-09-30	$196,702,856	693,397	+84.1%	Shares	Defined	2020-11-13
2020-06-30	$100,790,363	376,716	+1.3%	Shares	Defined	2020-08-14
2020-03-31	$117,665,829	371,913	—	Shares	Defined	2020-05-26
No filing history on record for this holder in this stock.