RHUMBLINE ADVISERS

Position in BIIB — Biogen Inc.

CIK 1115418 BOSTON, MA

Position in BIIB

as of Mar 31, 2026 · filed May 12, 2026 Compact

Position Value

$50,496,048

+$2,671,470 QoQ

Shares Held

275,438

+1.4% QoQ

Ownership

0.187%

of shares outstanding

% of Portfolio

0.04%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 67.27357880902417.ToString("F0")% Shared 0.ToString("F0")% None 32.72642119097583.ToString("F0")%

Healthcare · as of Mar 31, 2026

RHUMBLINE ADVISERS holds $4,442,669,348 across 18 Drug Manufacturers - General names. BIIB ranks #9 (1.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LLY	ELI LILLY & Co	1,358,698	$1,249,689,659
2	JNJ	Johnson & Johnson	3,829,150	$935,997,426
3	ABBV	AbbVie Inc.	2,897,983	$630,282,322
4	MRK	Merck & Co., Inc.	3,797,430	$456,792,854
5	AMGN	Amgen Inc	914,016	$321,596,529
6	GILD	Gilead Sciences, Inc.	2,236,312	$311,674,803
7	PFE	Pfizer Inc	8,875,485	$249,223,618
8	BMY	Bristol Myers Squibb Co	3,647,568	$221,224,999

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$50,496,048	275,438	+1.4%	Shares	Sole	2026-05-12
2025-12-31	$47,824,578	271,746	-6.0%	Shares	Sole	2026-02-13
2025-09-30	$40,511,976	289,206	-3.6%	Shares	Sole	2025-11-06
2025-06-30	$37,695,461	300,147	+1.3%	Shares	Sole	2025-08-12
2025-03-31	$40,544,870	296,294	+10.3%	Shares	Sole	2025-05-29
2024-12-31	$41,072,935	268,591	-2.1%	Shares	Sole	2025-05-29
2024-09-30	$53,172,056	274,309	-3.5%	Shares	Sole	2024-11-12
2024-06-30	$65,884,634	284,206	+2.0%	Shares	Sole	2024-08-01
2024-03-31	$60,084,005	278,644	+0.2%	Shares	Sole	2024-05-09
2023-12-31	$71,950,222	278,047	-0.2%	Shares	Sole	2024-02-08
2023-09-30	$71,590,649	278,552	-0.8%	Shares	Sole	2023-11-09
2023-06-30	$79,967,649	280,736	+0.3%	Shares	Sole	2023-08-08
2023-03-31	$77,787,233	279,780	+0.4%	Shares	Sole	2023-05-11
2022-12-31	$77,151,296	278,605	+2.0%	Shares	Sole	2023-02-14
2022-09-30	$72,956,682	273,246	+3.8%	Shares	Sole	2022-11-10
2022-06-30	$53,669,666	263,164	+4.9%	Shares	Sole	2022-08-11
2022-03-31	$52,852,176	250,960	-8.3%	Shares	Sole	2022-05-12
2021-12-31	$65,665,864	273,699	+1.6%	Shares	Sole	2022-02-10
2021-09-30	$76,246,844	269,433	-1.8%	Shares	Sole	2021-11-12
2021-06-30	$94,995,365	274,339	-6.7%	Shares	Sole	2021-08-05
2021-03-31	$82,223,280	293,917	-5.0%	Shares	Sole	2021-05-06
2020-12-31	$75,778,293	309,476	-12.3%	Shares	Sole	2021-02-10
2020-09-30	$100,077,765	352,784	-1.2%	Shares	Sole	2020-11-12
2020-06-30	$95,565,916	357,189	+0.5%	Shares	Sole	2020-08-13
2020-03-31	$112,478,468	355,517	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.