PRIMECAP MANAGEMENT CO/CA/

Position in ALKS — Alkermes plc.

CIK 763212 PASADENA, CA

Back to ALKS Full portfolio

Position in ALKS

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

Position Value

$132,502,832

+$42,688,786 QoQ

Shares Held

2,528,680

-0.4% QoQ

Ownership

1.51%

of shares outstanding

% of Portfolio

0.08%

of 13F equity value

Holder Rank

#15

of 423 holders

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 97% Shared 0% None 3%

Common Shares in ALKS Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Jun 30, 2026

PRIMECAP MANAGEMENT CO/CA/ holds $1,333,715,020 across 3 Drug Manufacturers - Specialty & Generic names. ALKS ranks #2 (9.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ELAN	Elanco Animal Health Inc	45,445,012	$1,118,401,745
2	ALKS	Alkermes plc. This page	2,528,680	$132,502,832
3	NBIX	Neurocrine Biosciences Inc	491,340	$82,810,443

All Filings in ALKS

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$132,502,832	2,528,680	-0.4%	Shares	Sole	2026-08-14
2026-03-31	$89,814,046	2,539,990	-0.9%	Shares	Sole	2026-05-11
2025-12-31	$71,749,114	2,564,300	-7.1%	Shares	Sole	2026-02-11
2025-09-30	$82,772,400	2,759,080	-4.9%	Shares	Sole	2025-11-12
2025-06-30	$83,040,811	2,902,510	-3.4%	Shares	Sole	2025-08-11
2025-03-31	$99,195,216	3,004,095	-3.0%	Shares	Sole	2025-05-09
2024-12-31	$89,026,867	3,095,510	-6.1%	Shares	Sole	2025-02-10
2024-09-30	$92,286,248	3,297,115	-2.6%	Shares	Sole	2024-11-08
2024-06-30	$81,597,659	3,385,795	-2.5%	Shares	Sole	2024-08-09
2024-03-31	$94,019,253	3,473,190	-2.6%	Shares	Sole	2024-05-14
2023-12-31	$98,910,437	3,565,625	-8.2%	Shares	Sole	2024-02-09
2023-09-30	$108,741,262	3,882,230	-5.9%	Shares	Sole	2023-11-13
2023-06-30	$129,151,312	4,126,240	-1.7%	Shares	Sole	2023-08-11
2023-03-31	$118,349,795	4,198,290	-12.6%	Shares	Sole	2023-05-15
2022-12-31	$125,511,012	4,803,330	-10.2%	Shares	Sole	2023-02-13
2022-09-30	$119,415,257	5,347,750	-0.8%	Shares	Sole	2022-11-14
2022-06-30	$160,515,222	5,388,225	-4.9%	Shares	Sole	2022-08-11
2022-03-31	$149,122,185	5,667,890	-6.7%	Shares	Sole	2022-05-11
2021-12-31	$141,308,686	6,075,180	-5.2%	Shares	Sole	2022-02-11
2021-09-30	$197,674,222	6,409,670	-2.3%	Shares	Sole	2021-11-12
2021-06-30	$160,812,458	6,558,420	-1.7%	Shares	Sole	2021-08-10
2021-03-31	$124,604,753	6,670,490	-6.4%	Shares	Sole	2021-05-14
2020-12-31	$142,158,912	7,125,760	-14.3%	Shares	Sole	2021-02-08
2020-06-30	$161,452,768	8,318,020	-7.6%	Shares	Sole	2020-08-13
2020-03-31	$129,779,754	8,999,983	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.