How many shares of ALKS does PRIMECAP MANAGEMENT CO/CA/ own?

As of 2026-Q2, PRIMECAP MANAGEMENT CO/CA/ holds 2.5M shares of ALKS (ALKERMES PLC).

What is PRIMECAP MANAGEMENT CO/CA/'s ALKS position worth?

As of 2026-Q2, PRIMECAP MANAGEMENT CO/CA/'s ALKS position is worth $132.5M.

Is PRIMECAP MANAGEMENT CO/CA/ buying or selling ALKS?

In 2026-Q2, PRIMECAP MANAGEMENT CO/CA/ decreased their ALKS position (-0.5% change in shares).

When did PRIMECAP MANAGEMENT CO/CA/ first buy ALKS?

Based on available 13F filings, PRIMECAP MANAGEMENT CO/CA/ first reported a position in ALKS in 2018-Q4. They have held the position across 31 quarters.

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PRIMECAP MANAGEMENT CO/CA/

ALKS
31 quarters

Position history for PRIMECAP MANAGEMENT CO/CA/'s holdings in ALKERMES PLC

Current Value

$132.5M

Current Shares

2.5M

Total Value Change

-$554.5M

Total Shares Change

-20.8M

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	2.5M	-0.5%	$132.5M	0.1%	$52.40	0
2026-Q1	Decreased	2.5M	-0.9%	$89.8M	0.1%	$29.20	0
2025-Q4	Decreased	2.6M	-7.1%	$71.7M	0.1%	$27.81	0
2025-Q3	Decreased	2.8M	-4.9%	$82.8M	0.1%	$29.04	0
2025-Q2	Decreased	2.9M	-3.4%	$83M	0.1%	$28.81	0
2025-Q1	Decreased	3M	-3.0%	$99.2M	0.1%	$33.21	0
2024-Q4	Decreased	3.1M	-6.1%	$89M	0.1%	$28.78	0
2024-Q3	Decreased	3.3M	-2.6%	$92.3M	0.1%	$27.53	0
2024-Q2	Decreased	3.4M	-2.5%	$81.6M	0.1%	$24.10	0
2024-Q1	Decreased	3.5M	-2.6%	$94M	0.1%	$27.07	0
2023-Q4	Decreased	3.6M	-8.2%	$98.9M	0.1%	$27.74	0
2023-Q3	Decreased	3.9M	-5.9%	$108.7M	0.1%	$28.01	0
2023-Q2	Decreased	4.1M	-1.7%	$129.2M	0.1%	$31.33	0
2023-Q1	Decreased	4.2M	-12.6%	$118.3M	0.1%	$27.82	0
2022-Q4	Decreased	4.8M	-10.2%	$125.5M	0.1%	$26.13	0
2022-Q3	Decreased	5.3M	-0.8%	$119.4M	0.1%	$22.46	0
2022-Q2	Decreased	5.4M	-4.9%	$160.5M	0.1%	$30.29	0
2022-Q1	Decreased	5.7M	-6.7%	$149.1M	0.1%	$26.57	0
2021-Q4	Decreased	6.1M	-5.2%	$141.3M	0.1%	$23.35	0
2021-Q3	Decreased	6.4M	-2.3%	$197.7M	0.1%	$30.91	0
2021-Q2	Decreased	6.6M	-1.7%	$160.8M	0.1%	$24.30	0
2021-Q1	Decreased	6.7M	-6.4%	$124.6M	0.1%	$18.72	0
2020-Q4	Decreased	7.1M	-3.4%	$142.2M	0.1%	$20.45	0
2020-Q3	Decreased	7.4M	-11.4%	$122.2M	0.1%	$16.53	0
2020-Q2	Decreased	8.3M	-7.6%	$161.4M	0.1%	$19.35	0
2020-Q1	Decreased	9M	-36.2%	$129.8M	0.1%	$14.40	0
2019-Q4	Decreased	14.1M	-35.6%	$287.6M	0.2%	$20.13	0
2019-Q3	Decreased	21.9M	-5.8%	$427.5M	0.3%	$19.63	0
2019-Q2	Decreased	23.3M	-0.0%	$524.2M	0.4%	$22.54	0
2019-Q1	Decreased	23.3M	-0.1%	$848.9M	0.6%	$36.49	0
2018-Q4	New	23.3M	-	$687M	0.6%	$28.49	62

Other major holders of ALKS: BNP PARIBAS FINANCIAL MARKETS, BlackRock, Inc.

ALKS31 quarters

ALKS
31 quarters