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

As of 2026-Q2, PRIMECAP MANAGEMENT CO/CA/ holds 19.2M shares of MU (MICRON TECHNOLOGY INC).

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

As of 2026-Q2, PRIMECAP MANAGEMENT CO/CA/'s MU position is worth $22.2B.

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

In 2026-Q2, PRIMECAP MANAGEMENT CO/CA/ decreased their MU position (-12.2% change in shares).

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

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

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PRIMECAP MANAGEMENT CO/CA/

MU
31 quarters

Position history for PRIMECAP MANAGEMENT CO/CA/'s holdings in MICRON TECHNOLOGY INC

Current Value

$22.2B

Current Shares

19.2M

Total Value Change

+$20.3B

Total Shares Change

-38.6M

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	19.2M	-12.2%	$22.2B	13.1%	$1,154.11	0
2026-Q1	Decreased	21.9M	-11.8%	$7.4B	5.8%	$379.68	0
2025-Q4	Decreased	24.8M	-16.4%	$7.1B	5.4%	$292.63	0
2025-Q3	Decreased	29.7M	-5.8%	$5B	3.8%	$163.73	0
2025-Q2	Decreased	31.5M	-15.6%	$3.9B	3.1%	$124.51	0
2025-Q1	Decreased	37.3M	-0.8%	$3.2B	2.7%	$88.15	0
2024-Q4	Decreased	37.6M	-0.1%	$3.2B	2.5%	$85.03	0
2024-Q3	Increased	37.6M	+0.6%	$3.9B	2.9%	$106.89	55
2024-Q2	Decreased	37.4M	-0.5%	$4.9B	3.6%	$130.67	0
2024-Q1	Increased	37.6M	+0.3%	$4.4B	3.3%	$117.12	59
2023-Q4	Decreased	37.5M	-0.4%	$3.2B	2.5%	$84.70	0
2023-Q3	Decreased	37.6M	-1.0%	$2.6B	2.2%	$67.32	0
2023-Q2	Decreased	38M	-2.4%	$2.4B	2.0%	$63.54	0
2023-Q1	Decreased	38.9M	-2.0%	$2.4B	2.0%	$62.19	0
2022-Q4	Decreased	39.7M	-1.7%	$2B	1.8%	$49.26	0
2022-Q3	Increased	40.4M	+0.0%	$2B	2.0%	$49.08	50
2022-Q2	Decreased	40.4M	-1.0%	$2.2B	2.0%	$54.87	0
2022-Q1	Decreased	40.8M	-0.9%	$3.2B	2.4%	$77.43	0
2021-Q4	Decreased	41.2M	-4.9%	$3.8B	2.7%	$91.74	0
2021-Q3	Decreased	43.4M	-0.7%	$3.1B	2.2%	$69.90	0
2021-Q2	Decreased	43.7M	-3.9%	$3.7B	2.5%	$80.91	0
2021-Q1	Decreased	45.4M	-6.4%	$4B	2.8%	$84.44	0
2020-Q4	Decreased	48.6M	-3.7%	$3.7B	2.7%	$70.17	0
2020-Q3	Decreased	50.4M	-2.0%	$2.4B	2.0%	$49.48	0
2020-Q2	Decreased	51.5M	-3.8%	$2.7B	2.3%	$47.96	0
2020-Q1	Decreased	53.5M	-4.3%	$2.2B	2.2%	$43.44	0
2019-Q4	Decreased	55.9M	-1.3%	$3B	2.2%	$51.92	0
2019-Q3	Decreased	56.6M	-1.9%	$2.4B	1.9%	$42.16	0
2019-Q2	Decreased	57.7M	-0.1%	$2.2B	1.6%	$37.65	0
2019-Q1	Decreased	57.8M	-0.1%	$2.4B	1.8%	$40.33	0
2018-Q4	New	57.9M	-	$1.8B	1.5%	$30.80	73

Other major holders of MU: BlackRock, Inc., VANGUARD CAPITAL MANAGEMENT LLC, BNP PARIBAS FINANCIAL MARKETS, STATE STREET CORP, Invesco Ltd.

MU31 quarters

MU
31 quarters