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

As of 2026-Q2, PRIMECAP MANAGEMENT CO/CA/ holds 258,180 shares of OSIS (OSI SYSTEMS INC).

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

As of 2026-Q2, PRIMECAP MANAGEMENT CO/CA/'s OSIS position is worth $56.5M.

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

In 2026-Q2, PRIMECAP MANAGEMENT CO/CA/ increased their OSIS position (+5.5% change in shares).

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

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

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PRIMECAP MANAGEMENT CO/CA/

OSIS
31 quarters

Position history for PRIMECAP MANAGEMENT CO/CA/'s holdings in OSI SYSTEMS INC

Current Value

$56.5M

Current Shares

258,180

Total Value Change

+$36.4M

Total Shares Change

-15,520

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	258,180	+5.5%	$56.5M	0.0%	$218.70	31
2026-Q1	Decreased	244,660	-8.6%	$65M	0.1%	$286.90	0
2025-Q4	Decreased	267,710	-12.7%	$68.3M	0.1%	$262.95	0
2025-Q3	Decreased	306,630	-4.6%	$76.4M	0.1%	$237.99	0
2025-Q2	Decreased	321,420	-3.9%	$72.3M	0.1%	$224.05	0
2025-Q1	Increased	334,330	+12.3%	$65M	0.1%	$193.32	33
2024-Q4	Increased	297,710	+1.1%	$49.8M	0.0%	$167.25	30
2024-Q3	Increased	294,500	+5.0%	$44.7M	0.0%	$145.39	31
2024-Q2	Decreased	280,620	-4.3%	$38.6M	0.0%	$137.52	0
2024-Q1	Increased	293,100	+2.8%	$41.9M	0.0%	$142.82	30
2023-Q4	Increased	285,200	+2.2%	$36.8M	0.0%	$129.05	30
2023-Q3	Decreased	278,990	-3.9%	$32.9M	0.0%	$118.04	0
2023-Q2	Decreased	290,350	-1.4%	$34.2M	0.0%	$118.25	0
2023-Q1	Increased	294,340	+0.3%	$30.1M	0.0%	$100.83	29
2022-Q4	Decreased	293,310	-3.5%	$23.3M	0.0%	$79.52	0
2022-Q3	Decreased	304,100	-2.8%	$21.9M	0.0%	$73.76	0
2022-Q2	Decreased	312,800	-3.4%	$26.7M	0.0%	$84.98	0
2022-Q1	Decreased	323,960	-3.8%	$27.6M	0.0%	$85.55	0
2021-Q4	Decreased	336,630	-9.0%	$31.4M	0.0%	$93.23	0
2021-Q3	Decreased	369,900	-2.6%	$35.1M	0.0%	$95.09	0
2021-Q2	Decreased	379,950	-0.8%	$38.6M	0.0%	$100.13	0
2021-Q1	Increased	382,850	+9.6%	$36.8M	0.0%	$96.65	32
2020-Q4	Decreased	349,400	-1.4%	$32.6M	0.0%	$93.01	0
2020-Q3	Increased	354,300	+31.2%	$27.5M	0.0%	$77.65	36
2020-Q2	Increased	270,100	+11.8%	$20.2M	0.0%	$73.84	32
2020-Q1	Increased	241,700	+2.4%	$16.7M	0.0%	$66.80	29
2019-Q4	Unchanged	236,100	0.0%	$23.8M	0.0%	$100.32	0
2019-Q3	Increased	236,100	+0.2%	$24M	0.0%	$104.23	29
2019-Q2	Decreased	235,600	-8.9%	$26.5M	0.0%	$112.63	0
2019-Q1	Decreased	258,700	-5.5%	$22.7M	0.0%	$87.60	0
2018-Q4	New	273,700	-	$20.1M	0.0%	$73.31	39

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

OSIS31 quarters

OSIS
31 quarters