OSI Systems Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:OSIS Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
12 Sep 25	SellUS$133,666	William Ballhaus	Individual	562	US$237.84
04 Sep 25	SellUS$395,626	Paul Morben	Individual	1,671	US$236.76
12 Jun 25	SellUS$237,150	Meyer Luskin	Individual	1,000	US$237.15
21 May 25	SellUS$171,660	William Ballhaus	Individual	750	US$228.88
13 May 25	SellUS$4,580,000	Alan Edrick	Individual	20,000	US$229.00
08 May 25	SellUS$154,724	Glenn Grindstaff	Individual	688	US$224.89
06 May 25	SellUS$205,045	William Ballhaus	Individual	933	US$219.77
06 May 25	SellUS$1,100,550	Deepak Chopra	Individual	5,000	US$220.11
04 Feb 25	SellUS$3,965,200	Deepak Chopra	Individual	20,000	US$198.26
30 Jan 25	SellUS$30,901	Paul Morben	Individual	155	US$199.36
27 Jan 25	SellUS$528,937	Gerald Chizever	Individual	2,701	US$195.83
13 Dec 24	SellUS$451,670	Aliabadi Mansouri	Individual	2,509	US$180.02
13 Dec 24	SellUS$1,880,989	Alan Edrick	Individual	10,000	US$188.42
12 Dec 24	SellUS$3,753,200	Deepak Chopra	Individual	20,000	US$187.66
10 Dec 24	SellUS$122,600	William Ballhaus	Individual	675	US$181.63
10 Dec 24	SellUS$365,240	James Hawkins	Individual	2,000	US$182.62
04 Dec 24	SellUS$311,714	Aliabadi Mansouri	Individual	1,728	US$180.39
11 Nov 24	SellUS$2,301,250	Deepak Chopra	Individual	15,000	US$153.47
07 Nov 24	SellUS$296,320	Gerald Chizever	Individual	2,000	US$148.16

Insider Trading Volume

Insider Buying: OSIS insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of OSIS?
Owner Type	Number of Shares	Ownership Percentage
State or Government	3,867	0.0194%
Individual Insiders	992,292	4.98%
Institutions	18,940,459	95%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 84.38% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
14.9%	BlackRock, Inc.	2,504,668	US$604.9m	-2.14%	0.01%
12.6%	The Vanguard Group, Inc.	2,112,338	US$510.1m	-0.03%	0.01%
7.07%	FMR LLC	1,189,328	US$287.2m	-3.7%	0.02%
6.26%	Janus Henderson Group plc	1,052,726	US$254.2m	-14.8%	0.09%
4.57%	UBS Asset Management AG	768,870	US$185.7m	-31.7%	0.01%
4.01%	Capital Research and Management Company	674,343	US$162.9m	0%	0.01%
3.96%	State Street Global Advisors, Inc.	666,308	US$160.9m	-8.3%	0.01%
3.05%	Mawer Investment Management Ltd.	512,656	US$123.8m	11.2%	0.31%
2.67%	Dimensional Fund Advisors LP	449,410	US$108.5m	-23.9%	0.02%
2.27%	Geode Capital Management, LLC	381,128	US$92.0m	0.64%	0.01%
2.24%	Hood River Capital Management LLC	377,061	US$91.1m	1.05%	1.02%
1.91%	PRIMECAP Management Company	321,420	US$77.6m	-3.86%	0.05%
1.86%	Deepak Chopra	312,969	US$75.6m	-5.36%	no data
1.83%	Neuberger Berman Investment Advisers LLC	307,966	US$74.4m	-6.68%	0.05%
1.76%	Alan Edrick	296,880	US$71.7m	4.16%	no data
1.56%	Systematic Financial Management LP	262,654	US$63.4m	-0.51%	1.48%
1.52%	ClearBridge Investments, LLC	255,418	US$61.7m	-14.9%	0.05%
1.49%	Clark Capital Management Group Inc	251,050	US$60.6m	-32%	0.4%
1.33%	Millennium Management LLC	224,523	US$54.2m	0%	0.04%
1.33%	Van Eck Associates Corporation	223,442	US$54.0m	-1.13%	0.04%
1.29%	Macquarie Investment Management Business Trust	217,245	US$52.5m	-6.2%	0.07%
1.29%	Brown Advisory Incorporated	216,522	US$52.3m	-22.3%	0.07%
1.27%	Charles Schwab Investment Management, Inc.	214,263	US$51.7m	0%	0.01%
1.22%	Invesco Capital Management LLC	204,782	US$49.5m	-12.4%	0.02%
1.18%	T. Rowe Price Group, Inc.	199,258	US$48.1m	-7.83%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/10/13 11:46
End of Day Share Price	2025/10/13 00:00
Earnings	2025/06/30
Annual Earnings	2025/06/30

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

OSI Systems, Inc. is covered by 12 analysts. 6 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Yi Hsiao Millward	Benchmark Company
David Mizrahi	Berenberg
Mariana Perez Mora	BofA Global Research