$OSIS

$200.67 -$0.23 (0.11%) Close

$OSIS Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 15.9M shares outstanding

Who owns OSIS?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 63.0%

BlackRock, Inc. 16.0% · FMR LLC 10.9%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

363

-5 vs last qtr

Net shares bought

+57.2K

by institutions in Q2 2026

New / sold out

61 / 66

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Jupiter Topco LLC NEW +905.9K
Millennium Management LLC +254.9K

Biggest sellers in Q2 2026

Janus Henderson Group PLC SOLD OUT −772.3K
Mawer Investment Management Ltd. SOLD OUT −662.6K

Who is planning to sell?

Notices of proposed sale, last 12 months

$16.9M

5 notices from 3 people

Shares covered

61.9K

0.39% of the company

Arranged in advance

97%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Chopra Family Trust U/a Dtd12/20/2004 Director 10b5-1 $16.4M
James Hawkins Director $425K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2017–FY2026

−12.2%

−1.44% a year

Each share's claim on the business

+13.9%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$720M vs $270M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years68% 3–5 years5% 1–3 years12% Under 1 year15%

Quarterly turnover

15.7%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting OSIS on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	2.6M	16.01%	+22.4K (+0.9%)	≤2021	0.0%
Shares held by quarter Peak holding2.7M (Q4'24) Change over 8 quarters−102.5K Share of the company16.010% BlackRock, Inc.'s full portfolio →
F FMR LLC	1.7M	10.90%	−228.9K (−11.6%)	≤2021	0.0%
Shares held by quarter Peak holding2.0M (Q1'26) Change over 8 quarters+1.1M Share of the company10.900% FMR LLC's full portfolio →

BlackRock, Inc.

2.6M

% of company

16.01%

Change vs last qtr

+22.4K (+0.9%)

Held since

≤2021

FMR LLC

1.7M

% of company

10.90%

Change vs last qtr

−228.9K (−11.6%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding OSI Systems, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting OSIS on Form N-PORT; together they hold 70.8% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IC iShares Core S&P Small-Cap ETF iShares Trust	$204M	933.5K	5.86%	0.18%	June 30, 2026
SW SMALLCAP World Fund Inc SMALLCAP World Fund Inc	$127M	580.1K	3.64%	0.13%	June 30, 2026

iShares Core S&P Small-Cap ETF

iShares Trust

Position value

$204M

% of company

5.86%

% of the fund

0.18%

As of

June 30, 2026

SMALLCAP World Fund Inc

Position value

$127M

% of company

3.64%

% of the fund

0.13%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding OSI Systems, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
CD Chopra Deepak Insider	665.2K	4.17%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company4.170% Chopra Deepak's insider activity →
LM Luskin Meyer/ Insider	475.5K	2.98%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company2.980% Luskin Meyer/'s insider activity →

Chopra Deepak

Insider

665.2K

% of company

4.17%

Change vs last qtr

—

Held since

—

Luskin Meyer/

Insider

475.5K

% of company

2.98%

Change vs last qtr

—

Held since

—

14 more holders behind a free account

See every insider and 5%+ holder of OSI Systems, Inc..

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