How many institutional investors hold OSIS?

3 tracked institutional investors disclosed a position in OSIS (OSI SYSTEMS INC) in their most recent 13F filing.

Who is the largest institutional holder of OSIS?

Ken Griffin, Citadel Advisors, holds the largest disclosed position in OSIS, valued at $26M.

Where does this OSIS ownership data come from?

SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.

OSIS — OSI SYSTEMS INC

Name: OSI SYSTEMS INC (OSIS) — Institutional Ownership
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Public company

For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

About OSI SYSTEMS INC (OSIS)

OSI SYSTEMS INC (OSIS) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $26M. Across recent filings, tracked investors recorded 2 new positions, 0 increased, 1 reduced, and 1 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in OSIS

/100

Mixed Activity

Added / Increased2

Reduced1

Exited1

BearishBullish

Crowded Trade Score™

How many top investors track OSIS

/100

Emerging Interest

3investors

A small number of top investors own this.

UndiscoveredCrowded

151015+

OSIS Ownership Composition

How OSI SYSTEMS INC is held across tracked investor types, based on reported 13F positions.

Dominant Type

Other

100% of tracked value

Institutions

tracked investors

Total Reported

$19.1M

combined 13F value

Other100.0%

Other(3)

100.0%

Tracked investors reporting OSIS

Investor	Firm	Shares	Market value	% of portfolio	As of
Ken Griffin	Citadel Advisors	25.1K	$6.7M	0.00%	Mar 31, 2026
Izzy Englander	Millennium Management	43.6K	$11.6M	0.00%	Mar 31, 2026
Ray Dalio	Bridgewater Associates	3.2K	$853.3K	0.00%	Mar 31, 2026

Ken GriffinMar 31, 2026
Citadel Advisors
Shares
25.1K
Value
$6.7M
% Portfolio
0.00%
Izzy EnglanderMar 31, 2026
Millennium Management
Shares
43.6K
Value
$11.6M
% Portfolio
0.00%
Ray DalioMar 31, 2026
Bridgewater Associates
Shares
3.2K
Value
$853.3K
% Portfolio
0.00%

Recent activity

Investor	Action	Δ %	Current value	Filing date
Izzy Englander	New	—	$11.6M	May 15, 2026
Ken Griffin	Sold	-100.00%	$0	May 15, 2026
Ray Dalio	New	—	$853.3K	May 15, 2026
Ken Griffin	Reduced	-60.57%	$2.3K	Feb 17, 2026

Izzy Englander
New
$11.6MMay 15, 2026
Ken Griffin
Sold
$0(-100.00%)May 15, 2026
Ray Dalio
New
$853.3KMay 15, 2026
Ken Griffin
Reduced
$2.3K(-60.57%)Feb 17, 2026

Frequently asked questions

How many institutional investors hold OSIS?: 3 tracked institutional investors disclosed a position in OSIS (OSI SYSTEMS INC) in their most recent 13F filing.
Who is the largest institutional holder of OSIS?: Ken Griffin, Citadel Advisors, holds the largest disclosed position in OSIS, valued at $26M.
Did institutional ownership of OSIS increase or decrease?: Across recent 13F filings, tracked investors recorded 2 new positions, 0 increased, 1 reduced, and 1 fully exited OSIS.
Where does this OSIS ownership data come from?: SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.