OSI Systems
OSIS • NASDAQ
OSI Systems is a hardware, equipment & parts company in the technology sector on NASDAQ, led by Ajay Mehra, with a market cap of $4.4B. As of Q3 2025, 111% of shares are held by 343 institutional investors, with BlackRock, Inc. as the largest holder at 14.88%.
President and Chief Executive OfficerAjay Mehra
Market Cap$4.4B
Hardware, Equipment & Parts
Technology
Employees6.4K
Websiteosi-systems.com
Country
United States of America
Overview
Overview of institutional ownership in OSIS as of Q3 2025 with a market cap of $4.2B
All Institutions
- Institutions
- 343
- Value Held
- $4.7B
- Shares Held
- 18.7M
- Avg Position
- $13.6M
- Median Position
- $825.0K
Hedge Funds
- Hedge Funds
- 36
- Value Held
- $175.0M
- Shares Held
- 701.9K
- Avg Position
- $4.9M
- Median Position
- $1.5M
Ownership Breakdown
Based on market cap of $4.2B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in OSIS as of Q3 2025
| Institution | Position Value |
|---|---|
B BlackRock, Inc. Institution | $624.2M 0.01% of portfolio |
 VANGUARD GROUP INC Institution | $525.3M 0.01% of portfolio |
 FMR LLC Institution | $271.7M 0.01% of portfolio |
 HENDERSON GROUP PLC Institution | $249.3M 0.11% of portfolio |
 Mawer Investment Management Ltd. Long Only Manager | $213.4M 1.11% of portfolio |
C Capital International Investors Institution | $168.1M 0.03% of portfolio |
 STATE STREET CORP Institution | $166.0M 0.01% of portfolio |
 UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager | $137.2M 0.03% of portfolio |
 DIMENSIONAL FUND ADVISORS LP Long Only Manager | $104.5M 0.02% of portfolio |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | $98.3M 0.01% of portfolio |
Net Capital Flow
Institutional buying and selling activity for OSIS in Q3 2025
- Traded
- +$45.3M
- Buyers
- 164
- Sellers
- 173
- Total Bought
- +$374.4M
- Total Sold
- −$329.2M
- Avg Position
- $12.1M
Biggest Buyers
| Institution | Net Bought |
|---|---|
Mawer Investment Management Ltd. Long Only Manager | +$85.7M +343.7K shares |
 PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager | +$47.6M +190.8K shares |
M MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Institution | +$40.2M +161.5K shares |
 UBS Group AG Institution | +$30.7M +123.2K shares |
 LOOMIS SAYLES & CO L P Long Only Manager | +$21.9M +87.9K shares |
 JPMORGAN CHASE & CO Institution | +$18.9M +75.8K shares |
S Swedbank AB Institution | +$15.3M +61.2K shares |
 DRIEHAUS CAPITAL MANAGEMENT LLC Hedge Fund•Event Driven | +$11.1M +44.3K shares |
 MORGAN STANLEY RIA/Wealth | +$10.4M +41.9K shares |
 Invesco Ltd. ETF Provider | +$8.0M +32.2K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
T T. Rowe Price Investment Management, Inc. Insurance Manager | −$32.6M −145.1K shares |
 MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | −$32.0M −128.4K shares |
FMR LLC Institution | −$25.0M −100.4K shares |
HENDERSON GROUP PLC Institution | −$13.1M −52.4K shares |
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | −$12.8M −51.3K shares |
T Telemark Asset Management, LLC Hedge Fund•Long/Short | −$11.2M −50.0K shares |
 BANK OF AMERICA CORP /DE/ Institution | −$10.2M −40.8K shares |
 SG Capital Management LLC Hedge Fund•Event Driven | −$10.0M −40.2K shares |
 Trexquant Investment LP Hedge Fund•Quant | −$8.3M −33.3K shares |
 HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Long Only Manager | −$7.8M −34.7K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited OSIS in Q3 2025
- New Positions
- 34
- New Value
- $12.0M
- Exited Positions
- 40
- Exited Value
- $92.6M
New Positions
| Institution | Position Value |
|---|---|
 Numerai GP LLC Hedge Fund•Quant | $3.4M 13.8K shares |
 Harvest Investment Services, LLC RIA/Wealth | $3.1M 12.3K shares |
$1.3M 5.1K shares | |
 Semanteon Capital Management, LP Hedge Fund•Long/Short | $572.0K 2.3K shares |
 Adviser Investments LLC Family Office | $423.7K 1.7K shares |
M Massar Capital Management, LP Institution | $315.3K 1.3K shares |
 Empirical Financial Services, LLC RIA/Wealth | $307.6K 1.2K shares |
 R Squared Ltd Private Equity | $304.6K 1.2K shares |
O OLD MISSION CAPITAL LLC Institution | $247.7K 994.0 shares |
H HB Wealth Management, LLC Institution | $239.8K 962.0 shares |
Exited Positions
| Institution | Previous Position |
|---|---|
T T. Rowe Price Investment Management, Inc. Insurance Manager | $32.6M 145.1K shares |
T Telemark Asset Management, LLC Hedge Fund•Long/Short | $11.2M 50.0K shares |
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC Long Only Manager | $7.8M 34.7K shares |
 EAM Global Investors LLC Long Only Manager | $5.7M 25.2K shares |
 Atom Investors LP Hedge Fund•Market Neutral | $5.5M 24.3K shares |
A AXA Institution | $5.2M 23.2K shares |
 BCJ Capital Management, LLC RIA/Wealth | $4.7M 20.9K shares |
C CSS LLC/IL Institution | $2.3M 10.3K shares |
T TEXAS PERMANENT SCHOOL FUND Institution | $2.2M 9.8K shares |
Y Y-Intercept Ltd Institution | $2.0M 8.8K shares |
Options Activity
Institutions with the largest Call and Put options positions in OSIS as of Q3 2025
- Call Positions
- 10
- Call Value
- $17.5M
- Put Positions
- 8
- Put Value
- $8.8M
Call Positions
| Institution | Position Value |
|---|---|
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $6.6M 266.0 contracts |
P PEAK6 LLC Institution | $6.5M 262.0 contracts |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $2.7M 108.0 contracts |
D D. E. Shaw & Co., Inc. Institution | $772.6K 31.0 contracts |
J JANE STREET GROUP, LLC Institution | $623.1K 25.0 contracts |
W WOLVERINE TRADING, LLC Institution | $261.8K 11.0 contracts |
BANK OF AMERICA CORP /DE/ Institution | - - contracts |
 Walleye Trading LLC RIA/Wealth | - - contracts |
 TORONTO DOMINION BANK Institution | - - contracts |
 TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy | - - contracts |
Put Positions
| Institution | Position Value |
|---|---|
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $7.8M 313.0 contracts |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $672.9K 27.0 contracts |
D D. E. Shaw & Co., Inc. Institution | $348.9K 14.0 contracts |
W WOLVERINE TRADING, LLC Institution | - - contracts |
J JANE STREET GROUP, LLC Institution | - - contracts |
Walleye Trading LLC RIA/Wealth | - - contracts |
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy | - - contracts |
TORONTO DOMINION BANK Institution | - - contracts |
Most Committed Institutions
Institutions with OSIS as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
P Prospect Capital Advisors, LLC Hedge Fund•Long/Short | 6.78% $13.1M |
 NEUMEIER POMA INVESTMENT COUNSEL LLC Long Only Manager | 3.97% $48.5M |
 Intrinsic Edge Capital Management LLC Hedge Fund•Multi-Strategy | 2.29% $15.1M |
 Bridge City Capital, LLC Long Only Manager | 1.84% $6.9M |
 SYSTEMATIC FINANCIAL MANAGEMENT LP Long Only Manager | 1.56% $64.0M |
 Cascade Investment Advisors, Inc. RIA/Wealth | 1.44% $2.4M |
M Manatuck Hill Partners, LLC Hedge Fund•Long/Short | 1.26% $3.6M |
T Thematics Asset Management Institution | 1.20% $26.5M |
 MOODY ALDRICH PARTNERS LLC Long Only Manager | 1.12% $5.9M |
Mawer Investment Management Ltd. Long Only Manager | 1.11% $213.4M |
Hedge Fund Spotlight
Discover hedge funds investing in OSIS
Quantbot Technologies LLC
Hedge Fund • Quant
Portfolio ManagerPaul Edward White
- Portfolio Value
- $3.7B
- Positions
- 1,694
- Last Reported
- Q3 2025
Sector Allocation
Position in OSI Systems
- Market Value
- $1.3M
- Shares Held
- 5.2K
- Portfolio Weight
- 0.03%
- Owned Since
- 2025-Q2
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Financial - Credit Services Financial Services | $29.1M | 0.79% | |
Semiconductors Technology | $27.8M | 0.75% | |
Conglomerates Industrials | $27.6M | 0.75% |
