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OSI Systems
OSIS

Overview Fund Activity

334 hedge funds and large institutions have $4.2B invested in OSI Systems in 2025 Q2 according to their latest regulatory filings, with 62 funds opening new positions, 117 increasing their positions, 120 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
334
Holders Change
+29
Holders Change %
+9.51%
% of All Funds
4.48%
Holding in Top 10
5
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-28.57%
% of All Funds
0.07%
New
62
Increased
117
Reduced
120
Closed
26
Calls
$56.3M
Puts
$14.4M
Net Calls
+$42M
Net Calls Change
+$5.36M

Top Buyers

1
Millennium Management
Millennium Management
New York
$50.5M
2
DCM
Driehaus Capital Management
Illinois
$23.1M
3
Invesco
Invesco
Georgia
$71.8M
4
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
$16.8M
5
Citadel Advisors
Citadel Advisors
Florida
$13.6M

Top Sellers

1
UBS AM
UBS AM
Illinois
$129M
2
Janus Henderson Group
Janus Henderson Group
United Kingdom
$237M
3
SCM
SG Capital Management
Illinois
$12.1M
4
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
$101M
5
CCMG
Clark Capital Management Group
Pennsylvania
$56.5M
Name Holding Trade Value Shares
Change 		Shares
Change %
Schroder Investment Management Group
176
Schroder Investment Management Group
United Kingdom
$825K – – –
GIM
177
Glenmede Investment Management
Pennsylvania
$822K +$822K +3,656 New
PFSRSONJ
178
Police & Firemen's Retirement System of New Jersey
New Jersey
$805K +$29K +129 +4%
OPERF
179
Oregon Public Employees Retirement Fund
Oregon
$805K +$7.87K +35 +1%
ProShare Advisors
180
ProShare Advisors
Maryland
$803K -$36K -160 -4%
State Board of Administration of Florida Retirement System
181
State Board of Administration of Florida Retirement System
Florida
$803K +$288K +1,279 +56%
GI
182
GAMCO Investors
Connecticut
$801K +$801K +3,564 New
EH
183
Equitable Holdings
New York
$788K +$788K +3,503 New
NSIM
184
North Star Investment Management
Illinois
$787K – – –
SW
185
SteelPeak Wealth
California
$764K -$14.2K -63 -2%
Group One Trading
186
Group One Trading
Illinois
$754K +$754K +3,354 New
PFM
187
Premier Fund Managers
United Kingdom
$741K -$193K -864 -21%
OC
188
Oppenheimer & Co
New York
$725K +$725K +3,223 New
KK
189
KLP Kapitalforvaltning
Norway
$720K – – –
BEI
190
Benjamin Edwards Inc
Missouri
$709K +$61.6K +274 +10%
HighTower Advisors
191
HighTower Advisors
Illinois
$675K +$3.82K +17 +0.6%
LIP
192
Liontrust Investment Partners
United Kingdom
$667K -$155K -691 -19%
Toronto Dominion Bank
193
Toronto Dominion Bank
Ontario, Canada
$665K +$124K +549 +23%
William Blair & Company
194
William Blair & Company
Illinois
$651K +$651K +2,893 New
Bank of Montreal
195
Bank of Montreal
Ontario, Canada
$636K +$7.42K +33 +1%
Walleye Trading
196
Walleye Trading
New York
$617K +$617K +2,742 New
WG
197
Winton Group
United Kingdom
$590K +$590K +2,622 New
TC
198
Truvestments Capital
Florida
$582K -$1.8K -8 -0.3%
SG Americas Securities
199
SG Americas Securities
New York
$582K +$582K +2,590 New
ECM
200
Everence Capital Management
Indiana
$573K – – –
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8
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