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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 %
Teacher Retirement System of Texas
201
Teacher Retirement System of Texas
Texas
$548K +$26.5K +118 +5%
VI
202
Vestcor Inc
New Brunswick, Canada
$539K +$352K +1,568 +189%
YMRC
203
Yorktown Management & Research Company
Virginia
$510K +$510K +2,270 New
Pictet Asset Management
204
Pictet Asset Management
Switzerland
$482K -$126K -561 -21%
TRCT
205
Tower Research Capital (TRC)
New York
$477K +$433K +1,926 +988%
Public Employees Retirement Association of Colorado
206
Public Employees Retirement Association of Colorado
Colorado
$473K – – –
Mariner
207
Mariner
Kansas
$457K -$72.2K -321 -14%
BCI
208
Brinker Capital Investments
Pennsylvania
$454K -$145K -645 -24%
PFA
209
Pure Financial Advisors
California
$453K +$453K +2,016 New
MOACM
210
Mutual of America Capital Management
New York
$451K -$60.7K -270 -12%
CWM
211
CIBC World Markets
New York
$445K -$347K -1,544 -44%
AA
212
ALPS Advisors
Colorado
$432K +$5.17K +23 +1%
HSBC Holdings
213
HSBC Holdings
United Kingdom
$420K -$65.9K -295 -14%
Los Angeles Capital Management
214
Los Angeles Capital Management
California
$411K -$352K -1,565 -46%
II
215
Inspire Investing
Idaho
$393K -$7.65K -34 -2%
AAS
216
Avantax Advisory Services
Texas
$391K +$4.5K +20 +1%
SSA
217
Schonfeld Strategic Advisors
New York
$382K +$102K +455 +37%
TCM
218
Teza Capital Management
Illinois
$378K +$4.05K +18 +1%
QCG
219
Quadrant Capital Group
Ohio
$372K +$1.57K +7 +0.4%
FFA
220
Farther Finance Advisors
California
$369K +$341K +1,517 +1,204%
QCM
221
Quantinno Capital Management
New York
$364K +$26.8K +119 +8%
AIP
222
Ameritas Investment Partners
Nebraska
$361K – – –
QCM
223
QRG Capital Management
Illinois
$358K -$294K -1,306 -45%
Robeco Institutional Asset Management
224
Robeco Institutional Asset Management
Netherlands
$354K -$33.3K -148 -9%
Federated Hermes
225
Federated Hermes
Pennsylvania
$353K -$153K -680 -30%
7 8
9
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