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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 %
UBS Group
26
UBS Group
Switzerland
$43.4M -$12.3M -54,624 -22%
Northern Trust
27
Northern Trust
Illinois
$40.1M -$407K -1,812 -1%
T. Rowe Price Investment Management
28
T. Rowe Price Investment Management
Maryland
$32.6M -$13.3M -59,059 -29%
Bank of New York Mellon
29
Bank of New York Mellon
New York
$31M +$7.48M +33,263 +32%
Goldman Sachs
30
Goldman Sachs
New York
$29.4M +$5.59M +24,852 +24%
Loomis, Sayles & Company
31
Loomis, Sayles & Company
Massachusetts
$29.1M +$7.49M +33,320 +35%
TAM
32
Thematics Asset Management
France
$25.3M -$2.75M -12,223 -10%
Swedbank
33
Swedbank
Sweden
$24.7M -$4.5M -20,000 -15%
NL
34
Nuveen LLC
North Carolina
$24.5M +$6.53M +29,026 +36%
OAM
35
Oberweis Asset Management
Illinois
$24.5M +$1.93M +8,600 +9%
Principal Financial Group
36
Principal Financial Group
Iowa
$23.2M +$1.14M +5,090 +5%
DCM
37
Driehaus Capital Management
Illinois
$23.1M +$23.1M +102,713 New
Boston Partners
38
Boston Partners
Massachusetts
$22M +$408K +1,825 +2%
Envestnet Asset Management
39
Envestnet Asset Management
Illinois
$20.1M +$1.12M +4,990 +6%
Royal Bank of Canada
40
Royal Bank of Canada
Ontario, Canada
$16.8M +$14.5M +64,577 +630%
Lord, Abbett & Co
41
Lord, Abbett & Co
New Jersey
$14.3M -$6.51M -28,965 -31%
Citadel Advisors
42
Citadel Advisors
Florida
$13.6M +$13.6M +60,489 New
CSS
43
Cubist Systematic Strategies
Connecticut
$13.6M +$13.6M +60,373 New
TI
44
Trexquant Investment
Connecticut
$13.4M +$9.32M +41,445 +229%
JPMorgan Chase & Co
45
JPMorgan Chase & Co
New York
$12.2M +$8.91M +39,616 +267%
T. Rowe Price Associates
46
T. Rowe Price Associates
Maryland
$12.2M +$9.47M +42,126 +351%
SCM
47
SG Capital Management
Illinois
$12.1M -$38.7M -172,043 -76%
PCA
48
Prospect Capital Advisors
California
$12M -$31.5K -140 -0.3%
Public Sector Pension Investment Board (PSP Investments)
49
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$12M +$822K +3,657 +7%
Nordea Investment Management
50
Nordea Investment Management
Sweden
$11.9M +$18.5K +82 +0.2%
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