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OSI Systems
OSIS

Overview Fund Activity

331 hedge funds and large institutions have $4.19B invested in OSI Systems in 2025 Q2 according to their latest regulatory filings, with 62 funds opening new positions, 116 increasing their positions, 119 reducing their positions, and 26 closing their positions.

Holders
331
Holders Change
+26
Holders Change %
+8.52%
% of All Funds
4.45%
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
116
Reduced
119
Closed
26
Calls
$42.5M
Puts
$7.89M
Net Calls
+$34.7M
Net Calls Change
-$1.95M

Top Buyers

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

Top Sellers

1
UBS AM
1
UBS AM
Illinois
$129M
2
Janus Henderson Group
2
Janus Henderson Group
United Kingdom
$237M
3
SCM
3
SG Capital Management
Illinois
$12.1M
4
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$101M
5
CCMG
5
Clark Capital Management Group
Pennsylvania
$56.5M
Name Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$563M 2,504,708 -54,622 -2%
Vanguard Group
2
Vanguard Group
Pennsylvania
$475M 2,112,338 -690 -0%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$268M 1,190,679 -4,528 -0.4%
Janus Henderson Group
4
Janus Henderson Group
United Kingdom
$237M 1,052,726 -182,233 -15%
Capital International Investors
5
Capital International Investors
California
$152M 674,343 – –
State Street
6
State Street
Massachusetts
$150M 666,308 -60,343 -8%
UBS AM
7
UBS AM
Illinois
$129M 575,748 -301,645 -34%
Mawer Investment Management
8
Mawer Investment Management
Alberta, Canada
$115M 512,656 +51,634 +11%
Dimensional Fund Advisors
9
Dimensional Fund Advisors
Texas
$101M 449,410 -141,364 -24%
Geode Capital Management
10
Geode Capital Management
Massachusetts
$85.7M 381,128 +2,419 +0.6%
HRCM
11
Hood River Capital Management
Florida
$84.8M 377,061 +3,903 +1%
Primecap Management
12
Primecap Management
California
$72.3M 321,420 -12,910 -4%
Invesco
13
Invesco
Georgia
$71.8M 319,258 +73,004 +30%
Bank of America
14
Bank of America
North Carolina
$71.1M 316,294 +19,557 +7%
Neuberger Berman Group
15
Neuberger Berman Group
New York
$69.2M 307,966 -22,048 -7%
SFM
16
Systematic Financial Management
New Jersey
$59.1M 262,654 -1,347 -0.5%
ClearBridge Investments
17
ClearBridge Investments
New York
$57.4M 255,418 -44,621 -15%
CCMG
18
Clark Capital Management Group
Pennsylvania
$56.5M 251,050 -118,423 -32%
Millennium Management
19
Millennium Management
New York
$50.5M 224,523 +224,523 New
VanEck Associates
20
VanEck Associates
New York
$50.2M 223,442 -2,560 -1%
Morgan Stanley
21
Morgan Stanley
New York
$49.4M 219,706 +31,717 +17%
Macquarie Group
22
Macquarie Group
Australia
$48.9M 217,245 -14,350 -6%
Brown Advisory
23
Brown Advisory
Maryland
$48.7M 216,771 -62,019 -22%
Charles Schwab
24
Charles Schwab
California
$48.2M 214,263 +3,327 +2%
NPIC
25
Neumeier Poma Investment Counsel
California
$44.4M 197,462 -46,516 -19%
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