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OSI Systems
OSIS

Overview Fund Activity

305 hedge funds and large institutions have $3.78B invested in OSI Systems in 2025 Q1 according to their latest regulatory filings, with 56 funds opening new positions, 97 increasing their positions, 113 reducing their positions, and 47 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
305
Holders Change
+4
Holders Change %
+1.33%
% of All Funds
4.14%
Holding in Top 10
7
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+75%
% of All Funds
0.1%
New
56
Increased
97
Reduced
113
Closed
47
Calls
$50.3M
Puts
$13.7M
Net Calls
+$36.6M
Net Calls Change
-$2.98M

Top Buyers

1
UBS AM
1
UBS AM
Illinois
$171M
2
Fidelity Investments
2
Fidelity Investments
Massachusetts
$232M
3
SCM
3
SG Capital Management
Illinois
$43.9M
4
T. Rowe Price Investment Management
4
T. Rowe Price Investment Management
Maryland
$39.7M
5
Bank of America
5
Bank of America
North Carolina
$57.7M

Top Sellers

1
Dimensional Fund Advisors
1
Dimensional Fund Advisors
Texas
$115M
2
Boston Partners
2
Boston Partners
Massachusetts
$18.6M
3
BlackRock
3
BlackRock
New York
$497M
4
Goldman Sachs
4
Goldman Sachs
New York
$20.5M
5
Morgan Stanley
5
Morgan Stanley
New York
$36.5M
Name Holding Trade Value Shares
Change 		Shares
Change %
BF
301
BOK Financial
Oklahoma
$583 – – –
IA
302
IFP Advisors
Florida
$389 – – –
HNB
303
Huntington National Bank
Ohio
$389 – – –
TFM
304
TFC Financial Management
Massachusetts
$195 – – –
Norges Bank
305
Norges Bank
Norway
– -$9.08M -54,260 Closed
Citadel Advisors
306
Citadel Advisors
Florida
– -$7.38M -44,069 Closed
Two Sigma Investments
307
Two Sigma Investments
New York
– -$4.45M -26,557 Closed
GIM
308
Granahan Investment Management
Massachusetts
– -$3.32M -19,851 Closed
CCIA
309
Campbell & Co Investment Adviser
Maryland
– -$2.46M -14,699 Closed
AC
310
Aristides Capital
Kentucky
– -$2.09M -12,469 Closed
Voloridge Investment Management
311
Voloridge Investment Management
Florida
– -$1.68M -10,018 Closed
EP
312
Edgestream Partners
New Jersey
– -$1.68M -10,006 Closed
FHB
313
First Hawaiian Bank
Hawaii
– -$1.38M -8,214 Closed
DTL
314
Dynamic Technology Lab
Singapore
– -$1.21M -7,240 Closed
Millennium Management
315
Millennium Management
New York
– -$956K -5,711 Closed
I
316
InceptionR
California
– -$943K -5,635 Closed
Janney Montgomery Scott
317
Janney Montgomery Scott
Pennsylvania
– -$629K -3,757 Closed
VF
318
Virtu Financial
New York
– -$521K -3,113 Closed
BFM
319
Boothbay Fund Management
New York
– -$508K -3,036 Closed
OQS
320
Occudo Quantitative Strategies
Florida
– -$500K -2,989 Closed
FC
321
Farringdon Capital
United Kingdom
– -$340K -2,028 Closed
PCM
322
Prelude Capital Management
New York
– -$335K -2,000 Closed
Cambridge Investment Research Advisors
323
Cambridge Investment Research Advisors
Iowa
– -$322K -1,923 Closed
Envestnet Portfolio Solutions
324
Envestnet Portfolio Solutions
Illinois
– -$307K -1,836 Closed
VIA
325
Virtus Investment Advisers
Connecticut
– -$301K -1,796 Closed
11 12
13
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