13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Semiconductors & Related DevicesBellwetherCompounder
OSIS

OSI SYSTEMS INC

393 institutions still hold OSI SYSTEMS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 671044105·Semiconductors & Related Devices·393 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 5.0%
vs prior quarter
13F value held
$3.4B
67.0% inst. owned
of float
Holders
393
+68 QoQ
filers reporting
Activity
+50 / −32
+749 added · −817 reduced
this quarter
Concentration
19.49%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

393 institutions reported OSIS in Q1 2026. BlackRock, Inc. leads at 19.5% of the visible book. +68 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$672M2.5M0.01%Q1 202602
FMR LLC
CIK 0000315066
$522M2.0M0.03%Q1 202603
Vanguard Portfolio Management
CIK 0002100121
$332M1.2M0.02%Q1 202604
JANUS HENDERSON GROUP PLC
CIK 0001274173
$205M772K0.10%Q1 202605
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$186M699K0.00%Q1 202606
Mawer Investment Management Ltd.
CIK 0001538449
$176M663K1.14%Q1 202607
STATE STREET CORP
CIK 0000093751
$176M662K0.01%Q1 202608
Capital International Investors
CIK 0001562230
$164M619K0.04%Q1 202609
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$117M441K0.01%Q1 202610
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
CIK 0000861177
$114M431K0.02%Q1 202611
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$105M395K0.02%Q1 202612
Invesco Ltd.
CIK 0000914208
$99M373K0.02%Q1 202613
Hood River Capital Management LLC
CIK 0001578177
$99M372K0.99%Q1 202614
Neuberger Berman Group LLC
CIK 0001465109
$81M304K0.06%Q1 202615
Clark Capital Management Group, Inc.
CIK 0001352187
$72M270K0.44%Q1 202616
Channing Capital Management, LLC
CIK 0001302404
$71M267K1.81%Q1 202617
BANK OF AMERICA CORP /DE/
CIK 0000070858
$71M266K0.01%Q1 202618
PRIMECAP MANAGEMENT CO/CA/
CIK 0000763212
$65M245K0.05%Q1 202619
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
CIK 0001705339
$62M232K0.08%Q1 202620
SYSTEMATIC FINANCIAL MANAGEMENT LP
CIK 0001085936
$58M219K1.33%Q1 2026
Page 1 of 20
373 more holders available. Log in →