13F Insight
DOSSIER · 13F Holders · Q1 2026Healthcare · In Vitro & In Vivo Diagnostic SubstancesHigh-convictionMulti-bagger
QDEL

QUIDELORTHO CORP

251 institutions still hold QUIDELORTHO CORP as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 219798105·In Vitro & In Vivo Diagnostic Substances·251 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 7.7%
vs prior quarter
13F value held
$1.0B
57.0% inst. owned
of float
Holders
251
+41 QoQ
filers reporting
Activity
+18 / −87
+800 added · −867 reduced
this quarter
Concentration
16.83%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

251 institutions reported QDEL in Q1 2026. BlackRock, Inc. leads at 16.8% of the visible book. +41 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
$172M10.4M0.00%Q1 202602
FMR LLC
CIK 0000315066
$108M6.6M0.01%Q1 202603
Rubric Capital Management LP
CIK 0001687509
$108M3.8M1.29%Q4 202504
Newtyn Management, LLC
CIK 0001569241
$75M4.6M8.00%Q1 202605
Vanguard Portfolio Management
CIK 0002100121
$66M4.0M0.00%Q1 202606
Invesco Ltd.
CIK 0000914208
$51M3.1M0.01%Q1 202607
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$50M3.1M0.00%Q1 202608
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$50M3.0M0.01%Q1 202609
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$47M2.9M0.02%Q1 202610
STATE STREET CORP
CIK 0000093751
$46M2.8M0.00%Q1 202611
GOLDMAN SACHS GROUP INC
CIK 0000886982
$40M2.4M0.00%Q1 202612
FRONTIER CAPITAL MANAGEMENT CO LLC
CIK 0000351173
$29M1.8M0.30%Q1 202613
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$28M1.7M0.00%Q1 202614
SEGALL BRYANT & HAMILL, LLC
CIK 0001006378
$25M1.5M0.36%Q1 202615
Neuberger Berman Group LLC
CIK 0001465109
$25M1.5M0.02%Q1 202616
PARADIGM CAPITAL MANAGEMENT INC/NY
CIK 0001037792
$25M1.5M0.96%Q1 202617
PRIVATE MANAGEMENT GROUP INC
CIK 0001142031
$23M1.4M0.66%Q1 202618
D. E. Shaw & Co., Inc.
CIK 0001009207
$18M644K0.01%Q4 202519
RICE HALL JAMES & ASSOCIATES, LLC
CIK 0001230765
$17M1.0M0.94%Q1 202620
MORGAN STANLEY
CIK 0000895421
$17M1.0M0.00%Q1 2026
Page 1 of 13
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