13F Insight
DOSSIER · 13F Holders · Q1 2026Inflation hedgeYield
DH

DEFINITIVE HEALTHCARE CORP

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

CUSIP 24477E103·118 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 1.5%
vs prior quarter
13F value held
$107M
46.0% inst. owned
of float
Holders
118
-113 QoQ
filers reporting
Activity
+33 / −78
+902 added · −894 reduced
this quarter
Concentration
71.69%
ADVENT INTERNATIONAL, L.P. #1
top holder share
AI Holders Summary · Q1 2026

118 institutions reported DH in Q1 2026. ADVENT INTERNATIONAL, L.P. leads at 71.7% of the visible book. -113 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
ADVENT INTERNATIONAL, L.P.
CIK 0001034196
$77M62.5M1.81%Q1 202602
GOLDMAN SACHS GROUP INC
CIK 0000886982
$7M6.0M0.00%Q1 202603
D. E. Shaw & Co., Inc.
CIK 0001009207
$6M2.1M0.00%Q4 202504
BlackRock, Inc.
CIK 0002012383
$4M3.0M0.00%Q1 202605
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$2M1.9M0.00%Q1 202606
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$2M1.7M0.00%Q1 202607
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$1M1.2M0.00%Q1 202608
STATE STREET CORP
CIK 0000093751
$1M856K0.00%Q1 202609
CITADEL ADVISORS LLC
CIK 0001423053
$867,027302K0.00%Q4 202510
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$863,489702K0.00%Q1 202611
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$726,170590K0.00%Q1 202612
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$628,702511K0.00%Q1 202613
NORTHERN TRUST CORP
CIK 0000073124· Index
$536,137436K0.00%Q1 202614
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$527,599429K0.00%Q1 202615
MORGAN STANLEY
CIK 0000895421
$521,890424K0.00%Q1 202616
BARCLAYS PLC
CIK 0000312069
$401,569326K0.00%Q1 202617
JACOBS LEVY EQUITY MANAGEMENT, INC
CIK 0000884414
$368,352299K0.00%Q1 202618
ALLIANCEBERNSTEIN L.P.
CIK 0001109448
$354,129123K0.00%Q1 202619
Vanguard Portfolio Management
CIK 0002100121· Index
$352,593287K0.00%Q1 202620
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$320,545261K0.00%Q1 2026
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