DOSSIER · 13F Holders · Q1 2026Healthcare · Laboratory Analytical Instruments
AVTR

AVANTOR INC

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

CUSIP 05352A100·Laboratory Analytical Instruments·471 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$3.9B
visible holders
Holders
471
filers reporting
Concentration
24.20%
DODGE & COX #1
top holder share
AI Holders Summary · Q1 2026

471 institutions reported AVTR in Q1 2026. DODGE & COX leads at 24.2% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
DODGE & COX
CIK 0000200217
$938M119.6M0.52%Q1 2026
02
BlackRock, Inc.
CIK 0002012383
$515M65.7M0.01%Q1 2026
03
Vanguard Portfolio Management
CIK 0002100121· Index
$245M31.3M0.01%Q1 2026
04
GREENHAVEN ASSOCIATES INC
CIK 0000846222
$244M24.6M2.82%Q2 2026
05
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$240M30.6M0.01%Q1 2026
06
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$190M24.2M0.04%Q1 2026
07
BARROW HANLEY MEWHINNEY & STRAUSS LLC
CIK 0000313028
$175M22.4M0.57%Q1 2026
08
STATE STREET CORP
CIK 0000093751
$162M20.7M0.01%Q1 2026
09
Engine Capital Management, LP
CIK 0001665590
$155M19.8M18.72%Q1 2026
10
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$132M16.9M0.03%Q1 2026
11
T. Rowe Price Investment Management, Inc.
CIK 0001897612
$116M14.8M0.08%Q1 2026
12
New Mountain Capital, L.L.C.
CIK 0001407718
$110M14.0M100.00%Q1 2026
13
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$108M13.8M0.01%Q1 2026
14
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$101M12.9M0.01%Q1 2026
15
LONDON CO OF VIRGINIA
CIK 0001259887
$85M10.9M0.52%Q1 2026
16
FULLER & THALER ASSET MANAGEMENT, INC.
CIK 0001082327
$83M10.6M0.28%Q1 2026
17
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.
CIK 0001021642
$73M7.4M0.65%Q2 2026
18
D. E. Shaw & Co., Inc.
CIK 0001009207
$71M6.2M0.04%Q4 2025
19
Clarkston Capital Partners, LLC
CIK 0001562855
$68M8.6M5.16%Q1 2026
20
First Pacific Advisors, LP
CIK 0001377581
$63M8.1M0.89%Q1 2026
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Insiders at AVANTOR INC
Sokenu ClaudiusWalker CoreyLucier Gregory TSumme Gregory LMehra Sanjeev KSeverino MichaelMassaro Joseph RMakin Louise