13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Services-Engineering ServicesMega-capCrowded
ACM

AECOM

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

CUSIP 00766T100·Services-Engineering Services·644 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 4.3%
vs prior quarter
13F value held
$6.1B
53.0% inst. owned
of float
Holders
644
+42 QoQ
filers reporting
Activity
+13 / −64
+899 added · −778 reduced
this quarter
Concentration
21.90%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

644 institutions reported ACM in Q1 2026. BlackRock, Inc. leads at 21.9% of the visible book. +42 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
$1.3B15.8M0.02%Q1 202602
PRIMECAP MANAGEMENT CO/CA/
CIK 0000763212
$733M8.6M0.58%Q1 202603
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$492M5.8M0.01%Q1 202604
Vanguard Portfolio Management
CIK 0002100121· Index
$467M5.5M0.02%Q1 202605
STATE STREET CORP
CIK 0000093751
$428M5.0M0.01%Q1 202606
Invesco Ltd.
CIK 0000914208
$303M3.6M0.05%Q1 202607
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
CIK 0000861177
$295M3.5M0.06%Q1 202608
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$257M3.0M0.18%Q1 202609
BARROW HANLEY MEWHINNEY & STRAUSS LLC
CIK 0000313028
$242M2.9M0.79%Q1 202610
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$209M2.5M0.01%Q1 202611
Pictet Asset Management Holding SA
CIK 0001993888
$181M2.1M0.19%Q1 202612
FMR LLC
CIK 0000315066
$179M2.1M0.01%Q1 202613
NORTHERN TRUST CORP
CIK 0000073124· Index
$167M2.0M0.02%Q1 202614
MORGAN STANLEY
CIK 0000895421
$142M1.7M0.01%Q1 202615
UBS Group AG
CIK 0001610520
$121M1.4M0.02%Q1 202616
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$118M1.4M0.02%Q1 202617
Impax Asset Management Group plc
CIK 0001749768
$117M1.4M0.82%Q1 202618
Bank of New York Mellon Corp
CIK 0001390777
$110M1.3M0.02%Q1 202619
Amundi
CIK 0001330387
$104M1.2M0.03%Q1 202620
MANUFACTURERS LIFE INSURANCE COMPANY, THE
CIK 0000928047
$104M1.2M0.09%Q1 2026
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