DOSSIER · 13F Holders · Q2 2026Industrials · Electrical Work
FIX

COMFORT SYS USA INC

1,395 institutions still hold COMFORT SYS USA INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 199908104·Electrical Work·1,395 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$37.1B
visible holders
Holders
1,395
filers reporting
Concentration
18.16%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q2 2026

1,395 institutions reported FIX in Q2 2026. BlackRock, Inc. leads at 18.2% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$6.7B3.4M0.10%Q2 2026
02
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$4.6B2.3M0.10%Q2 2026
03
Vanguard Portfolio Management
CIK 0002100121· Index
$3.7B1.9M0.17%Q2 2026
04
FMR LLC
CIK 0000315066
$3.3B1.7M0.14%Q2 2026
05
STATE STREET CORP
CIK 0000093751
$3.0B1.5M0.09%Q2 2026
06
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$2.3B1.2M0.12%Q2 2026
07
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$2.1B1.1M0.73%Q2 2026
08
JPMORGAN CHASE & CO
CIK 0000019617
$1.6B838K0.09%Q2 2026
09
Capital World Investors
CIK 0001422849
$1.4B720K0.17%Q2 2026
10
Invesco Ltd.
CIK 0000914208
$1.3B658K0.10%Q2 2026
11
NORGES BANK
CIK 0001374170· Sovereign
$935M472K0.09%Q2 2026
12
MORGAN STANLEY
CIK 0000895421
$852M430K0.05%Q2 2026
13
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$743M375K0.44%Q2 2026
14
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$709M358K0.06%Q2 2026
15
WESTFIELD CAPITAL MANAGEMENT CO LP
CIK 0001177719
$704M355K2.30%Q2 2026
16
FEDERATED HERMES, INC.
CIK 0001056288
$677M341K0.97%Q2 2026
17
NORTHERN TRUST CORP
CIK 0000073124· Index
$676M341K0.08%Q2 2026
18
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$590M298K0.08%Q2 2026
19
Amundi
CIK 0001330387
$581M293K0.14%Q2 2026
20
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$566M285K0.10%Q2 2026
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1375 more holders available. Log in →
Insiders at COMFORT SYS USA INC
Lane Brian E.George William IiiMyers FranklinAnderson DarcyTrent T MckennaReed TerrenceShaeff JulieEslicker Rachel R.