13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Services-Equipment Rental & Leasing, NECHigh-convictionMulti-bagger
CTOS

CUSTOM TRUCK ONE SOURCE INC

172 institutions still hold CUSTOM TRUCK ONE SOURCE INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 23204X103·Services-Equipment Rental & Leasing, NEC·172 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 0.6%
vs prior quarter
13F value held
$1.3B
58.0% inst. owned
of float
Holders
172
-110 QoQ
filers reporting
Activity
+92 / −86
+1,002 added · −788 reduced
this quarter
Concentration
77.56%
Platinum Equity Advisors, LLC/DE #1
top holder share
AI Holders Summary · Q1 2026

172 institutions reported CTOS in Q1 2026. Platinum Equity Advisors, LLC/DE leads at 77.6% of the visible book. -110 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
Platinum Equity Advisors, LLC/DE
CIK 0001803274
$1.0B156.7M11.60%Q1 202602
Canvas Wealth Advisors, LLC
CIK 0001858782
$46M7.0M7.84%Q1 202603
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
CIK 0001705339
$37M5.7M0.05%Q1 202604
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$37M5.6M0.01%Q1 202605
BlackRock, Inc.
CIK 0002012383
$28M4.3M0.00%Q1 202606
Allspring Global Investments Holdings, LLC
CIK 0001890906
$26M3.9M0.04%Q1 202607
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$17M2.5M0.00%Q1 202608
Alyeska Investment Group, L.P.
CIK 0001453072
$14M2.5M0.04%Q4 202509
Boston Partners
CIK 0001386060
$13M2.0M0.01%Q1 202610
STATE STREET CORP
CIK 0000093751
$10M1.5M0.00%Q1 202611
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$10M1.5M0.00%Q1 202612
Clearbridge Investments, LLC
CIK 0001348883
$9M1.4M0.01%Q1 202613
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$9M1.3M0.01%Q1 202614
BANK OF AMERICA CORP /DE/
CIK 0000070858
$8M1.2M0.00%Q1 202615
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$7M1.1M0.00%Q1 202616
MORGAN STANLEY
CIK 0000895421
$6M898K0.00%Q1 202617
Intrinsic Edge Capital Management LLC
CIK 0001671754
$6M880K0.96%Q1 202618
BRIDGEWAY CAPITAL MANAGEMENT, LLC
CIK 0001107261
$6M845K0.11%Q1 202619
Empowered Funds, LLC
CIK 0001592828
$5M810K0.03%Q1 202620
First Eagle Investment Management, LLC
CIK 0001325447
$5M766K0.01%Q1 2026
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