DOSSIER · 13F Holders · Q1 2026Technology · Services-Equipment Rental & Leasing, NEC
CTOS

CUSTOM TRUCK ONE SOURCE INC

171 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·171 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$1.4B
visible holders
Holders
171
filers reporting
Concentration
76.16%
Platinum Equity Advisors, LLC/DE #1
top holder share
AI Holders Summary · Q1 2026

171 institutions reported CTOS in Q1 2026. Platinum Equity Advisors, LLC/DE leads at 76.2% of the visible book.

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 2026
02
Canvas Wealth Advisors, LLC
CIK 0001858782
$71M6.0M9.86%Q2 2026
03
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
CIK 0001705339
$37M5.7M0.05%Q1 2026
04
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$37M5.6M0.01%Q1 2026
05
BlackRock, Inc.
CIK 0002012383
$28M4.3M0.00%Q1 2026
06
Allspring Global Investments Holdings, LLC
CIK 0001890906
$26M3.9M0.04%Q1 2026
07
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$17M2.5M0.00%Q1 2026
08
Alyeska Investment Group, L.P.
CIK 0001453072
$14M2.5M0.04%Q4 2025
09
Boston Partners
CIK 0001386060
$13M2.0M0.01%Q1 2026
10
STATE STREET CORP
CIK 0000093751
$10M1.5M0.00%Q1 2026
11
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$10M1.5M0.00%Q1 2026
12
Clearbridge Investments, LLC
CIK 0001348883
$9M1.4M0.01%Q1 2026
13
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$9M1.3M0.01%Q1 2026
14
BANK OF AMERICA CORP /DE/
CIK 0000070858
$8M1.2M0.00%Q1 2026
15
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$7M1.1M0.00%Q1 2026
16
MORGAN STANLEY
CIK 0000895421
$6M898K0.00%Q1 2026
17
Intrinsic Edge Capital Management LLC
CIK 0001671754
$6M880K0.96%Q1 2026
18
BRIDGEWAY CAPITAL MANAGEMENT, LLC
CIK 0001107261
$6M845K0.11%Q1 2026
19
Empowered Funds, LLC
CIK 0001592828
$5M810K0.03%Q1 2026
20
First Eagle Investment Management, LLC
CIK 0001325447
$5M766K0.01%Q1 2026
Page 1 of 9
151 more holders available. Log in →
Insiders at CUSTOM TRUCK ONE SOURCE INC
Jackson Mary M.Rich Thomas R.Ross Joe P.Mcmonagle RyanRoss Fredrick M. Jr.Bader Paul TEperjesy Christopher JJolas Paul M