CTOSCustom Truck One Source, Inc.

$9.59

Who owns CTOS

169 institutions reported holding CTOS for 2026Q1, together 97% of the company, more than the 155 a quarter earlier.

169

Institutions reporting a position · as of 2026Q1 · up from 155 the quarter before

Shares held by institutions
218.8M

Shares held by institutions · 97% of the company · long US equity positions only, as reported on Form 13F

Reported value
$1.44B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
79%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
20
New positions
37
Positions exited
28
Added to
58
Reduced
43
Top 10 holdersof the company
85%
Institutional ownership by quarter, 2021Q2 to 2026Q1
QuarterFilersSharesReported value
2026Q1169218.8M$1.44B
2025Q4155216.6M$1.25B
2025Q3144215.2M$1.38B
2025Q2128216.5M$1.07B
2025Q1140213.6M$899M
2024Q4124222.1M$1.07B
2024Q3120219.8M$759M
2024Q2111219.5M$957M
2024Q1117214.3M$1.25B
2023Q4114216.3M$1.34B
2023Q3109222.5M$1.39B
2023Q2106226.3M$1.53B
2023Q1100226.3M$1.53B
2022Q485227.6M$1.45B
2022Q387228.8M$1.34B
2022Q289229.1M$1.28B
Largest reported holders, 2026Q1
HolderShares% of companyValue
Platinum Equity Advisors, LLC/DE156.7M69%$1.03B
Canvas Wealth Advisors, LLC7.0M3.1%$46M
Mirae Asset Global Investments Co., Ltd.5.7M2.5%$37M
DIMENSIONAL FUND ADVISORS LP5.6M2.5%$37M
BlackRock Inc.4.3M1.9%$28M
WELLS FARGO & COMPANY/MN4.0M1.7%$26M
VANGUARD GROUP INC3.5M1.6%$23M
Alyeska Investment Group, L.P.2.8M1.2%$19M
Robeco Investment Management, Inc.2.0M0.89%$13M
STATE STREET CORP1.5M0.66%$9.8M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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