CTOSCustom Truck One Source, Inc.

$9.26+60% 1Y

Who owns CTOS

185 institutions reported holding CTOS for 2026Q2, together 98% of the company, more than the 174 a quarter earlier.

185

Institutions reporting a position · as of 2026Q2 · up from 174 the quarter before

Shares held by institutions
222.5M

Shares held by institutions · 98% of the company · long US equity positions only, as reported on Form 13F

Reported value
$2.63B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
79%

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

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
21
New positions
35
Positions exited
24
Added to
72
Reduced
51
Top 10 holdersof the company
85%
Shares sold shortsettled Sep 15, 2026
4.7M
Short interestof shares outstanding
2.1%
Days to coverat the average daily volume
4.2
Change in the short positionsince the Aug 31, 2026 count
+5.4%
Institutional ownership by quarter, 2021Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q2185222.5M$2.63B
2026Q1174219.0M$1.44B
2025Q4156216.6M$1.25B
2025Q3145215.2M$1.38B
2025Q2129216.5M$1.07B
2025Q1141213.6M$899M
2024Q4125222.1M$1.07B
2024Q3121219.8M$759M
2024Q2112219.6M$957M
2024Q1118214.3M$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
Largest reported holders, 2026Q2
HolderShares% of companyValue
Platinum Equity Advisors, LLC/DE156.7M69%$1.85B
DIMENSIONAL FUND ADVISORS LP6.2M2.7%$73M
Mirae Asset Global Investments Co., Ltd.6.2M2.7%$73M
Canvas Wealth Advisors, LLC6.0M2.6%$71M
BlackRock Inc.4.6M2.0%$54M
VANGUARD GROUP INC4.1M1.8%$48M
WELLS FARGO & COMPANY/MN2.8M1.2%$31M
ARROWSTREET CAPITAL LIMITED PARTNERSHIP2.2M0.97%$26M
GOLDMAN SACHS GROUP INC1.9M0.83%$22M
GEODE CAPITAL MANAGEMENT LLC1.7M0.76%$20M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20264.7M2.1%4.2
Aug 31, 20264.4M2.0%5.9
Aug 14, 20263.6M1.6%3.1
Jul 31, 20263.5M1.5%3.0
Jul 15, 20263.3M1.4%3.2
Jun 30, 20263.0M1.3%2.4
Jun 15, 20262.5M1.1%2.9
May 29, 20262.1M0.92%2.6
May 15, 20262.1M0.91%1.6
Apr 30, 20261.7M0.76%1.3
Apr 15, 20262.2M0.98%3.0
Mar 31, 20262.0M0.87%2.6

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. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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