Latest Period
Q4 2025
Security Snapshot
Custom Truck One Source, Inc. - Common Stock (CTOS) Institutional Ownership
CUSIP: 23204X103
13F Institutional Holders and Ownership History from Q4 2020 to Q1 2026
Institutions Reporting
154
Shares (Excl. Options)
216,562,618
Price
$5.76
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- Type / Class
- Equity / Common Stock
- Symbol
- CTOS on NYSE
- Shares outstanding
- 225,206,372
- Price per share
- $7.36
- All holders as of 31 Dec 2025
- Q4 2025
- Total 13F shares
- 216,562,618
- Total reported value
- $1,247,580,823
- % of total 13F portfolios
- 0%
- Share change
- +1,220,580
- Value change
- +$6,231,111
- Number of holders
- 154
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Quick Takeaways
- CTOS - Custom Truck One Source, Inc. - Common Stock is tracked under CUSIP 23204X103.
- 154 institutions reported positions in Q4 2025.
- 1 significant owner is listed from Schedule 13D/13G reporting.
What Changed
- Holder count moved from 154 to 74 between Q4 2025 and Q1 2026.
- Reported value moved from $1,247,580,823 to $184,160,799.
Why This Matters
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Source Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 154 institutions filings for Q4 2025.
Investment Quick Answers
What is CUSIP 23204X103?
CUSIP 23204X103 identifies CTOS - Custom Truck One Source, Inc. - Common Stock in SEC 13F datasets.
Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.
Next ownership checks
Use the next link that matches the question you still need to answer about this security.
- Latest 13F filings when you want to inspect fresh institutional portfolio moves.
- Latest Schedule 13D/13G reports when you need large-owner changes outside the 13F cycle.
- All institutional ownership pages to compare this security with other holder-history pages.
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 23204X103:
Significant Owners of Custom Truck One Source, Inc. - Common Stock (CTOS) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| PLATINUM EQUITY, LLC | 70% | $663,025,576 | 156,743,635 | Platinum Equity Capital Partners V, L.P. | 30 Jan 2025 |
As of 31 Dec 2025, 154 institutional investors reported holding 216,562,618 shares of Custom Truck One Source, Inc. - Common Stock (CTOS). This represents 96% of the company’s total 225,206,372 outstanding shares.
Top 25 Institutional Shareholders
The largest institutional shareholders of Custom Truck One Source, Inc. - Common Stock (CTOS) together control 92% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Platinum Equity Advisors, LLC/DE | 70% | 156,743,635 | 0% | 11% | $902,843,338 |
| Canvas Wealth Advisors, LLC | 3.1% | 7,050,221 | +49% | 6.9% | $40,609,273 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 2.4% | 5,442,562 | +2.5% | 0.05% | $31,349,374 |
| DIMENSIONAL FUND ADVISORS LP | 2.2% | 4,860,981 | +11% | 0.01% | $27,999,835 |
| BlackRock, Inc. | 1.9% | 4,312,778 | +1.8% | 0% | $24,841,601 |
| Allspring Global Investments Holdings, LLC | 1.9% | 4,201,414 | -4.3% | 0.04% | $24,368,201 |
| Boston Partners | 1.7% | 3,793,597 | -31% | 0.02% | $21,854,856 |
| VANGUARD GROUP INC | 1.5% | 3,466,621 | +5.8% | 0% | $19,967,736 |
| Alyeska Investment Group, L.P. | 1.1% | 2,500,229 | +43% | 0.04% | $14,401,319 |
| BANK OF AMERICA CORP /DE/ | 0.66% | 1,480,130 | -18% | 0% | $8,525,549 |
| Clearbridge Investments, LLC | 0.64% | 1,445,138 | -7.6% | 0.01% | $8,323,992 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.64% | 1,439,148 | +2.2% | 0% | $8,290,852 |
| STATE STREET CORP | 0.6% | 1,354,815 | +6.4% | 0% | $7,803,734 |
| FIRST TRUST ADVISORS LP | 0.54% | 1,222,875 | +222% | 0.01% | $7,043,760 |
| Russell Investments Group, Ltd. | 0.42% | 939,076 | -14% | 0.01% | $5,409,077 |
| ACK Asset Management LLC | 0.36% | 800,136 | -58% | 0.58% | $4,608,783 |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC | 0.35% | 779,622 | +95% | 0.87% | $4,490,623 |
| First Eagle Investment Management, LLC | 0.35% | 777,936 | +0.45% | 0.01% | $4,480,911 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.34% | 772,180 | +117% | 0.09% | $4,447,757 |
| Empowered Funds, LLC | 0.33% | 737,180 | +130% | 0.07% | $4,246,157 |
| MORGAN STANLEY | 0.32% | 714,693 | -1.1% | 0% | $4,116,632 |
| HEARTLAND ADVISORS INC | 0.31% | 700,000 | 0% | 0.22% | $4,032,000 |
| T. Rowe Price Investment Management, Inc. | 0.25% | 566,132 | -76% | 0% | $3,261,000 |
| CITIGROUP INC | 0.23% | 521,357 | +31% | 0% | $3,003,017 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.22% | 504,884 | -0.07% | 0% | $2,908,132 |
Institutional Holders of Custom Truck One Source, Inc. - Common Stock (CTOS) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 28,002,983 | $184,160,799 | -$8,698,110 | $6.57 | 74 |
| 2025 Q4 | 216,562,618 | $1,247,580,823 | +$6,231,111 | $5.76 | 154 |
| 2025 Q3 | 215,269,670 | $1,382,888,450 | -$7,929,178 | $6.42 | 144 |
| 2025 Q2 | 216,483,021 | $1,074,075,176 | +$17,304,870 | $4.94 | 127 |
| 2025 Q1 | 213,501,112 | $899,208,569 | -$46,917,753 | $4.22 | 139 |
| 2024 Q4 | 222,112,012 | $1,068,496,111 | +$11,323,945 | $4.81 | 123 |
| 2024 Q3 | 219,810,983 | $759,214,085 | -$444,845 | $3.45 | 118 |
| 2024 Q2 | 219,579,194 | $957,403,151 | -$192,684 | $4.35 | 110 |
| 2024 Q1 | 214,434,793 | $1,247,467,486 | -$7,879,301 | $5.82 | 117 |
| 2023 Q4 | 216,363,233 | $1,337,331,808 | -$19,883,559 | $6.18 | 114 |
| 2023 Q3 | 222,517,622 | $1,391,307,130 | -$24,734,082 | $6.20 | 109 |
| 2023 Q2 | 226,401,600 | $1,526,207,894 | +$554,041 | $6.74 | 106 |
| 2023 Q1 | 226,326,828 | $1,535,313,082 | -$9,241,020 | $6.79 | 99 |
| 2022 Q4 | 227,629,618 | $1,440,134,599 | -$7,397,794 | $6.32 | 84 |
| 2022 Q3 | 228,829,401 | $1,336,834,571 | -$1,541,635 | $5.83 | 83 |
| 2022 Q2 | 229,126,187 | $1,282,672,504 | -$3,214,032 | $5.60 | 84 |
| 2022 Q1 | 226,262,158 | $1,898,862,492 | +$22,509,199 | $8.39 | 79 |
| 2021 Q4 | 223,696,427 | $1,789,572,624 | -$3,955,410 | $8.00 | 83 |
| 2021 Q3 | 217,984,583 | $2,033,796,280 | +$46,781,111 | $9.33 | 69 |
| 2021 Q2 | 212,925,451 | $2,027,053,000 | +$2,026,335,000 | $9.52 | 69 |
| 2021 Q1 | 76,819 | $718,000 | +$717,000 | $7.92 | 2 |
| 2020 Q4 | 154 | $1,000 | $6.49 | 1 |