Custom Truck One Source Inc
Ownership
Ownership Structure
Who owns Custom Truck One Source Inc (CTOS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 26.4% of the shares are freely tradable; institutional investors hold 97.0%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Platinum Equity Advisors, LLC/DE | 68.90 | 156,743,635 | +0.0 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 2.71 | 6,172,555 | +10.2 | 06/30/2026 |
| Canvas Wealth Advisors, LLC | 2.63 | 5,982,649 | -14.8 | 06/30/2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 2.49 | 5,674,918 | +4.3 | 03/31/2026 |
| BlackRock Inc | 1.87 | 4,252,972 | -1.4 | 03/31/2026 |
| Alyeska Investment Group, L.P. | 1.24 | 2,825,820 | +13.0 | 03/31/2026 |
| Allspring Global Investments Holdings, LLC | 1.18 | 2,692,878 | -31.2 | 06/30/2026 |
| Vanguard Capital Management, LLC | 1.11 | 2,525,744 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Global X US Infrastructure Dev ETF | 1.72 | 3,912,561 | +0.0 | 08/31/2026 |
| Allspring Special Small Cap Value A | 0.83 | 1,897,300 | -2.3 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.