Based on data from the past 90 days ending February 19, 2026, Custom Truck One Source's three largest insider shareholders are TenPercentOwner One Source Holdings, Llc Pe (156.74Mn shares), TenPercentOwner Equity, Llc Platinum (156.74Mn shares), TenPercentOwner Holdings, Lp Nesco (23.38Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Equity, Llc Platinum | 156,743,635 | 03 Feb, 2025 | |
| One Source Holdings, Llc Pe | 156,743,635 | 03 Feb, 2025 | |
| Holdings, Lp Nesco | 23,384,879 | 09 Sep, 2024 | |
| Controlco, Llc Ecp | 23,384,879 | 09 Sep, 2024 | |
| Fredrick M. Jr. Ross | 2,404,987 | 03 Apr, 2025 | |
| Mark Ein | 1,585,707 | 02 Apr, 2025 | |
| Joe P. Ross | President Sales | 593,934 | 03 Apr, 2025 |
| Ryan Mcmonagle | Chief Executive Officer | 588,723 | 03 Apr, 2025 |
| Marshall Heinberg | 472,202 | 02 Apr, 2025 | |
| Thomas R. Rich | President Rentals | 286,377 | 03 Apr, 2025 |
| Christopher J Eperjesy | Chief Financial Officer | 206,578 | 03 Apr, 2025 |
| Adam G. Haubenreich | Vp And General Counsel | 111,746 | 04 Apr, 2023 |
| Georgia R Nelson | 105,804 | 02 Apr, 2025 | |
| Paul Bader | 93,804 | 02 Apr, 2025 | |
| James Carlsen | Cio | 80,320 | 03 Apr, 2024 |
| Brad Meader | Chief Financial Officer | 75,336 | 05 Apr, 2022 |
| Mary M. Jackson | 55,173 | 02 Apr, 2025 | |
| Raymond Todd Barrett | Chief Accounting Officer | 51,338 | 03 Apr, 2025 |
| Paul M Jolas | Evp And Gen. Counsel & Secretary | 33,719 | 03 Apr, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 17 Oct, 2025 | Mark Ein | Common Stock | D | 3,670,279 | $0.00 | 0 | I | J |
| 01 Apr, 2025 | Christopher J Eperjesy | Common Stock | D | 30,537 | $4.20 | 206,578 | D | F |
| 01 Apr, 2025 | Christopher J Eperjesy | Common Stock | A | 67,500 | $0.00 | 237,115 | D | M |
| 01 Apr, 2025 | Paul M Jolas | Common Stock | D | 13,960 | $4.20 | 33,719 | D | F |
| 01 Apr, 2025 | Paul M Jolas | Common Stock | A | 33,750 | $0.00 | 47,679 | D | M |
| 01 Apr, 2025 | Raymond Todd Barrett | Common Stock | D | 4,899 | $4.20 | 51,338 | D | F |
| 01 Apr, 2025 | Raymond Todd Barrett | Common Stock | A | 15,000 | $0.00 | 56,237 | D | M |
| 01 Apr, 2025 | Fredrick M. Jr. Ross | Common Stock | A | 175,000 | $0.00 | 457,575 | D | M |
| 01 Apr, 2025 | Fredrick M. Jr. Ross | - | - | 404,987 | D | |||
| 01 Apr, 2025 | Fredrick M. Jr. Ross | Common Stock | D | 52,588 | $4.20 | 404,987 | D | F |
| 01 Apr, 2025 | Fredrick M. Jr. Ross | - | - | 457,575 | D | |||
| 01 Apr, 2025 | Ryan Mcmonagle | Common Stock | A | 162,500 | $0.00 | 661,931 | D | M |
| 01 Apr, 2025 | Ryan Mcmonagle | Common Stock | D | 73,208 | $4.20 | 588,723 | D | F |
| 01 Apr, 2025 | Joe P. Ross | Common Stock | D | 45,513 | $4.20 | 311,485 | D | F |
| 01 Apr, 2025 | Joe P. Ross | Common Stock | A | 100,000 | $0.00 | 356,998 | D | M |
| 01 Apr, 2025 | Thomas R. Rich | Common Stock | D | 45,565 | $4.20 | 286,377 | D | F |
| 01 Apr, 2025 | Thomas R. Rich | Common Stock | A | 100,000 | $0.00 | 331,942 | D | M |
| 31 Mar, 2025 | Georgia R Nelson | Common Stock | A | 22,218 | $0.00 | 105,804 | D | M |
| 31 Mar, 2025 | Georgia R Nelson | - | - | 105,804 | D | |||
| 31 Mar, 2025 | Mark Ein | Common Stock | A | 22,218 | $0.00 | 1,585,707 | D | M |