Custom Truck One Source, Inc. (CTOS) Insider Ownership

Historic Insider Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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