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

Historic Insider Ownership Trends

CTOS's three largest insider shareholders as of March 23, 2026 are One Source Holdings, Llc Pe (TenPercentOwner, 156.74Mn shares), Equity, Llc Platinum (TenPercentOwner, 156.74Mn shares), Holdings, Lp Nesco (TenPercentOwner, 23.38Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
One Source Holdings, Llc Pe 0 156,743,635 03 Feb, 2025
Equity, Llc Platinum 0 156,743,635 03 Feb, 2025
Controlco, Llc Ecp 0 23,384,879 09 Sep, 2024
Holdings, Lp Nesco 0 23,384,879 09 Sep, 2024
Fredrick M. Jr. Ross Chief Executive Officer 0 2,000,000 05 Apr, 2021
Mark Ein 1,585,707 0 02 Apr, 2025
Ryan Mcmonagle Chief Executive Officer 588,723 0 03 Apr, 2025
Fredrick M. Jr. Ross 404,987 0 03 Apr, 2025
Marshall Heinberg 352,202 0 02 Apr, 2025
Joe P. Ross President Sales 311,485 0 03 Apr, 2025
Thomas R. Rich President Rentals 286,377 0 03 Apr, 2025
Joe P. Ross President Sales 0 282,449 05 Apr, 2021
Christopher J Eperjesy Chief Financial Officer 206,578 0 03 Apr, 2025
Marshall Heinberg 0 120,000 14 Nov, 2023
Adam G. Haubenreich Vp And General Counsel 111,746 0 04 Apr, 2023
Georgia R Nelson 105,804 0 02 Apr, 2025
Paul Bader 93,804 0 02 Apr, 2025
James Carlsen Cio 80,320 0 03 Apr, 2024
Brad Meader Chief Financial Officer 75,336 0 05 Apr, 2022
Mary M. Jackson 55,173 0 02 Apr, 2025
Raymond Todd Barrett Chief Accounting Officer 51,338 0 03 Apr, 2025
Paul M Jolas Evp, Gen. Counsel Secretary 33,719 0 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
28 Apr, 2025 Christopher J Eperjesy Restricted Stock Unit A 90,000 $0.00 90,000 D A
28 Apr, 2025 Ryan Mcmonagle Restricted Stock Unit A 162,500 $0.00 162,500 D A
28 Apr, 2025 Joe P. Ross Restricted Stock Unit A 100,000 $0.00 100,000 D A
28 Apr, 2025 Thomas R. Rich Restricted Stock Unit A 100,000 $0.00 100,000 D A
28 Apr, 2025 Raymond Todd Barrett Restricted Stock Unit A 25,000 $0.00 25,000 D A
28 Apr, 2025 Fredrick M. Jr. Ross Restricted Stock Unit A 175,000 $0.00 175,000 D A
28 Apr, 2025 Paul M Jolas Restricted Stock Unit A 67,500 $0.00 67,500 D A
01 Apr, 2025 Fredrick M. Jr. Ross Common Stock A 175,000 $0.00 457,575 D M
01 Apr, 2025 Raymond Todd Barrett Common Stock A 15,000 $0.00 56,237 D M
01 Apr, 2025 Paul M Jolas Common Stock A 33,750 $0.00 47,679 D M
01 Apr, 2025 Joe P. Ross Common Stock A 100,000 $0.00 356,998 D M
01 Apr, 2025 Ryan Mcmonagle Common Stock A 162,500 $0.00 661,931 D M
01 Apr, 2025 Thomas R. Rich Common Stock A 100,000 $0.00 331,942 D M
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 Thomas R. Rich Common Stock D 45,565 $4.20 286,377 D F
01 Apr, 2025 Joe P. Ross Common Stock D 45,513 $4.20 311,485 D F
01 Apr, 2025 Ryan Mcmonagle Common Stock D 73,208 $4.20 588,723 D F
01 Apr, 2025 Fredrick M. Jr. Ross Common Stock D 52,588 $4.20 404,987 D F