CTOS's three largest insider shareholders as of August 27, 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).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Equity, Llc Platinum | TenPercentOwner | 0 | 156,743,635 | 156,743,635 | 46.1% | 03 Feb, 2025 |
| 2 | One Source Holdings, Llc Pe | TenPercentOwner | 0 | 156,743,635 | 156,743,635 | 46.1% | 03 Feb, 2025 |
| 3 | Holdings, Lp Nesco | TenPercentOwner | 0 | 23,384,879 | 23,384,879 | 6.9% | 09 Sep, 2024 |
| 4 | Ryan Mcmonagle | Chief Executive Officer | 695,984 | 0 | 695,984 | 0.2% | 03 Apr, 2026 |
| 5 | Fredrick M. Jr. Ross | Chief Executive Officer | 540,188 | 0 | 540,188 | 0.2% | 03 Apr, 2026 |
| 6 | Marshall A Heinberg | Director | 400,548 | 0 | 400,548 | 0.1% | 02 Apr, 2026 |
| 7 | Joe P. Ross | President Sales | 377,493 | 0 | 377,493 | 0.1% | 03 Apr, 2026 |
| 8 | Thomas R. Rich | President Rentals | 363,635 | 0 | 363,635 | 0.1% | 03 Apr, 2026 |
| 9 | Georgia R Nelson | Director | 132,663 | 0 | 132,663 | 0.0% | 02 Apr, 2026 |
| 10 | Paul T Bader | Director | 120,663 | 0 | 120,663 | 0.0% | 02 Apr, 2026 |
| 11 | Adam G. Haubenreich | Vp And General Counsel | 111,746 | 0 | 111,746 | 0.0% | 04 Apr, 2023 |
| 12 | James Carlsen | Cio | 80,320 | 0 | 80,320 | 0.0% | 03 Apr, 2024 |
| 13 | Brad Meader | Chief Financial Officer | 75,336 | 0 | 75,336 | 0.0% | 05 Apr, 2022 |
| 14 | Raymond Todd Barrett | Chief Accounting Officer | 51,338 | 0 | 51,338 | 0.0% | 03 Apr, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 01 Apr, 2026 | Joe P. Ross | President Sales | Acquired M | 75,000 | $0.00 | $0 | 411,281 | Direct |
| 01 Apr, 2026 | Thomas R. Rich | President Rentals | Acquired M | 75,000 | $0.00 | $0 | 386,173 | Direct |
| 01 Apr, 2026 | Joe P. Ross | President Sales | Acquired M | 75,000 | $0.00 | $0 | 411,281 | Direct |
| 01 Apr, 2026 | Fredrick M. Jr. Ross | Director | Acquired M | 131,250 | $0.00 | $0 | 579,629 | Direct |
| 01 Apr, 2026 | Ryan Mcmonagle | Chief Executive Officer | Acquired M | 121,875 | $0.00 | $0 | 750,890 | Direct |
| 01 Apr, 2026 | Fredrick M. Jr. Ross | Director | Acquired M | 131,250 | $0.00 | $0 | 579,629 | Direct |
| 01 Apr, 2026 | Thomas R. Rich | President Rentals | Acquired M | 75,000 | $0.00 | $0 | 386,173 | Direct |
| 01 Apr, 2026 | Ryan Mcmonagle | Chief Executive Officer | Acquired M | 121,875 | $0.00 | $0 | 750,890 | Direct |
| 01 Apr, 2026 | Christopher J Eperjesy | Chief Financial Officer | Acquired M | 90,000 | $0.00 | $0 | 324,473 | Direct |
| 01 Apr, 2026 | Fredrick M. Jr. Ross | Director | Acquired M | 131,250 | $0.00 | $0 | 579,629 | Direct |
| 01 Apr, 2026 | Ryan Mcmonagle | Chief Executive Officer | Acquired M | 121,875 | $0.00 | $0 | 750,890 | Direct |
| 01 Apr, 2026 | Joe P. Ross | President Sales | Acquired M | 75,000 | $0.00 | $0 | 411,281 | Direct |
| 01 Apr, 2026 | Thomas R. Rich | President Rentals | Acquired M | 75,000 | $0.00 | $0 | 386,173 | Direct |
| 01 Apr, 2026 | Joe P. Ross | President Sales | Disposed F | 33,788 | $6.62 | $223.68K | 377,493 | Direct |
| 01 Apr, 2026 | Ryan Mcmonagle | Chief Executive Officer | Disposed F | 54,906 | $6.62 | $363.48K | 695,984 | Direct |
| 01 Apr, 2026 | Joe P. Ross | President Sales | Disposed F | 33,788 | $6.62 | $223.68K | 377,493 | Direct |
| 01 Apr, 2026 | Christopher J Eperjesy | Chief Financial Officer | Disposed F | 40,547 | $6.62 | $268.42K | 283,926 | Direct |
| 01 Apr, 2026 | Thomas R. Rich | President Rentals | Disposed F | 22,538 | $6.62 | $149.20K | 363,635 | Direct |
| 01 Apr, 2026 | Thomas R. Rich | President Rentals | Disposed F | 22,538 | $6.62 | $149.20K | 363,635 | Direct |
| 01 Apr, 2026 | Fredrick M. Jr. Ross | Director | Disposed F | 39,441 | $6.62 | $261.10K | 540,188 | Direct |