CTOS SEC Filings: 8-K, 10-Q, S-3 & 424B

Financials

TYPE

HEADLINE

FILED AT

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Oct 26, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 3, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Apr 27, 2026

10-K

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Mar 10, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Oct 27, 2025

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Jul 30, 2025

News

TYPE

HEADLINE

FILED AT

8-K

Custom Truck One Source Reports Record Q3 2026 Results and Raises Full Year Guidance

Oct 26, 2026

8-K

Custom Truck One Source Reports Record Q2 2026 Results and Raises Full-Year Guidance

Aug 3, 2026

8-K

Custom Truck One Source, Inc. Announces Results of 2026 Annual Meeting of Stockholders

Jun 11, 2026

8-K

Custom Truck One Source Reports Record Q1 2026 Results and Increases Full-Year Adjusted EBITDA Guidance

Apr 27, 2026

8-K

Custom Truck One Source to Host Webinar Regarding Segment Reporting Realignment

Mar 25, 2026

8-K

Custom Truck One Source Reports Record 2025 Revenue and Fourth Quarter Adjusted EBITDA Growth

Mar 10, 2026

Prospectus

TYPE

HEADLINE

FILED AT

424B7

Form 424B7 - Prospectus [Rule 424(b)(7)]

Nov 19, 2021

424B7

Form 424B7 - Prospectus [Rule 424(b)(7)]

Nov 15, 2021

425

Form 425 - Prospectuses and communications, business combinations

Jul 22, 2019

425

Form 425 - Prospectuses and communications, business combinations

Jul 17, 2019

425

Form 425 - Prospectuses and communications, business combinations

Jul 11, 2019

424B3

Form 424B3 - Prospectus [Rule 424(b)(3)]

Jul 11, 2019

Registrations

TYPE

HEADLINE

FILED AT

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

May 7, 2024

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

Aug 19, 2022

S-3/A

207,745,626 Shares of Common Stock- EFFECTIVE

Sep 23, 2021

S-3

59,145,626 Shares of Common Stock- EFFECTIVE

Sep 22, 2021

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

Jun 4, 2021

S-3

41,416,667 Shares of Common Stock- EFFECTIVE

May 6, 2021

Proxies

TYPE

HEADLINE

FILED AT

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Apr 28, 2026

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 28, 2026

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Apr 28, 2025

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 28, 2025

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Apr 26, 2024

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 26, 2024

Ownerships

TYPE

HEADLINE

FILED AT

Other

TYPE

HEADLINE

FILED AT

LETTER

Form UPLOAD - SEC-generated letter

Apr 3, 2025

CORRESP

Form CORRESP - Correspondence

Dec 12, 2024

LETTER

Form UPLOAD - SEC-generated letter

Nov 26, 2024

CORRESP

Form CORRESP - Correspondence

Aug 16, 2024

CORRESP

Form CORRESP - Correspondence

Aug 2, 2024

LETTER

Form UPLOAD - SEC-generated letter

Jul 18, 2024

Custom Truck One Source, Inc. CTOS · SEC Filings