Workhorse Group Inc. SEC EDGAR Filings (CIK 0001425287)

SEC EDGAR filings, ownership reports, and insider transactions for Workhorse Group Inc..

Symbol
WKHS on Nasdaq
Business address
48443 Alpha Drive #190, Wixom, MI, 48393
Top holdings (ownership)
WKHS
State of incorporation
NV
Fiscal year end
31 December
Former names
AMP Holding Inc. (to 08 Apr 2015), Title Starts Online, Inc. (to 25 May 2010)
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Workhorse Group Inc. has filed 1,087 SEC EDGAR filings since 04 Feb 2008

Latest Filings

Recent SEC filings for Workhorse Group Inc. including 3/A, 8-K, 144 and more.

Form type Document Filing Description Filing date Reporting date File number(s)
3/A Open 3/A document View SEC filing for 3/A 3/A 22 Jan 2026 15 Dec 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Jan 2026 14 Jan 2026 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Jan 2026 06 Jan 2026 001-37673
144 Open 144 document View SEC filing for 144 30 Dec 2025 001-37673
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 29 Dec 2025 15 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 17 Dec 2025 15 Dec 2025
SCHEDULE 13D Open SCHEDULE 13D document View SEC filing for SCHEDULE 13D 16 Dec 2025 005-85176
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2025 15 Dec 2025
3 Open 3 document View SEC filing for 3 FORM 3 15 Dec 2025 15 Dec 2025
3 Open 3 document View SEC filing for 3 FORM 3 15 Dec 2025 15 Dec 2025
3 Open 3 document View SEC filing for 3 FORM 3 15 Dec 2025 15 Dec 2025
3 Open 3 document View SEC filing for 3 FORM 3 15 Dec 2025 15 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2025 15 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2025 15 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2025 15 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2025 15 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2025 15 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2025 15 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2025 15 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2025 15 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2025 15 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2025 15 Dec 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 15 Dec 2025 15 Dec 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 12 Dec 2025 08 Dec 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 03 Dec 2025 03 Dec 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 25 Nov 2025 25 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 18 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 18 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 14 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 13 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A CURRENT REPORT 12 Nov 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 12 Nov 2025 12 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 12 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A CURRENT REPORT 10 Nov 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 10 Nov 2025 10 Nov 2025 001-37673
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 Nov 2025 30 Sep 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 10 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 07 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 06 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 06 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 06 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 04 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 04 Nov 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 31 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 30 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 30 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 30 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 23 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 23 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 23 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 20 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 20 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 20 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 16 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 16 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 16 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 09 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 08 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 08 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 08 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 08 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 08 Oct 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 08 Oct 2025 001-37673
ARS Open ARS document View SEC filing for ARS FORM ARS 08 Oct 2025 31 Dec 2024 001-37673
DEFM14A Open DEFM14A document | Open XBRL data View SEC filing for DEFM14A PROXY STATEMENT 08 Oct 2025 001-37673
PRER14A Open PRER14A document | Open XBRL data View SEC filing for PRER14A PROXY STATEMENT 30 Sep 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 23 Sep 2025 001-37673
PREM14A Open PREM14A document | Open XBRL data View SEC filing for PREM14A PRELIMINARY PROXY STATEMENT 22 Sep 2025 22 Sep 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 28 Aug 2025 001-37673
4 Open 4 document View SEC filing for 4 FORM 4 21 Aug 2025 18 Aug 2025
4 Open 4 document View SEC filing for 4 FORM 4 20 Aug 2025 18 Aug 2025
4 Open 4 document View SEC filing for 4 FORM 4 20 Aug 2025 18 Aug 2025
4 Open 4 document View SEC filing for 4 FORM 4 20 Aug 2025 18 Aug 2025
4 Open 4 document View SEC filing for 4 FORM 4 20 Aug 2025 18 Aug 2025
4 Open 4 document View SEC filing for 4 FORM 4 20 Aug 2025 18 Aug 2025
4 Open 4 document View SEC filing for 4 FORM 4 20 Aug 2025 18 Aug 2025
4 Open 4 document View SEC filing for 4 FORM 4 20 Aug 2025 18 Aug 2025
3 Open 3 document View SEC filing for 3 FORM 3 20 Aug 2025 18 Aug 2025
DEFA14A Open DEFA14A document View SEC filing for DEFA14A CURRENT REPORT 19 Aug 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 19 Aug 2025 19 Aug 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 19 Aug 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 18 Aug 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 18 Aug 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 15 Aug 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 15 Aug 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 15 Aug 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 15 Aug 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 15 Aug 2025 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 15 Aug 2025 001-37673
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 Aug 2025 30 Jun 2025 001-37673
425 Open 425 document View SEC filing for 425 CURRENT REPORT 15 Aug 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 15 Aug 2025 15 Aug 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 15 Aug 2025 15 Aug 2025 001-37673
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NOTIFICATION OF LATE FILING 14 Aug 2025 30 Jun 2025 001-37673
425 Open 425 document View SEC filing for 425 CURRENT REPORT 04 Aug 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 04 Aug 2025 04 Aug 2025 001-37673
425 Open 425 document View SEC filing for 425 CURRENT REPORT 14 Jul 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 14 Jul 2025 14 Jul 2025 001-37673
SD Open SD document View SEC filing for SD SPECIALIZED DISCLOSURE REPORT 30 May 2025 001-37673
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 May 2025 31 Mar 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 15 May 2025 15 May 2025 001-37673
10-K/A Open 10-K/A document | Open XBRL data View SEC filing for 10-K/A AMENDMENT NO. 1 TO FORM 10-K 30 Apr 2025 31 Dec 2024 001-37673
4 Open 4 document View SEC filing for 4 FORM 4 28 Apr 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 28 Apr 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 28 Apr 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 28 Apr 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 28 Apr 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 28 Apr 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 28 Apr 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 21 Apr 2025 17 Apr 2025
4 Open 4 document View SEC filing for 4 FORM 4 21 Apr 2025 17 Apr 2025
4 Open 4 document View SEC filing for 4 FORM 4 21 Apr 2025 17 Apr 2025
4 Open 4 document View SEC filing for 4 FORM 4 21 Apr 2025 17 Apr 2025
4 Open 4 document View SEC filing for 4 FORM 4 21 Apr 2025 17 Apr 2025
4 Open 4 document View SEC filing for 4 FORM 4 21 Apr 2025 17 Apr 2025
4 Open 4 document View SEC filing for 4 FORM 4 21 Apr 2025 17 Apr 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 17 Apr 2025 17 Apr 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 02 Apr 2025 02 Apr 2025 001-37673
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 31 Mar 2025 31 Dec 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 31 Mar 2025 31 Mar 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 12 Mar 2025 12 Mar 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 10 Mar 2025 07 Mar 2025 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 26 Feb 2025 26 Feb 2025 001-37673
4 Open 4 document View SEC filing for 4 FORM 4 25 Feb 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 25 Feb 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 25 Feb 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 25 Feb 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 25 Feb 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 25 Feb 2025 22 Feb 2025
4 Open 4 document View SEC filing for 4 FORM 4 25 Feb 2025 22 Feb 2025
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 25 Feb 2025 21 Feb 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 12 Feb 2025 12 Feb 2025 001-37673
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 12 Feb 2025 333-273357
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 27 Jan 2025 27 Jan 2025 001-37673
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 27 Jan 2025 333-273357
4 Open 4 document View SEC filing for 4 FORM 4 07 Jan 2025 04 Jan 2025
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 07 Jan 2025 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 30 Dec 2024 27 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 27 Dec 2024 26 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 27 Dec 2024 26 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 27 Dec 2024 26 Dec 2024
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 27 Dec 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 27 Dec 2024 26 Dec 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 23 Dec 2024 18 Dec 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 16 Dec 2024 16 Dec 2024 001-37673
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 16 Dec 2024 333-273357
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 09 Dec 2024 03 Dec 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 27 Nov 2024 27 Nov 2024 001-37673
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 27 Nov 2024 333-273357
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 19 Nov 2024 30 Sep 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 19 Nov 2024 19 Nov 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 19 Nov 2024 19 Nov 2024 001-37673
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NOTIFICATION OF LATE FILING 14 Nov 2024 30 Sep 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 14 Nov 2024 13 Nov 2024 001-37673
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A COWEN AND COMPANY, LLC 13 Nov 2024 005-85176
4 Open 4 document View SEC filing for 4 FORM 4 04 Nov 2024 31 Oct 2024
4 Open 4 document View SEC filing for 4 FORM 4 22 Oct 2024 20 Oct 2024
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 22 Oct 2024 21 Feb 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 16 Oct 2024 16 Oct 2024 001-37673
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 16 Oct 2024 333-273357
4 Open 4 document View SEC filing for 4 FORM 4 03 Oct 2024 01 Oct 2024
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 03 Oct 2024 21 Feb 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 03 Oct 2024 02 Oct 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 01 Oct 2024 30 Sep 2024 001-37673
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 30 Sep 2024 333-273357
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 30 Sep 2024 27 Sep 2024 001-37673
4 Open 4 document View SEC filing for 4 FORM 4 16 Sep 2024 15 Sep 2024
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 16 Sep 2024 21 Feb 2024
SC 13G Open SC 13G document View SEC filing for SC 13G 13 Sep 2024 005-85176
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 09 Sep 2024 09 Sep 2024 001-37673
4 Open 4 document View SEC filing for 4 FORM 4 04 Sep 2024 01 Sep 2024
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 04 Sep 2024 21 Feb 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 23 Aug 2024 23 Aug 2024 001-37673
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 23 Aug 2024 333-273357
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 20 Aug 2024 20 Aug 2024 001-37673
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 19 Aug 2024 30 Jun 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 13 Aug 2024 13 Aug 2024 001-37673
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NOTIFICATION OF LATE FILING 13 Aug 2024 30 Jun 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 18 Jul 2024 18 Jul 2024 001-37673
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 18 Jul 2024 333-273357
4 Open 4 document View SEC filing for 4 FORM 4 08 Jul 2024 04 Jul 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 03 Jul 2024 03 Jul 2024 001-37673
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2024 27 Jun 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 17 Jun 2024 17 Jun 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 13 Jun 2024 13 Jun 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 12 Jun 2024 06 Jun 2024 001-37673
SD Open SD document View SEC filing for SD SPECIALIZED DISCLOSURE REPORT 30 May 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 29 May 2024 29 May 2024 001-37673
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 29 May 2024 333-273357
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 20 May 2024 20 May 2024 001-37673
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 20 May 2024 31 Mar 2024 001-37673
4 Open 4 document View SEC filing for 4 FORM 4 16 May 2024 14 May 2024
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 16 May 2024 21 Feb 2024
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NOTIFICATION OF LATE FILING 16 May 2024 31 Mar 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 14 May 2024 14 May 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 10 May 2024 10 May 2024 001-37673
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 10 May 2024 333-273357
4 Open 4 document View SEC filing for 4 FORM 4 03 May 2024 30 Apr 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Apr 2024 20 Apr 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Apr 2024 22 Apr 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Apr 2024 20 Apr 2024
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 23 Apr 2024 22 Feb 2024
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 23 Apr 2024 22 Feb 2024
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 23 Apr 2024 22 Feb 2024
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 23 Apr 2024 21 Feb 2024
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 05 Apr 2024 005-85176
4 Open 4 document View SEC filing for 4 FORM 4 03 Apr 2024 01 Apr 2024
DEF 14A Open DEF 14A document View SEC filing for DEF 14A PROXY STATEMENT 03 Apr 2024 14 May 2024 001-37673
DEFA14A Open DEFA14A document View SEC filing for DEFA14A 8-K 22 Mar 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Mar 2024 21 Mar 2024 001-37673
PRE 14A Open PRE 14A document View SEC filing for PRE 14A PROXY STATEMENT 22 Mar 2024 22 Mar 2024 001-37673
4 Open 4 document View SEC filing for 4 FORM 4 19 Mar 2024 15 Mar 2024
424B5 Open 424B5 document View SEC filing for 424B5 PROSPECTUS SUPPLEMENT 15 Mar 2024 333-273357
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 15 Mar 2024 15 Mar 2024 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Mar 2024 12 Mar 2024 001-37673
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 12 Mar 2024 31 Dec 2023 001-37673
4 Open 4 document View SEC filing for 4 FORM 4 05 Mar 2024 01 Mar 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 01 Mar 2024 29 Feb 2024 001-37673
4 Open 4 document View SEC filing for 4 FORM 4 26 Feb 2024 22 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 26 Feb 2024 22 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 26 Feb 2024 22 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 26 Feb 2024 22 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 26 Feb 2024 22 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 26 Feb 2024 22 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 26 Feb 2024 22 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 26 Feb 2024 22 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 26 Feb 2024 22 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024 001-37673
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Feb 2024 21 Feb 2024
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 13 Feb 2024 005-85176
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 01 Feb 2024 31 Jan 2024 001-37673
SC 13G Open SC 13G document View SEC filing for SC 13G 31 Jan 2024 005-85176
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2024 04 Jan 2024
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2024 29 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2024 29 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2024 29 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 29 Dec 2023 27 Dec 2023
305B2 Open 305B2 document View SEC filing for 305B2 FORM 305B2 28 Dec 2023 333-273357
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 28 Dec 2023 28 Dec 2023 001-37673
144 Open 144 document View SEC filing for 144 12 Dec 2023 001-37673
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K CURRENT REPORT 12 Dec 2023 12 Dec 2023 001-37673
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4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 25 Sep 2015 01 Jul 2014
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8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT 15 Sep 2015 15 Sep 2015 000-53704
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8-K Open 8-K document View SEC filing for 8-K FORM 8-K 10 Sep 2015 10 Sep 2015 000-53704
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q QUARTERLY REPORT 14 Aug 2015 30 Jun 2015 000-53704
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8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT 01 Jul 2015 30 Jun 2015 000-53704
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 19 Jun 2015 17 Jun 2015 000-53704
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 15 May 2015 31 Mar 2015 000-53704
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 16 Apr 2015 16 Apr 2015 000-53704
D/A Open D/A document View SEC filing for D/A 08 Apr 2015 021-235491
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D/A Open D/A document View SEC filing for D/A 06 Apr 2015 021-235491
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10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 30 Mar 2015 31 Dec 2014 000-53704
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8-K/A Open 8-K/A document View SEC filing for 8-K/A AMP HOLDING INC. FORM 8-K/A 21 Jan 2015 16 Jan 2015 000-53704
RW Open RW document View SEC filing for RW AMP HOLDING INC. FORM RW 16 Jan 2015 333-200965
D/A Open D/A document View SEC filing for D/A 12 Jan 2015 021-229964
DEF 14A Open DEF 14A document View SEC filing for DEF 14A AMP HOLDING, INC. SCHEDULE DEF. 14A 05 Jan 2015 26 Dec 2014 000-53704
8-K/A Open 8-K/A document View SEC filing for 8-K/A AMP HOLDING, INC. FORM 8-K/A 05 Jan 2015 08 Dec 2014 000-53704
S-1 Open S-1 document View SEC filing for S-1 REGISTRATION STATEMENT 15 Dec 2014 333-200965
PRE 14A Open PRE 14A document View SEC filing for PRE 14A AMP HOLDING INC. PRE 14A 15 Dec 2014 15 Dec 2014 000-53704
D Open D document View SEC filing for D 11 Dec 2014 021-229964
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING 8-K 11 Dec 2014 08 Dec 2014 000-53704
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q AMP HOLDING, INC. FORM 10-Q 13 Nov 2014 30 Sep 2014 000-53704
8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT 12 Nov 2014 12 Nov 2014 000-53704
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 11 Sep 2014 11 Sep 2014 000-53704
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q AMP HOLDING, INC FORM 10-Q 14 Aug 2014 30 Jun 2014 000-53704
S-8 Open S-8 document View SEC filing for S-8 AMP HOLDING, INC FORM S-8 10 Jun 2014 333-196631
SC 13D Open SC 13D document View SEC filing for SC 13D AMP HOLDING INC. FORM SC 13D 06 Jun 2014 005-85176
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Jun 2014 29 Nov 2012
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4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Jun 2014 23 May 2014
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SC 13D Open SC 13D document View SEC filing for SC 13D AMP HOLDING INC. FORM SC 13D 05 Jun 2014 005-85176
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC.FORM 8-K 28 May 2014 23 May 2014 000-53704
D Open D document View SEC filing for D 28 May 2014 021-218105
D Open D document View SEC filing for D 28 May 2014 021-218101
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q AMP HOLDING, INC. FORM 10-Q 20 May 2014 31 Mar 2014 000-53704
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q AMP HOLDING, INC. FORM NT-10Q 15 May 2014 31 Mar 2014 000-53704
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K AMP HOLDING INC. FORM 10-K 15 Apr 2014 31 Dec 2013 000-53704
NT 10-K Open NT 10-K document View SEC filing for NT 10-K AMP HOLDING, FORM 12B-25 NT 10-K 01 Apr 2014 31 Dec 2013 000-53704
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D Open D document View SEC filing for D 19 Mar 2014 021-213912
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 19 Mar 2014 18 Mar 2014 000-53704
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 10 Mar 2014 07 Mar 2014 000-53704
S-8 Open S-8 document View SEC filing for S-8 AMP HOLDING INC. FORM S-8 17 Jan 2014 333-193425
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 16 Dec 2013 11 Dec 2013 000-53704
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10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q AMP HOLDINGS FORM 10-Q 19 Nov 2013 30 Sep 2013 000-53704
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8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 30 Oct 2013 24 Oct 2013 000-53704
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 11 Sep 2013 07 Aug 2013
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10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q AMP HOLDING INC. FORM 10-Q 19 Aug 2013 30 Jun 2013 000-53704
8-K Open 8-K document View SEC filing for 8-K AMP HOLDINGS, INC. FORM 8-K 16 Aug 2013 15 Aug 2013 000-53704
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D/A Open D/A document View SEC filing for D/A 03 Jul 2013 021-193730
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10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q AMP HOLDING INC. FORM 10-Q 15 May 2013 31 Mar 2013 000-53704
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMP HOLDING INC. FORM SC 13-G/A 02 May 2013 005-85176
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 Apr 2013 13 Mar 2013
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K AMP HOLDING INC. FORM 10-K 12 Apr 2013 31 Dec 2012 000-53704
NT 10-K Open NT 10-K document View SEC filing for NT 10-K AMP HOLDING INC FORM NT 10-K 01 Apr 2013 31 Dec 2012 000-53704
D Open D document View SEC filing for D 21 Mar 2013 021-193730
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 19 Mar 2013 19 Mar 2013 000-53704
8-K Open 8-K document View SEC filing for 8-K AMP HOLDINGS, INC FORM 8-K 15 Mar 2013 13 Mar 2013 000-53704
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING, INC FORM 8K 06 Mar 2013 04 Mar 2013 000-53704
3/A Open 3/A document View SEC filing for 3/A PRIMARY DOCUMENT 06 Mar 2013 06 Dec 2012
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMP HOLDING INC. FORM SC 13G/A 06 Mar 2013 005-85176
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 28 Feb 2013 21 Feb 2013 000-53704
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 05 Feb 2013 29 Jan 2013 000-53704
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 11 Jan 2013 06 Dec 2012
SC 13G Open SC 13G document View SEC filing for SC 13G AMP HOLDING INC. FORM SC 13G 11 Jan 2013 005-85176
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 11 Jan 2013 31 Dec 2012 000-53704
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q AMP HOLDING INC. FORM 10-Q 15 Nov 2012 30 Sep 2012 000-53704
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q AMP HOLDING INC. FORM NT 10-Q 15 Nov 2012 30 Sep 2012 000-53704
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 17 Oct 2012 17 Oct 2012 000-53704
S-8 Open S-8 document View SEC filing for S-8 AMP HOLDING INC. FORM S-8 24 Sep 2012 333-184059
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 30 Aug 2012 24 Aug 2012 000-53704
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING FORM 8-K 24 Aug 2012 20 Aug 2012 000-53704
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q AMP HOLDING INC. FORM 10-Q 14 Aug 2012 30 Jun 2012 000-53704
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 11 Jul 2012 02 Jul 2012 000-53704
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 25 Jun 2012 02 May 2012 000-53704
8-K/A Open 8-K/A document View SEC filing for 8-K/A AMP HOLDING INC. FORM 8-K/A 29 May 2012 06 Jan 2012 000-53704
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 22 May 2012 16 May 2012 000-53704
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8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 19 Apr 2012 13 Apr 2012 000-53704
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K AMP HOLDING INC. FORM 10-K 04 Apr 2012 31 Dec 2011 000-53704
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8-K/A Open 8-K/A document View SEC filing for 8-K/A AMP HOLDING INC. FORM 8-K/A 04 Jan 2012 10 May 2011 000-53704
D/A Open D/A document View SEC filing for D/A 04 Jan 2012 021-152454
8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 08 Dec 2011 08 Dec 2011 000-53704
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D/A Open D/A document View SEC filing for D/A 23 Nov 2011 021-152454
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8-K Open 8-K document View SEC filing for 8-K AMP HOLDING INC. FORM 8-K 04 Nov 2011 31 Oct 2011 000-53704
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D/A Open D/A document View SEC filing for D/A 22 Sep 2011 021-152454
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8-K Open 8-K document View SEC filing for 8-K AMP HOLDINGS FORM 8-K 20 Apr 2011 18 Apr 2011 000-53704
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About this filer

Workhorse Group Inc. files with the SEC under CIK 0001425287. This page aggregates EDGAR filings and related ownership activity.

Industry: Motor Vehicles & Passenger Car Bodies.

See insider transactions for this issuer.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
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