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PIONEER POWER SOLUTIONS, INC.

For the period ended Dec 31, 2025. Filed Apr 8, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Apr 8, 2026

PPSI$2.26-0.4%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Item 16. Form 10-K Summary

None.

INDEX TO EXHIBITS

Exhibit No.Description
2.1Agreement and Plan of Merger Agreement, dated January 22, 2019, between Pioneer Critical Power Inc. and CleanSpark. (Incorporated by reference to Exhibit 2.1 to the Current Report on Form 8-K of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on January 28, 2019).
2.2Stock Purchase Agreement, dated as of June 28, 2019, by and among Pioneer Power Solutions, Inc., Electrogroup Canada, Inc., Jefferson Electric, Inc., JE Mexican Holdings, Inc., Nathan Mazurek, Pioneer Transformers L.P. and Pioneer Acquireco ULC (Incorporated by reference to Exhibit 2.1 to the Current Report on Form 8-K of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on July 1, 2019).
2.3Amendment No. 1 to the Stock Purchase Agreement, dated as of August 13, 2019, by and among Pioneer Power Solutions, Inc., Electrogroup Canada, Inc., Jefferson Electric, Inc., JE Mexican Holdings, Inc., Pioneer Transformers L.P. and Pioneer Acquireco ULC (incorporated by reference to Exhibit 2.1 to the Current Report on Form 8-K of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on August 14, 2019).
2.4Equity Contribution and Purchase Agreement, dated as of October 29, 2024, by and among Pioneer Power Solutions, Inc., Pioneer Custom Electrical Products, LLC, Voltaris Power LLC and Pioneer Investment LLC (Incorporated by reference to Exhibit 2.1 to the Current Report on Form 8-K of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on November 4, 2024).
3.1Composite Certificate of Incorporation (Incorporated by reference to Exhibit 3.1 to Amendment No. 4 to the Registration Statement on Form S-1 of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on June 21, 2011).
3.2Amended and Restated Bylaws of Pioneer Power Solutions, Inc. (Incorporated by reference to Exhibit 3.1 to the Quarterly Report on Form 10-Q of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on November 14, 2022).
4.1*Description of Securities.
4.2Form of Common Stock Certificate (incorporated by reference to Exhibit 4.7 to the Registration Statement on Form S-1 of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on August 1, 2013).
10.1+Form of Director and Officer Indemnification Agreement (Incorporated by reference to Exhibit 10.1 to the Annual Report on Form 10-K of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission for the year ended December 31, 2010).
10.2+Employment Agreement, dated March 30, 2012, by and between Pioneer Power Solutions, Inc. and Nathan J. Mazurek (Incorporated by reference to Exhibit 10.42 to the Annual Report on Form 10-K of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on March 30, 2012).
10.3+First Amendment to Employment Agreement, dated November 11th, 2014, by and between Pioneer Power Solutions, Inc. and Nathan J. Mazurek (Incorporated by reference to Exhibit 10.1 to the Quarterly Report on Form 10-Q of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on November 12, 2014).
10.4+Second Amendment to Employment Agreement, dated June 30, 2016, by and between Pioneer Power Solutions, Inc. and Nathan J. Mazurek (Incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on July 1, 2016).
10.5+Second Amendment to Employment Agreement, dated June 30, 2016, by and between Jefferson Electric, Inc. and Thomas Klink. (Incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on July 1, 2016).
10.6+Third Amendment to Employment Agreement, dated February 15, 2019, by and between Jefferson Electric, Inc. and Thomas Klink. (Incorporated by reference to Exhibit 10.2 to the Current Report on Form 8-K of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on February 20, 2019).
10.7+Third Amendment to Employment Agreement, dated March 30, 2020, by and between the Company and Nathan J. Mazurek (Incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K of Pioneer Power Solutions, Inc. filed with the Securities and Exchange Commission on April 1, 2020).
10.8At The Market Offering Agreement, dated October 20, 2020, by and between Pioneer Power Solutions, Inc. and H.C. Wainwright & Co., LLC (Incorporated by reference to Exhibit 1.2 to the Registration Statement on Form S-3 filed with the Securities and Exchange Commission on October 20, 2020).
10.9+Pioneer Power Solutions, Inc. 2021 Long-Term Incentive Plan (Incorporated by reference to Annex A to the Company’s definitive proxy statement on Schedule 14A, filed with the SEC on October 25, 2021).
10.10+First Amendment Pioneer Power Solutions, Inc. 2021 Long-Term Incentive Plan (Incorporated by reference to Exhibit 10.3 to the Form 10-Q filed with the Securities and Exchange Commission on November 14, 2023).
10.11+Fourth Amendment to Employment Agreement, dated April 25, 2022, by and between Pioneer Power Solutions, Inc. and Nathan J. Mazurek (Incorporated by reference to Exhibit 10.1 to the Form 8-K filed with the Securities and Exchange Commission on April 29, 2022).
10.12+Employment Agreement, dated April 25, 2022, by and between Pioneer Power Solutions, Inc. and Wojciech (Walter) Michalec (Incorporated by reference to Exhibit 10.2 to the Form 8-K filed with the Securities and Exchange Commission on April 29, 2022).
10.13+Letter Agreement, dated September 20, 2023, by and between Pioneer Power Solutions, Inc. and Walter Michalec (Incorporated by reference to Exhibit 10.1 to the Form 8-K filed with the Securities and Exchange Commission on September 22, 2023).
10.14+Letter Agreement, dated September 20, 2023, by and between Pioneer Power Solutions, Inc. and Nathan Mazurek (Incorporated by reference to Exhibit 10.2 to the Form 8-K filed with the Securities and Exchange Commission on September 22, 2023).
10.15+Fifth Amendment to Employment Agreement, dated December 26, 2023, by and between Pioneer Power Solutions, Inc. and Nathan J. Mazurek (Incorporated by reference to Exhibit 10.1 to the Form 8-K filed with the Securities and Exchange Commission on January 2, 2024).
10.16+First Amendment to Employment Agreement, dated December 26, 2023, by and between Pioneer Power Solutions, Inc. and Wojciech (Walter) Michalec (Incorporated by reference to Exhibit 10.2 to the Form 8-K filed with the Securities and Exchange Commission on January 2, 2024).
16.1Letter from Marcum LLP to the Securities and Exchange Commission dated November 20, 2024 (Incorporated by reference to Exhibit 16.1 to the Form 8-K filed with the Securities and Exchange Commission on November 20, 2024).
19.1Insider Trading Policy (Incorporated by reference to Exhibit 19.1 to the Annual Report on Form 10-K filed with the Securities and Exchange Commission on April 15, 2025).
21.1List of subsidiaries (Incorporated by reference to Exhibit 21.1 to the Form 10-K filed with the Securities and Exchange Commission on April 15, 2025).
23.1*Consent of BDO USA, P.C.
31.1*Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1**Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2**Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
97.1Clawback Policy (Incorporated by reference to Exhibit 97.1 to the Annual Report on Form 10-K filed with the Securities and Exchange Commission on July 26, 2024).
101.INS*Inline XBRL Instance Document.
101.SCH*Inline XBRL Taxonomy Extension Schema Document.
101.CAL*Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF*Inline XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB*Inline XBRL Taxonomy Extension Labels Linkbase Document.
101.PRE*Inline XBRL Taxonomy Extension Presentation Linkbase Document.
104*Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101).
  • Management contract or compensatory plan or arrangement.
  • Filed herewith.

** Furnished herewith.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

PIONEER POWER SOLUTIONS, INC.
Date: April 8, 2026By:/s/ Nathan J. Mazurek
Name: Nathan J. Mazurek
Title: Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

SignatureTitleDate
/s/ Nathan J. MazurekApril 8, 2026
Nathan J. MazurekPresident, Chief Executive Officer and Chairman of the Board of Directors (Principal Executive Officer)
/s/ Walter MichalecApril 8, 2026
Walter MichalecChief Financial Officer, Secretary and Treasurer (Principal Financial Officer and Principal Accounting Officer)
/s/ Yossi CohnApril 8, 2026
Yossi CohnDirector
/s/ Ian RossApril 8, 2026
Ian RossDirector
/s/ David TeslerApril 8, 2026
David TeslerDirector
/s/ Jonathan TulkoffApril 8, 2026
Jonathan TulkoffDirector
/s/ Thomas KlinkApril 8, 2026
Thomas KlinkDirector
/s/ Kytchener WhyteApril 8, 2026
Kytchener WhyteDirector
ContentsView on SEC.gov

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