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POWER SOLUTIONS INTERNATIONAL, INC. — Investor Relations & Filings

Ticker · PSIX ISIN · US73933G2021 LEI · 549300JWGWDXC70SNH31 US Manufacturing
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Filings indexed 859 across all filing types
Latest filing 2026-05-20 Regulatory Filings
Country US United States of America
Listing US PSIX

About POWER SOLUTIONS INTERNATIONAL, INC.

https://psiengines.com/

Power Solutions International, Inc. (PSI) is a leader in the design, engineering, and manufacture of advanced, emission-certified engines and power systems. The company provides a comprehensive portfolio of powertrain products and solutions for original equipment manufacturers (OEMs). Its offerings include engines with displacements ranging from 0.97 to 88 liters, engineered to operate on a wide variety of fuels such as natural gas, propane, gasoline, diesel, and biofuels. PSI's products are tailored for diverse applications across the industrial, power generation, and transportation markets for both stationary and mobile power. The company specializes in providing fuel-flexible and custom-engineered solutions, including heavy-duty engines and complete power systems with custom enclosures.

Recent filings

Filing Released Lang Actions
SD
Regulatory Filings Classification · 85% confidence The document is an SEC Form SD (“Specialized Disclosure Report”) filed under Rule 13p-1 of the Exchange Act to provide a Conflict Minerals Report for the year ended December 31, 2025. It is a regulatory compliance filing rather than a management discussion or financial report. There is no substantive financial data or presentation content, and it primarily attaches the Conflict Minerals Report as an exhibit. Under our taxonomy, specialized regulatory filings that do not fit into other categories are classified as Regulatory Filings (RNS).
2026-05-20 English
8-K - POWER SOLUTIONS INTERNATIONAL, INC. (0001137091) (Filer)
Board/Management Information Classification · 97% confidence The document is a Form 8-K current report filed under Item 5.02, announcing the resignation of the CEO and the appointment of an interim CEO. This is clearly an announcement of senior management changes, fitting the Board/Management Information category.
2026-05-13 English
10-K/A - POWER SOLUTIONS INTERNATIONAL, INC. (0001137091) (Filer)
Annual Report FY 2025
2026-04-30 English
8-K - POWER SOLUTIONS INTERNATIONAL, INC. (0001137091) (Filer)
Regulatory Filings Classification · 95% confidence The document is a Form 8-K filed with the SEC, which is a current report used to announce major events. The text specifically mentions that the company issued a press release announcing fourth quarter and full year 2025 financial results and outlook for 2026. The document is only 3759 characters long and primarily serves to furnish this press release, which is included as an exhibit. There are no detailed financial statements or substantive financial data within the text itself, only a reference to the press release. According to the 'Menu vs Meal' rule, such a short document that announces or furnishes a report but does not contain the report itself should be classified as a Regulatory Filing (RNS).
2026-03-02 English
10-K - POWER SOLUTIONS INTERNATIONAL, INC. (0001137091) (Filer)
Annual Report FY 2025
2026-03-02 English
8-K - POWER SOLUTIONS INTERNATIONAL, INC. (0001137091) (Filer)
M&A Activity Classification · 95% confidence The document is a Form 8-K Current Report filed with the SEC, dated March 2, 2026. It announces the acquisition of MTL Manufacturing & Equipment Inc. via a press release attached as Exhibit 99.1. The text explicitly states this is a press release furnished as an exhibit and incorporated by reference, and the document is relatively short (3,582 characters). There are no detailed financial statements or comprehensive analysis included, only an announcement of the acquisition event. According to the filing definitions, announcements related to merger proposals or takeover bids fall under M&A Activity (TAR). Since this is an 8-K reporting an acquisition announcement, it fits best under M&A Activity (TAR).
2026-03-02 English

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