Don Dishion, individually and on behalf of all others similarly situated v. Power Solutions International, Inc., Dino Xykis, and Xun Li

District Court, N.D. Illinois·Decided July 30, 2026·No. 1:26-cv-03149·Unknown

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE NORTHERN DISTRICT OF ILLINOIS EASTERN DIVISION

DON DISHION, individually and on ) behalf of all others similarly situated, ) ) Plaintiff, ) ) vs. ) Case No. 26 C 3149 ) POWER SOLUTIONS ) INTERNATIONAL, INC., ) DINO XYKIS, and XUN LI, ) ) Defendants. )

MEMORANDUM OPINION AND ORDER MATTHEW F. KENNELLY, District Judge: This case involves a securities class action brought by Don Dishion against Power Solutions International, Inc., a manufacturer of small engines used in industrial equipment, and two of its executives, Dino Xykis and Xun Li. Three movants seek appointment as lead plaintiff: Donald McBride; the Investor Group (composed of three individual investors, Greg Hochstedler, Dan Morris, and Jeffrey Schwartz); and Shane Andrews. For the reasons below, the Court grants Andrews' motion to serve as lead plaintiff and approves the selection of Bernstein Liebhard LLP as lead class counsel and Cohen Milstein Sellers & Toll PLLC as liaison counsel. The Court denies the remaining motions. Background Power Solutions International, Inc., manufactures and sells small engines used in industrial equipment and micro-power systems. Its stock is traded on the NASDAQ (National Association of Securities Dealers Automated Quotations). In 2025, Power Solutions sought new clients in the data center industry for which it would provide onsite power generation solutions. In May 2025, it framed this decision to investors as prioritization of "higher growth, higher-margin markets." Compl. ¶ 20. In August 2025, it

again described "strong demand" and "our deliberate strategic focus on higher-growth sectors such as data centers." Id. ¶ 21. In September 2025, Power Solutions described its "Power Systems business" as offering "superior margins[.]" Id. ¶ 23. As of September 23, 2025, Power Solutions stock closed at $115.78 per share, the highest price in the class period alleged in the complaint, which runs from May 8, 2025 to March 2, 2026. Id. ¶ 43. In November 2025, Power Solutions released its third quarter financial disclosures, reporting a 5 percent year-over-year decline in its gross margin due to "temporary inefficiencies related to our accelerated production ramp-up" for "key data center product lines." Id. ¶ 25. Its stock price fell about 20 percent the following day,

closing at $65.69 per share. Id. ¶ 27. In March 2026, Power Solutions released its fourth quarter and full year 2025 financial results. Its gross margin had declined 8 percent year-over-year for the same cited reason. Id. ¶ 29. The price of Power Solutions stock fell about 28 percent the next day, closing at $60.91. Id. ¶ 30. Don Dishion owns Power Solutions securities. On March 20, 2026, Dishion sued Power Solutions, its Chief Executive Officer, Dino Xykis, and its Chief Financial Officer, Xun Li, on behalf of a class of those who purchased Power Solutions securities during the class period. The lawsuit alleges that Power Solutions failed to disclose material adverse facts or made false statements. Specifically, "(1) the Company overstated its ability to capture sales demand for its power systems solutions, particularly within the data center market; (2) the Company understated the impact of its enhancements to manufacturing capacity to meet demand within the data center market, including the expected costs and the nature of the related 'inefficiencies'; and (3) . . . as a result of the

foregoing, Defendants' positive statements about the Company's business, operations, and prospects were materially misleading and/or lacked a reasonable basis." Id. ¶ 7. The complaint alleges that the class suffered losses because of these misleading statements and omissions and the resulting decline in market value of Power Solutions stock. The complaint includes two claims. First, the plaintiffs allege that all defendants violated section 10(b) of the Securities Exchange Act of 1934 and Securities and Exchange Commission Rule 10b-5 promulgated thereunder. Second, the plaintiffs allege that the individual defendants violated section 20(a) of the Act. The plaintiffs seek certification of a class under Federal Rule of Civil Procedure 23 and an award of

compensatory damages. The price of Power Solutions stock continued to fall after this lawsuit was filed. On May 11, 2026, the company made another financial disclosure in which it noted elevated production costs and softer demand. See McBride Reply to Mots. for Appointment as Lead Pl. at 4 & n.4. From May 11 to May 12, 2026, Power Solutions stock fell from $62.45 per share to $38.00 per share. Id. The per-share price of Power Solutions stock has been below $40 since June 22, 2026, and it dropped to $25.28 on July 29. See Yahoo! Finance, NASDAQ Real Time Price: Power Solutions International, https://finance.yahoo.com/quote/PSIX/history/ (last visited July 29, 2026). The Court has before it three motions for appointment as lead plaintiff, filed by Donald McBride, Shane Andrews, and the Investor Group, a group of three putative class members. McBride is a Texas resident employed as a senior business analyst in the healthcare industry; he has eleven years of investing experience. The Investor

Group comprises Greg Hochstedler, Dan Morris, and Jeffrey Schwartz. Hochstedler lives in Indiana, works as a contractor, and has thirty years of investment experience. Schwartz lives in Illinois, works in banking, and has forty years of investment experience. Morris lives in Alabama, works in finance, and has fifty years of investment experience. Finally, Andrews, the last individual moving for appointment, resides in Washington, is a fleet foreman at a power company, and has been investing for over five years. Dishion, the named plaintiff, also filed and then withdrew a motion seeking appointment as lead counsel. See dkt. 20, 54. Discussion The Private Securities Litigation Reform Act of 1995 (PSLRA), 15 U.S.C. § 78u-

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Don Dishion, individually and on behalf of all others similarly situated v. Power Solutions International, Inc., Dino Xykis, and Xun Li, (N.D. Ill. 2026).

Don Dishion, individually and on behalf of all others similarly situated v. Power Solutions International, Inc., Dino Xykis, and Xun Li (Don Dishion, individually and on behalf of all others similarly situated v. Power Solutions International, Inc., Dino Xykis, and Xun Li) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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