Operating Engineers Construction Industry and Miscellaneous Pension Fund, et al. v. Neogen Corporation, et al.

District Court, W.D. Michigan·Decided August 10, 2026·No. 1:25-cv-00802·Unknown

Opinion

UNITED STATES DISTRICT COURT WESTERN DISTRICT OF MICHIGAN SOUTHERN DIVISION

OPERATING ENGINEERS CONSTRUCTION INDUSTRY AND MISCELLANEOUS PENSION FUND, et al., Case No. 1:25-cv-802

Plaintiffs, Hon. Hala Y. Jarbou

v.

NEOGEN CORPORATION, et al.,

Defendants. ___________________________________/ OPINION Plaintiffs bring this putative class action for securities fraud against Neogen Corporation, a publicly-traded company, and two of its senior officers: John Adent and David Naemura. Plaintiffs, who held Neogen common stock, allege that Defendants violated the Securities Exchange Act of 1934 (“Exchange Act”), 15 U.S.C. § 78a et seq., and SEC Rule 10b-5, 17 C.F.R. § 240.10b-5. In short, Plaintiffs claim that Defendants made false or misleading statements about the progress of Neogen’s integration of a business that it purchased from 3M Company, and that when the lack of progress finally became apparent to investors, Neogen’s stock price declined. Before the Court is Defendants’ motion to dismiss the complaint for failure to state a claim. For the reasons herein, the Court will grant the motion. I. BACKGROUND According to the complaint, Neogen’s “food safety segment” makes and sells diagnostic test kits and software to detect “unwanted organisms or substances” in food. (Am. Compl. ¶ 40, ECF No. 31.) In 2021, this segment accounted for roughly half the company’s revenue. Neogen acquired 3M Company’s food safety business in 2022, with the intent to become a “global leader in food security.” (Id. ¶ 1.) The $5.3 billion merger was a significant event for Neogen, as it would “double” the company’s size and bring in additional revenue through the sale of product lines acquired from 3M. (Id.) Neogen intended to take over product lines that would complement its own products

and create opportunities for “cross-selling” additional products to existing customers. (Id. ¶ 67.) The acquired product lines included 3M’s products for “hygiene monitoring,” “pathogen detection,” “sample collection” (also called “sample handling”), and “indicator testing.” (Id. ¶¶ 44–47.) To be successful, the merger would require Neogen to integrate the “‘back-office’ IT and logistics functions” of the two businesses into one. (Id. ¶ 2.) Of particular importance from an IT standpoint were the customer resource management (CRM) system and the enterprise resource planning (ERP) system. (Id.) The CRM system managed sales and customer communications while the ERP system managed the supply chains, demand forecasting, order processing, order

fulfillment, and accounting for the business. (Id.) In addition to setting up these systems, Neogen had to move the manufacturing and distribution of 3M’s products into Neogen’s own facilities. To ensure a seamless transition, Neogen entered into transition services agreements with 3M whereby Neogen would pay 3M gradually increasing fees so that 3M would maintain the CRM and ERP systems of 3M’s food safety business until Neogen could fully integrate those functions into its own systems. (Id. ¶ 2.) Neogen also agreed to pay 3M a percentage of net sales revenue from the sale of 3M products, as well as a “mark-up percentage” for the cost of manufacturing, so that 3M would continue to manufacture and distribute those products until Neogen could take on those functions itself. (Id. ¶¶ 56–57.) Due to the fees associated with these agreements, delays in the integration process would impair Neogen’s profitability. The merger closed on September 1, 2022. (Id. ¶ 62.) Plaintiffs take issue with statements made by Neogen itself, Adent, Neogen’s then-President and Chief Executive Officer (CEO), and Naemura, Neogen’s then-Chief Financial Officer (CFO), from January 5, 2023, through June 3,

2025 (the “Class Period”). Plaintiffs contend that these statements painted a false or misleading picture of Neogen’s progress in integrating the two businesses, defrauding investors like Plaintiffs. Defendants purportedly told investors on multiple occasions that the integration process was on track, and later that some issues with the software or manufacturing integration had been resolved, when in fact those issues allegedly persisted. Plaintiffs contend that in 2024 and 2025, when Defendants finally disclosed details about these problems, Neogen’s stock price plummeted. For instance, when Neogen reported order-fulfillment delays and disappointing earnings in April 2024, its stock price plunged 9 percent in a single day. (Id. ¶¶ 243–44.) Similarly, in April 2025, after Neogen announced that it would be terminating Adent, Adent and Naemura reported

challenges with producing its sample collection products, as well as shipping delays for most products, causing the company’s stock price to drop 29 percent in one day. (Id. ¶¶ 247–48.) And in June 2025, Naemura allegedly revealed that Neogen’s production capabilities were still so impaired that it was assembling some products by hand, causing shipment delays, preventing the company from shipping inventory before it expired, and causing the company to incur “over $1 billion in financial charges.” (Id. ¶¶ 111–12.) These revelations caused Neogen’s stock price to decline further. (Id. ¶ 114.) Count I of the amended complaint asserts violations of Section 10(b) of the Exchange Act, 15 U.S.C. § 78j(b), and SEC Rule 10b-5 against all Defendants. Section 10(b) “forbids (1) the ‘use or employ[ment] . . . of any . . . deceptive device,’ (2) ‘in connection with the purchase or sale of any security,’ and (3) ‘in contravention of” Securities and Exchange Commission ‘rules and regulations.’” Dura Pharms., Inc. v. Broudo, 544 U.S. 336, 341 (2005) (quoting 15 U.S.C. § 78j(b)). Rule 10b–5 “forbids, among other things, the making of any ‘untrue statement of a material fact’ or the omission of any material fact ‘necessary in order to make the statements

made . . . not misleading.’” Dura Pharms., 544 U.S. at 341 (quoting 17 C.F.R. § 240.10b–5). Count II of the amended complaint asserts violations of Section 20(a) of the Exchange Act, 15 U.S.C. § 78t(a), against Adent and Naemura. “When a primary violation of securities law is shown, that provision imposes joint and several liability on ‘controlling persons.’” Ind. State Dist. Council of Laborers & Hod Carriers Pension & Welfare Fund v. Omnicare, Inc., 583 F.3d 935, 947 (6th Cir. 2009). Defendants seek dismissal of the foregoing claims, arguing that Plaintiffs have failed to adequately plead the necessary elements of their claims, such as fraud, scienter, and loss causation. II. STANDARD A. General Pleading Standards A plaintiff’s complaint must make a “short and plain statement of the claim showing that

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Operating Engineers Construction Industry and Miscellaneous Pension Fund, et al. v. Neogen Corporation, et al., (W.D. Mich. 2026).

Operating Engineers Construction Industry and Miscellaneous Pension Fund, et al. v. Neogen Corporation, et al. (Operating Engineers Construction Industry and Miscellaneous Pension Fund, et al. v. Neogen Corporation, et al.) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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