Williams v. Mastronardi Produce-USA — Sixth Circuit revived discrimination suit against corporate subsidiary

Case
Diamond Williams v. Mastronardi Produce-USA, Inc.
Court
U.S. Court of Appeals for the Sixth Circuit
Judge
STRANCH; BUSH; MURPHY
Date Decided
August 28, 2026
Docket No.
25-1836
Topics
Claim Preclusion, Nonparty Preclusion, Employment Discrimination, Corporate Affiliates
Source
Read the full opinion

Background

Diamond Williams alleged that she experienced race and gender discrimination, harassment, and retaliation while working at a Michigan facility. She first sued Mastronardi Produce, Ltd., the Canadian parent company of Mastronardi Produce-USA, Inc. The parent maintained that Williams had sued the wrong entity and offered to substitute its U.S. subsidiary, but Williams declined and continued to argue that the parent was her employer.

The district court entered summary judgment for the parent after evidence, including Williams’s W-2 statements, established that the U.S. subsidiary employed her. Williams then pursued a second suit against the subsidiary based on substantially the same events. The district court dismissed that action under Rule 12(b)(6), reasoning that the parent and subsidiary were in privity because of their close and significant relationship and that claim preclusion therefore barred the suit.

The Court’s Holding

The Sixth Circuit reversed. Under the Supreme Court’s framework in Taylor v. Sturgell, a nonparty generally cannot invoke claim preclusion unless the case falls within one of six recognized exceptions to the rule against nonparty preclusion. The district court erred by applying a broader “close-and-significant-relationship” test based largely on the companies’ parent-subsidiary relationship.

None of the three potentially relevant Taylor exceptions was established. The companies’ ownership relationship did not create the kind of successive property interest required for a pre-existing substantive legal relationship, particularly because the dispute concerned separate alleged tort liabilities. The record showed coordination between the companies but did not conclusively establish that the subsidiary controlled the parent’s defense. And adequate representation was absent because the first case involved neither special procedures protecting the subsidiary’s interests nor evidence that the parent litigated in a representative capacity.

The court declined to decide the subsidiary’s newly raised issue-preclusion argument, leaving it for the district court if properly presented on remand. It observed, however, that the prior case established that the Canadian parent was not Williams’s employer; it did not require Williams to continue asserting the rejected position that the parent employed her.

Key Takeaways

  • A close corporate relationship, including a parent’s complete ownership of a subsidiary, does not by itself permit nonparty claim preclusion.
  • After Taylor, Sixth Circuit courts must determine whether one of the six recognized exceptions to nonparty preclusion applies rather than relying on a generalized privity test.
  • Shared counsel, common personnel, exchanged evidence, and litigation coordination do not necessarily establish that one corporate affiliate controlled another’s defense.

Why It Matters

The decision limits the ability of related corporations to use claim preclusion when a plaintiff initially sues the wrong entity. Corporate affiliation alone is insufficient; the party seeking preclusion must establish a recognized exception protecting the general rule that a nonparty is not bound by an earlier judgment.

The ruling revives Williams’s action against the subsidiary but does not resolve her discrimination claims on the merits or foreclose narrower issue-preclusion arguments on remand.

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