A Delaware court recently denied an appeal from Martin Stumpe, a former executive of Danaher Corporation, regarding a ruling that favored Danaher in an ongoing legal dispute. This decision impacts Stumpe's future employment opportunities and highlights the enforceability of noncompetition agreements in Delaware.
The case, filed under C.A. No. 2026-0428-BWD, centers around Stumpe's potential employment with Siemens Medical Solutions USA, Inc. Danaher, a life sciences and technology company, sought a preliminary injunction to prevent Stumpe from starting his new job, claiming it would violate a noncompetition agreement he signed when he was employed by Danaher.
Stumpe was hired by Danaher in 2024 as Chief Data and AI Officer, later promoted to Chief Technology and AI Officer. His role involved significant responsibilities, including overseeing data infrastructure and AI strategy. As part of his employment contract, Stumpe agreed to a noncompetition clause, which prohibited him from working for competitors for 12 months after leaving the company.
In March 2026, Stumpe received a job offer from Siemens, which Danaher considers a direct competitor. In response, Danaher filed a lawsuit to enforce the noncompetition agreement, arguing that Stumpe's new role would breach the terms of their agreement.
The court held a hearing on May 29, 2026, where it ruled against Stumpe's motion to dismiss the case and granted Danaher's request for a preliminary injunction. The court found that Danaher was likely to succeed in its claim that Stumpe's new position with Siemens would violate the noncompetition clause of his contract.
The court ruled, "Danaher established it is likely to succeed on the merits of a claim for anticipatory breach of the noncompetition provision."
Stumpe sought to appeal the court's decision, arguing that the ruling involved significant jurisdictional issues, particularly concerning the enforceability of the noncompetition agreement under Washington state law. Stumpe contended that Washington law should apply, claiming that the agreement's choice of law provision was void under Washington's noncompetition statute.
However, the court denied Stumpe's appeal, stating that while the issue raised was substantial, the potential costs of an interlocutory appeal outweighed the benefits. The court emphasized that such appeals should be exceptional and not routine, as they could disrupt the normal litigation process.
The ruling concluded that the preliminary injunction was justified, as Danaher demonstrated a likelihood of success and potential irreparable harm if Stumpe were allowed to proceed with his employment at Siemens.
This decision has significant implications for Stumpe, who is now unable to start his new job until the legal issues are resolved. It also underscores the importance of noncompetition agreements in employment contracts, particularly in competitive industries like technology and life sciences.
Moving forward, the case will proceed to an expedited trial scheduled for November 2026. Stumpe's legal team may continue to explore options for appeal after the trial concludes, depending on the outcome.
The court's ruling reinforces the enforceability of noncompetition agreements in Delaware, particularly in cases where the employee has consented to jurisdiction in the state. This sets a precedent for similar cases involving employment contracts and noncompetition clauses.
As the case unfolds, it will be closely watched by other companies and employees within the technology and life sciences sectors, as it may influence how noncompetition agreements are negotiated and enforced in the future.