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Sarah A. Horstmann


3300 Wells Fargo Center, 90 South Seventh Street, Minneapolis, MN 55402-4140

Bar Admissions

Minnesota, 2007
U.S. District Court
  • Minnesota, 2007
U.S. Court of Appeals
  • Eighth Circuit, 2012

Leadership & Community

  • American Bar Association: Business Torts & Unfair Competition Committee: Co-Chair
  • Sedona Conference Working Group on Trade Secrets
  • Ellevate Network
  • Minnesota State Bar Association
  • Hennepin County Bar Association


Sarah Horstmann represents clients in complex litigation matters, including business torts and contract disputes, with a particular emphasis on non-competition and trade secret litigation. She has extensive experience helping clients protect their valuable business assets when an employee, a former employee, or a competitor steals confidential information or violates a non-competition or non-solicitation covenant. Sarah has practiced in state and federal courts across the country as well as the Minnesota appellate courts and Eighth Circuit Court of Appeals.

Sarah has been recognized as a North Star Lawyer by the Minnesota State Bar Association for her pro bono service contributions, which include representing clients in unemployment insurance appeals through the Minnesota State Bar Association's Appellate Practice Section.

Sarah is a magna cum laude graduate of the University of Minnesota Law School, where she was a staff member and editor of the Minnesota Journal of International Law. She earned her bachelor's degree with honors in international studies from Kenyon College in Gambier, Ohio


Unfair Competition, Trade Secrets, and Employment Litigation

  • Seshadri Raju, M.D., P.A. v. Medtronic, Inc., Case No. 3:17-cv-357, 2021 WL 1232102 (S.D. Miss. March 31, 2021). Successfully obtained summary judgment dismissing Plaintiff's trade secrets misappropriation claims, and preventing Plaintiff from seeking statutory damages or attorney's fees on copyright infringement claims. Also obtained a ruling striking Plaintiff's expert witness reports, while denying Plaintiff's request to strike Defendant's expert report.
  • Werner v. Works Computing, Inc., (D. Neb. May 31, 2018). Obtained dismissal of non-compete dispute based on forum selection clause in employment agreement.
  • Medtronic, Inc. v. Doerr, et al., No. 02-CV-13-4759, 2015 Minn. App. Unpub. LEXIS 137 (Minn. Ct. App. Feb. 9, 2015). Won appeal affirming preliminary injunction against two former employees of client for violating non-compete and confidentiality provisions of their employment agreements.
  • C.H. Robinson Worldwide, Inc. v. Lobrano, 695 F. 3d 758 (8th Cir. 2012). Obtained dismissal of lawsuit as barred by prior judgment.
  • Secured temporary restraining orders for medical device manufacturer in actions to enforce non-competes and other restrictive covenants.
  • Represented corporation in lawsuit brought by former CEO asserting breach of employment agreement and violations of Minnesota wage-related statutes.
  • Represented corporations in successful appeals to Minnesota Court of Appeals regarding application of Minnesota's unemployment compensation statutes.
  • Represented client in defamation action arising from online reviews posted by a competitor.

General Business Litigation

  • LEI Packaging LLC v. Emery Silfurtun, Inc., 2017 WL 3531512 (D. Minn. Aug. 16, 2017). Obtained judgment of over $4 million in dispute relating to design and installation of major piece of industrial equipment.
  • LEI Packaging LLC v. Emery Silfurtun, Inc., 2016 WL 4394153 (D. Minn. Aug. 16, 2016). Defeated motion to dismiss action for damages due to failure to properly design and install major piece of industrial equipment.
  • Varga v. U.S. Bank N.A., 2013 U.S. Dist. LEXIS 92729 (D. Minn. July 2, 2013). Obtained dismissal of multimillion-dollar business tort claims brought by receiver of Cayman Islands hedge funds.
  • Represented Minnesota company in contract dispute arising from the sale of its flour milling operations to Japanese company.
  • Represented Midwest-based company in contract dispute with international trading partner in China.

Product Liability Litigation

  • Represented major medical device company in nationwide litigation arising from voluntary product recall.
  • Defended putative nationwide class action alleging warranty and consumer fraud claims related to snowmobile engines.


Recognized on Minnesota Rising Stars list as part of the Super Lawyers® selection process, 2017 (Minnesota Rising Stars is a designation given to only 2.5 percent of Minnesota attorneys each year, based on a selection process that includes the recommendation of peers in the legal profession.)

Top Women Attorneys in Minnesota® list, 2018 (The annual edition of the Top Women Attorneys in Minnesota list features attorneys who received the highest point totals in the previous year's Minnesota Super Lawyers® and Rising Stars balloting, research, and blue ribbon review process.)

North Star Lawyer, Minnesota State Bar Association, 2012-2013 (North Star Lawyer is a designation that recognizes members who provide 50 hours or more of pro bono legal services in a calendar year.)

June 28, 2019


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