D. McKinley (Mac) Measley


(302) 425-3093 F

Mac has been recognized as a “Rising Star” for business litigation by Super Lawyers.

Mac is a partner in the Corporate & Business Litigation Group and a former judicial law clerk on the Delaware Court of Chancery for Vice Chancellor Stephen P. Lamb.  His practice focuses on corporate and alternative entity litigation and commercial disputes before the Delaware Court of Chancery, the Delaware Superior Court, and the Delaware Supreme Court. 

His matters often involve shareholder class and derivative actions, disputes among boards of directors and large stockholders, contests for control of corporations or alternative entities, litigation among parties to merger agreements, and post-closing contract disputes involving claims to funds held in escrow and related tort claims.  Mac’s recent matters also include statutory proceedings authorized under Delaware’s business statutes, including appraisal litigation, director and stockholder books and records demands and litigation, and dissolution cases.    

Mac is also involved in emerging areas of Delaware law.  For example, since the 2014 adoption of Sections 204 and 205 of theDGCL, Mac has regularly advised companies regarding the validity of defective corporate acts and stock and initiated and defended litigation involving judicial ratification under Section 205.  Mac also serves on the Firm’s Executive Committee.

Professional Activities

  • American Bar Association

Representative Matters

  • Owen v. Cannon, 2015 WL 3819204 (Del. Ch. June 17, 2015)
  • Mens Wearhouse Inc. v. Wildrick, C.A. No. 9383-VCL (Del. Ch. Feb. 25, 2014)
  • Kahn v. M&F Worldwide Corp., 88 A.3d 635 (Del. 2014)
  • In re Answers Corp. S’holders Litig., 2014 WL 448427 (Del. Ch. Feb. 3, 2014)
  • High River L.P. v. Dell Inc., C.A. No. 8762-CS (Del. Ch. Aug. 16, 2013)
  • In re MFW S’holders Litig., 67 A.3d 496 (Del. Ch. 2013)
  • Anvil Holding Corp. v. Iron Acquisition Co., 2013 WL 2249655 (Del. Ch. 2013)
  • Gerber v. Enterprise Prods. Holdings, LLC, 67 A.3d 400 (Del. 2012)
  • In re Micromet, Inc. S’holders Litig., 2012 WL 681785 (Del. Ch. Feb. 29, 2012)
  • Brinckerhoff v. Enbridge Energy Co., 67 A.3d 369 (Del. 2011)
  • In re OPENLANE, Inc., 2011 WL 4599662 (Del. Ch. Sept. 30, 2011)
  • Lonergan v. EPE Holdings, LLC, 5 A.3d 1008 (Del. Ch. 2010)
  • Forgo v. Health Grades, Inc., C.A. No. 5716-VCS (Sept. 3, 2010)


16 Morris Nichols Attorneys Selected for Inclusion in 2017 Delaware Super Lawyers

Wilmington, DE (May 12, 2017) – Sixteen Morris Nichols attorneys have been selected for inclusion to the 2017 Delaware Super Lawyers list.  William M. Lafferty was named to the “Top 10” list for Delaware.  In addition, attorneys Eric S. Klinger-Wilensky, Kimberly Gill McKinnon, D. McKinley (Mac) Measley, and Curtis S. Miller were... Continue Reading

Benchmark Litigation Recognizes Morris Nichols in 2017 Rankings

Wilmington, DE (October 24, 2016) – Benchmark Litigation has released its 10th anniversary guide to the leading litigation firms in the United States. The 2017 publication again ranked Morris Nichols “Highly Recommended” for Delaware with Benchmark noting the firm’s reputation “one of the most respected presences in the Delaware legal... Continue Reading

17 Morris Nichols Attorneys Selected for Inclusion in 2016 Delaware Super Lawyers

Wilmington, DE (May 13, 2016) – Seventeen Morris Nichols attorneys have been selected for inclusion to the 2016 Delaware Super Lawyers list.  Jack B. Blumenfeld was named to the “Top 10” list for Delaware.  In addition, attorneys Eric S. Klinger-Wilensky, D. McKinley (Mac) Measley, Curtis S. Miller, and Matthew R. Clark were recognized as... Continue Reading

Morris Nichols Elects Mac Measley, Andrew Remming, Jason Russell as Partners; Karl Randall as Special Counsel

Wilmington, DE (January 4, 2016) – Morris, Nichols, Arsht & Tunnell LLP is pleased to announce that Mac Measley, Andrew Remming and Jason Russell have been elected partners, and that Karl Randall has been promoted to special counsel, effective January 1, 2016. “We are proud to congratulate Mac, Andrew, Jason, and Karl on reaching these... Continue Reading