Michael J. Ulmer’s practice focuses on domestic and international private and public M&A transactions, joint ventures, general corporate advice, and private equity transactions.

His work extends to a broad range of industries and clients, including leading German corporates, Mittelstand companies, and domestic and international financial and strategic investors. He has vast experience in assisting clients from the Middle East with outbound investments.

Michael joined Cleary as a partner in 2016. He started his career at Hengeler Mueller and joined Allen & Overy as a partner in 2006.

Notable Experience

  • Alstom in its €15 billion merger with Siemens’ mobility business, including its rail traction drives business.

  • General Motors on the sale of its Opel/Vauxhall subsidiary and GM Financial’s European operations to PSA Group.

  • Bayer on the sale of its global environmental science consumer business to SBM Développement, Lyon.

  • The board of M.A.X. Automation AG, a German listed specialist supplier of automation solutions, in connection with the takeover offer by Gunther Holding, Hamburg.

  • Merck on the acquisition of the global microbiological monitoring business from listed Biotest AG. The transaction included companies and assets in Germany, Austria, Switzerland, France, the UK, Hungary, Italy, Japan and the U.S.

  • Swіss OC Oerlikon on the EUR486 million sale of its vacuum business Leybold to Atlas Copco.

  • Saudi Aramco on the establishment of a EUR2.75 billion joint venture in the synthetic rubber segment with Lanxess.

  • Lei Shing Hong Limited, Hong Kong, on the acquisition of the East German Mercedes sales network from Daimler Group.

  • Berkshire Hathaway Inc., on its EUR400 million acquisition of Detlev Louis Motorrad-Vertriebsgesellschaft mbH, Hamburg, one of the leading European specialists for motorcycle clothing and equipment.

  • Alliance Boots on the takeover offer for the leading European pharmaceutical wholesale company Andreae-Noris Zahn AG and the following squeeze-out of minorities.

  • M.A.X. Automation AG on the sale of Euroroll Dipl. Ing. K.-H. Beckmann GmbH & Co. KG, a German manufacturer of undriven roller conveyers based in Ascheberg.

  • Allergopharma GmbH & Co. KG, a member of the German pharmaceutical and chemical Merck Group, on the formation of a joint venture for developing mobile environmental exposure chambers.

  • The shareholders of Entelios AG, Munich, on the sale of all shares to EnerNOC, Inc., a NASDAQ listed provider of energy intelligence.

  • Masdar Group on the sale of its 11.7 megawatt solar park in Gotha, Germany, by Masdar PV GmbH to the investment fund CEE, based in Hamburg.

  • Merck on its GBP1.6 billion (US$2.6 billion) takeover offer for Luxembourg-based and LSE-listed AZ Electronics Materials.

  • Saudi Arabian solar company Sun & Life LLC, a subsidiary of ACWA Holding, on the acquisition of the insolvent solar division of the Flabeg Group.

  • M.A.X. Automation AG, Düsseldorf, on the acquisition of the AIM Group from Günther Holding GmbH.

  • ALBA Group, Berlin, on the sale of INTERSEROH NRW GmbH to TSR Recycling GmbH & Co. KG, Bottrop.

  • DIH Deutsche Industrie-Holding GmbH, Frankfurt am Main, on the sale of Hagen-based SinnLeffers GmbH to Wöhrl, a Nuremberg-based fashion retailer group.

  • Merck on the acquisition of Allergopharma Joachim Ganzer KG, a pharmaceutical company based in Reinbek.

  • Merck on the acquisition by way of auction of the IP portfolio of the insolvent Konarka Group, which was predominantly operating in the field of organic photovoltaics.

  • Merck on the acquisition of Biochrom AG, a pharmaceutical company based in Berlin.

  • Deutsche Telekom on an investment in and a cooperation with Spanish WLAN services provider Fon.

  • INTERSEROH SE on the reorganization of the INTERSEROH Group’s activities in the field of scrap metals.

See More


  • “Secondary Buyouts Dominate PE Exits,” Financier Worldwide, September 2017, co-author with Mirko von Bieberstein
  • Comment: OLG Düsseldorf, Urteil v. 17.3.2015, I-16 U 108/14, WuB 2016, 754
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  • Comment: OLG Stuttgart, Urteil v. 27.4.2015, 5 U 120/14, WuB 2016, 126
  • Comment: BGH, Urteil v. 12.4.2011, XI ZR 101/09, Düsseldorf, WuB IV A. 10.11
  • Comment: BGH, Urteil v. 12.10.2010, XI ZR 394/08, Düsseldorf, WuB IV A. 1.11
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  • Harmonisierungsschranken des Aktienrechts, Heidelberg, 1998 (Cf.: Großfeld, WM 1999, 1644; vc, Banca Borsa e Titoli di Credito, 1999, 831; as, AG 2000, R 260; Kieninger, ZEuP 2001, 202)
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  • Stiftungsrecht im Wandel, Wissenschaftsrecht 29 (1996) 178
  • Gesellschaftsformen deutschen Rechts - Vergleich mit der Rechtslage in Polen, Przeglad Sadowу 1996, 85 (übersetzt von A. Kidуba)
  • Die Anerkennung US-amerikanischer Gesellschaften in Deutschland, IPRax 1996, 100
  • Neue Tendenzen bei der Auslegung des Art. 16 Nr. 1 EuGVÜ, IPRax 1995, 72
  • IPR-Kurs an der Hague Academy of International Law, Jura 1993, 50