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Cravath Publishes Winter 2026 Issue of Alumni Journal

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News & Insights

Biogen’s $5.6 Billion Acquisition of Apellis

March 31, 2026

On March 31, 2026, Biogen Inc. and Apellis Pharmaceuticals, Inc. announced that the companies have entered into a definitive agreement under which Biogen has agreed to acquire all outstanding shares of Apellis for $41.00 per share in cash at closing, or approximately $5.6 billion. Apellis stockholders will also receive a nontransferable CVR for each Apellis share held, entitling the holder to receive two payments of $2 per share each, contingent on certain annual global net sales thresholds being met for SYFOVRE®. Cravath is representing Biogen in connection with the transaction.

The Cravath team is led by partners Aaron M. Gruber, Bethany A. Pfalzgraf and Ryan J. Wichtowski and includes associates Gene Choi, Elise Zhou, Jerry A. Zhu, Jessica Early, Rohan Sagar Naik and Joel K. Adu‑Quaye on M&A matters; of counsel Kathryn‑Ann Stamm and associates M. Noa Ma and Sarah R. Brathwaite on intellectual property matters; partner Jonathan J. Katz, senior attorney Aaron S. Cha and associate Matthew S. Johnson on executive compensation and benefits matters; partner Lauren Angelilli and associate Frederick Schemel on tax matters; partner Margaret T. Segall and associate Lavinia M. Hecht on antitrust matters; and partner Matthew Morreale, of counsels Annmarie M. Terraciano and Joyce Law and senior attorney Lauren Piechocki on environmental and real estate matters. Crawford Rundlett also worked on M&A matters, and Yasmeen Shrestha worked on tax matters.

Related Practices & Industries

  • Corporate
  • Mergers and Acquisitions
  • IP and Strategic Tech Transactions
  • Executive Compensation and Benefits
  • Tax
  • Antitrust
  • Environmental
  • Healthcare and Life Sciences

People

Photo
Name
Aaron M. Gruber
Title
Corporate
Title
Partner
Email
agruber@cravath.com
Phone
+1-212-474-1456
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    Education

    • J.D., 2007, Stanford Law School
      Order of the Coif
    • M.Phil., 2004, University of Cambridge
      Gates Cambridge Scholar
    • B.S., 2003, Yale College
      summa cum laude

    Admitted In

    • New York
    Photo
    Name
    Bethany A. Pfalzgraf
    Title
    Corporate
    Title
    Partner
    Email
    bpfalzgraf@cravath.com
    Phone
    +1-212-474-1728
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      Education

      • J.D., 2014, Columbia Law School
        Harlan Fiske Stone Scholar
      • B.A., 2010, Boston College
        College of Arts and Sciences Honors Program, cum laude

      Admitted In

      • New York
      Photo
      Name
      Ryan J. Wichtowski
      Title
      Corporate
      Title
      Partner
      Email
      rwichtowski@cravath.com
      Phone
      +1-212-474-1507
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        Education

        • J.D., 2018, Duke Law School
          cum laude
        • B.S., 2015, Fordham University
          summa cum laude

        Admitted In

        • New York
        Photo
        Name
        Jonathan J. Katz
        Title
        Executive Compensation and Benefits
        Title
        Partner
        Email
        jkatz@cravath.com
        Phone
        +1-212-474-1538
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          Education

          • LL.M., 2013, New York University School of Law
          • J.D., 2007, Benjamin N. Cardozo School of Law
            Order of the Coif, Dean's Distinguished Scholar, summa cum laude
          • B.S., 2003, Cornell University

          Admitted In

          • New York
          Name
          Lauren Angelilli
          Title
          Tax
          Title
          Partner
          Email
          langelilli@cravath.com
          Phone
          +1-212-474-1016
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            Education

            • J.D., 2000, Harvard Law School
              cum laude
            • B.S., 1996, The Wharton School of the University of Pennsylvania
              magna cum laude

            Admitted In

            • New York
            Photo
            Name
            Margaret T. Segall
            Title
            Litigation
            Title
            Partner
            Email
            msegall@cravath.com
            Phone
            +1-212-474-1231
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              Education

              • J.D., 2008, Harvard Law School
                cum laude
              • A.B., 2003, Harvard College
                magna cum laude

              Admitted In

              • New York
              Photo
              Name
              Matthew Morreale
              Title
              Corporate
              Title
              Partner
              Email
              mmorreale@cravath.com
              Phone
              +1-212-474-1534
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                Education

                • J.D., 1997, Columbia Law School
                  Harlan Fiske Stone Scholar
                • M.S., 1994, University of Pennsylvania
                • B.A., 1990, University of Pennsylvania
                • B.A.S., 1990, University of Pennsylvania

                Admitted In

                • New York
                Photo
                Name
                Kathryn-Ann Stamm
                Title
                Corporate
                Title
                Of Counsel
                Email
                kstamm@cravath.com
                Phone
                +1-212-474-1979
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                  Education

                  • J.D., 2016, Cornell Law School
                  • LL.M., 2016, City University of Hong Kong
                  • Master II, 2016, University Paris 1 Pantheon-Sorbonne
                  • Master I, 2013, University Paris 1 Pantheon-Sorbonne
                  • LL.B., 2013, University Paris 1 Pantheon-Sorbonne
                  • LL.B., 2013, King's College London
                    First Class Honors.

                  Admitted In

                  • New York
                  Photo
                  Name
                  Annmarie M. Terraciano
                  Title
                  Corporate
                  Title
                  Of Counsel
                  Email
                  aterraciano@cravath.com
                  Phone
                  +1-212-474-1366
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                    Education

                    • J.D., 1998, Columbia Law School
                      Harlan Fiske Stone Scholar
                    • M.S., 1994, University of Wisconsin - Madison
                    • B.A., 1989, Wellesley College
                      cum laude

                    Admitted In

                    • New York
                    Photo
                    Name
                    Joyce Law
                    Title
                    Corporate
                    Title
                    Of Counsel
                    Email
                    jlaw@cravath.com
                    Phone
                    +1-212-474-1066
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                      Education

                      • J.D., 1997, Boston University School of Law
                      • B.Comm., 1994, University of Alberta
                        Distinction

                      Admitted In

                      • New York
                      Photo
                      Name
                      Aaron S. Cha
                      Title
                      Executive Compensation and Benefits
                      Title
                      Senior Attorney
                      Email
                      acha@cravath.com
                      Phone
                      +1-212-474-1944
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                        Education

                        • LL.M., 2013, New York University School of Law
                        • J.D., 2012, Loyola Law School Los Angeles
                        • B.S., 2004, University of California, San Diego

                        Admitted In

                        • New York
                        • California
                        Name
                        Lauren Piechocki
                        Title
                        Corporate
                        Title
                        Practice Area Attorney
                        Email
                        lpiechocki@cravath.com
                        Phone
                        +1-212-474-1875
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                          Education

                          • J.D., 2012, Hofstra University School of Law
                          • B.A., 2005, Syracuse University
                            Dean's Scholar Maxwell Citizen Education Conference Scholar, cum laude

                          Admitted In

                          • New York

                          Related News & Insights

                          Deals & Cases

                          March 09, 2026

                          Talkspace’s Acquisition by UHS

                          On March 9, 2026, Universal Health Services, Inc. (“UHS”) announced that it has entered into a definitive agreement to acquire Talkspace, Inc. (“Talkspace”) for $5.25 per share. The enterprise value for the transaction is approximately $835 million. Cravath is representing Talkspace in connection with the transaction.

                          Deals & Cases

                          February 18, 2026

                          Tenax’s Merger with Air

                          On February 17, 2026, Tenax Aerospace Acquisition, LLC (“Tenax”) and Air Industries Group (“Air”) jointly announced that they have entered into an Agreement and Plan of Merger to combine Tenax’s special mission aviation business with Air’s precision aerospace manufacturing business. At the time of the merger, Air will issue shares of its common stock to holders of Tenax membership units. After the closing, Tenax shareholders are expected to own approximately 95% of Air’s outstanding shares while existing Air shareholders are expected to own approximately 5%, and the combined company expects to remain listed on the NYSE American under the symbol AIRI. Cravath is representing Tenax in connection with the transaction.

                          Deals & Cases

                          February 17, 2026

                          Kennedy Wilson’s Acquisition by Consortium Led by William McMorrow and Fairfax

                          On February 17, 2026, Kennedy‑Wilson Holdings, Inc. (“Kennedy Wilson”) and Fairfax Financial Holdings Limited (“Fairfax”) jointly announced that Kennedy Wilson has entered into a definitive agreement to be acquired, in an all cash‑transaction, by an entity affiliated with a consortium led by William McMorrow, Chairman and Chief Executive Officer of Kennedy Wilson, and certain other senior executives of Kennedy Wilson (collectively, the “KW Management Group”), together with Fairfax (collectively, the “Consortium”).

                          Deals & Cases

                          February 17, 2026

                          MTN’s Proposed $6.2 Billion Acquisition of IHS

                          On February 17, 2026, MTN Group Limited (“MTN”), Africa’s largest mobile network operator, announced that it has entered into an agreement with IHS Holding Limited (“IHS”), one of the largest independent owners, operators and developers of shared communications infrastructure in the world, to acquire the remaining shares of IHS not already owned by MTN in an all‑cash transaction at an offer price of $8.50 per IHS share, which implies an enterprise value of $6.2 billion. The structure of the transaction is intended such that, upon completion of IHS’ announced disposals of its Latin American businesses, MTN will acquire 100% of IHS’ African tower portfolio. Following the completion of the transaction, IHS will be de‑listed from the New York Stock Exchange. Cravath is representing MTN in connection with the transaction.

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