Cravath Publishes Winter 2026 Issue of Alumni Journal
Annmarie M. Terraciano advises on environmental matters relating to mergers and acquisitions, capital markets transactions, financings and other business transactions, as well as on environmental‑related proceedings and indemnification disputes.
Ms. Terraciano also counsels companies on matters relating to Environmental, Social and Governance (“ESG”) concerns, including shareholder engagement, sustainability reporting and disclosure and diligence and integration matters.
Ms. Terraciano has worked on hundreds of transactions across all industries in the U.S. and internationally, including deals in heavy manufacturing; chemical production and refining; pulp and paper; iron and steel; mining; oil and gas exploration, refining, transport and services; power generation; pharmaceuticals; electronics; telecommunications; food and beverage production; consumer goods; insurance; commercial real estate and retail chains. She also provides counseling on environmental compliance matters; environmental proceedings; environmental indemnification disputes; and environmental aspects of periodic reporting obligations under securities laws.
Ms. Terraciano has been recognized for her transactional and regulatory work in the environmental area by, among others, Chambers USA, The Legal 500 US, The Best Lawyers in America and Super Lawyers.
Ms. Terraciano was born in New York. She received a B.A. cum laude from Wellesley College, in 1989, an M.S. from the University of Wisconsin – Madison in 1994 and a J.D. from Columbia Law School in 1998, where she was a Harlan Fiske Stone Scholar and an Articles Editor of the Human Rights Law Review.
Ms. Terraciano joined Cravath in 2001 and was named a senior attorney in 2012 and of counsel in 2025. Prior to joining Cravath, she practiced environmental litigation at a law firm in New York.
Ms. Terraciano also counsels companies on matters relating to Environmental, Social and Governance (“ESG”) concerns, including shareholder engagement, sustainability reporting and disclosure and diligence and integration matters.
Ms. Terraciano has worked on hundreds of transactions across all industries in the U.S. and internationally, including deals in heavy manufacturing; chemical production and refining; pulp and paper; iron and steel; mining; oil and gas exploration, refining, transport and services; power generation; pharmaceuticals; electronics; telecommunications; food and beverage production; consumer goods; insurance; commercial real estate and retail chains. She also provides counseling on environmental compliance matters; environmental proceedings; environmental indemnification disputes; and environmental aspects of periodic reporting obligations under securities laws.
Ms. Terraciano has been recognized for her transactional and regulatory work in the environmental area by, among others, Chambers USA, The Legal 500 US, The Best Lawyers in America and Super Lawyers.
Ms. Terraciano was born in New York. She received a B.A. cum laude from Wellesley College, in 1989, an M.S. from the University of Wisconsin – Madison in 1994 and a J.D. from Columbia Law School in 1998, where she was a Harlan Fiske Stone Scholar and an Articles Editor of the Human Rights Law Review.
Ms. Terraciano joined Cravath in 2001 and was named a senior attorney in 2012 and of counsel in 2025. Prior to joining Cravath, she practiced environmental litigation at a law firm in New York.
Education
-
J.D., 1998, Columbia Law SchoolHarlan Fiske Stone Scholar
-
M.S., 1994, University of Wisconsin - Madison
-
B.A., 1989, Wellesley Collegecum laude
Admitted In
- New York
Professional Affiliations
American Bar Association
New York City Bar Association
- Member of the Committee on International Environmental Law
Rankings
Best Lawyers in America
- Environmental Law (2026‑2010)
Chambers USA
- Environment: Mainly Transactional - New York (2026‑2012)
The Legal 500 US
- Environment: Transactional (2026-2017, 2015, 2014, 2013, 2011)
Super Lawyers - New York
- Environmental (2024‑2012)
Deals & Cases
June 29, 2026
Martin Marietta’s $13.5 Billion Combination with Lhoist North America
On June 29, 2026, Martin Marietta Materials, Inc. (“Martin Marietta”), a leading supplier of aggregates and other building materials, announced that it has entered into a definitive agreement to combine with Lhoist North America, Inc. (“Lhoist North America”), a leading producer of hi‑calcium lime, dolomitic lime and industrial mineral products and a subsidiary of Lhoist Group, for $13.5 billion in cash and shares of Martin Marietta common stock. The transaction is expected to be completed in the second half of 2026, subject to regulatory approvals. Cravath is representing Martin Marietta in connection with the transaction.
Deals & Cases
June 16, 2026
Olin Corporation’s Merger of Equals with Huntsman Corporation
On June 16, 2026, Olin Corporation and Huntsman Corporation announced that they have entered into a definitive agreement to combine in an all-stock merger of equals to create a $12+ billion North American chemicals leader. Under the terms of the agreement, Huntsman shareholders will receive 0.5476 shares in Olin for every one share of Huntsman. Upon completion of the transaction, Olin shareholders will own approximately 54.5% and Huntsman shareholders will own approximately 45.5% of the combined company, which will be renamed OlinHuntsman Corporation. Upon closing of the transaction, current Olin President and Chief Executive Officer, Ken Lane, will serve as Chief Executive Officer of OlinHuntsman. Current Chairman, President and Chief Executive Officer of Huntsman, Peter Huntsman, will serve as non-executive Chairman of OlinHuntsman’s Board of Directors. OlinHuntsman’s Board of Directors will consist of ten members, with equal representation from Olin and Huntsman. The transaction is expected to close in the first half of 2027, subject to the satisfaction of customary closing conditions, including receipt of required regulatory approvals and the approval of Olin’s shareholders and Huntsman’s shareholders. Cravath is representing Olin Corporation in connection with the transaction.
Deals & Cases
June 10, 2026
Murphy Oil USA, Inc.’s High‑Yield Senior Notes Offering
Cravath represented the initial purchasers in connection with the $500 million 144A/Reg. S high‑yield senior notes offering of Murphy Oil USA, Inc., a wholly owned subsidiary of Murphy USA Inc. Murphy USA is an operator of fuel retail stores and gas stations in the United States. The transaction closed on May 27, 2026.
Deals & Cases
March 31, 2026
Biogen’s $5.6 Billion Acquisition of Apellis
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.
Deals & Cases
March 23, 2026
Essential Utilities, Inc.’s Registered Senior Notes Offering
Cravath represented the underwriters in connection with the $500 million registered senior notes offering of Essential Utilities, Inc., a holding company for regulated utilities providing water, wastewater or natural gas services to an estimated 5.5 million people in Pennsylvania, Ohio, Texas, Illinois, North Carolina, New Jersey, Indiana, Virginia, and Kentucky under the Aqua and Peoples brands. The transaction closed on March 9, 2026.
Firm News
November 20, 2025
Cravath Announces New Partners and Of Counsels
Cravath has elected the following new partners, who will become members of the Firm on January 1, 2026:
Annmarie M. Terraciano advises on environmental matters relating to mergers and acquisitions, capital markets transactions, financings and other business transactions, as well as on environmental‑related proceedings and indemnification disputes.
Ms. Terraciano also counsels companies on matters relating to Environmental, Social and Governance (“ESG”) concerns, including shareholder engagement, sustainability reporting and disclosure and diligence and integration matters.
Ms. Terraciano has worked on hundreds of transactions across all industries in the U.S. and internationally, including deals in heavy manufacturing; chemical production and refining; pulp and paper; iron and steel; mining; oil and gas exploration, refining, transport and services; power generation; pharmaceuticals; electronics; telecommunications; food and beverage production; consumer goods; insurance; commercial real estate and retail chains. She also provides counseling on environmental compliance matters; environmental proceedings; environmental indemnification disputes; and environmental aspects of periodic reporting obligations under securities laws.
Ms. Terraciano has been recognized for her transactional and regulatory work in the environmental area by, among others, Chambers USA, The Legal 500 US, The Best Lawyers in America and Super Lawyers.
Ms. Terraciano was born in New York. She received a B.A. cum laude from Wellesley College, in 1989, an M.S. from the University of Wisconsin – Madison in 1994 and a J.D. from Columbia Law School in 1998, where she was a Harlan Fiske Stone Scholar and an Articles Editor of the Human Rights Law Review.
Ms. Terraciano joined Cravath in 2001 and was named a senior attorney in 2012 and of counsel in 2025. Prior to joining Cravath, she practiced environmental litigation at a law firm in New York.
Ms. Terraciano also counsels companies on matters relating to Environmental, Social and Governance (“ESG”) concerns, including shareholder engagement, sustainability reporting and disclosure and diligence and integration matters.
Ms. Terraciano has worked on hundreds of transactions across all industries in the U.S. and internationally, including deals in heavy manufacturing; chemical production and refining; pulp and paper; iron and steel; mining; oil and gas exploration, refining, transport and services; power generation; pharmaceuticals; electronics; telecommunications; food and beverage production; consumer goods; insurance; commercial real estate and retail chains. She also provides counseling on environmental compliance matters; environmental proceedings; environmental indemnification disputes; and environmental aspects of periodic reporting obligations under securities laws.
Ms. Terraciano has been recognized for her transactional and regulatory work in the environmental area by, among others, Chambers USA, The Legal 500 US, The Best Lawyers in America and Super Lawyers.
Ms. Terraciano was born in New York. She received a B.A. cum laude from Wellesley College, in 1989, an M.S. from the University of Wisconsin – Madison in 1994 and a J.D. from Columbia Law School in 1998, where she was a Harlan Fiske Stone Scholar and an Articles Editor of the Human Rights Law Review.
Ms. Terraciano joined Cravath in 2001 and was named a senior attorney in 2012 and of counsel in 2025. Prior to joining Cravath, she practiced environmental litigation at a law firm in New York.
Education
-
J.D., 1998, Columbia Law SchoolHarlan Fiske Stone Scholar
-
M.S., 1994, University of Wisconsin - Madison
-
B.A., 1989, Wellesley Collegecum laude
Admitted In
- New York
Professional Affiliations
American Bar Association
New York City Bar Association
- Member of the Committee on International Environmental Law
Rankings
Best Lawyers in America
- Environmental Law (2026‑2010)
Chambers USA
- Environment: Mainly Transactional - New York (2026‑2012)
The Legal 500 US
- Environment: Transactional (2026-2017, 2015, 2014, 2013, 2011)
Super Lawyers - New York
- Environmental (2024‑2012)
Deals & Cases
June 29, 2026
Martin Marietta’s $13.5 Billion Combination with Lhoist North America
On June 29, 2026, Martin Marietta Materials, Inc. (“Martin Marietta”), a leading supplier of aggregates and other building materials, announced that it has entered into a definitive agreement to combine with Lhoist North America, Inc. (“Lhoist North America”), a leading producer of hi‑calcium lime, dolomitic lime and industrial mineral products and a subsidiary of Lhoist Group, for $13.5 billion in cash and shares of Martin Marietta common stock. The transaction is expected to be completed in the second half of 2026, subject to regulatory approvals. Cravath is representing Martin Marietta in connection with the transaction.
Deals & Cases
June 16, 2026
Olin Corporation’s Merger of Equals with Huntsman Corporation
On June 16, 2026, Olin Corporation and Huntsman Corporation announced that they have entered into a definitive agreement to combine in an all-stock merger of equals to create a $12+ billion North American chemicals leader. Under the terms of the agreement, Huntsman shareholders will receive 0.5476 shares in Olin for every one share of Huntsman. Upon completion of the transaction, Olin shareholders will own approximately 54.5% and Huntsman shareholders will own approximately 45.5% of the combined company, which will be renamed OlinHuntsman Corporation. Upon closing of the transaction, current Olin President and Chief Executive Officer, Ken Lane, will serve as Chief Executive Officer of OlinHuntsman. Current Chairman, President and Chief Executive Officer of Huntsman, Peter Huntsman, will serve as non-executive Chairman of OlinHuntsman’s Board of Directors. OlinHuntsman’s Board of Directors will consist of ten members, with equal representation from Olin and Huntsman. The transaction is expected to close in the first half of 2027, subject to the satisfaction of customary closing conditions, including receipt of required regulatory approvals and the approval of Olin’s shareholders and Huntsman’s shareholders. Cravath is representing Olin Corporation in connection with the transaction.
Deals & Cases
June 10, 2026
Murphy Oil USA, Inc.’s High‑Yield Senior Notes Offering
Cravath represented the initial purchasers in connection with the $500 million 144A/Reg. S high‑yield senior notes offering of Murphy Oil USA, Inc., a wholly owned subsidiary of Murphy USA Inc. Murphy USA is an operator of fuel retail stores and gas stations in the United States. The transaction closed on May 27, 2026.
Deals & Cases
March 31, 2026
Biogen’s $5.6 Billion Acquisition of Apellis
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.
Deals & Cases
March 23, 2026
Essential Utilities, Inc.’s Registered Senior Notes Offering
Cravath represented the underwriters in connection with the $500 million registered senior notes offering of Essential Utilities, Inc., a holding company for regulated utilities providing water, wastewater or natural gas services to an estimated 5.5 million people in Pennsylvania, Ohio, Texas, Illinois, North Carolina, New Jersey, Indiana, Virginia, and Kentucky under the Aqua and Peoples brands. The transaction closed on March 9, 2026.
Firm News
November 20, 2025
Cravath Announces New Partners and Of Counsels
Cravath has elected the following new partners, who will become members of the Firm on January 1, 2026:
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