Biography
Sisi’s practice focuses on U.S. export controls and national security–related trade regulations, including the Export Administration Regulations (EAR), the International Traffic in Arms Regulations (ITAR), and U.S. economic sanctions administered by the Office of Foreign Assets Control (OFAC), and foreign direct investment reviews before the Committee on Foreign Investment in the United States (CFIUS). She regularly participates in advising strategic and financial investors on regulatory risk assessment, transaction structuring, and compliance considerations in cross-border mergers, acquisitions, and financings. Sisi has extensive experience conducting export control, sanctions, and CFIUS diligence, advising on classification, licensing, and authorization requirements, and supporting compliance strategies for companies operating in highly regulated and technology-driven sectors, including technology, defense, infrastructure, and life sciences. She works closely with deal teams and clients to identify and address regulatory issues early in the transaction lifecycle and to support efficient execution and closing.
Sisi has been part of the teams advising:
- Advent International along with Warburg Pincus and other minority shareholders, in its $2.35 billion sale of Encora Digital Inc.; and its portfolio company Cobham Ultra Group in its $1.55 billion sale of Ultra PCS to Eaton Corporation
- Blackstone in its minority investment in Cyera Ltd.
- Brookfield Asset Management in its $900 million acquisition of Fosber
- CPP Investments in Novolex’s $6.7 billion combination with Pactiv Evergreen
- Dycom Industries in its $1.95 billion acquisition of Power Solutions
- EQT Transition Infrastructure in its acquisition of Scale Microgrids and its portfolio company WASH Multifamily Laundry Systems in its sale of WASH to Northleaf Capital Partners and AVALT
- Greater Sum Ventures in its acquisition of MyVenue Pty Ltd.
- Hologic Capital Holdings, Inc. in its $350 million acquisition of Gynesonics, Inc.
- The Home Depot, Inc. in its $5.5 billion acquisition of GMS Inc.
- Montagu in its acquisition of Tyber Medical and combination with Intech and Resolve
- Morgan Stanley & Co. International plc and two major financial institutions, as representatives of several underwriters, in a $730 million senior unsecured notes offering by Parker-Hannifin Corporation and as representative of the initial purchasers, in a $360 million offering by Kohl’s Corporation of its senior secured notes due 2030
- Pacific Avenue Capital Partners, alongside Cameron Ashley Building Products, in its acquisition of Therm-All
- PSG and 2ndWave Software in its acquisition of JAMS from Fortra (a portfolio company of TA Associates)
- Sanofi in its $9.5 billion acquisition of Blueprint Medicines and its $2.2 billion acquisition of Dynavax Technologies
- TCV in its sale of OneSource Virtual, Inc.
- TPG Inc. in its $660 million acquisition of Peppertree Capital Management, Inc. and Irth Solutions’ acquisition of Boreal Information Strategies 2014, Inc.
- Underwriters in connection with The Williams Companies $1.5 billion bond offering
- Willis Towers Watson PLC in its $632 million sale of TRANZACT to GTCR and Recognize
Prior to joining Weil, Sisi worked at another major Washington, D.C. based law firm.
Sisi received her J.D. from the University of Maryland Francis King Carey School of Law, and her B.A., cum laude, from the University of Pittsburgh. While in law school, Sisi served as a judicial extern to the Honorable Robert N. McDonald of the Court of Appeals of Maryland.
Sisi is a native Mandarin speaker.