Jason Kropp is a partner in the Corporate Practice Group. He practices corporate and securities law, with an emphasis on public offerings and public company representation, and representation of venture-backed companies and venture capital investors. Mr. Kropp has successfully represented clients in a variety of complex transactions and has built a substantial practice working with local, national and international clients, advising start-ups and venture-backed companies, venture capital funds, underwriters, mature public companies and buyers and sellers in mergers and acquisitions.


A significant portion of Mr. Kropp's practice consists of counseling public companies on ongoing corporate legal matters, including federal securities reporting requirements and corporate governance issues. He represents issuers and underwriters in capital markets financings. His public offering experience includes initial public offerings, follow-on equity offerings and convertible debt offerings. Mr. Kropp also advises early stage private companies on formation and financing issues and equity and compensation matters. His venture capital experience includes representing investors and issuers in initial- and late-stage venture capital financings. In addition, Mr. Kropp represents public and private companies in mergers and acquisitions, including acquisitions of both public and private companies by public companies and financial buyers. Learn more about Mr. Kropp’s practice and how he can support your startup on WilmerHaleLaunch.com.

Prior to attending law school, Mr. Kropp worked as a legislative and press aide in the office of United States Representative William Delahunt, and as a legislative intern in the office of United States Representative Gerry Studds.

Community Involvement

Mr. Kropp represents pro bono client, Grist.org, an online environmental news and opinion magazine. He is also a member of the Board of Visitors of the Walnut Hill School in Natick, Massachusetts and a member of the Board of Directors of the March of Dimes, Massachusetts Chapter and Coaching4Change, whose innovative model creates opportunities for high school students to improve their math, literacy and leadership skills by turning them into coaches and teachers of younger kids.


    • GentiBio in its $157 million Series A funding round
    • Ameresco in its $140 million public offering of common stock
    • Acacia Communications, Inc. in a definitive merger agreement with Cisco Systems, Inc. for Cisco to acquire Acacia for $3.1 billion in cash and assumed equity awards
    • Corvia Medical in its $35 million strategic investment by Edwards Lifesciences
    • EverQuote in its $85 million IPO
    • A global institutional investor in several financings of DraftKings and its merger of equals with FanDuel
    • Acacia Communications in its $119 million IPO and $450 million follow-on public offering
    • Barkbox in a $60 million funding round
    • ASICS Corporation in its acquisition of FitnessKeeper
    • Corvia Medical in its exclusive option-to-purchase transaction with an undisclosed strategic partner
    • A global institutional investor in a $1.2 billion preferred stock financing of Uber Technologies 
    • A global institutional investor in a $112 million preferred stock financing of One Kings Lane
    • A global institutional investor in an investment in Payoneer
    • Karyopharm in its $114 million follow-on public offering of common stock
    • Epizyme in its $150 million follow-on public offering of common stock
    • Demandware in its $73 million follow-on public offering of common stock
    • Endurance International Group in its $252 million initial public offering and $189 million and $264 million follow-on offerings 
    • Kiva Systems in its $775 million acquisition by Amazon.com
    • General Catalyst in the sale of portfolio company Locu to GoDaddy
    • ABRY Partners in its acquisition of NSM Insurance
    • NSM Insurance in its sale to American International Group, Inc. 
    • Link Medicine in its sale of neuroscience assets to AstraZeneca
    • InfoMedics in its sale to Physicians Interactive 
    • Ameresco, Accretive Health, LogMeIn, Cynosure and Eyetech Pharmaceuticals in their initial public offerings
    • Millennium Pharmaceuticals in its $8.8 billion acquisition by Takeda Pharmaceuticals
    • EqualLogic in “dual track” IPO/sale, resulting in $1.4 billion acquisition by Dell—then the largest cash purchase price in history for a private VC-backed company
    • General Catalyst Partners, Novartis Venture Fund, Matrix Partners, New Leaf Venture Partners, Sofinnova Ventures and various other financial and strategic investors in numerous private placement financings
    • Deutsche Bank Securities as lead underwriter in the initial public offering of Targacept, Inc.
    • Amdocs Limited, LIN TV Corp. and Lincare Holdings in 144A offerings of convertible notes
    • Morgan Stanley as lead underwriter in follow-on public offering of common stock by Barrier Therapeutics, Inc.
    • Lucent Technologies Inc. in its acquisition of assets of Riverstone Networks, Inc.; DoubleClick in its acquisition by Hellman & Friedman; Amdocs Limited in its acquisitions of Qpass Inc. and DSTInnovis from DST Systems, Inc.
    • Exo Therapeutics, Jebbit, Freight Farms, myLINGO, Rest Devices, Corvia Medical, Fractyl Laboratories, Ember Therapeutics, Blackwave, Intercept Pharmaceuticals, Link Medicine, Partsearch Technologies, Evident Software, and other private companies in various venture capital financings


  • Recognized in the 2015–2021 editions of Chambers USA: America's Leading Lawyers for Business for his Corporate/M&A practice, with sources describing him as "really phenomenal in the corporate and securities area" and that "he has a great temperament, he's a great negotiator and he keeps his cool in situations."
  • Named to Boston Magazine’s inaugural Top Lawyers list in 2021 in the area of corporate law.
  • Recommended in the area of M&A: Middle-Market and Venture Capital and Emerging Companies in the 2018 and 2019 editions of The Legal 500 United States.
  • Recognized as a 2014 Boston Rising Star by The National Law Journal, a list honoring 40 outstanding lawyers age 40 or under who "have accomplished big feats" and are also "improving their communities." 
  • Named to M&A Advisor's 2014 "40 Under 40" list.
  • Named a 2013–2016 "Massachusetts Super Lawyers' Rising Star" in the area of business/corporate.
  • Recognized as a 2011 "Up & Coming Lawyer" by Massachusetts Lawyers Weekly.

Insights & News


  • Education

    • JD, Boston College Law School

    • BA, The George Washington University

  • Admissions

    • Massachusetts

    • New York