Joseph B. Conahan


Conahan, Joseph B.
Joseph Conahan's practice focuses on corporate and transactional matters, with an emphasis on mergers, acquisitions, restructurings and financing transactions, as well as on counseling public company clients on ongoing corporate legal matters, including federal securities reporting requirements and corporate governance issues.

Recent Highlights

Mr. Conahan has worked on teams that have represented:

  • Thermo Fisher Scientific Inc. in its 3(a)(9) debt exchange;
  • a diversified manufacturing company in the formation of a joint venture with combined revenues in excess of $1 billion and in several acquisitions of private company targets;
  • Constant Contact, Inc. in its acquisitions of Nutshell Mail, Inc. and the assets of Bantam Networks, LLC; and
  • a private company client in its debt financing and related dividend recapitalization.

Honors & Awards

  • Recipient of M&A Advisor's Sixth Annual 40 Under 40 Emerging Leaders Award

Publications & News


June 25, 2015

Joseph Conahan Honored Among M&A Advisor's 40 Under 40

Partner Joseph Conahan has been named to M&A Advisor's Sixth Annual 40 Under 40 Emerging Leaders Awards, a global recognition honoring leading dealmakers, legal advisors and others in the mergers and acquisitions, financing and turnaround markets.

March 27, 2015

2015 M&A Report

Our 2015 M&A Report contains a detailed review of, and outlook for, the global M&A market. Other highlights include a comparison of deal terms in public and private acquisitions, updates on takeover defenses and the current climate around proxy access, and a look at the use of social media by public companies and activist shareholders in contested situations.

March 19, 2015

WilmerHale Attorneys to Participate in 2015 ABA Business Law Section Spring Meeting

Several WilmerHale attorneys will speak at the 2015 ABA Business Law Section Spring Meeting, taking place April 16–18 at the San Francisco Marriot Marquis and InterContinental San Francisco in San Francisco, CA.

February 5, 2015

Thermo Fisher Scientific Strengthens Bioproduction Offering by Acquiring Advanced Scientifics, Inc.

Thermo Fisher Scientific Inc., the world leader in serving science, today announced it has acquired Advanced Scientifics, Inc. (ASI).

October 8, 2014

Actavis to Acquire Durata Therapeutics, Inc.

On October 6, 2014, WilmerHale client Durata Therapeutics announced that it had entered into a definitive merger agreement with Actavis plc under which a subsidiary of Actavis will commence a tender offer to acquire all of the outstanding shares of Durata common stock.

June 9, 2014

WilmerHale Representing Analog Devices in Pending Acquisition of Hittite Microwave Corporation

WilmerHale is representing its longtime client Analog Devices, Inc., a global leader in high-performance semiconductors for signal processing applications, in its proposed acquisition of Hittite Microwave Corporation.

January 7, 2014

WilmerHale Represents Thermo Fisher Scientific in Transaction with GE Healthcare

Thermo Fisher has agreed to sell its cell culture (sera and media), gene modulation and magnetic beads businesses to GE Healthcare for approximately $1.06 billion.

January 6, 2014

WilmerHale Announces the Elevation of Partners and Special Counsel

We are pleased to announce the elevation of our new partners and special counsel.

October 14, 2009

Cisco Systems Acquires Starent Networks

Speaking Engagements


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JD, magna cum laude, Georgetown University Law Center, 2004, Order of the Coif, Articles and Notes Editor, American Criminal Law Review

BS, cum laude, Georgetown University, 2001

Bar Admissions


District of Columbia