Daniel Ambar

O'Melveny & Myers LLP

Daniel Ambar represents clients in a wide range of commercial litigation and antitrust related matters. In the commercial litigation arena, he handles contract disputes, and defends against fraud and RICO claims. In connection with antitrust litigation, Daniel has defended against allegations of price-fixing in the air cargo and optical disk drive business, as well as prosecuted claims for monopolization and other anticompetitive practices on the plaintiffs’ sides.

He has also conducted internal investigations on behalf of large corporations in a number of matters. Daniel understands that litigation is only one weapon in a broader arsenal available to his clients. He deploys and manages this weapon strategically in the broader context of his clients’ business in order to achieve strategic goals.

He has worked on cases for a wide range of clients, including Asiana Airlines, Bank of America, Lennar, Participant Media, Samsung Electronics, and US Airways.


  • Represent Samsung Electronics in the multi-district litigation (MDL) case In re Optical Disk Drive Antitrust Litig., pending in the US District Court, Northern District of California. We took the lead in drafting the class certification opposition in the Direct Purchaser case and successfully defeated class certification on claims totaling almost US$3 billion.
  • Represent US Airways in prosecuting claims that certain contractual provisions in GDS contracts are anticompetitive
  • Represented Participant Media in connection with a lawsuit brought in the District of Kansas alleging breaches of fiduciary duty and claims under the Anti-Terrorism Act in connection with the production of the documentary Citizenfour. Plaintiff dismissed the complaint before responding to our motion to dismiss
  • Represented Asiana Airlines in federal MDL proceedings alleging price fixing of air cargo transportation services. Assisted in briefing of appeal to the US Court of Appeals for the Second Circuit on the issue of whether the Airline Deregulation Act preempts state antitrust laws against foreign airlines shipping cargo. The Second Circuit affirmed that it does, extinguishing significant liability for our client.
  • Conducted an internal investigation on behalf of Fannie Mae in response to a subpoena and investigation by the Federal Housing and Finance Agency and the Department of Justice


  • District of Columbia
  • California
  • US District Court for the Central and Northern Districts of California
  • US Court of Appeals, Ninth Circuit


  • University of Michigan, J.D.: cum laude; articles editor, Michigan Journal of International Law
  • Brandeis University, B.A., Computer Science: cum laude
  • Brandeis University, B.A., English & American Literature: cum laude


Rate : $$$

What types of cases Attorney Daniel Ambar & O'Melveny & Myers LLP can handle?
O'Melveny & Myers LLP can handle cases related to laws concerning Litigation, Entertainment, Business, Antitrust & Trade. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is O'Melveny & Myers LLP located?
O'Melveny & Myers LLP is located at 400 S Hope St #18th+floor, Los Angeles, CA 90071, USA. You can reach out to O'Melveny & Myers LLP using their phone line 310-246-8451. You can also check their website omm.com or email them at [email protected].
How much would it cost to hire O'Melveny & Myers LLP?
Daniel Ambar lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
Are Daniel Ambar reviews trust-able?
We have the ratings and reviews moderation team who checks and verifies every review submitted on our website manually. You can trust all the reviews you see on Daniel Ambar lawyer profile listing.

Rate and write a review

Your email address will not be published. Required fields are marked *

Is this your profile?Claim it now.

Make sure your information is up to date.
O'Melveny & Myers LLP
South Hope Street 400
Los Angeles 90071 CA US
Get directions

Brian Orlow

Main Street 71-18
11367 NY US

Lina Stillman

Broadway 42
New York 10006 NY US