Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): January 30, 2021
(Exact name of registrant as specified in its charter)
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1900 Powell Street, Suite 1000
Emeryville, CA 94608
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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligations of the registrant under any of the following provisions: 
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Securities registered pursuant to Section 12(b) of the Act:
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Common Stock, par value $0.001 per shareADMSThe Nasdaq Global Market
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). 
Emerging growth company
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Item 1.01    Entry Into a Material Definitive Agreement.
As previously disclosed, Adamas Pharma, LLC, a wholly-owned subsidiary of Adamas Pharmaceuticals, Inc. (the “Company”) is involved in a lawsuit against Zydus Worldwide DMCC and Zydus Pharmaceuticals (USA), Inc. (collectively “Zydus”) in the United States District Court for the District of New Jersey alleging infringement of the Company’s patents by Zydus. On January 30, 2021, the Company entered into a definitive agreement (the “Definitive Agreement”) with Zydus pursuant to which the parties agreed to end the lawsuit and dismiss it without prejudice. Pursuant to the Definitive Agreement, the Company grants a license to make, use, sell, offer to sell and import a generic version of GOCOVRI® (amantadine) extended release capsules, effective as of March 4, 2030, or earlier in certain circumstances typical for such agreements. In addition, the Definitive Agreement contains provisions that may accelerate the license date, including if unit sales of GOCOVRI in the 12-month period ending July 31, 2025 or any subsequent 12-month period decline by a specified percentage below GOCOVRI unit sales in the year ended December 31, 2019.

The Definitive Agreement will be submitted to the U.S. Federal Trade Commission and the U.S. Department of Justice. The Company expects to file the Definitive Agreement as an exhibit to its Quarterly Report on Form 10-Q for the quarter ending March 31, 2021.

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Adamas Pharmaceuticals, Inc.
Dated: February 1, 2021By:/s/ Christopher B. Prentiss
  Christopher B. Prentiss
  Chief Financial Officer