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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_____________________

FORM 8-K
_____________________
CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(D)
OF THE SECURITIES EXCHANGE ACT OF 1934
Date of Report (Date of earliest event reported): December 14, 2023
_____________________

AKEBIA THERAPEUTICS, INC.
(Exact name of registrant as specified in its charter)
_____________________
Delaware 001-36352 20-8756903
(State or other jurisdiction
of incorporation)
 (Commission
File Number)
 (IRS Employer
Identification No.)
245 First Street
Cambridge, Massachusetts
 02142
(Address of principal executive offices) (Zip Code)
Registrant’s telephone number, including area code: (617) 871-2098
N/A
(Former name or former address, if changed since last report)
_____________________
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
 Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
 Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
 Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
 Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class Trading
symbol(s)
 Name of each exchange
on which registered
Common Stock, par value $0.00001 per share AKBA 
The Nasdaq Capital 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
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐





Item 1.01.    Entry into a Material Definitive Agreement.

As previously disclosed, on February 28, 2023, Keryx Biopharmaceuticals, Inc., a wholly-owned subsidiary of Akebia Therapeutics, Inc. (the “Company”), and Siegfried Evionnaz SA (“Siegfried”) entered into Amendment No. 5 Master Manufacturing Services and Supply Agreement (the “Amendment”), which further amended the Master Manufacturing Services and Supply Agreement dated December 20, 2017 (as amended, the “Supply Agreement”). As a result of the Amendment, the term of the Supply Agreement was set to expire on December 31, 2024, subject to the Company's option to extend through December 31, 2026 by providing twelve (12) months' prior written notice to Siegfried.

On December 14, 2023, the Company provided Siegfried with written notice of the Company’s election to extend the term of the Supply Agreement through December 31, 2026 (the “Extension”). As a result of the Extension, the term of the Supply Agreement shall end on December 31, 2026. All other terms and conditions of the Supply Agreement shall remain in effect.






SIGNATURE
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.
AKEBIA THERAPEUTICS, INC.
Date: December 18, 2023
By: /s/ John P. Butler
Name: John P. Butler
Title: President and Chief Executive Officer