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): January 13, 2021

FibroGen, Inc.

(Exact name of registrant as specified in its charter)

FibroGen, Inc.

409 Illinois Street

San Francisco, CA 94158

(Address of principal executive offices, including zip code)

(415) 978-1200

(Registrant’s telephone number, including area code)

Not Applicable

(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:

Securities registered pursuant to Section 12(b) of the Act:

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.      ☐

On January 13, 2021, FibroGen, Inc. (“FibroGen”) entered into a supply agreement (the “EU Supply Agreement”) with Astellas Pharma Europe Ltd. (“Astellas”), pursuant to which FibroGen will supply roxadustat as bulk drug product to Astellas for commercial and other uses in Europe, the Commonwealth of Independent States, the Middle East, and South Africa under the Anemia License and Collaboration Agreement entered into between FibroGen and Astellas, effective April 28, 2006 (the “Collaboration Agreement”). The EU Supply Agreement contains delivery, acceptance, payment, termination, forecasting, and other terms consistent with the Collaboration Agreement, as well as certain quality assurance, indemnification, liability and other standard industry terms.

The foregoing description of the EU Supply Agreement is not a complete description thereof, and is qualified in its entirety by reference to the full text of the EU Supply Agreement, which will be filed with the Securities and Exchange Commission as an exhibit to FibroGen’s Quarterly Report on Form 10-Q for the quarter ending March 31, 2021.

SIGNATURES

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.