[8-K] FIBROGEN INC Reports Material Event

Rhea-AI Filing Summary

FibroGen, Inc. furnished an 8-K to announce it issued a press release with financial results for the quarter ended September 30, 2025. The press release is provided as Exhibit 99.1.

The company states the information under Item 2.02, including Exhibit 99.1, is not deemed “filed” under the Exchange Act and will not be incorporated by reference into other SEC filings.

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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): November 10, 2025

FIBROGEN, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware			001-36740	77-0357827
(State or Other Jurisdiction of Incorporation)			(Commission File Number)	(IRS Employer Identification No.)
350 Bay Street Suite 100 #6009
San Francisco, California				94133
(Address of Principal Executive Offices)				(Zip Code)

Registrant’s Telephone Number, Including Area Code: 415 978-1200

(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, $0.01 par value		FGEN		The Nasdaq Global Select 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 2.02 Results of Operations and Financial Condition.

On November 10, 2025, FibroGen, Inc. (“FibroGen”) issued a press release announcing financial results for the quarter ended September 30, 2025. A copy of such press release is furnished as Exhibit 99.1 to this report and is incorporated herein by reference.

The information in this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended. The information contained in this Item 2.02, in Exhibit 99.1 shall not be incorporated by reference into any filing with the U.S. Securities and Exchange Commission made by FibroGen, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

Item 9.01 Financial Statements and Exhibits.

(d)	Exhibits
Exhibit No.			Description
99.1			Press Release dated November 10, 2025
104			Cover Page Interactive Data File (embedded within the Inline XBRL document)

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.

			FIBROGEN, INC.
Date:	November 10, 2025	By:	/s/ David DeLucia
			David DeLucia Senior Vice President and Chief Financial Officer

FAQ

What did FibroGen (FGEN) disclose in this 8-K?

FibroGen announced it issued a press release with financial results for the quarter ended September 30, 2025, furnished as Exhibit 99.1.

Which period do the results cover for FibroGen (FGEN)?

The results cover the quarter ended September 30, 2025.

Where can I find FibroGen’s press release tied to this 8-K?

It is furnished as Exhibit 99.1 to the report.

Is the information in this 8-K considered 'filed' with the SEC?

No. The company states the Item 2.02 information, including Exhibit 99.1, is not deemed "filed."

Will the Exhibit 99.1 press release be incorporated by reference into other filings?

No. The company states it will not be incorporated by reference into other SEC filings.

What is FibroGen’s trading symbol and exchange?

FibroGen’s common stock trades under FGEN on the Nasdaq Global Select Market.