UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K/A

Amendment No. 1

(Mark One)

For the fiscal year ended December 31, 2025

OR

Commission File Number 001-42477

Flowco Holdings Inc.

(Exact name of Registrant as specified in its Charter)

Registrant’s telephone number, including area code: (713) 997-4877

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

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☐ No ☒

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. Yes ☐ No ☒

Indicate by check mark whether the Registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

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. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the Registrant on June 30, 2025 based on the closing price of $17.81 for shares of the Registrant’s common stock as reported by the New York Stock Exchange, was $362.9 million.

As of February 26, 2026, the number of shares of Registrant’s Class A common stock outstanding was 29,647,189, and the number of shares of the Registrant's Class B common stock outstanding was 60,015,566.

Explanatory Note

The purpose of this Amendment No. 1 to our Annual Report on Form 10-K for the year ended December 31, 2025, originally filed with the Securities and Exchange Commission (the “SEC”) on February 26, 2026 (the “Original Report”), is to correct an inadvertent omission of certain language from paragraph 4 of Exhibit 31.1, Certification of the Principal Executive Officer, and Exhibit 31.2, Certification of the Principal Financial Officer filed with the Original Report. This Amendment No. 1 contains only the Cover Page, this Explanatory Note and Exhibits 31.1 and 31.2. No other changes have been made to the Original Report. This Amendment No. 1 does not reflect subsequent events occurring after the original filing date of the Original Report or modify or update in any way disclosures made in the Original Report. Accordingly, this Amendment No. 1 should be read in conjunction with the Original Report and our other filings with the SEC.

Item 15. Exhibits and Financial Statements Schedules

(b) The following documents are filed as exhibits to this Amendment No. 1:

* Filed herewith

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.