UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q/A

Amendment No. 1

(Mark One)

For the quarterly period ended March 31, 2026

OR

For the transition period from to

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:

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 is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

As of May 1, 2026, the number of shares of the registrant’s Class A common stock outstanding was approximately 41,824,162, and the number of shares of the registrant’s Class B common stock outstanding was approximately 48,521,254.

Explanatory Note

The purpose of this Amendment No. 1 to our Annual Report on Form 10-Q for the three months ended March 31, 2026, originally filed with the Securities and Exchange Commission (the “SEC”) on May 6, 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 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.