FMR LLC holds 4.51M FLOWCO shares, 11.1% stake (NYSE: FLOC)

Rhea-AI Filing Summary

FMR LLC amends Schedule 13G/A to report beneficial ownership of 4,509,083 shares of Class A common stock of FLOWCO HOLDINGS INC. The filing states this represents 11.1% of the class and shows sole dispositive power for 4,509,083 shares, with sole voting power of 4,507,840.

The filing lists issuer address and CUSIP 342909108, references an attached Exhibit 99 and a power of attorney in Exhibit 24, and is signed on behalf of FMR LLC and Abigail P. Johnson.

Key Figures

Beneficial ownership: 4,509,083 shares Percent of class: 11.1% Sole voting power: 4,507,840 shares +2 more

5 metrics

Beneficial ownership 4,509,083 shares Amount beneficially owned reported on Schedule 13G/A

Percent of class 11.1% Percent of Class A common stock reported

Sole voting power 4,507,840 shares Sole voting power reported on cover responses

Sole dispositive power 4,509,083 shares Sole power to dispose reported on Schedule 13G/A

CUSIP 342909108 Class A common stock identifier in the filing

Key Terms

Schedule 13G/A, Beneficial ownership, Sole dispositive power, Exhibit 99

4 terms

Schedule 13G/A regulatory

"Amendment No. 3 ) FLOWCO HOLDINGS INC CLASS A COMMON STOCK"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficial ownership financial

"Item 4. | Ownership (a) | Amount beneficially owned: 4509083.00"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Sole dispositive power financial

"7 | Sole Dispositive Power 4,509,083.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Exhibit 99 regulatory

"Please see Exhibit 99 for 13d-1(k) (1) agreement."

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 3)

FLOWCO HOLDINGS INC

(Name of Issuer)

CLASS A COMMON STOCK

(Title of Class of Securities)

342909108

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 342909108

1

Names of Reporting Persons

FMR LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 4,507,840.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 4,509,083.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,509,083.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

11.1 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 342909108

1

Names of Reporting Persons

Abigail P. Johnson

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 4,509,083.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,509,083.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

11.1 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: FLOWCO HOLDINGS INC
(b)	Address of issuer's principal executive offices: 10370 RICHMOND AVE.,SUITE 1325,HOUSTON,TX,US,77042
Item 2.
(a)	Name of person filing: FMR LLC
(b)	Address or principal business office or, if none, residence: 245 Summer Street, Boston, Massachusetts 02210
(c)	Citizenship: Not applicable
(d)	Title of class of securities: CLASS A COMMON STOCK
(e)	CUSIP No.: 342909108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 4509083.00
(b)	Percent of class: 11.1 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Please see the responses to Items 5 and 6 on the cover page.
	(ii) Shared power to vote or to direct the vote: 0.00
	(iii) Sole power to dispose or to direct the disposition of: 4509083.00
	(iv) Shared power to dispose or to direct the disposition of: 0.00
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. One or more other persons are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the CLASS A COMMON STOCK of FLOWCO HOLDINGS INC. No one other person's interest in the CLASS A COMMON STOCK of FLOWCO HOLDINGS INC is more than five percent of the total outstanding CLASS A COMMON STOCK.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See attached Exhibit 99.
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

FMR LLC

Signature:	Richard Bourgelas
Name/Title:	Duly authorized under Power of Attorney effective as of April 13, 2026, by and on behalf of FMR LLC and its direct and indirect subsidiaries*
Date:	05/05/2026

Abigail P. Johnson

Signature:	Richard Bourgelas
Name/Title:	Duly authorized under Power of Attorney effective as of April 13, 2026, by and on behalf of Abigail P. Johnson*
Date:	05/05/2026

Comments accompanying signature: *This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on April 29,2026, accession number: 0000315066-26-000738.

Exhibit Information

Please see Exhibit 99 for 13d-1(k) (1) agreement.

FAQ

What stake does FMR LLC report in FLOWCO (FLOC)?

FMR LLC reports beneficial ownership of 4,509,083 shares (11.1%). The Schedule 13G/A lists 4,509,083 shares and a percent of class of 11.1% as the reported holding in Class A common stock.

How much voting and dispositive power does FMR LLC claim in the filing?

The filing shows sole voting power for 4,507,840 shares and sole dispositive power for 4,509,083 shares. Shared voting and dispositive powers are reported as 0.00 in the excerpted cover responses.

Is FMR LLC filing an amendment for its prior 13G disclosure?

Yes — the document is labeled Amendment No. 3 to a Schedule 13G/A. It references an updated power of attorney effective April 13, 2026, and includes Exhibit 99 for related agreements.

Does the filing identify other persons holding more than 5% on behalf of FMR LLC?

No single other person's interest exceeds 5% according to the filing. It states that one or more persons may have the right to dividends or proceeds, but none holds more than five percent of the outstanding Class A shares.

What issuer identifiers and signatures are included in the filing?

The cover lists FLOWCO HOLDINGS INC, CUSIP 342909108, and the issuer address in Houston, TX. Signatures show Richard Bourgelas signing on behalf of FMR LLC and Abigail P. Johnson under a referenced power of attorney.