Gulfport Energy (GPOR): State Street discloses 5.5% beneficial ownership stake

Rhea-AI Filing Summary

State Street Corporation reports beneficial ownership of common stock of Gulfport Energy Corp. State Street holds 990,939 shares of Gulfport common stock, representing 5.5% of the class as of June 30, 2026. All voting and dispositive authority is reported as shared rather than sole. State Street has shared voting power over 978,323 shares and shared dispositive power over 990,939 shares, with no sole voting or sole dispositive power. The filing identifies several affiliated investment adviser subsidiaries, including SSGA Funds Management, Inc. and multiple State Street Global Advisors entities, as the subsidiaries through which these holdings are managed.

Key Figures

Beneficial ownership: 990,939 shares Percent of class: 5.5% Shared voting power: 978,323 shares +3 more

6 metrics

Beneficial ownership 990,939 shares Common stock of Gulfport Energy Corp beneficially owned by State Street Corporation

Percent of class 5.5% Percentage of Gulfport Energy Corp common stock class held by State Street Corporation

Shared voting power 978,323 shares Shares of Gulfport Energy Corp over which State Street has shared voting power

Shared dispositive power 990,939 shares Shares of Gulfport Energy Corp over which State Street has shared dispositive power

CUSIP 402635502 CUSIP number for Gulfport Energy Corp common stock

As-of date 06/30/2026 Date as of which the ownership information is reported

Key Terms

beneficially owned, shared voting power, shared dispositive power, parent holding company, +1 more

5 terms

beneficially owned financial

"Ownership (a) | Amount beneficially owned: 990939.00"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

shared voting power financial

"Shared power to vote or to direct the vote: 978,323"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"Shared power to dispose or to direct the disposition of: 990,939"

parent holding company financial

"Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company"

investment company financial

"A listing of the shareholders of an investment company registered under the Investment Company Act of 1940"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What percentage of Gulfport Energy Corp (GPOR) does State Street Corporation own?

State Street Corporation reports beneficial ownership of 5.5% of the outstanding common stock of Gulfport Energy Corp, corresponding to 990,939 shares of common stock as of June 30, 2026.

How many Gulfport Energy Corp (GPOR) shares does State Street Corporation report beneficially owning?

State Street Corporation reports beneficial ownership of 990,939 shares of Gulfport Energy Corp common stock, with shared dispositive power over all 990,939 shares and shared voting power over 978,323 shares.

Does State Street Corporation have sole voting power over Gulfport Energy Corp (GPOR) shares?

No. State Street Corporation reports 0 shares with sole voting power and 978,323 shares with shared voting power in Gulfport Energy Corp, indicating all reported voting authority is shared.

What type of power does State Street Corporation have over its Gulfport Energy Corp (GPOR) holdings?

State Street reports shared voting power over 978,323 shares and shared dispositive power over 990,939 shares of Gulfport Energy stock, with no sole voting or sole dispositive power.

Which State Street subsidiaries are involved in managing Gulfport Energy Corp (GPOR) shares?

The report identifies several investment adviser subsidiaries, including SSGA Funds Management, Inc., State Street Global Advisors Europe Limited, State Street Global Advisors Limited, State Street Global Advisors Trust Company, and State Street Global Advisors, Ltd..

Is any other person disclosed as having rights to more than 5% of Gulfport Energy Corp (GPOR) through State Street?

No. The ownership-on-behalf-of-another section is marked "Not Applicable", indicating no specifically identified other person is disclosed as having rights to more than 5% of this class through State Street’s holdings.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

GULFPORT ENERGY CORP

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

402635502

(CUSIP Number)

06/30/2026

(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): 402635502

1

Names of Reporting Persons

STATE STREET CORPORATION

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

MASSACHUSETTS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 978,323.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 990,939.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

990,939.00

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)

5.5 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: GULFPORT ENERGY CORP
(b)	Address of issuer's principal executive offices: 3001 QUAIL SPRINGS PKWY, OKLAHOMA CITY, OKLAHOMA, 73134
Item 2.
(a)	Name of person filing: STATE STREET CORPORATION;
(b)	Address or principal business office or, if none, residence: ONE CONGRESS STREET, SUITE 1, BOSTON MA 02114, UNITED STATES
(c)	Citizenship: MA
(d)	Title of class of securities: COMMON STOCK
(e)	CUSIP Number(s): 402635502
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: 990939.00
(b)	Percent of class: 5.5 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 978,323
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 990,939
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. NOT APPLICABLE
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. SSGA FUNDS MANAGEMENT, INC. (IA);STATE STREET GLOBAL ADVISORS EUROPE LIMITED (IA);STATE STREET GLOBAL ADVISORS LIMITED (IA);STATE STREET GLOBAL ADVISORS TRUST COMPANY (IA);STATE STREET GLOBAL ADVISORS, LTD. (IA);
Item 8.	Identification and Classification of Members of the Group.
	If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(K), so indicate under Item 3(k) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group. NOT APPLICABLE
Item 9.	Notice of Dissolution of Group.
	Notice of dissolution of a group may be furnished as an exhibit stating the date of the dissolution and that all further filings with respect to transactions in the security reported on will be filed, if required, by members of the group, in their individual capacity. See Item 5. 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.

STATE STREET CORPORATION

Signature:	ELIZABETH SCHAEFER
Name/Title:	SENIOR VICE PRESIDENT, CHIEF ACCOUNTING OFFICER
Date:	08/07/2026