Form SCHEDULE 13G/A OCEANEERING INTERNATIONA Filed by: BROWN ADVISORY INC

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)*

Oceaneering International, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

(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)

SCHEDULE 13G

CUSIP No.

Names of Reporting Persons

BROWN ADVISORY INC

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

(a)
(b)

Sec Use Only

Citizenship or Place of Organization

MARYLAND

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 4,514,306.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 5,074,283.00

Aggregate Amount Beneficially Owned by Each Reporting Person

5,077,853.00

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

Percent of class represented by amount in row (9)

5.09 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP No.

Names of Reporting Persons

BROWN INVESTMENT ADVISORY & TRUST CO

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

(a)
(b)

Sec Use Only

Citizenship or Place of Organization

MARYLAND

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 43,543.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 39,973.00

Aggregate Amount Beneficially Owned by Each Reporting Person

43,543.00

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

Percent of class represented by amount in row (9)

0.04 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP No.

Names of Reporting Persons

BROWN ADVISORY LLC

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

(a)
(b)

Sec Use Only

Citizenship or Place of Organization

MARYLAND

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 4,467,933.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 5,031,166.00

Aggregate Amount Beneficially Owned by Each Reporting Person

5,031,166.00

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

Percent of class represented by amount in row (9)

5.04 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP No.

Names of Reporting Persons

SIGNATURE FINANCIAL MANAGEMENT, INC.

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

(a)
(b)

Sec Use Only

Citizenship or Place of Organization

VIRGINIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 2,830.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,144.00

Aggregate Amount Beneficially Owned by Each Reporting Person

3,144.00

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

Percent of class represented by amount in row (9)

0 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

Item 1.

(a)

Name of issuer:

Oceaneering International, Inc.

(b)

Address of issuer's principal executive offices:

5875 NORTH SAM HOUSTON PARKWAY WEST, SUITE 400, HOUSTON, TEXAS 77086

Item 2.

(a)

Name of person filing:

BROWN ADVISORY INC BROWN INVESTMENT ADVISORY & TRUST CO BROWN ADVISORY LLC SIGNATURE FINANCIAL MANAGEMENT, INC.

(b)

Address or principal business office or, if none, residence:

901 SOUTH BOND STREET SUITE #400 Baltimore, Maryland 21231

(c)

Citizenship:

BROWN ADVISORY INC - MARYLAND BROWN INVESTMENT ADVISORY & TRUST CO - MARYLAND BROWN ADVISORY LLC - MARYLAND SIGNATURE FINANCIAL MANAGEMENT, INC. - VIRGINIA

(d)

Title of class of securities:

Common Stock

(e)

CUSIP No.:

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:

5,077,853

(b)

Percent of class:

5.09 %

(c)

Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote:

BROWN ADVISORY INC - 4,514,306 BROWN INVESTMENT ADVISORY & TRUST CO - 43,543 BROWN ADVISORY LLC - 4,467,933 SIGNATURE FINANCIAL MANAGEMENT, INC. - 2,830

(ii) Shared power to vote or to direct the vote:

BROWN ADVISORY INC - 0 BROWN INVESTMENT ADVISORY & TRUST CO - 0 BROWN ADVISORY LLC - 0 SIGNATURE FINANCIAL MANAGEMENT, INC. - 0

(iii) Sole power to dispose or to direct the disposition of:

BROWN ADVISORY INC - 0 BROWN INVESTMENT ADVISORY & TRUST CO - 0 BROWN ADVISORY LLC - 0 SIGNATURE FINANCIAL MANAGEMENT, INC. - 0

(iv) Shared power to dispose or to direct the disposition of:

BROWN ADVISORY INC - 5,074,283 BROWN INVESTMENT ADVISORY & TRUST CO - 39,973 BROWN ADVISORY LLC - 5,031,166 SIGNATURE FINANCIAL MANAGEMENT, INC. - 3,144

Item 5.

Ownership of 5 Percent or Less of a Class.

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.

The total securities being reported are beneficially owned by investment companies and other managed accounts of direct/indirect subsidiaries of BROWN ADVISORY INC (listed above). These subsidiaries may be deemed to be beneficial owners of the reported securities because applicable investment advisory contracts provide voting and/or investment power over securities.

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.

BROWN ADVISORY INC is a parent holding company filing this schedule on behalf of the following subsidiaries pursuant to Rule 13d-1(b)(1)(ii)(G) under the Securities Exchange Act of 1934: BROWN INVESTMENT ADVISORY & TRUST CO - BK (Bank) BROWN ADVISORY LLC - IA (Investment Adviser) SIGNATURE FINANCIAL MANAGEMENT, INC. - IA (Investment Adviser)

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.

BROWN ADVISORY INC

Signature:	/s/Victor Fernandez
Name/Title:	Victor Fernandez, Chief Compliance Officer
Date:	08/14/2026

BROWN INVESTMENT ADVISORY & TRUST CO

Signature:	/s/Victor Fernandez
Name/Title:	Victor Fernandez, Chief Compliance Officer
Date:	08/14/2026

BROWN ADVISORY LLC

Signature:	/s/Victor Fernandez
Name/Title:	Victor Fernandez, Chief Compliance Officer
Date:	08/14/2026

SIGNATURE FINANCIAL MANAGEMENT, INC.

Signature:	/s/Victor Fernandez
Name/Title:	Victor Fernandez, Chief Compliance Officer
Date:	08/14/2026

Form SCHEDULE 13G/A OCEANEERING INTERNATIONA Filed by: BROWN ADVISORY INC

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