RODERICK A. LARSON - 24 Feb 2026 Form 4 Insider Report for OCEANEERING INTERNATIONAL INC (OII)

Role: President and CEO, Director
Signature: /s/ Jennifer F. Simons, Attorney-in-Fact for Roderick A. Larson
Issuer symbol: OII
Transactions as of: 24 Feb 2026
Net transactions value: -$1,422,809
Form type: 4
Filing time: 26 Feb 2026, 17:47:18 UTC
Previous filing: 24 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
LARSON RODERICK A.	President and CEO, Director	5875 N. SAM HOUSTON PARKWAY W., SUITE 400, HOUSTON	/s/ Jennifer F. Simons, Attorney-in-Fact for Roderick A. Larson	26 Feb 2026	0001550150

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OII	Common Stock	Tax liability	$1,422,809	-38,227	-13%	$37.22	251,431	24 Feb 2026	Direct
holding	OII	Common Stock						402,279	24 Feb 2026	LFV, LP	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The reporting person disclaims beneficial ownership of all of the shares held indirectly through this entity except to the extent of the pecuniary interest held therein.