Roderick A. Larson

CIK: 0001550150

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)3 (30.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)5 (50.0%)

Compensation grants

Other (G, F, J, C, D, …)2 (20.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

OII

OCEANEERING INTERNATIONAL INC

DirectorOfficer

NPKI

NPK International Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (10 total)

OII
OCEANEERING INTERNATIONAL INC
Oct 1, 2026
Sale(S)
Indirect
1.7K shares at avg. $43.61$74K
OII
OCEANEERING INTERNATIONAL INC
Oct 1, 2026
Sale(S)
Indirect
4.3K shares at avg. $44.38$191K
NPKI
NPK International Inc.
May 20, 2026
Award(A)
Direct
8.6K shares-
OII
OCEANEERING INTERNATIONAL INC
May 18, 2026
Sale(S)
Indirect
5K shares at avg. $38.27$191K
OII
OCEANEERING INTERNATIONAL INC
Feb 24, 2026
Tax Payment(F)
Direct
38.2K shares at avg. $37.22$1.4M
OII
OCEANEERING INTERNATIONAL INC
Feb 20, 2026
Award(A)
Performance Stock Units
Direct
82.7K shares-
OII
OCEANEERING INTERNATIONAL INC
Feb 20, 2026
Award(A)
Restricted Stock Units
Direct
82.7K shares-
NPKI
NPK International Inc.
May 15, 2025
Award(A)
Direct
15.1K shares-
OII
OCEANEERING INTERNATIONAL INC
Feb 25, 2025
Tax Payment(F)
Direct
41K shares at avg. $22.09$907K
OII
OCEANEERING INTERNATIONAL INC
Feb 24, 2025
Award(A)
Direct
91.8K shares-

		Type	Shares	Price		Ownership
Oct 1, 2026	OII OCEANEERING INTERNATIONAL INC	Sale(S)	1,700	$43.61	$74,137	Indirect
Oct 1, 2026	OII OCEANEERING INTERNATIONAL INC	Sale(S)	4,300	$44.38	$190,834	Indirect
May 20, 2026	NPKI NPK International Inc.	Award(A)	8,558	-	$0	Direct
May 18, 2026	OII OCEANEERING INTERNATIONAL INC	Sale(S)	5,000	$38.27	$191,350	Indirect
Feb 24, 2026	OII OCEANEERING INTERNATIONAL INC	Tax Payment(F)	38,227	$37.22	$1,422,809	Direct
Feb 20, 2026	OII OCEANEERING INTERNATIONAL INC	Award(A) Performance Stock Units	82,672	-	-	Direct
Feb 20, 2026	OII OCEANEERING INTERNATIONAL INC	Award(A) Restricted Stock Units	82,672	-	-	Direct
May 15, 2025	NPKI NPK International Inc.	Award(A)	15,097	-	-	Direct
Feb 25, 2025	OII OCEANEERING INTERNATIONAL INC	Tax Payment(F)	41,046	$22.09	$906,706	Direct
Feb 24, 2025	OII OCEANEERING INTERNATIONAL INC	Award(A)	91,797	-	-	Direct

1-10 of 10 transactions

About LARSON RODERICK A.

LARSON RODERICK A. (SEC CIK 0001550150) files insider reports with the SEC as President and CEO of OCEANEERING INTERNATIONAL INC (OII) and Director of NPK International Inc. (NPKI).

Signal8 holds 7 ownership filings by LARSON RODERICK A., all Form 4s, filed between Feb 26, 2025 and Oct 5, 2026. Those filings report 10 transactions, from Feb 24, 2025 to Oct 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on LARSON RODERICK A.'s filings is in HOUSTON, TX.

Recent filings by LARSON RODERICK A.

Oct 1, 2026: Open-market sales of OII shares (2 lines, Form 4, code S).
May 20, 2026: Grant or award of NPKI shares (Form 4, code A).
May 18, 2026: Open-market sale of OII shares (Form 4, code S).
Feb 24, 2026: Tax withholding of OII shares (Form 4, code F).
Feb 20, 2026: Grants or awards of OII derivative securities (2 lines, Form 4, code A).

Other insiders filing for OCEANEERING INTERNATIONAL INC (OII)

MURPHY PAUL B JR, Director
DYER CHRISTOPHER J, SVP, OPGroup
MCEVOY M KEVIN, Director
Childress Earl, SVP, Chief Commercial Ofc.
GOODWIN DEANNA L, Director
Jenkins Roger W., Director

How to read Form 4 transaction codes