Roderick A. Larson
President and CEO at Oceaneering International Inc.
Sits on 2 boards. Last updated September 28, 2026
Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 7 years
- Director since
- 2023
7 years of board service in total across 2 boards, counting each seat separately. Longest: Oceaneering International Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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NPK International Inc. May 20, 202697.4%
-
NPK International Inc. May 15, 202597.7%
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Oceaneering International Inc. May 9, 202597.7%
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NPK International Inc. May 16, 202491.6%
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NPK International Inc. May 18, 202396.8%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Nov 2, 2026 | Oceaneering International Inc. | Open-market sale | −1,700 | $43.61 | $74,137 |
| Nov 2, 2026 | Oceaneering International Inc. | Open-market sale | −4,300 | $44.38 | $190,834 |
| Oct 1, 2026 | Oceaneering International Inc. | Open-market sale | −1,700 | $43.61 | $74,137 |
| Oct 1, 2026 | Oceaneering International Inc. | Open-market sale | −4,300 | $44.38 | $190,834 |
| May 20, 2026 | NPK International Inc. | Grant or award | +8,558 | — | — |
| May 18, 2026 | Oceaneering International Inc. | Open-market sale | −5,000 | $38.27 | $191,350 |
| Feb 24, 2026 | Oceaneering International Inc. | Shares withheld for tax | −38,227 | $37.22 | $1,422,809 |
| May 15, 2025 | NPK International Inc. | Grant or award | +15,097 | — | — |
| Feb 25, 2025 | Oceaneering International Inc. | Shares withheld for tax | −41,046 | $22.09 | $906,706 |
| Feb 24, 2025 | Oceaneering International Inc. | Grant or award | +91,797 | — | — |
| May 16, 2024 | NPK International Inc. | Grant or award | +16,108 | — | — |
| Feb 26, 2024 | Oceaneering International Inc. | Shares withheld for tax | −59,932 | $21.97 | $1,316,706 |
| Feb 23, 2024 | Oceaneering International Inc. | Grant or award | +100,962 | — | — |
| May 18, 2023 | NPK International Inc. | Grant or award | +38,560 | — | — |
| Feb 27, 2023 | Oceaneering International Inc. | Shares withheld for tax | −35,916 | $19.79 | $710,778 |
Questions about Roderick A. Larson
What boards is Roderick A. Larson on?
Roderick A. Larson sits on the boards of NPK International Inc. and Oceaneering International Inc.
What company is Roderick A. Larson the CEO of?
Roderick A. Larson is President and CEO of Oceaneering International Inc.
How long has Roderick A. Larson served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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