Insider · CIK 0001550150
Roderick A. Larson
Files at NPKI (NEWPARK RESOURCES INC), OII (OCEANEERING INTERNATIONAL INC). First filing May 19, 2026, latest Oct 5, 2026.
In brief
Roderick A. Larson files SEC Form 4 as CEO, president and director at OII (OCEANEERING INTERNATIONAL INC), and also at NPKI (NEWPARK RESOURCES INC). Since May 19, 2026, Roderick A. Larson has reported 0 open-market buys worth $0 and 2 open-market sells worth $456k, the latest filed on Oct 5, 2026.
A track record needs three past buys with six months of prices behind them; Roderick A. Larson has 0, so none is measured yet.
The newest scored trade: sold $265k of OII on Oct 1, 2026, filed Oct 5, 2026, scored 18 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 2 sells worth $456k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
OII: OCEANEERING INTERNATIONAL INC
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 18Weak | OCEANEERING INTERNATIONAL INC | $265k 6,000 shares | -2% | +100% from low-18% from high | |
| 45Moderate | OCEANEERING INTERNATIONAL INC | $191k 5,000 shares | -1% | +104% from low-1% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Oct 1, 2026 | OII Oceaneering International, Inc. | 18,000 0.02% of outstanding | $785k | Oct 1, 2026 | none |
| May 18, 2026 | OII Oceaneering International, Inc. | 5,000 0.01% of outstanding | $189k | May 18, 2026 | none |
Transactions
Every row this insider has filed, 10 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | OII OCEANEERING INTERNATIONAL INC | SOpen-market sale Common Stockindirect: LFV, LP10b5-1 | -1,700 | $43.61 | $74k | 395,579 | 8 d ago |
| Oct 1, 2026 | OII OCEANEERING INTERNATIONAL INC | SOpen-market sale Common Stockindirect: LFV, LP10b5-1 | -4,300 | $44.38 | $191k | 391,279 | 8 d ago |
| May 20, 2026 | NPKI NEWPARK RESOURCES INC | AGrant or award Common Stock | +8,558 | $0.00 | $0 | 23,655 | May 21, 2026 |
| May 18, 2026 | OII OCEANEERING INTERNATIONAL INC | SOpen-market sale Common Stockindirect: LFV, LP | -5,000 | $38.27 | $191k | 397,279 | May 19, 2026 |
| Feb 24, 2026 | OII OCEANEERING INTERNATIONAL INC | FTax withholding Common Stock | -38,227 | $37.22 | $1.4M | 251,431 | Feb 26, 2026 |
| Feb 20, 2026 | OII OCEANEERING INTERNATIONAL INC | AGrant or award Performance Stock Unitsderivative | +82,672 | $0.00 | $0 | 82,672 | Feb 24, 2026 |
| Feb 20, 2026 | OII OCEANEERING INTERNATIONAL INC | AGrant or award Restricted Stock Unitsderivative | +82,672 | $0.00 | $0 | 82,672 | Feb 24, 2026 |
| May 15, 2025 | NPKI NEWPARK RESOURCES INC | AGrant or award Common Stock | +15,097 | $0.00 | $0 | 15,097 | May 19, 2025 |
| Feb 24, 2025 | OII OCEANEERING INTERNATIONAL INC | AGrant or award Common Stock | +91,797 | $0.00 | $0 | 393,843 | Feb 26, 2025 |
| Feb 25, 2025 | OII OCEANEERING INTERNATIONAL INC | FTax withholding Common Stock | -41,046 | $22.09 | $907k | 352,797 | Feb 26, 2025 |
Questions about Roderick A. Larson
Answered from the filings on this page, as of the latest one.
Is Roderick A. Larson buying or selling?
In the last 12 months Roderick A. Larson reported 0 open-market buys worth $0 and 2 open-market sells worth $456k on SEC Form 4; the latest was sold $265k of OII on Oct 1, 2026. Grants, option exercises and tax withholding are not counted.
How did Roderick A. Larson's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Roderick A. Larson has 0.
Where does Roderick A. Larson file Form 4?
Roderick A. Larson has filed Form 4 at OII (OCEANEERING INTERNATIONAL INC) as President and CEO; NPKI (NEWPARK RESOURCES INC). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.