Roderick A. Larson

Executive

Chief Executive Officer

Newpark Resources Inc Newpark Resources Inc Oceaneering International Inc NPK International Inc.

Insider activity · 24 months0 buys2 salesCumulative net flow

Nov 24 · 0 buys · 0 salesDec 24 · 0 buys · 0 salesJan 25 · 0 buys · 0 salesFeb 25 · 0 buys · 0 salesMar 25 · 0 buys · 0 salesApr 25 · 0 buys · 0 salesMay 25 · 0 buys · 0 salesJun 25 · 0 buys · 0 salesJul 25 · 0 buys · 0 salesAug 25 · 0 buys · 0 salesSept 25 · 0 buys · 0 salesOct 25 · 0 buys · 0 salesNov 25 · 0 buys · 0 salesDec 25 · 0 buys · 0 salesJan 26 · 0 buys · 0 salesFeb 26 · 0 buys · 0 salesMar 26 · 0 buys · 0 salesApr 26 · 0 buys · 0 salesMay 26 · 0 buys · 0 salesJun 26 · 0 buys · 0 salesJul 26 · 0 buys · 0 salesAug 26 · 0 buys · 0 salesSept 26 · 0 buys · 0 salesOct 26 · 0 buys · 2 sales

Total declarations

Companies

▲ Purchases (0 ops.)

—

▼ Sales (2 ops.)

€234k

Latest filing published 05 Oct 2026 for Oceaneering International INC, €65k. Read the official filing

Filing timeline

BuySale

Roderick A. Larson

Insider track record

Disclosed buys

Disclosed sells

Signal history

Roderick A. Larson: trading record in brief

Filings by Roderick A. Larson span 2 companies, the busiest being Oceaneering International Inc and NPK International Inc. Over a trading history stretching from 20 May 2021 to 1 October 2026, the count stands at 14 filings.

No open-market purchase appears, only 2 sales worth €234k. Besides market trades, the filings include 12 share grants. In 2026 alone, the filings show no purchases and 2 sales.

The newest entry dates from 5 October 2026: an open-market sale of €65k, in Oceaneering International Inc. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 4 days. The legal deadline for a Form 4 is two business days after the transaction. Keep in mind that insiders sell for many reasons unrelated to the outlook, from tax bills to estate planning. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.