Larson Roderick A.

NPK International Inc. · Director

Larson Roderick A. is listed in public filings as director. This Larson Roderick A. insider trading page organizes Form 4 disclosures, reported purchases and sales, transaction dates, share amounts, related issuers, and historical insider activity so readers can review the person's public trading record in one place. Companies and tickers connected to this insider trading profile include NPK International Inc. (NPKI), and Oceaneering International, Inc. (OII). Investors use Larson Roderick A.'s insider trading disclosures to study buying and selling patterns, position changes, company-specific activity, and the source evidence behind each reported transaction.

Latest Actions

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
NPK International Inc.NPKI--23.7k sharesGrant / ExerciseMay 20, 2026Disclosure amount unavailable8.6k shares----

Insider Trades History

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
Oceaneering International, Inc.OII$15M397.3k sharesSellMay 18, 2026$191.3K5k shares$38.27--
Oceaneering International, Inc.OII$9.4M251.4k sharesGrant / ExerciseFeb 24, 2026$1.4M38.2k shares$37.22--
Oceaneering International, Inc.OII--82.7k sharesGrant / ExerciseFeb 20, 2026Disclosure amount unavailable82.7k shares----
NPK International Inc.NPKI--15.1k sharesGrant / ExerciseMay 15, 2025Disclosure amount unavailable15.1k shares----
Oceaneering International, Inc.OII$7.8M352.8k sharesGrant / ExerciseFeb 25, 2025$906.7K41k shares$22.09--
Oceaneering International, Inc.OII--393.8k sharesGrant / ExerciseFeb 24, 2025Disclosure amount unavailable91.8k shares----