RODERICK A. LARSON
CIK 1550150 · President and CEO · last filed 2026-05-21
RODERICK A. LARSON is a President and CEO who has filed 41 SEC Form 4 insider transactions across 2 companies since 2012. The most recent filing, for NR, was dated May 21, 2026. Across all open-market trades the lifetime net is −$84.7K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $33.3M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$33.29M
2
41
-$84.7K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NPK International Inc. (NR) Delisted | Director | 257,306 | $7.25 | $1.87M | $0 | 13 | 2026-05-21 |
| OII | President and CEO | 648,710 | $51.32 | $33.29M | -$84.7K | 27 | 2026-05-19 |
Recent Filings
41 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-21 | NPK International Inc. (NR) Delisted | Grant (A) | +8,558 | $0 | EDGAR |
| 2026-05-19 | OII | Sell (S) | −5,000 | -$191.4K | EDGAR |
| 2026-05-18 | OII | Notice (144) | −5,000 | -$189.2K | EDGAR |
| 2026-02-26 | OII | Tax (F) | −38,227 | -$1.42M | EDGAR |
| 2026-02-24 | OII | Grant (A) | — | $0 | EDGAR |
| 2025-05-19 | NPK International Inc. (NR) Delisted | Grant (A) | +15,097 | $0 | EDGAR |
| 2025-02-26 | OII | Mixed | +50,751 | -$906.7K | EDGAR |
| 2024-05-20 | NPK International Inc. (NR) Delisted | Grant (A) | +16,108 | $0 | EDGAR |
| 2024-02-28 | OII | Tax (F) | −59,932 | -$1.32M | EDGAR |
| 2024-02-27 | OII | Grant (A) | +100,962 | $0 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.