RODERICK A. LARSON
CIK 1550150 · President and CEO · last filed 2026-05-21
"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.
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Disclosed Exposure
$25.55M
Companies
2
Total Filings
40
Lifetime Open-Market Net
-$84.7K
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 | $39.39 | $25.55M | -$84.7K | 27 | 2026-05-19 |
Recent Filings · Page 3 of 4
40 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2019-05-28 | NPK International Inc. (NR) Delisted | Grant (A) | +20,435 | $0 | EDGAR |
| 2019-03-01 | OII | Grant (A) | +83,246 | $0 | EDGAR |
| 2019-02-19 | OII | Tax (F) | −8,815 | -$146.8K | EDGAR |
| 2018-12-21 | OII | Buy (P) | +5,000 | $56.7K | EDGAR |
| 2018-05-21 | NPK International Inc. (NR) Delisted | Grant (A) | +13,953 | $0 | EDGAR |
| 2018-03-02 | OII | Grant (A) | +62,253 | $0 | EDGAR |
| 2018-02-21 | OII | Tax (F) | −4,805 | -$88.7K | EDGAR |
| 2017-05-19 | NPK International Inc. (NR) Delisted | Grant (A) | +19,230 | $0 | EDGAR |
| 2017-05-05 | OII | Grant (A) | +25,163 | $0 | EDGAR |
| 2017-02-27 | OII | Grant (A) | +22,693 | $0 | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.