Oceaneering Intl (OII) Held by Superinvestors
OCEANEERING INTL INC (OII) is currently held by 2 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $2.04M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Renaissance Technologies LLC is currently the largest disclosed institutional shareholder of OII tracked by InsiderSet, reporting ownership valued at approximately $1.81M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.76M, representing an estimated loss of -3.08% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed OII value among the investors covered in this analysis. Major shareholders include Renaissance Technologies LLC, Sequoia Financial Advisors, and several other long-term asset managers with concentrated positions in OCEANEERING INTL INC (OII).
This page ranks the largest institutional OII shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Renaissance Technologies LLC | Jim Simons | 0.00% | 44,792 | $1,814,972 | $1,758,982 | -$55,990 | -3.08% |
| Sequoia Financial Advisors | 0.00% | 5,528 | $223,995 | $217,085 | -$6,910 | -3.09% |
Frequently asked questions about OII
Who are the largest superinvestors holding OII?
The largest superinvestors holding OII in the latest SEC Form 13F filings include Renaissance Technologies LLC and Sequoia Financial Advisors. InsiderSet ranks these superinvestors by their latest reported OII position.
What does the OII superinvestors page include?
This page tracks OII positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. OCEANEERING INTL INC (OII) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold OII?
InsiderSet currently tracks 2 superinvestors reporting OII holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own OII.
How much OII stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $2.04M in OII holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were OII superinvestor holdings last updated?
The latest OII superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor OII holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its OII position after the reporting date.
Are superinvestors buying or selling OII?
Buying and selling can be analyzed by comparing OII positions across consecutive 13F reporting periods. InsiderSet's OII Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View OII ownership changes.
How have superinvestor OII holdings changed over time?
InsiderSet tracks OII holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.