OCEANEERING INTL INC (OII) Institutional Ownership Changes & 13F Activity
OCEANEERING INTL INC (OII). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Nomura Asset Management International Inc., Brown Advisory Inc, Invesco Ltd., Barclays Plc, and Van Eck Associates Corp.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Buy | +4,179 | +9.3% | 49,067 | $1.99M | Q2 2026 | Sep 09, 2026 |
| Parkside Financial Bank & Trust | Sell | -1,943 | -94.4% | 115 | $4.66K | Q2 2026 | Sep 04, 2026 |
| Corient Private Wealth Llc | Buy | +5,411 | +50.0% | 16,227 | $657.52K | Q2 2026 | Aug 27, 2026 |
| California State Teachers Retirement System | Sell | -3,343 | -2.8% | 116,278 | $4.71M | Q2 2026 | Aug 24, 2026 |
| Mercer Global Advisors Inc | Buy | +1,565 | +17.1% | 10,742 | $435.27K | Q2 2026 | Aug 19, 2026 |
| Fulcrum Asset Management Llp | Sell | -5,287 | -13.6% | 33,530 | $1.33M | Q2 2026 | Aug 18, 2026 |
| Capstone Investment Advisors, Llc | Buy | +25,094 | — | 25,094 | $1.02M | Q2 2026 | Aug 17, 2026 |
| Integrated Investment Consultants, Llc | Buy | +11,844 | — | 11,844 | $479.92K | Q2 2026 | Aug 17, 2026 |
| Empowered Funds, Llc | Buy | +1,476 | +1.1% | 134,103 | $5.43M | Q2 2026 | Aug 17, 2026 |
| Public Employees Retirement System Of Ohio | Sell | -96 | -6.7% | 1,334 | $54.05K | Q2 2026 | Aug 17, 2026 |
| Nomura Asset Management International Inc. | Buy | +1,330,080 | — | 1,330,080 | $53.90M | Q2 2026 | Aug 14, 2026 |
| Brown Advisory Inc | Sell | -821,294 | -14.2% | 4,967,307 | $201.28M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +638,880 | — | 638,880 | $25.89M | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Sell | -281,976 | -94.4% | 16,733 | $678.02K | Q2 2026 | Aug 14, 2026 |
| Van Eck Associates Corp | Sell | -211,561 | -10.3% | 1,849,926 | $74.96M | Q2 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Buy | +208,057 | — | 208,057 | $8.43M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Buy | +154,688 | — | 154,688 | $6.27M | Q2 2026 | Aug 14, 2026 |
| Greenhouse Funds Lllp | Sell | -136,146 | -6.7% | 1,896,343 | $76.84M | Q2 2026 | Aug 14, 2026 |
| Sei Investments Co | Sell | -126,599 | -28.7% | 314,092 | $12.73M | Q2 2026 | Aug 14, 2026 |
| Royal Bank Of Canada | Sell | -116,018 | -11.1% | 932,192 | $37.77M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Buy | +103,596 | +39.7% | 364,827 | $14.78M | Q2 2026 | Aug 14, 2026 |
| Loomis Sayles & Co L P | Sell | -94,194 | -5.5% | 1,606,095 | $65.08M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +76,666 | +7.7% | 1,076,557 | $43.62M | Q2 2026 | Aug 14, 2026 |
| Aqr Capital Management Llc | Buy | +56,890 | +14.5% | 449,040 | $18.20M | Q2 2026 | Aug 14, 2026 |
| Alliancebernstein L.P. | Buy | +56,702 | +39.0% | 202,234 | $7.17M | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Buy | +54,051 | +29.6% | 236,766 | $9.59M | Q2 2026 | Aug 14, 2026 |
| Geosphere Capital Management, Llc | Sell | -50,311 | -41.9% | 69,689 | $2.82M | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Sell | -47,393 | -65.7% | 24,742 | $1.00M | Q2 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Sell | -43,533 | -3.1% | 1,339,591 | $54.28M | Q2 2026 | Aug 14, 2026 |
| Curi Capital, Llc | Buy | +42,275 | +25.4% | 208,552 | $8.45M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about OII activity
Which institutional owners are buying OII?
Institutional owners buying OII include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in OII activity?
"Buy" means an investor increased their reported position in OII compared to the prior reporting period. This reflects growing exposure to OCEANEERING INTL INC (OII) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in OII increasing?
Institutional interest in OII can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related OII Institutional Insights
- OII Overview
- OII 13F Institutional Holders
- OII Top Institutional Shareholders
- Energy Sector Institutional Ownership
- Energy Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Energy Stocks By Institutional Investors
- Most Sold Energy Stocks By Institutional Investors
- OII Insider Trading & SEC Form 4 Activity
- OII Articles
- Top Institutional Investor Stock Rankings