Who Owns OCEANEERING INTL INC (OII)? -- Institutional Holders (2026-06-30)

425 institutions reported holding $4.29B of OCEANEERING INTL INC (OII) in SEC 13F filings for 2026-06-30. Largest institutional holders: BlackRock, Inc. ($664.7M), VANGUARD GROUP INC ($537.7M), STATE STREET CORP ($202.4M), BROWN ADVISORY INC ($201.3M), AMERICAN CENTURY COMPANIES INC ($163.1M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1BlackRock, Inc.$664.7M16.4MAdded
2VANGUARD GROUP INC$537.7M13.3MAdded
3STATE STREET CORP$202.4M5.0MTrimmed
4BROWN ADVISORY INC$201.3M5.0MTrimmed
5AMERICAN CENTURY COMPANIES INC$163.1M4.0MAdded
6EARNEST PARTNERS LLC$143.7M3.5MTrimmed
7DIMENSIONAL FUND ADVISORS LP$143.7M3.5MAdded
8NEUBERGER BERMAN GROUP LLC$130.8M3.2MAdded
9Morgan Stanley Institutional Investment Advisors LLC$124.2M3.1MTrimmed
10FRANKLIN RESOURCES INC$124.0M3.1MAdded
11GEODE CAPITAL MANAGEMENT, LLC$115.1M2.8MAdded
12BARROW HANLEY MEWHINNEY & STRAUSS LLC$92.1M2.3MAdded
13Greenhouse Funds LLLP$76.8M1.9MTrimmed
14VAN ECK ASSOCIATES CORP$75.0M1.8MTrimmed
15REINHART PARTNERS, LLC.$66.8M1.6MNew
16LOOMIS SAYLES & CO L P$65.1M1.6MTrimmed
17NORTHERN TRUST CORP$55.6M1.4MAdded
18CHARLES SCHWAB INVESTMENT MANAGEMENT INC$54.3M1.3MTrimmed
19Sixth Street Partners Management Company, L.P.$54.3M1.3MNew
20NOMURA ASSET MANAGEMENT INTERNATIONAL INC.$53.9M1.3MNew
21PRICE T ROWE ASSOCIATES INC /MD/$53.5M1.3MAdded
22MORGAN STANLEY$48.9M1.2MAdded
23Bank of New York Mellon Corp$45.7M1.1MAdded
24GOLDMAN SACHS GROUP INC$43.6M1.1MAdded
25Royal Bank of Canada$37.8M932,192Trimmed

Source: SEC Form 13F filings · as of 2026-06-30