Oceaneering International Inc (NYSE:OII) is held by 308 institutional investors per 13F filings through December 2025.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| BlackRock, Inc. | 31 Mar, 2026 | 16,348,842 | 345,492 | 2.16% | $579,893,415.00 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 31 Mar, 2026 | 7,578,921 | 7,578,921 | 0.00% | $268,824,328.00 |
| BROWN ADVISORY INC | 31 Mar, 2026 | 5,788,601 | -1,638,380 | -22.06% | $205,321,688.00 |
| State Street Corp | 31 Mar, 2026 | 5,034,196 | 386,944 | 8.33% | $178,562,932.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 4,478,763 | 4,478,763 | 0.00% | $158,861,724.00 |
| AMERICAN CENTURY COMPANIES INC | 31 Mar, 2026 | 3,766,674 | 158,584 | 4.40% | $133,603,927.00 |
| EARNEST PARTNERS LLC | 31 Mar, 2026 | 3,684,313 | -107,286 | -2.83% | $130,682,582.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 3,461,749 | -15,319 | -0.44% | $122,780,112.00 |
| Morgan Stanley Institutional Investment Advisors LLC | 31 Mar, 2026 | 3,453,005 | -494,017 | -12.52% | $122,478,102.00 |
| Neuberger Berman Group LLC | 31 Mar, 2026 | 3,218,259 | -116,862 | -3.50% | $114,151,647.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 2,376,461 | 71,723 | 3.11% | $84,308,259.00 |
| VAN ECK ASSOCIATES CORP | 31 Mar, 2026 | 2,061,487 | 561,430 | 37.43% | $73,121.00 |
| Greenhouse Funds LLLP | 31 Mar, 2026 | 2,032,489 | -435,771 | -17.65% | $72,092,385.00 |
| LOOMIS SAYLES & CO L P | 31 Mar, 2026 | 1,700,289 | -131,145 | -7.16% | $60,309,251.00 |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | 31 Mar, 2026 | 1,420,954 | 1,420,954 | 0.00% | $50,401,238.00 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 31 Mar, 2026 | 1,383,124 | -59,750 | -4.14% | $49,059,408.00 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 31 Mar, 2026 | 1,295,245 | 1,295,245 | 0.00% | $45,943.00 |
| Northern Trust Corp | 31 Mar, 2026 | 1,267,928 | 51,069 | 4.20% | $44,973,405.00 |
| Royal Bank Of Canada | 31 Mar, 2026 | 1,048,210 | -173,579 | -14.21% | $37,180,000.00 |
| Morgan Stanley | 31 Mar, 2026 | 1,040,333 | -720 | -0.07% | $36,900,630.00 |