Oceaneering IntlOII
13F holders, Q1 2026 (March 31)367holders +53
84new positions
31sold out
6famous investors
$35.45avg. 13F price*
At the end of Q1 2026, 367 institutions reported holding Oceaneering Intl Inc. (OII) in their 13F filings, up 53 from Q4 2025. 84 opened new positions and 31 sold out. The largest holders were BlackRock, Inc. ($579.9M), Vanguard Portfolio Management LLC ($268.8M) and Brown Advisory Inc. ($205.3M). 6 famous investors held it, including Mario Gabelli (0.1% of GAMCO Investors's portfolio), Ken Fisher (0.0% of Fisher Asset Management's portfolio) and Joel Greenblatt (0.0% of Gotham Asset Management's portfolio).
- Company
- Oceaneering Intl Inc.
- CUSIP
- 675232102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 84 | $178.7M |
| Exits | 31 | $47.9M |
All 13F filers, Q4 2025 → Q1 2026: 10,708,320 shares bought and 9,297,397 shares sold, net +1,410,923 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 367 holders
| BlackRock, Inc. | 0.01% | Add +2.2% | 16,348,842 | $579.9M |
| Vanguard Portfolio Management LLC | 0.01% | — | 7,578,921 | $268.8M |
| Brown Advisory Inc. | 0.34% | Reduce -22.1% | 5,788,601 | $205.3M |
| State Street Corp. | 0.01% | Add +8.3% | 5,034,196 | $178.6M |
| Vanguard Capital Management LLC | 0.00% | — | 4,478,763 | $158.9M |
| American Century Companies Inc. | 0.07% | Add +4.4% | 3,766,674 | $133.6M |
| Earnest Partners LLC | 0.54% | Reduce -2.8% | 3,684,313 | $130.7M |
| Dimensional Fund Advisors LP | 0.03% | Reduce -0.4% | 3,461,749 | $122.8M |
| Morgan Stanley Institutional Investment Advisors LLC | 11.81% | Reduce -12.5% | 3,453,005 | $122.5M |
| Neuberger Berman Group LLC | 0.09% | Reduce -3.5% | 3,218,259 | $114.2M |
| Geode Capital Management, LLC | 0.01% | Add +3.1% | 2,376,461 | $84.3M |
| Van Eck Associates Corp. | 0.06% | Add +37.4% | 2,061,487 | $73.1M |
| Greenhouse Funds LLLP | 3.42% | Reduce -17.6% | 2,032,489 | $72.1M |
| Loomis Sayles & Co. L P | 0.08% | Reduce -7.2% | 1,700,289 | $60.3M |
| Barrow Hanley Mewhinney & Strauss LLC | 0.17% | New | 1,420,954 | $50.4M |
| Charles Schwab Investment Management Inc. | 0.01% | Reduce -4.1% | 1,383,124 | $49.1M |
| T. Rowe Price Associates Inc. | 0.01% | Add +1178.5% | 1,295,245 | $45.9M |
| Northern Trust Corp. | 0.01% | Add +4.2% | 1,267,928 | $45.0M |
| Royal Bank of Canada | 0.01% | Reduce -14.2% | 1,048,210 | $37.2M |
| Morgan Stanley | 0.00% | Reduce -0.1% | 1,040,333 | $36.9M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -21.5% | 999,891 | $35.5M |
| Boston Partners | 0.03% | New | 854,941 | $30.3M |
| Franklin Resources Inc. | 0.01% | Add +85.7% | 828,372 | $29.4M |
| Ranger Investment Management, L.P. | 2.04% | Reduce -0.8% | 796,595 | $28.3M |
| Fisher Asset Management | 0.01% | Reduce -0.1% | 792,269 | $28.1M |
| Bank of New York Mellon Corp | 0.00% | Reduce -1.9% | 755,271 | $26.8M |
| Goehring & Rozencwajg Associates, LLC | 1.36% | Add +25.5% | 713,586 | $25.3M |
| Invesco Ltd. | 0.00% | Add +17.5% | 701,665 | $24.9M |
| Old West Investment Management, LLC | 2.68% | Add +28.3% | 697,193 | $24.7M |
| Vanguard Fiduciary Trust Co. | 0.01% | — | 690,608 | $24.5M |
| Federated Hermes, Inc. | 0.04% | Add +526.2% | 688,220 | $24.4M |
| Massachusetts Financial Services Co. | 0.01% | New | 681,600 | $24.2M |
| Schroder Investment Management Group | 0.02% | Add +20.4% | 604,219 | $21.4M |
| Qube Research & Technologies Ltd | 0.03% | Reduce -49.5% | 588,323 | $20.9M |
| Principal Financial Group Inc. | 0.01% | Add +1.5% | 585,358 | $20.8M |
| Fort Washington Investment Advisors Inc. | 0.10% | Reduce -38.6% | 526,034 | $18.7M |
| Boston Trust Walden Corp | 0.15% | Reduce -2.4% | 519,477 | $18.4M |
| JPMorgan Chase & Co. | 0.00% | Add +4.2% | 529,104 | $18.2M |
| Panagora Asset Management Inc. | 0.06% | Add +25.7% | 482,776 | $17.1M |
| Algert Global LLC | 0.24% | Reduce -35.3% | 452,885 | $16.1M |
| Sei Investments Co. | 0.01% | Add +5.2% | 440,691 | $15.6M |
| First Trust Advisors LP | 0.01% | Reduce -22.6% | 435,176 | $15.4M |
| Nuveen, LLC | 0.00% | Reduce -37.9% | 435,150 | $15.4M |
| AQR Capital Management | 0.01% | Add +5.2% | 392,150 | $13.9M |
| Storebrand Asset Management As | 0.04% | New | 366,188 | $13.0M |
| Agf Management Ltd. | 0.06% | Reduce -2.3% | 365,938 | $13.0M |
| Public Sector Pension Investment Board | 0.04% | Add +3.4% | 356,983 | $12.7M |
| FMR LLC | 0.00% | Add +28.1% | 345,532 | $12.3M |
| Keating Investment Counselors Inc. | 2.97% | Reduce -4.5% | 338,438 | $12.0M |
| GAMCO Investors | 0.12% | Reduce -1.0% | 338,298 | $12.0M |
| Granite Investment Partners, LLC | 0.71% | Add +37.2% | 327,053 | $11.6M |
| UBS Group AG | 0.00% | Reduce -31.1% | 315,828 | $11.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +3.0% | 299,573 | $10.6M |
| Barclays PLC | 0.00% | Reduce -28.3% | 298,709 | $10.6M |
| Envestnet Asset Management Inc. | 0.00% | Add +22.3% | 279,711 | $9.9M |
| Aristotle Capital Boston, LLC | 0.60% | Reduce -39.7% | 271,490 | $9.6M |
| Bank of America Corp. | 0.00% | Reduce -58.4% | 261,231 | $9.3M |
| Russell Investments Group, Ltd. | 0.01% | Reduce -8.5% | 245,462 | $8.7M |
| Sagefield Capital LP | 0.62% | Reduce -35.8% | 244,160 | $8.7M |
| Legal & General Group Plc | 0.00% | Reduce -7.9% | 233,926 | $8.3M |
| Rhumbline Advisers | 0.01% | Add +3.2% | 233,833 | $8.3M |
| Prudential Financial Inc. | 0.01% | Reduce -14.8% | 220,871 | $7.8M |
| Janus Henderson Group PLC | 0.00% | Add +393.6% | 217,255 | $7.7M |
| Archon Capital Management LLC | 4.17% | New | 208,000 | $7.4M |
| BNP Paribas Financial Markets | 0.00% | Add +6.9% | 207,336 | $7.4M |
| Ameriprise Financial Inc. | 0.00% | Reduce -4.6% | 200,965 | $7.1M |
| Swiss National Bank | 0.00% | No change | 197,548 | $7.0M |
| Wells Fargo & Company | 0.00% | Reduce -31.3% | 182,715 | $6.5M |
| Gabelli Funds LLC | 0.04% | Reduce -2.6% | 182,025 | $6.5M |
| Curi Capital, LLC | 0.11% | New | 166,277 | $5.9M |
| Cannell & Spears LLC | 0.12% | New | 164,478 | $5.8M |
| Manatuck Hill Partners, LLC | 1.87% | Add +1415.1% | 160,600 | $5.7M |
| New York State Teachers Retirement System | 0.01% | Reduce -3.4% | 158,664 | $5.6M |
| Essex Investment Management Co. LLC | 0.89% | Add +1.9% | 158,374 | $5.6M |
| Leuthold Group, LLC | 0.57% | Add +1.7% | 150,172 | $5.3M |
| Empowered Funds, LLC | 0.03% | New | 132,627 | $4.7M |
| Informed Momentum Co LLC | 0.52% | New | 127,269 | $4.5M |
| GeoSphere Capital Management, LLC | 2.56% | New | 120,000 | $4.3M |
| California State Teachers Retirement System | 0.00% | Add +27.9% | 119,621 | $4.2M |
| EFG International AG | 0.09% | Reduce -22.4% | 118,139 | $4.2M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.00% | Reduce -0.7% | 117,754 | $4.2M |
| Concurrent Investment Advisors, LLC | 0.05% | Add +0.3% | 116,547 | $4.1M |
| Edgestream Partners, L.P. | 0.14% | Add +306.2% | 116,544 | $4.1M |
| State of Wisconsin Investment Board | 0.01% | Reduce -57.0% | 112,318 | $4.0M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Add +19.8% | 101,131 | $3.6M |
| Alliancebernstein L.P. | 0.00% | Add +30.1% | 145,532 | $3.5M |
| Intech Investment Management LLC | 0.03% | Reduce -67.4% | 97,319 | $3.5M |
| Isthmus Partners, LLC | 0.36% | Reduce -1.3% | 96,364 | $3.4M |
| New York State Common Retirement Fund | 0.00% | Add +24.7% | 91,568 | $3.2M |
| Deutsche Bank AG | 0.00% | Add +11.6% | 88,098 | $3.1M |
| Renaissance Technologies | 0.00% | Add +202.5% | 85,000 | $3.0M |
| Royce & Associates LP | 0.03% | Add +56.6% | 83,017 | $2.9M |
| Corigliano Investment Advisers, LLC | 1.14% | New | 82,600 | $2.9M |
| CANADA LIFE ASSURANCE Co | 0.01% | Reduce -5.0% | 81,215 | $2.9M |
| Citadel Advisors | 0.00% | Add +24.9% | 78,377 | $2.8M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 74,948 | $2.7M |
| Glenorchy Capital Ltd | 1.42% | Add +1.7% | 74,265 | $2.6M |
| Susquehanna International Group, LLP | 0.00% | Add +25.4% | 72,135 | $2.6M |
| Vident Advisory, LLC | 0.02% | New | 70,929 | $2.5M |
| Legato Capital Management LLC | 0.22% | Add +1.4% | 69,328 | $2.5M |
"% of holder's portfolio" is OII's weight in each manager's 13F, not the share of Oceaneering Intl Inc. the manager owns.