Oceaneering International Inc
OII- Exchange
- NYSE
- Industry
- Oil & Gas Field Services, NEC
- SEC CIK
- 0000073756
In the last 90 days, Oceaneering International Inc insiders filed 0 open-market purchases and 5 sales; 376 institutions reported holding it in 13F filings for Q2 2026, worth $4.22B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Oceaneering International Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 367
- +57 vs. Q4 2025
- Shares held
- 101.7M
- +14.2M (+16.3%) vs. Q4 2025
- Total value
- $3.61B
- +$1.50B (+71.5%) vs. Q4 2025
- New holders
- 90
- 132 more added
- Sold out
- 33
- 104 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting OII on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 376 | $4.22B |
| Q1 2026 | 367 | $3.61B |
| Q4 2025 | 314 | $2.41B |
| Q3 2025 | 301 | $2.37B |
| Q2 2025 | 288 | $1.99B |
| Q1 2025 | 286 | $2.10B |
| Q4 2024 | 287 | $2.62B |
| Q3 2024 | 260 | $2.51B |
| Q2 2024 | 234 | $2.36B |
| Q1 2024 | 233 | $2.24B |
| Q4 2023 | 235 | $2.01B |
| Q3 2023 | 243 | $2.39B |
| Q2 2023 | 224 | $1.76B |
| Q1 2023 | 228 | $1.67B |
| Q4 2022 | 206 | $1.63B |
| Q3 2022 | 200 | $725.9M |
| Q2 2022 | 200 | $986.3M |
| Q1 2022 | 220 | $1.36B |
| Q4 2021 | 200 | $984.8M |
| Q3 2021 | 196 | $1.16B |
| Q2 2021 | 190 | $1.37B |
| Q1 2021 | 179 | $994.6M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Oceaneering International Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 16,348,842 | $579.9M | 0.01% | +345,492+2.2% | Added |
| Vanguard Portfolio Management LLC | 7,578,921 | $268.8M | 0.01% | +7,578,921 | New |
| Brown Advisory Inc | 5,788,601 | $205.3M | 0.34% | −1,638,380−22.1% | Reduced |
| State Street Corp | 5,034,196 | $178.6M | 0.01% | +386,944+8.3% | Added |
| Vanguard Capital Management LLC | 4,478,763 | $158.9M | 0.00% | +4,478,763 | New |
| American Century Companies Inc | 3,766,674 | $133.6M | 0.07% | +158,584+4.4% | Added |
| Earnest Partners LLC | 3,684,313 | $130.7M | 0.54% | −107,286−2.8% | Reduced |
| Dimensional Fund Advisors LP | 3,461,749 | $122.8M | 0.03% | −15,319−0.4% | Reduced |
| Morgan Stanley Institutional Investment Advisors LLC | 3,453,005 | $122.5M | 11.81% | −494,017−12.5% | Reduced |
| Neuberger Berman Group LLC | 3,218,259 | $114.2M | 0.09% | −116,862−3.5% | Reduced |
| Geode Capital Management, LLC | 2,376,461 | $84.3M | 0.01% | +71,723+3.1% | Added |
| Van Eck Associates Corp | 2,061,487 | $73.1M | 0.05% | +561,430+37.4% | Added |
| Greenhouse Funds LLLP | 2,032,489 | $72.1M | 3.42% | −435,771−17.7% | Reduced |
| Loomis Sayles & Co L P | 1,700,289 | $60.3M | 0.08% | −131,145−7.2% | Reduced |
| Barrow Hanley Mewhinney & Strauss LLC | 1,420,954 | $50.4M | 0.17% | +1,420,954 | New |
| Charles Schwab Investment Management Inc | 1,383,124 | $49.1M | 0.01% | −59,750−4.1% | Reduced |
| Price T Rowe Associates Inc | 1,295,245 | $45.9M | 0.01% | +1,193,937+1,178.5% | Added |
| Northern Trust Corp | 1,267,928 | $45.0M | 0.01% | +51,069+4.2% | Added |
| Royal Bank of Canada | 1,048,210 | $37.2M | 0.01% | −173,579−14.2% | Reduced |
| Morgan Stanley | 1,040,333 | $36.9M | 0.00% | −720−0.1% | Reduced |
| Goldman Sachs Group Inc | 999,891 | $35.5M | 0.00% | −273,778−21.5% | Reduced |
| Boston Partners | 854,941 | $30.3M | 0.03% | +854,941 | New |
| Franklin Resources Inc | 828,372 | $29.4M | 0.01% | +382,168+85.6% | Added |
| Ranger Investment Management, L.P. | 796,595 | $28.3M | 2.04% | −6,040−0.8% | Reduced |
| Fisher Asset Management, LLC | 792,269 | $28.1M | 0.01% | −829−0.1% | Reduced |
| Bank of New York Mellon Corp | 755,271 | $26.8M | 0.00% | −14,975−1.9% | Reduced |
| Goehring & Rozencwajg Associates, LLC | 713,586 | $25.3M | 1.36% | +144,852+25.5% | Added |
| Invesco Ltd. | 701,665 | $24.9M | 0.00% | +104,302+17.5% | Added |
| Old West Investment Management, LLC | 697,193 | $24.7M | 2.68% | +153,922+28.3% | Added |
| Vanguard Fiduciary Trust Co | 690,608 | $24.5M | 0.01% | +690,608 | New |
| Federated Hermes, Inc. | 688,220 | $24.4M | 0.04% | +578,319+526.2% | Added |
| Massachusetts Financial Services Co | 681,600 | $24.2M | 0.01% | +681,600 | New |
| Schroder Investment Management Group | 604,219 | $21.4M | 0.02% | +102,305+20.4% | Added |
| Qube Research & Technologies Ltd | 588,323 | $20.9M | 0.03% | −577,613−49.5% | Reduced |
| Principal Financial Group Inc | 585,358 | $20.8M | 0.01% | +8,536+1.5% | Added |
| Fort Washington Investment Advisors Inc | 526,034 | $18.7M | 0.10% | −330,610−38.6% | Reduced |
| Boston Trust Walden Corp | 519,477 | $18.4M | 0.15% | −12,702−2.4% | Reduced |
| JPMorgan Chase & Co | 529,104 | $18.2M | 0.00% | +21,221+4.2% | Added |
| Panagora Asset Management Inc | 482,776 | $17.1M | 0.06% | +98,810+25.7% | Added |
| Algert Global LLC | 452,885 | $16.1M | 0.24% | −246,761−35.3% | Reduced |
| SEI Investments Co | 440,691 | $15.6M | 0.01% | +21,905+5.2% | Added |
| First Trust Advisors LP | 435,176 | $15.4M | 0.01% | −127,310−22.6% | Reduced |
| Nuveen, LLC | 435,150 | $15.4M | 0.00% | −265,131−37.9% | Reduced |
| AQR Capital Management LLC | 392,150 | $13.9M | 0.01% | +19,401+5.2% | Added |
| Storebrand Asset Management AS | 366,188 | $13.0M | 0.04% | +366,188 | New |
| Agf Management Ltd | 365,938 | $13.0M | 0.06% | −8,780−2.3% | Reduced |
| Public Sector Pension Investment Board | 356,983 | $12.7M | 0.04% | +11,713+3.4% | Added |
| FMR LLC | 345,532 | $12.3M | 0.00% | +75,767+28.1% | Added |
| Keating Investment Counselors Inc | 338,438 | $12.0M | 2.97% | −15,918−4.5% | Reduced |
| Gamco Investors, Inc. Et Al | 338,298 | $12.0M | 0.12% | −3,542−1.0% | Reduced |
| Granite Investment Partners, LLC | 327,053 | $11.6M | 0.71% | +88,673+37.2% | Added |
| UBS Group AG | 315,828 | $11.2M | 0.00% | −142,383−31.1% | Reduced |
| UBS Asset Management Americas Inc | 299,573 | $10.6M | 0.00% | +8,669+3.0% | Added |
| Barclays PLC | 298,709 | $10.6M | 0.00% | −118,083−28.3% | Reduced |
| Envestnet Asset Management Inc | 279,711 | $9.92M | 0.00% | +51,022+22.3% | Added |
| Aristotle Capital Boston, LLC | 271,490 | $9.63M | 0.60% | −178,816−39.7% | Reduced |
| Bank of America Corp | 261,231 | $9.27M | 0.00% | −366,703−58.4% | Reduced |
| Russell Investments Group, Ltd. | 245,462 | $8.71M | 0.01% | −22,714−8.5% | Reduced |
| Sagefield Capital LP | 244,160 | $8.66M | 0.62% | −135,910−35.8% | Reduced |
| Legal & General Group Plc | 233,926 | $8.30M | 0.00% | −20,133−7.9% | Reduced |
| Rhumbline Advisers | 233,833 | $8.29M | 0.01% | +7,210+3.2% | Added |
| Prudential Financial Inc | 220,871 | $7.83M | 0.01% | −38,440−14.8% | Reduced |
| Janus Henderson Group PLC | 217,255 | $7.71M | 0.00% | +173,237+393.6% | Added |
| Archon Capital Management LLC | 208,000 | $7.38M | 4.16% | +208,000 | New |
| BNP Paribas Arbitrage, SA | 207,336 | $7.35M | 0.00% | +13,384+6.9% | Added |
| Ameriprise Financial Inc | 200,965 | $7.13M | 0.00% | −9,714−4.6% | Reduced |
| Swiss National Bank | 197,548 | $7.01M | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 182,715 | $6.48M | 0.00% | −83,190−31.3% | Reduced |
| Gabelli Funds LLC | 182,025 | $6.46M | 0.04% | −4,948−2.6% | Reduced |
| RMB Capital Management, LLC | 166,277 | $5.90M | 0.11% | +166,277 | New |
| Spears Abacus Advisors LLC | 164,478 | $5.83M | 0.11% | +164,478 | New |
| Manatuck Hill Partners, LLC | 160,600 | $5.70M | 1.87% | +150,000+1,415.1% | Added |
| New York State Teachers Retirement System | 158,664 | $5.63M | 0.01% | −5,593−3.4% | Reduced |
| Essex Investment Management Co LLC | 158,374 | $5.62M | 0.89% | +2,940+1.9% | Added |
| Leuthold Group, LLC | 150,172 | $5.33M | 0.57% | +2,533+1.7% | Added |
| Empowered Funds, LLC | 132,627 | $4.70M | 0.03% | +132,627 | New |
| EAM Investors, LLC | 127,269 | $4.51M | 0.52% | +127,269 | New |
| GeoSphere Capital Management, LLC | 120,000 | $4.26M | 2.56% | +120,000 | New |
| California State Teachers Retirement System | 119,621 | $4.24M | 0.00% | +26,058+27.9% | Added |
| EFG International AG | 118,139 | $4.20M | 0.09% | −34,153−22.4% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 117,754 | $4.18M | 0.00% | −794−0.7% | Reduced |
| Concurrent Investment Advisors, LLC | 116,547 | $4.13M | 0.05% | +388+0.3% | Added |
| Edgestream Partners, L.P. | 116,544 | $4.13M | 0.14% | +87,851+306.2% | Added |
| State of Wisconsin Investment Board | 112,318 | $3.98M | 0.01% | −149,135−57.0% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 101,131 | $3.59M | 0.00% | +16,715+19.8% | Added |
| Alliancebernstein L.P. | 145,532 | $3.50M | 0.00% | +33,710+30.1% | Added |
| Intech Investment Management LLC | 97,319 | $3.45M | 0.03% | −200,806−67.4% | Reduced |
| Isthmus Partners, LLC | 96,364 | $3.42M | 0.36% | −1,265−1.3% | Reduced |
| New York State Common Retirement Fund | 91,568 | $3.25M | 0.00% | +18,146+24.7% | Added |
| Deutsche Bank AG | 88,098 | $3.12M | 0.00% | +9,121+11.5% | Added |
| Renaissance Technologies LLC | 85,000 | $3.01M | 0.00% | +56,900+202.5% | Added |
| Royce & Associates LP | 83,017 | $2.94M | 0.03% | +30,000+56.6% | Added |
| Corigliano Investment Advisers, LLC | 82,600 | $2.93M | 1.14% | +82,600 | New |
| Great West Life Assurance Co | 81,215 | $2.89M | 0.01% | −4,230−5.0% | Reduced |
| Citadel Advisors LLC | 78,377 | $2.78M | 0.00% | +15,604+24.9% | Added |
| Vanguard Asset Management, Ltd | 74,948 | $2.66M | 0.00% | +74,948 | New |
| Glenorchy Capital Ltd | 74,265 | $2.63M | 1.42% | +1,270+1.7% | Added |
| Susquehanna International Group, LLP | 72,135 | $2.56M | 0.00% | +14,635+25.5% | Added |
| Vident Advisory, LLC | 70,929 | $2.52M | 0.02% | +70,929 | New |
| Legato Capital Management LLC | 69,328 | $2.46M | 0.22% | +967+1.4% | Added |