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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, Q2 2025

Institutional positions in Oceaneering International Inc as of Jun 30, 2025. 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
288
+5 vs. Q1 2025
Shares held
95.8M
−252.9K (−0.3%) vs. Q1 2025
Total value
$1.99B
−$109.8M (−5.2%) vs. Q1 2025
New holders
47
114 more added
Sold out
42
98 more reduced

3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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.

Institutional holdersQ2 2025: 288 institutions
Q1 2021: 179 institutionsQ2 2021: 190 institutionsQ3 2021: 196 institutionsQ4 2021: 200 institutionsQ1 2022: 220 institutionsQ2 2022: 200 institutionsQ3 2022: 200 institutionsQ4 2022: 206 institutionsQ1 2023: 228 institutionsQ2 2023: 224 institutionsQ3 2023: 243 institutionsQ4 2023: 235 institutionsQ1 2024: 233 institutionsQ2 2024: 234 institutionsQ3 2024: 260 institutionsQ4 2024: 287 institutionsQ1 2025: 286 institutionsQ2 2025: 288 institutionsQ3 2025: 301 institutionsQ4 2025: 314 institutionsQ1 2026: 367 institutionsQ2 2026: 376 institutions
Value heldQ2 2025: $1.99B
Q1 2021: $994.6MQ2 2021: $1.37BQ3 2021: $1.16BQ4 2021: $984.8MQ1 2022: $1.36BQ2 2022: $986.3MQ3 2022: $725.9MQ4 2022: $1.63BQ1 2023: $1.67BQ2 2023: $1.76BQ3 2023: $2.39BQ4 2023: $2.01BQ1 2024: $2.24BQ2 2024: $2.36BQ3 2024: $2.51BQ4 2024: $2.62BQ1 2025: $2.10BQ2 2025: $1.99BQ3 2025: $2.37BQ4 2025: $2.41BQ1 2026: $3.61BQ2 2026: $4.22B
Institutions holding OII and their total value by quarter
QuarterHoldersValue
Q2 2026376$4.22B
Q1 2026367$3.61B
Q4 2025314$2.41B
Q3 2025301$2.37B
Q2 2025288$1.99B
Q1 2025286$2.10B
Q4 2024287$2.62B
Q3 2024260$2.51B
Q2 2024234$2.36B
Q1 2024233$2.24B
Q4 2023235$2.01B
Q3 2023243$2.39B
Q2 2023224$1.76B
Q1 2023228$1.67B
Q4 2022206$1.63B
Q3 2022200$725.9M
Q2 2022200$986.3M
Q1 2022220$1.36B
Q4 2021200$984.8M
Q3 2021196$1.16B
Q2 2021190$1.37B
Q1 2021179$994.6M

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Oceaneering International Inc; share changes are against Q1 2025.

Institutions holding OII in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.15,757,230$326.5M0.01%−879,127−5.3%Reduced
Vanguard Group Inc12,391,524$256.8M0.00%+29,978+0.2%Added
Brown Advisory Inc7,345,637$152.2M0.20%+799,718+12.2%Added
State Street Corp4,810,834$99.7M0.00%−38,711−0.8%Reduced
Earnest Partners LLC4,219,384$87.4M0.39%+1,9900.0%Added
Neuberger Berman Group LLC3,621,247$75.0M0.06%−240,156−6.2%Reduced
American Century Companies Inc3,370,206$69.8M0.04%+256,628+8.2%Added
Dimensional Fund Advisors LP3,187,618$66.1M0.02%+411,102+14.8%Added
Greenhouse Funds LLLP2,491,803$51.6M2.16%+223,724+9.9%Added
Geode Capital Management, LLC2,248,864$46.6M0.00%−77,593−3.3%Reduced
Loomis Sayles & Co L P1,926,047$39.9M0.05%−142,665−6.9%Reduced
Charles Schwab Investment Management Inc1,368,598$28.4M0.00%+37,301+2.8%Added
Balyasny Asset Management LLC1,361,917$28.2M0.06%+1,227,950+916.6%Added
Royal Bank of Canada1,360,656$28.2M0.01%+121,314+9.8%Added
Van Eck Associates Corp1,244,136$25.8M0.03%−239,168−16.1%Reduced
Franklin Resources Inc1,236,193$25.6M0.01%−92,970−7.0%Reduced
Northern Trust Corp1,148,091$23.8M0.00%−55,801−4.6%Reduced
Fort Washington Investment Advisors Inc1,134,244$23.5M0.14%+149,702+15.2%Added
Morgan Stanley1,050,683$21.8M0.00%+10,396+1.0%Added
Goldman Sachs Group Inc928,792$19.2M0.00%+162,200+21.2%Added
Aristotle Capital Boston, LLC870,569$18.0M0.92%−54,323−5.9%Reduced
Qube Research & Technologies Ltd812,325$16.8M0.02%+182,825+29.0%Added
Nuveen, LLC755,619$15.7M0.00%+205,721+37.4%Added
Millennium Management LLC732,371$15.2M0.01%+630,543+619.2%Added
Invesco Ltd.650,188$13.5M0.00%+48,382+8.0%Added
Bank of New York Mellon Corp644,035$13.3M0.00%−8,657−1.3%Reduced
Ranger Investment Management, L.P.614,225$12.7M0.89%−278,887−31.2%Reduced
UBS Group AG579,877$12.0M0.00%+245,890+73.6%Added
Fisher Asset Management, LLC573,330$11.9M0.00%+42,712+8.0%Added
Principal Financial Group Inc551,834$11.4M0.01%+12,600+2.3%Added
Bank of America Corp540,191$11.2M0.00%−30,275−5.3%Reduced
First Trust Advisors LP537,860$11.1M0.01%−2,349−0.4%Reduced
Boston Trust Walden Corp526,125$10.9M0.08%+526,125New
Cubist Systematic Strategies, LLC473,228$9.81M0.11%+64,384+15.7%Added
Goehring & Rozencwajg Associates, LLC465,178$9.64M1.47%−5,367−1.1%Reduced
SEI Investments Co459,733$9.53M0.01%+34,703+8.2%Added
Schroder Investment Management Group448,394$9.29M0.01%+96,795+27.5%Added
Sagefield Capital LP404,850$8.39M1.17%+49,261+13.9%Added
Edgestream Partners, L.P.403,247$8.36M0.23%+172,229+74.6%Added
JPMorgan Chase & Co392,321$8.13M0.00%−199,760−33.7%Reduced
Keating Investment Counselors Inc385,023$7.98M2.41%−2,210−0.6%Reduced
Algert Global LLC372,929$7.73M0.16%+67,030+21.9%Added
Gamco Investors, Inc. Et Al350,440$7.26M0.07%−19,750−5.3%Reduced
Public Sector Pension Investment Board342,944$7.11M0.03%+22,455+7.0%Added
ExodusPoint Capital Management, LP317,344$6.58M0.08%+317,344New
Barclays PLC290,850$6.03M0.00%+49,029+20.3%Added
FMR LLC284,773$5.90M0.00%−668,636−70.1%Reduced
AQR Capital Management LLC280,175$5.81M0.00%+117,786+72.5%Added
Legal & General Group Plc277,047$5.74M0.00%−501−0.2%Reduced
Envestnet Asset Management Inc273,680$5.67M0.00%−53,298−16.3%Reduced
Wells Fargo & Company249,624$5.17M0.00%−5,214−2.0%Reduced
UBS Asset Management Americas Inc244,681$5.07M0.00%+87,245+55.4%Added
Rhumbline Advisers239,590$4.96M0.00%−19,004−7.3%Reduced
State of Wisconsin Investment Board221,919$4.60M0.01%−4,649−2.1%Reduced
Ameriprise Financial Inc220,320$4.57M0.00%−17,081−7.2%Reduced
Jane Street Group, LLC214,992$4.45M0.01%+83,596+63.6%Added
Panagora Asset Management Inc205,773$4.26M0.02%+45,260+28.2%Added
Prudential Financial Inc204,673$4.24M0.01%−3,662−1.8%Reduced
Old West Investment Management, LLC196,637$4.07M1.34%−66,563−25.3%Reduced
Swiss National Bank193,048$4.00M0.00%−2,700−1.4%Reduced
Gabelli Funds LLC182,865$3.79M0.03%+8,892+5.1%Added
EFG Asset Management (North America) Corp.179,408$3.72M0.53%+25,937+16.9%Added
Susquehanna International Group, LLP179,356$3.72M0.01%+24,375+15.7%Added
Point72 Asset Management, L.P.175,000$3.63M0.01%+175,000New
New York State Teachers Retirement System166,252$3.44M0.01%−5,800−3.4%Reduced
Tudor Investment Corp Et Al158,262$3.28M0.02%+30,853+24.2%Added
Thrivent Financial for Lutherans146,548$3.04M0.01%−262−0.2%Reduced
Concurrent Investment Advisors, LLC141,837$2.94M0.06%+12,982+10.1%Added
Deutsche Bank AG134,300$2.78M0.00%−13,342−9.0%Reduced
Empowered Funds, LLC121,991$2.53M0.03%+1,215+1.0%Added
Alliancebernstein L.P.116,660$2.42M0.00%00.0%Unchanged
Federated Hermes, Inc.116,146$2.41M0.00%−27,981−19.4%Reduced
Russell Investments Group, Ltd.115,515$2.39M0.00%−37,838−24.7%Reduced
HRT Financial LP100,457$2.08M0.01%+100,457New
Essex Investment Management Co LLC100,336$2.08M0.38%+100,336New
State of New Jersey Common Pension Fund D99,181$2.06M0.01%+11,607+13.3%Added
CoreCommodity Management, LLC98,051$2.03M0.33%+22,967+30.6%Added
Citigroup Inc97,033$2.01M0.00%−129,722−57.2%Reduced
D. E. Shaw & Co., Inc.94,127$1.95M0.00%−58,939−38.5%Reduced
California State Teachers Retirement System93,342$1.93M0.00%+634+0.7%Added
Isthmus Partners, LLC89,822$1.86M0.22%+1,345+1.5%Added
Price T Rowe Associates Inc88,951$1.84M0.00%+2,473+2.9%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.87,004$1.80M0.00%+20,815+31.4%Added
Renaissance Technologies LLC85,600$1.77M0.00%+31,500+58.2%Added
Quest Partners LLC84,475$1.75M0.17%+19,009+29.0%Added
Dark Forest Capital Management LP83,675$1.73M0.07%+3,153+3.9%Added
Engineers Gate Manager LP83,590$1.73M0.02%+8,874+11.9%Added
Great West Life Assurance Co83,103$1.72M0.00%−2,883−3.4%Reduced
Wedge Capital Management L L P80,368$1.67M0.03%+10,471+15.0%Added
Intech Investment Management LLC79,258$1.64M0.02%−14,369−15.3%Reduced
Glenorchy Capital Ltd76,328$1.58M1.16%−161−0.2%Reduced
Zacks Investment Management71,887$1.49M0.01%+71,887New
Norges Bank71,663$1.48M0.00%−20,206−22.0%Reduced
Jennison Associates LLC71,342$1.48M0.00%+13,879+24.2%Added
LPL Financial LLC69,759$1.45M0.00%+20,056+40.4%Added
Citadel Advisors LLC67,922$1.41M0.00%−56,323−45.3%Reduced
Oppenheimer Asset Management Inc.67,398$1.40M0.02%−2,741−3.9%Reduced
Pathstone Holdings, LLC62,893$1.30M0.01%+10,006+18.9%Added
Kestra Advisory Services, LLC61,112$1.27M0.01%−653−1.1%Reduced
State of Alaska, Department of Revenue59,900$1.24M0.01%+3,903+7.0%Added