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Oceaneering International (OII) Institutional Ownership

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$23.97 +1.00 (+4.36%)
Closing price 08/22/2025 03:59 PM Eastern
Extended Trading
$23.99 +0.02 (+0.08%)
As of 08/22/2025 05:10 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.

Institutional Ownership Changes (13F Filings) for Oceaneering International (NYSE:OII)

Current
Institutional Ownership
Percentage
93.93%
Number of
Institutional Buyers
(last 12 months)
179
Total
Institutional Inflows
(last 12 months)
$421.50M
Number of
Institutional Sellers
(last 12 months)
125
Total
Institutional Outflows
(last 12 months)
$232.96M
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OII Institutional Buying and Selling by Quarter

Oceaneering International Major Shareholders & Ownership History

Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/19/2025 Ranger Investment Management L.P.614,225$12.73M0.9%-31.2%0.613%
8/16/2025 Nikko Asset Management Americas Inc.27,135$562K0.0%-2.0%0.027%
8/16/2025 Public Sector Pension Investment Board342,944$7.11M0.0%+7.0%0.342%
8/16/2025 Headlands Technologies LLC4,418$92K0.0%N/A0.004%
8/15/2025 CANADA LIFE ASSURANCE Co83,103$1.72M0.0%-3.4%0.083%
8/15/2025 Tower Research Capital LLC TRC 13,206$274K0.0%+432.1%0.013%
8/15/2025 Corient Private Wealth LLC10,185$211K0.0%N/A0.010%
8/15/2025 State of Tennessee Department of Treasury46,429$962K0.0%+88.6%0.046%
8/15/2025 Captrust Financial Advisors17,896$371K0.0%+18.3%0.018%
8/15/2025 Teza Capital Management LLC12,613$261K0.2%-35.4%0.013%
8/15/2025 Smartleaf Asset Management LLC2,995$62K0.0%+33.2%0.003%
8/15/2025 Oxford Asset Management LLP20,896$433K0.2%N/A0.021%
8/15/2025 Man Group plc17,800$369K0.0%-2.6%0.018%
8/15/2025 HRT Financial LP100,457$2.08M0.0%N/A0.100%
8/15/2025 Engineers Gate Manager LP83,590$1.73M0.0%+11.9%0.083%
8/15/2025 Cubist Systematic Strategies LLC473,228$9.81M0.0%+15.7%0.472%
8/15/2025 BNP Paribas Financial Markets28,430$589K0.0%+66.8%0.028%
8/15/2025 Brevan Howard Capital Management LP42,453$880K0.0%+42.9%0.042%
8/15/2025 Balyasny Asset Management L.P.1,361,917$28.22M0.0%+916.6%1.359%
8/15/2025 Bank of America Corp DE540,191$11.19M0.0%-5.3%0.539%
8/15/2025 Ameriprise Financial Inc.220,320$4.57M0.0%-7.2%0.220%
8/15/2025 AQR Capital Management LLC280,175$5.81M0.0%+72.5%0.280%
8/14/2025 California State Teachers Retirement System93,342$1.93M0.0%+0.7%0.093%
8/14/2025 Raymond James Financial Inc.56,185$1.16M0.0%-19.7%0.056%
8/14/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.51,530$1.07M0.0%-14.3%0.051%
8/14/2025 The Manufacturers Life Insurance Company 50,974$1.06M0.0%-10.9%0.051%
8/14/2025 Sei Investments Co.459,733$9.53M0.0%+19.0%0.459%
8/14/2025 Integrated Investment Consultants LLC12,093$251K0.0%-38.5%0.012%
8/14/2025 Qube Research & Technologies Ltd812,325$16.83M0.0%+29.0%0.811%
8/14/2025 AXA S.A.15,796$327K0.0%N/A0.016%
8/14/2025 State Street Corp4,810,834$99.68M0.0%-0.8%4.801%
8/14/2025 WINTON GROUP Ltd31,312$649K0.0%-32.3%0.031%
8/14/2025 Cerity Partners LLC9,732$202K0.0%N/A0.010%
8/14/2025 Federated Hermes Inc.116,146$2.41M0.0%-19.4%0.116%
8/13/2025 Gabelli Funds LLC182,865$3.79M0.0%+5.1%0.182%
8/13/2025 Gamco Investors INC. ET AL350,440$7.26M0.1%-5.3%0.350%
8/13/2025 Brown Advisory Inc.7,345,637$152.20M0.2%+12.2%7.330%
8/13/2025 First Trust Advisors LP537,860$11.14M0.0%-0.4%0.537%
8/13/2025 EverSource Wealth Advisors LLC1,442$30K0.0%+335.6%0.001%
8/13/2025 Invesco Ltd.650,188$13.47M0.0%+8.0%0.649%
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8/13/2025 Greenhouse Funds LLLP2,491,803$51.63M2.1%+9.9%2.487%
8/13/2025 Isthmus Partners LLC89,822$1.86M0.2%+1.5%0.090%
8/13/2025 Fisher Asset Management LLC573,330$11.88M0.0%+8.0%0.572%
8/13/2025 Edgestream Partners L.P.403,247$8.36M0.2%+74.6%0.402%
8/13/2025 Panagora Asset Management Inc.205,773$4.26M0.0%+28.2%0.205%
8/13/2025 Schroder Investment Management Group448,394$9.29M0.0%+27.5%0.447%
8/13/2025 Loomis Sayles & Co. L P1,926,047$39.91M0.1%-6.9%1.922%
8/13/2025 Norges Bank71,663$1.49M0.0%N/A0.072%
8/13/2025 Hsbc Holdings PLC38,425$799K0.0%-22.2%0.038%
8/13/2025 Capital Fund Management S.A.11,610$241K0.0%N/A0.012%
8/13/2025 Carlson Capital L.P.27,700$574K0.2%N/A0.028%
8/13/2025 Russell Investments Group Ltd.115,515$2.39M0.0%-24.7%0.115%
8/12/2025 Inceptionr LLC23,333$483K0.1%N/A0.023%
8/12/2025 XTX Topco Ltd25,620$531K0.0%+46.2%0.026%
8/12/2025 Ameritas Investment Partners Inc.9,600$199K0.0%-9.2%0.010%
8/12/2025 Prudential Financial Inc.204,673$4.24M0.0%-1.8%0.204%
8/12/2025 American Century Companies Inc.3,370,206$69.83M0.0%+8.2%3.363%
8/12/2025 Rhumbline Advisers239,590$4.96M0.0%-7.3%0.239%
8/12/2025 Franklin Resources Inc.1,236,193$25.61M0.0%-7.0%1.234%
8/12/2025 Legal & General Group Plc277,047$5.74M0.0%-0.2%0.276%
8/12/2025 JPMorgan Chase & Co.392,321$8.13M0.0%-33.7%0.391%
8/12/2025 Magnetar Financial LLC17,181$356K0.0%N/A0.017%
8/12/2025 Swiss National Bank193,048$4M0.0%-1.4%0.193%
8/8/2025 Intech Investment Management LLC79,258$1.64M0.0%-15.3%0.079%
8/8/2025 Creative Planning16,255$337K0.0%-17.6%0.016%
8/8/2025 SG Americas Securities LLC10,599$220K0.0%+129.1%0.011%
8/8/2025 Commonwealth of Pennsylvania Public School Empls Retrmt SYS25,827$535K0.0%+6.8%0.026%
8/8/2025 Old West Investment Management LLC196,637$4.07M1.3%-25.3%0.196%
8/8/2025 Geode Capital Management LLC2,248,864$46.61M0.0%-3.3%2.244%
8/8/2025 PNC Financial Services Group Inc.9,939$206K0.0%-10.5%0.010%
8/8/2025 KBC Group NV3,726$77K0.0%-30.3%0.004%
8/7/2025 ProShare Advisors LLC21,105$437K0.0%-11.3%0.021%
8/7/2025 Profund Advisors LLC17,032$353K0.0%+3.4%0.017%
8/7/2025 CSM Advisors LLC14,027$291K0.0%N/A0.014%
8/7/2025 Campbell & CO Investment Adviser LLC20,012$415K0.0%N/A0.020%
8/7/2025 Mitsubishi UFJ Asset Management Co. Ltd.87,004$1.80M0.0%+31.4%0.087%
8/7/2025 Los Angeles Capital Management LLC35,036$726K0.0%-26.1%0.035%
8/6/2025 Fox Run Management L.L.C.29,657$614K0.1%-67.6%0.030%
8/6/2025 EFG Asset Management North America Corp.179,408$3.72M0.5%+16.9%0.179%
8/5/2025 Bank of New York Mellon Corp644,035$13.34M0.0%-1.3%0.643%
8/5/2025 Corton Capital Inc.13,675$283K0.3%N/A0.014%
8/5/2025 Bank of Montreal Can24,207$502K0.0%-3.9%0.024%
8/5/2025 Versor Investments LP15,327$318K0.1%-28.0%0.015%
8/1/2025 Jennison Associates LLC71,342$1.48M0.0%+24.2%0.071%
8/1/2025 Teacher Retirement System of Texas41,611$862K0.0%+36.4%0.042%
8/1/2025 Envestnet Asset Management Inc.273,680$5.67M0.0%-16.3%0.273%
7/31/2025 Oppenheimer Asset Management Inc.67,398$1.40M0.0%-3.9%0.067%
7/31/2025 State of New Jersey Common Pension Fund D99,181$2.06M0.0%+13.3%0.099%
7/31/2025 AlphaQuest LLC84,475$1.75M0.2%+29.0%0.084%
7/31/2025 Sumitomo Mitsui Trust Group Inc.27,135$562K0.0%-2.0%0.027%
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7/30/2025 Bleakley Financial Group LLC15,947$330K0.0%+54.3%0.016%
7/29/2025 Mutual of America Capital Management LLC12,922$268K0.0%-12.2%0.013%
7/28/2025 New York State Teachers Retirement System166,252$3.45M0.0%-3.4%0.165%
7/28/2025 Boston Trust Walden Corp526,125$10.90M0.1%N/A0.523%
7/25/2025 CWM LLC13,680$283K0.0%+276.4%0.014%
7/25/2025 Vanguard Personalized Indexing Management LLC14,265$296K0.0%+12.5%0.014%
7/25/2025 Concurrent Investment Advisors LLC141,837$2.94M0.1%+10.1%0.141%
7/24/2025 Inspire Investing LLC22,734$471K0.1%+23.9%0.023%
7/24/2025 IFP Advisors Inc2,985$62K0.0%+11,380.8%0.003%
7/17/2025 Fort Washington Investment Advisors Inc. OH1,134,244$23.50M0.1%+15.2%1.127%
(Data available from 1/1/2016 forward)

OII Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of OII shares?

During the previous two years, 286 institutional investors and hedge funds held shares of Oceaneering International. The most heavily invested institutionals were Vanguard Group Inc. ($269.61M), Brown Advisory Inc. ($152.20M), State Street Corp ($99.68M), Earnest Partners LLC ($91.98M), FMR LLC ($72.02M), American Century Companies Inc. ($69.83M), and Dimensional Fund Advisors LP ($69.50M).Learn more on Oceaneering International's institutional investors.

What percentage of Oceaneering International's stock is owned by institutional investors?

93.93% of Oceaneering International's stock is owned by institutional investors. Learn more on OII's institutional investor holdings.

Which institutional investors have been buying Oceaneering International's stock?

Of the 242 institutional investors that purchased Oceaneering International's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Brown Advisory Inc. ($3.16M), Hennessy Advisors Inc. ($1.84M), Congress Asset Management Co. ($1.79M), Loomis Sayles & Co. L P ($1.67M), Earnest Partners LLC ($1.55M), Balyasny Asset Management L.P. ($1.23M), and American Century Companies Inc. ($1.22M).

How much institutional buying is happening at Oceaneering International?

Institutional investors have bought a total of 17,916,859 shares in the last 24 months. This purchase volume represents approximately $421.50M in transactions.

Which of Oceaneering International's major shareholders have been selling company stock?

Of the 125 institutional investors that sold Oceaneering International's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: New York State Common Retirement Fund ($1.91M), Earnest Partners LLC ($1.72M), Bank of New York Mellon Corp ($1.55M), Janus Henderson Group PLC ($569.39K), Greenhouse Funds LLLP ($421.72K), Victory Capital Management Inc. ($362.14K), and Ranger Investment Management L.P. ($278.89K).

How much institutional selling is happening at Oceaneering International?

Institutional investors have sold a total of 10,067,215 shares in the last 24 months. This volume of shares sold represents approximately $232.96M in transactions.



This page (NYSE:OII) was last updated on 8/23/2025 by MarketBeat.com Staff
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