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Oceaneering International (OII) Institutional Ownership

Oceaneering International logo
$38.22 -0.18 (-0.46%)
As of 02:00 PM Eastern
This is a fair market value price provided by Massive. 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)
178
Total
Institutional Inflows
(last 12 months)
$428.66M
Number of
Institutional Sellers
(last 12 months)
126
Total
Institutional Outflows
(last 12 months)
$219.89M
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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
5/19/2026 Bank of America Corp DE261,231$9.27M0.0%-58.4%0.262%
5/19/2026 Edgestream Partners L.P.116,544$4.13M0.1%+306.2%0.117%
5/19/2026 Janus Henderson Group PLC217,255$7.71M0.0%+393.6%0.218%
5/19/2026 South Dakota Investment Council19,100$677K0.0%-46.8%0.019%
5/18/2026 Amundi10,526$373K0.0%N/A0.011%
5/18/2026 California State Teachers Retirement System119,621$4.24M0.0%+27.9%0.120%
5/18/2026 Royal Bank of Canada1,048,210$37.18M0.0%-14.2%1.051%
5/18/2026 Ranger Investment Management L.P.796,595$28.26M2.0%-0.8%0.799%
5/18/2026 Empowered Funds LLC132,627$4.70M0.0%+2.2%0.133%
5/16/2026 The Manufacturers Life Insurance Company 44,888$1.59M0.0%-3.0%0.045%
5/16/2026 Quantinno Capital Management LP18,588$659K0.0%+13.1%0.019%
5/15/2026 Cannell & Spears LLC164,478$5.67M0.1%N/A0.165%
5/14/2026 Renaissance Technologies LLC85,000$3.02M0.0%+202.5%0.085%
5/14/2026 Gabelli Funds LLC182,025$6.46M0.0%-2.6%0.182%
5/14/2026 Gamco Investors INC. ET AL338,298$12.00M0.1%-1.0%0.339%
5/14/2026 Caxton Associates LLP28,094$996K0.0%-19.0%0.028%
5/14/2026 Sei Investments Co.440,691$15.63M0.0%+5.2%0.442%
5/14/2026 Lido Advisors LLC13,738$487K0.0%+13.1%0.014%
5/14/2026 State of Wyoming15,099$536K0.1%+33.6%0.015%
5/13/2026 Cetera Investment Advisers6,378$226K0.0%N/A0.006%
5/13/2026 First Trust Advisors LP435,176$15.44M0.0%-22.6%0.436%
5/8/2026 PNC Financial Services Group Inc.9,721$345K0.0%-9.3%0.010%
5/8/2026 Amova Asset Management Americas Inc.27,018$959K0.0%+3.4%0.027%
5/7/2026 Dimensional Fund Advisors LP3,461,749$122.78M0.0%-0.4%3.471%
5/6/2026 Jennison Associates LLC60,012$2.13M0.0%-31.7%0.060%
5/6/2026 Gallacher Capital Management LLC10,231$363K0.1%-20.1%0.010%
5/5/2026 Bank of New York Mellon Corp755,271$26.79M0.0%-1.9%0.757%
5/5/2026 Illinois Municipal Retirement Fund51,096$1.81M0.0%+5.5%0.051%
5/5/2026 Goehring & Rozencwajg Associates LLC713,586$25.31M1.4%+25.5%0.715%
5/5/2026 Meridian Management Co.8,000$284K0.1%N/A0.008%
5/4/2026 Legacy Capital Group California Inc.14,627$519K0.2%-27.6%0.015%
5/4/2026 Bleakley Financial Group LLC19,614$696K0.0%+9.1%0.020%
5/4/2026 Principal Financial Group Inc.585,358$20.76M0.0%+1.5%0.587%
5/1/2026 Fifth Third Bancorp29,526$1.05M0.0%+6,782.5%0.030%
4/30/2026 Hsbc Holdings PLC8,669$311K0.0%-77.1%0.009%
4/30/2026 Kestra Advisory Services LLC48,437$1.72M0.0%-14.5%0.049%
4/30/2026 Granite Investment Partners LLC327,053$11.60M0.7%+37.2%0.328%
4/30/2026 Sumitomo Mitsui Trust Group Inc.27,018$958K0.0%+3.4%0.027%
4/30/2026 Isthmus Partners LLC96,364$3.42M0.4%-1.3%0.097%
4/28/2026 Abel Hall LLC6,581$233K0.0%N/A0.007%
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4/28/2026 Whittier Trust Co. of Nevada Inc.1,450$53K0.0%N/A0.001%
4/28/2026 K.J. Harrison & Partners Inc11,600$411K0.1%N/A0.012%
4/28/2026 QRG Capital Management Inc.21,263$754K0.0%N/A0.021%
4/27/2026 New York State Teachers Retirement System158,664$5.63M0.0%-3.4%0.159%
4/27/2026 Y Intercept Hong Kong Ltd62,516$2.22M0.0%-26.1%0.063%
4/25/2026 Strs Ohio22,200$787K0.0%+22,100.0%0.022%
4/25/2026 Boston Trust Walden Corp519,477$18.43M0.2%-2.4%0.521%
4/23/2026 Inspire Investing LLC18,806$667K0.1%-20.4%0.019%
4/22/2026 Janney Montgomery Scott LLC14,215$504K0.0%N/A0.014%
4/22/2026 Fort Washington Investment Advisors Inc. OH526,034$18.66M0.1%-38.6%0.527%
4/22/2026 Pictet Asset Management Holding SA16,345$580K0.0%+32.6%0.016%
4/22/2026 Sterling Capital Management LLC947$34K0.0%-22.5%0.001%
4/21/2026 Louisiana State Employees Retirement System44,200$1.57M0.0%N/A0.044%
4/17/2026 Andina Capital Management LLC14,766$524K0.5%N/A0.015%
4/16/2026 SG Americas Securities LLC8,763$311K0.0%-94.3%0.009%
4/16/2026 Diversified Trust Co20,781$737K0.0%+21.7%0.021%
3/20/2026 Hsbc Holdings PLC37,913$919K0.0%-35.5%0.038%
3/17/2026 Rockefeller Capital Management L.P.3,069$74K0.0%+297.0%0.003%
3/9/2026 Corient Private Wealth LLC12,600$303K0.0%+21.7%0.013%
2/19/2026 Invesco Ltd.597,363$14.36M0.0%-2.7%0.599%
2/19/2026 Corient Private Wealth LLC12,440$299K0.0%+20.1%0.012%
2/18/2026 State of Tennessee Department of Treasury52,577$1.26M0.0%+7.2%0.053%
2/18/2026 EP Wealth Advisors LLC26,225$630K0.0%N/A0.026%
2/18/2026 Mackenzie Financial Corp15,246$370K0.0%+9.1%0.015%
2/18/2026 NewEdge Advisors LLC19,560$470K0.0%+2.9%0.020%
2/18/2026 Empowered Funds LLC129,747$3.12M0.0%+3.6%0.130%
2/18/2026 XTX Topco Ltd33,629$808K0.0%N/A0.034%
2/18/2026 Tudor Investment Corp ET AL539,676$12.97M0.0%+9.7%0.541%
2/18/2026 Old West Investment Management LLC543,271$13.06M2.3%+128.2%0.544%
2/18/2026 Millennium Management LLC88,022$2.12M0.0%-59.0%0.088%
2/18/2026 Man Group plc19,346$465K0.0%+8.5%0.019%
2/18/2026 Manatuck Hill Partners LLC10,600$255K0.1%-73.5%0.011%
2/18/2026 Inspire Investing LLC23,622$568K0.1%+4.0%0.024%
2/18/2026 Gotham Asset Management LLC46,410$1.12M0.0%N/A0.047%
2/18/2026 Engineers Gate Manager LP88,549$2.13M0.0%-32.2%0.089%
2/18/2026 Aristotle Capital Boston LLC450,306$10.82M0.6%-46.6%0.451%
2/18/2026 Balyasny Asset Management L.P.10,122$243K0.0%-95.3%0.010%
2/18/2026 Bridgeway Capital Management LLC93,600$2.25M0.0%-5.0%0.094%
2/17/2026 Guggenheim Capital LLC9,936$239K0.0%-9.8%0.010%
2/17/2026 Schonfeld Strategic Advisors LLC35,082$843K0.0%-65.7%0.035%
2/17/2026 AQR Capital Management LLC372,749$8.96M0.0%+23.1%0.374%
2/17/2026 EFG International AG152,292$3.66M0.1%N/A0.153%
2/17/2026 Sagefield Capital LP380,070$9.13M0.8%-25.4%0.381%
2/17/2026 Trexquant Investment LP112,759$2.71M0.0%+276.4%0.113%
2/17/2026 Price T Rowe Associates Inc. MD101,308$2.44M0.0%+8.9%0.102%
2/17/2026 Tannin Capital LLC9,964$239K0.2%N/A0.010%
2/17/2026 Osaic Holdings Inc.27,404$659K0.0%-5.8%0.027%
2/17/2026 Russell Investments Group Ltd.268,176$6.44M0.0%+4.7%0.269%
2/17/2026 State of Wisconsin Investment Board261,453$6.28M0.0%+7.8%0.262%
2/17/2026 Captrust Financial Advisors14,436$347K0.0%-33.7%0.014%
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2/17/2026 ExodusPoint Capital Management LP34,827$837K0.0%-78.2%0.035%
2/17/2026 Royal Bank of Canada1,221,789$29.36M0.0%-5.2%1.224%
2/17/2026 Aster Capital Management DIFC Ltd3,325$80K0.0%N/A0.003%
2/16/2026 Squarepoint Ops LLC106,916$2.57M0.0%N/A0.107%
2/16/2026 Verition Fund Management LLC9,865$237K0.0%-23.1%0.010%
2/16/2026 Panagora Asset Management Inc.383,966$9.23M0.0%+20.2%0.385%
2/16/2026 Mariner LLC31,280$752K0.0%+31.6%0.031%
2/16/2026 Dockside LLC58,772$1.41M0.4%N/A0.059%
2/16/2026 Arax Advisory Partners11,700$281K0.0%-20.1%0.012%
2/16/2026 Barclays PLC416,792$10.02M0.0%+7.9%0.418%


OII Institutional Ownership - Frequently Asked Questions

During the previous two years, 308 institutional investors and hedge funds held shares of Oceaneering International. The most heavily invested institutionals were Vanguard Group Inc. ($297.28M), Brown Advisory Inc. ($178.47M), Dimensional Fund Advisors LP ($122.78M), State Street Corp ($111.67M), Morgan Stanley Institutional Investment Advisors LLC ($94.85M), Earnest Partners LLC ($91.11M), and American Century Companies Inc. ($90.27M).Learn more on Oceaneering International's institutional investors.

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

Of the 259 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: Morgan Stanley Institutional Investment Advisors LLC ($3.95M), Brown Advisory Inc. ($3.16M), Congress Asset Management Co. ($1.79M), American Century Companies Inc. ($1.40M), Balyasny Asset Management L.P. ($1.23M), Earnest Partners LLC ($1.11M), and JPMorgan Chase & Co. ($1.00M).

Institutional investors have bought a total of 17,870,561 shares in the last 24 months. This purchase volume represents approximately $428.66M in transactions.

Of the 126 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: Franklin Resources Inc. ($882.96K), Fort Washington Investment Advisors Inc. OH ($775.76K), Millennium Management LLC ($644.35K), JPMorgan Chase & Co. ($455.78K), Earnest Partners LLC ($427.79K), Aristotle Capital Boston LLC ($420.26K), and Bank of America Corp DE ($396.98K).

Institutional investors have sold a total of 8,616,384 shares in the last 24 months. This volume of shares sold represents approximately $219.89M in transactions.



This page (NYSE:OII) was last updated on 5/21/2026 by MarketBeat.com Staff.
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