NYSE: OII
Oceaneering International Inc Stock Ownership - Who owns Oceaneering International?

Insider buying vs selling

Have Oceaneering International Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Jennifer Fremont SimonsSVP CLO and Secretary2026-01-05843$26.85
$22.63kSell
Jennifer Fremont SimonsSVP CLO and Secretary2026-01-0528,312$26.33
$745.45kSell
Jennifer Fremont SimonsSVP CLO and Secretary2026-01-0219,578$24.03
$470.46kSell
Paul B. Murphy Jr.Director2025-09-0210,000$24.25
$242.50kSell
Alan R. CurtisSVP and CFO2025-08-2714,840$24.36
$361.47kSell
Karen H. BeachyDirector2025-05-225,300$18.94
$100.38kSell
Christopher J. DyerSVP OPGroup2025-02-251,160$22.09
$25.62kSell
Leonardo P. GranatoSVP IMDS2025-02-25522$22.09
$11.53kSell
Holly KriendlerSVP Chief H.R. Officer2025-02-254,202$22.09
$92.82kSell
Roderick A. LarsonPresident and CEO2025-02-2541,046$22.09
$906.71kSell

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Net Insider Buy/Sell (L12M) Ownership

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OII Shareholders

What type of owners hold Oceaneering International Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc16.10%16,003,350$556.76MInstitution
Vanguard Group Inc12.45%12,371,147$430.39MInstitution
Brown Advisory Inc7.47%7,426,981$258.38MInstitution
State Street Corp4.68%4,647,252$161.68MInstitution
Morgan Stanley Institutional Investment Advisors LLC3.97%3,947,022$137.32MInstitution
Earnest Partners LLC3.81%3,791,599$131.91MInstitution
American Century Companies Inc3.63%3,608,090$125.53MInstitution
Dimensional Fund Advisors LP3.50%3,477,068$120.97MInstitution
Neuberger Berman Group LLC3.36%3,335,121$116.03MInstitution
Greenhouse Funds LLLP2.48%2,468,260$85.87MInstitution

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OII vs Oil & Gas Equipment & Service Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
OII96.27%3.73%Net SellingNet Selling
SEI56.22%43.78%Net SellingNet Selling
TDW84.29%15.71%Net BuyingNet Selling
WBI14.01%85.99%Net BuyingNet Buying
USAC25.59%74.41%Net SellingNet Selling

Oceaneering International Stock Ownership FAQ

Who owns Oceaneering International?

Oceaneering International (NYSE: OII) is owned by 100.71% institutional shareholders, 3.90% Oceaneering International insiders, and 0.00% retail investors. Blackrock Inc is the largest individual Oceaneering International shareholder, owning 16.00M shares representing 16.10% of the company. Blackrock Inc's Oceaneering International shares are currently valued at $556.76M.

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