Institutional shares held 96.9 Million
279K calls
151K puts
Total value of holdings $2.32B
$6.68M calls
$3.61M puts
Market Cap $2.4B
100,260,000 Shares Out.
Institutional ownership 96.65%
# of Institutions 328


Latest Institutional Activity in OII

Top Purchases

Q3 2025
Goldman Sachs Group Inc Shares Held: 1.43M ($34.1M)
Q3 2025
Brown Advisory Inc Shares Held: 7.7M ($184M)
Q3 2025
Tudor Investment Corp Et Al Shares Held: 492K ($11.8M)
Q3 2025
Algert Global LLC Shares Held: 650K ($15.6M)
Q3 2025
American Century Companies Inc Shares Held: 3.64M ($87.2M)

Top Sells

Q3 2025
Balyasny Asset Management LLC Shares Held: 213K ($5.1M)
Q3 2025
Franklin Resources Inc Shares Held: 703K ($16.8M)
Q3 2025
Millennium Management LLC Shares Held: 215K ($5.14M)
Q3 2025
State Street Corp Shares Held: 4.43M ($106M)
Q3 2025
Vanguard Group Inc Shares Held: 12.2M ($292M)

About OII

Oceaneering International, Inc. provides engineered services, products, and robotic solutions to the offshore energy, defense, aerospace, manufacturing, and entertainment industries worldwide. The company's Subsea Robotics segment provides remotely operated vehicles (ROVs) for drill support and vessel-based services, including subsea hardware installation, construction, pipeline inspection, survey and facilities inspection, maintenance, and repair. This segment also offers ROV tooling, and survey services, such as hydrographic survey and positioning services, as well as autonomous underwater vehicles for geoscience. As of December 31, 2021, this segment owned 250 work-class ROVs. Its Manufactured Products segment provides distribution and connection systems, including production control umbilicals and field development hardware, pipeline connection, and repair systems to the energy industry; and autonomous mobile robots and automated guided vehicle technology and entertainment systems to various industries. The company's Offshore Projects Group segment offers subsea installation and intervention, including riserless light well intervention services and inspection, and maintenance and repair services; installation and workover control systems, and ROV workover control systems; project management and engineering; and drill pipe riser services and systems, and wellhead load relief solutions. Its Integrity Management & Digital Solutions segment provides asset integrity management; software and analytical solutions for the bulk cargo maritime industry; and software, digital, and connectivity solutions for the energy industry. The company's Aerospace and Defense Technologies segment offers government services and products, including engineering and related manufacturing in defense and space exploration activities to U.S. government agencies and their prime contractors. Oceaneering International, Inc. was founded in 1964 and is headquartered in Houston, Texas.


Insider Transactions at OII

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
301K Shares
From 20 Insiders
Grant, award, or other acquisition 301K shares
Sell / Disposition
110K Shares
From 15 Insiders
Open market or private sale 30.1K shares
Payment of exercise price or tax liability 78.3K shares
Bona fide gift 2K shares

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