Institutional shares held 97.3 Million
36.8K calls
17.1K puts
Total value of holdings $2.36B
$894K calls
$415K puts
Market Cap $2.47B
100,260,000 Shares Out.
Institutional ownership 97.0%
# of Institutions 310


Latest Institutional Activity in OII

Top Purchases

Q2 2025
Balyasny Asset Management LLC Shares Held: 1.36M ($33.6M)
Q2 2025
Brown Advisory Inc Shares Held: 7.35M ($181M)
Q2 2025
Millennium Management LLC Shares Held: 732K ($18.1M)
Q2 2025
Boston Trust Walden Corp Shares Held: 526K ($13M)
Q2 2025
Dimensional Fund Advisors LP Shares Held: 3.19M ($78.7M)

Top Sells

Q2 2025
Ranger Investment Management, L.P. Shares Held: 614K ($15.2M)
Q2 2025
Neuberger Berman Group LLC Shares Held: 3.62M ($89.4M)
Q2 2025
Van Eck Associates Corp Shares Held: 1.24M ($30.7M)
Q2 2025
Janus Henderson Group PLC Shares Held: 44K ($1.09M)
Q2 2025
Victory Capital Management Inc Shares Held: 50.3K ($1.24M)

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
116K Shares
From 16 Insiders
Open market or private sale 35.4K shares
Payment of exercise price or tax liability 78.3K shares
Bona fide gift 2K shares

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