Oceaneering International Inc (OII) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

101,057,000Shares Outstanding
100,143,743Shares held by institutions
$4,802,893,823Value of institutional holdings
99.10%Institutional ownership %
4.14%Shares Changed QoQ
308No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Oceaneering International Inc (NYSE:OII) is held by 308 institutional investors per 13F filings through December 2025.

359 Institutional Holders

100,143,743 Total Shares Held
Download Data
Owner Name Date Shares Held Change (QoQ) Change (%) Value (USD)
BlackRock, Inc. 31 Mar, 2026 16,348,842 345,492 2.16% $579,893,415.00
VANGUARD PORTFOLIO MANAGEMENT LLC 31 Mar, 2026 7,578,921 7,578,921 0.00% $268,824,328.00
BROWN ADVISORY INC 31 Mar, 2026 5,788,601 -1,638,380 -22.06% $205,321,688.00
State Street Corp 31 Mar, 2026 5,034,196 386,944 8.33% $178,562,932.00
VANGUARD CAPITAL MANAGEMENT LLC 31 Mar, 2026 4,478,763 4,478,763 0.00% $158,861,724.00
AMERICAN CENTURY COMPANIES INC 31 Mar, 2026 3,766,674 158,584 4.40% $133,603,927.00
EARNEST PARTNERS LLC 31 Mar, 2026 3,684,313 -107,286 -2.83% $130,682,582.00
DIMENSIONAL FUND ADVISORS LP 31 Mar, 2026 3,461,749 -15,319 -0.44% $122,780,112.00
Morgan Stanley Institutional Investment Advisors LLC 31 Mar, 2026 3,453,005 -494,017 -12.52% $122,478,102.00
Neuberger Berman Group LLC 31 Mar, 2026 3,218,259 -116,862 -3.50% $114,151,647.00
GEODE CAPITAL MANAGEMENT, LLC 31 Mar, 2026 2,376,461 71,723 3.11% $84,308,259.00
VAN ECK ASSOCIATES CORP 31 Mar, 2026 2,061,487 561,430 37.43% $73,121.00
Greenhouse Funds LLLP 31 Mar, 2026 2,032,489 -435,771 -17.65% $72,092,385.00
LOOMIS SAYLES & CO L P 31 Mar, 2026 1,700,289 -131,145 -7.16% $60,309,251.00
BARROW HANLEY MEWHINNEY & STRAUSS LLC 31 Mar, 2026 1,420,954 1,420,954 0.00% $50,401,238.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 31 Mar, 2026 1,383,124 -59,750 -4.14% $49,059,408.00
PRICE T ROWE ASSOCIATES INC /MD/ 31 Mar, 2026 1,295,245 1,295,245 0.00% $45,943.00
Northern Trust Corp 31 Mar, 2026 1,267,928 51,069 4.20% $44,973,405.00
Royal Bank Of Canada 31 Mar, 2026 1,048,210 -173,579 -14.21% $37,180,000.00
Morgan Stanley 31 Mar, 2026 1,040,333 -720 -0.07% $36,900,630.00