Oceaneering International Inc (OII) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

101,057,000Shares Outstanding
102,030,719Shares held by institutions
$3,790,441,211Value of institutional holdings
100.96%Institutional ownership %
17.70%Shares Changed QoQ
359No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Oceaneering International Inc (NYSE:OII) appears in 308 institutional 13F filings for the quarter ending December 2025.

618 Institutional Holders

102,030,719 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
BlackRock, Inc. 31 Mar, 2026 16,003,350 334,417 2.13% $384,560,495.00
VANGUARD GROUP INC 31 Mar, 2026 12,371,147 187,707 1.54% $297,278,664.00
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 7,426,981 -275,282 -3.57% $178,470,371.00
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
State Street Corp 31 Mar, 2026 4,647,252 215,366 4.86% $111,673,466.00
VANGUARD CAPITAL MANAGEMENT LLC 31 Mar, 2026 4,478,763 4,478,763 0.00% $158,861,724.00
Morgan Stanley Institutional Investment Advisors LLC 31 Mar, 2026 3,947,022 3,947,022 0.00% $94,846,948.00
EARNEST PARTNERS LLC 31 Mar, 2026 3,791,599 -225,099 -5.60% $91,112,124.00
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
AMERICAN CENTURY COMPANIES INC 31 Mar, 2026 3,608,090 -34,783 -0.95% $86,702,403.00
DIMENSIONAL FUND ADVISORS LP 31 Mar, 2026 3,477,068 191,117 5.82% $83,556,317.00
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 3,335,121 -204,437 -5.78% $80,142,958.00
Neuberger Berman Group LLC 31 Mar, 2026 3,218,259 -116,862 -3.50% $114,151,647.00
Goldman Sachs Group Inc 31 Mar, 2026 2,547,338 1,121,960 78.71% $61,212,532.00