OCEANEERING INTERNATIONAL INC - Common Stock (OII)

CUSIP: 675232102

Q1 2026 13F Holders as of 31 Mar 2026

Type / Class
Equity / Common Stock
Shares outstanding
99,423,631
Total 13F shares
25,787,428
Share change
-989,998
Total reported value
$914,110,698
Price per share
$35.47
Number of holders
156
Value change
-$33,673,743
Number of buys
72
Number of sells
61

Quarterly Holders Quick Answers

What is CUSIP 675232102?
CUSIP 675232102 identifies OII - OCEANEERING INTERNATIONAL INC - Common Stock in SEC institutional holdings data.

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Top shareholders of OII - OCEANEERING INTERNATIONAL INC - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Holder Source Role / Reporting Ownership % Shares Holdings Value 12M Net Δ As of Details
BlackRock, Inc.
13F 13D/G
Company
14%
from 13D/G
16,003,350
$384,560,495 31 Dec 2025
VANGUARD GROUP INC
13F
Company
12%
12,371,147
$297,278,664 31 Dec 2025
13F
VANGUARD PORTFOLIO MANAGEMENT LLC
13D/G
Vanguard Portfolio Management
7.7%
7,660,752
$271,726,873 $0 31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC
13D/G
Vanguard Capital Management
5.3%
5,229,683
$185,496,856 $0 31 Mar 2026
BROWN ADVISORY INC
13F 13D/G
Company
6.6%
from 13D/G
7,426,981
$178,470,371 31 Dec 2025
STATE STREET CORP
13F 13D/G
Company · STATE STREET CORPORATION
4.9%
from 13D/G
4,647,252
$111,673,466 31 Dec 2025
Morgan Stanley Institutional Investment Advisors LLC
13F
Company
4%
3,947,022
$94,846,948 31 Dec 2025
13F
EARNEST PARTNERS LLC
13F 13D/G
Company
4.2%
from 13D/G
3,791,599
$91,112,124 31 Dec 2025
AMERICAN CENTURY COMPANIES INC
13F
Company
3.6%
3,608,090
$86,702,403 31 Dec 2025
13F
DIMENSIONAL FUND ADVISORS LP
13F
Company
3.5%
3,477,068
$83,556,317 31 Dec 2025
13F
Neuberger Berman Group LLC
13F
Company
3.4%
3,335,121
$80,142,958 31 Dec 2025
13F
Greenhouse Funds LLLP
13F
Company
2.5%
2,468,260
$59,312,288 31 Dec 2025
13F
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
2.3%
2,304,738
$55,396,372 31 Dec 2025
13F
LOOMIS SAYLES & CO L P
13F
Company
1.8%
1,831,434
$44,009,359 31 Dec 2025
13F
VAN ECK ASSOCIATES CORP
13F
Company
1.5%
1,500,057
$36,047,000 31 Dec 2025
13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
Company
1.5%
1,442,874
$34,672,262 31 Dec 2025
13F
GOLDMAN SACHS GROUP INC
13F
Company
1.3%
1,273,669
$30,606,266 31 Dec 2025
13F
ROYAL BANK OF CANADA
13F
Company
1.2%
1,221,789
$29,360,000 31 Dec 2025
13F
NORTHERN TRUST CORP
13F
Company
1.2%
1,216,859
$29,241,121 31 Dec 2025
13F
Qube Research & Technologies Ltd
13F
Company
1.2%
1,165,936
$28,017,442 31 Dec 2025
13F
MORGAN STANLEY
13F
Company
1%
1,041,053
$25,016,523 31 Dec 2025
13F
Roderick A. Larson
3/4/5
President and CEO, Director
mixed-class rows
819,054
mixed-class rows
$21,092,739 24 Feb 2026
FORT WASHINGTON INVESTMENT ADVISORS INC /OH/
13F
Company
0.86%
856,644
$20,585,155 31 Dec 2025
13F
Ranger Investment Management, L.P.
13F
Company
0.81%
802,635
$19,287,319 31 Dec 2025
13F
Fisher Asset Management, LLC
13F
Company
0.8%
793,098
$19,058,144 31 Dec 2025
13F
Bank of New York Mellon Corp
13F
Company
0.77%
770,246
$18,509,001 31 Dec 2025
13F
Nuveen, LLC
13F
Company
0.7%
700,281
$16,827,753 31 Dec 2025
13F
ALGERT GLOBAL LLC
13F
Company
0.7%
699,646
$16,812,000 31 Dec 2025
13F
Point72 Asset Management, L.P.
13F
Company
0.7%
699,212
$16,802,064 31 Dec 2025
13F
BANK OF AMERICA CORP /DE/
13F
Company
0.63%
627,934
$15,089,254 31 Dec 2025
13F
Invesco Ltd.
13F
Company
0.6%
597,363
$14,354,633 31 Dec 2025
13F
PRINCIPAL FINANCIAL GROUP INC
13F
Company
0.58%
576,822
$13,861,033 31 Dec 2025
13F
Goehring & Rozencwajg Associates, LLC
13F
Company
0.57%
568,734
$13,666,678 31 Dec 2025
13F
FIRST TRUST ADVISORS LP
13F
Company
0.57%
562,486
$13,516,538 31 Dec 2025
13F
Old West Investment Management, LLC
13F
Company
0.55%
543,271
$13,054,802 31 Dec 2025
13F
TUDOR INVESTMENT CORP ET AL
13F
Company
0.54%
539,676
$12,968,414 31 Dec 2025
13F
Boston Trust Walden Corp
13F
Company
0.54%
532,179
$12,788,261 31 Dec 2025
13F
JPMORGAN CHASE & CO
13F
Company
0.51%
507,883
$12,204,428 31 Dec 2025
13F
SCHRODER INVESTMENT MANAGEMENT GROUP
13F
Company
0.5%
501,914
$12,201,529 31 Dec 2025
13F
UBS Group AG
13F
Company
0.46%
458,211
$11,010,811 31 Dec 2025
13F
Aristotle Capital Boston, LLC
13F
Company
0.45%
450,306
$10,820,866 31 Dec 2025
13F
FRANKLIN RESOURCES INC
13F
Company
0.45%
446,204
$10,722,283 31 Dec 2025
13F
SEI INVESTMENTS CO
13F
Company
0.42%
418,786
$10,063,422 31 Dec 2025
13F
BARCLAYS PLC
13F
Company
0.42%
416,792
$10,015,511 31 Dec 2025
13F
PANAGORA ASSET MANAGEMENT INC
13F
Company
0.39%
383,966
$9,226,703 31 Dec 2025
13F
Sagefield Capital LP
13F
Company
0.38%
380,070
$9,133,082 31 Dec 2025
13F
AGF MANAGEMENT LTD
13F
Company
0.38%
374,718
$9,004,474 31 Dec 2025
13F
AQR CAPITAL MANAGEMENT LLC
13F
Company
0.37%
372,749
$8,957,159 31 Dec 2025
13F
KEATING INVESTMENT COUNSELORS INC
13F
Company
0.36%
354,356
$8,515,175 31 Dec 2025
13F
PUBLIC SECTOR PENSION INVESTMENT BOARD
13F
Company
0.35%
345,270
$8,296,838 31 Dec 2025
13F

Institutional Holders of OCEANEERING INTERNATIONAL INC - Common Stock (OII) as of Q1 2026

As of 31 Mar 2026, OCEANEERING INTERNATIONAL INC - Common Stock (OII) was held by 156 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 25,787,428 shares. The largest 10 holders included VANGUARD PORTFOLIO MANAGEMENT LLC, VANGUARD CAPITAL MANAGEMENT LLC, DIMENSIONAL FUND ADVISORS LP, Fisher Asset Management, LLC, Bank of New York Mellon Corp, Goehring & Rozencwajg Associates, LLC, VANGUARD FIDUCIARY TRUST CO, PRINCIPAL FINANCIAL GROUP INC, FORT WASHINGTON INVESTMENT ADVISORS INC /OH/, and Boston Trust Walden Corp. This page lists 156 institutional shareholders reporting positions in this security for the Q1 2026 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders
311
Q1 2026 holders
156
Holder diff
-155
Investor Q4 2025 Shares Q1 2026 Shares Share Diff Share Chg % Q4 2025 Value $ Q1 2026 Value $ Value Diff $ Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
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