Oceaneering International Inc

OII

Exchange: NYSE
Industry: Oil & Gas Field Services, NEC
SEC CIK: 0000073756

SEC filings (opens in a new tab)

In the last 90 days, Oceaneering International Inc insiders filed 0 open-market purchases and 4 sales; 376 institutions reported holding it in 13F filings for Q2 2026, worth $4.22B in total; no superinvestor holds it.

Q1 2025 vs. Q4 2024

How the institutions holding Oceaneering International Inc changed between Q4 2024 and Q1 2025.

All holders in Q1 2025 All holders in Q4 2024

13F holders of OII: Q4 2024 compared with Q1 2025
Measure	Q4 2024	Of which not filed for Q1 2025	Q1 2025	Change
Holders	287	2	286	+1
Shares	100.5M	565.0K	96.1M	−3.84M (−3.8%)
Value	$2.62B	$14.7M	$2.10B	−$510.2M (−19.6%)

2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (38)

Institutions that held Oceaneering International Inc at the end of Q1 2025 but not at the end of Q4 2024.

Institutions new to OII in Q1 2025
Institution	Shares	Value	% of portfolio
Nuveen, LLC	549,898	$12.0M	0.00%
Edgestream Partners, L.P.	231,018	$5.04M	0.17%
Marshall Wace, LLP	177,983	$3.88M	0.01%
Citadel Advisors LLC	124,245	$2.71M	0.00%
Fox Run Management, L.L.C.	91,609	$2.00M	0.31%
Jacobs Levy Equity Management, Inc	91,217	$1.99M	0.01%
Dark Forest Capital Management LP	80,522	$1.76M	0.08%
Gsa Capital Partners LLP	30,356	$662.0K	0.06%
Brevan Howard Capital Management LP	29,699	$647.7K	0.02%
Harbor Capital Advisors, Inc.	25,044	$546.0K	0.02%
Nomura Holdings Inc	19,456	$424.3K	0.00%
Walleye Capital LLC	18,077	$394.3K	0.00%
Ieq Capital, LLC	17,842	$389.1K	0.00%
XTX Topco Ltd	17,523	$382.2K	0.02%
Jain Global LLC	16,196	$353.2K	0.01%
Numerai GP LLC	14,876	$324.4K	0.06%
Diversified Trust Co	13,726	$299.4K	0.01%
Bridgefront Capital, LLC	12,459	$271.7K	0.08%
Aigen Investment Management, LP	11,599	$253.0K	0.04%
Healthcare of Ontario Pension Plan Trust Fund	10,000	$218.1K	0.00%
Quantinno Capital Management LP	9,758	$212.8K	0.00%
Globeflex Capital L P	7,283	$158.8K	0.01%
Vestcor Inc	7,138	$156.0K	0.01%
SG Americas Securities, LLC	4,627	$101.0K	0.00%
Group One Trading, L.P.	3,895	$85.0K	0.00%
Nomura Asset Management Co Ltd	900	$19.6K	0.00%
Coldstream Capital Management Inc	494	$10.8K	0.00%
Aster Capital Management (DIFC) Ltd	486	$10.7K	0.00%
Optiver Holding B.V.	397	$8.66K	0.00%
Thompson Investment Management, Inc.	105	$2.29K	0.00%
Financial Network Wealth Advisors LLC	67	$1.46K	0.00%
Rialto Wealth Management, LLC	49	$1.07K	0.00%
Stephens Consulting, LLC	45	$982	0.00%
Bell Investment Advisors, Inc	36	$786	0.00%
Wealth Preservation Advisors, LLC	20	$436	0.00%
Harbour Investments, Inc.	6	$131	0.00%
HFM Investment Advisors, LLC	2	$44	0.00%
Bay Harbor Wealth Management, LLC	2	$43	0.00%

Sold out (37)

Institutions that held Oceaneering International Inc at the end of Q4 2024 and filed for Q1 2025 without it.

Institutions that sold out of OII in Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
Weiss Asset Management LP	83,885	$2.19M
Sheets Smith Investment Management	47,458	$1.24M
Manatuck Hill Partners, LLC	23,197	$605.0K
Sheets Smith Wealth Management	20,024	$522.2K
ExodusPoint Capital Management, LP	19,629	$512.0K
Brasada Capital Management, LP	19,000	$494.0K
Crestline Management, LP	16,915	$441.1K
Alps Advisors Inc	14,450	$376.9K
Toroso Investments, LLC	13,017	$339.5K
Cerity Partners LLC	11,064	$276.2K
Oxford Asset Management LLP	10,142	$264.5K
Savant Capital, LLC	9,824	$256.2K
First Hawaiian Bank	9,782	$255.1K
Schonfeld Strategic Advisors LLC	9,740	$254.0K
Inspire Advisors, LLC	8,848	$230.7K
National Asset Management, Inc.	8,099	$211.2K
Nebula Research & Development LLC	8,099	$211.2K
Meridian Management Co	8,017	$209.1K
Commonwealth Equity Services, LLC	7,916	$206.0K
Cornercap Investment Counsel Inc	7,751	$202.1K
Sherbrooke Park Advisers LLC	7,677	$200.2K
R Squared Ltd	1,550	$40.4K
Coppell Advisory Solutions LLC	630	$16.2K
GeoWealth Management, LLC	368	$9.60K
LGT Financial Advisors LLC	309	$8.06K
Eagle Bay Advisors LLC	220	$5.74K
Assetmark, Inc	147	$3.83K
Bogart Wealth, LLC	97	$2.53K
SRS Capital Advisors, Inc.	50	$1.30K
WealthCollab, LLC	47	$1.23K
Van Hulzen Asset Management, LLC	45	$1.17K
Proequities, Inc.	42	$1.11K
Concord Wealth Partners	30	$782
Transce3nd, LLC	11	$287
WealthTrak Capital Management LLC	5	$131
Cullen/Frost Bankers, Inc.	4	$104
Parkworth Wealth Management, Inc.	1	$26

Not filed for Q1 2025 yet (2)

Institutions that held Oceaneering International Inc at the end of Q4 2024 and haven't filed a 13F for Q1 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding OII in Q4 2024 that haven't filed for Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
Nuveen Asset Management, LLC	552,021	$14.4M
Chesapeake Capital Corp	13,017	$339.5K