Who Owns OII?

Oceaneering International, Inc. — Institutional Ownership & 13F Holdings

EnergyNYSE

$37.65

-0.34 (-0.89%)

Market Cap

$3.7B

Shares Outstanding

99,745,242

Institutional Holders

283

Total Inst. Value

$2.0B

% of Float Held

98.6%

QoQ Holder Change

+93

Institutional data as of Q1 2025

New Positions

55

Closed Positions

40

Increased

103

Decreased

99

Institutional Ownership Trend

Top 10 Institutional Holders(Q1 2025)

#FundValueShares
1BlackRock, Inc.$362.8M16,636,357
2VANGUARD GROUP INC$269.6M12,361,546
3BROWN ADVISORY INC$142.8M6,545,919
4STATE STREET CORP$105.8M4,849,545
5EARNEST PARTNERS LLC$92.0M4,217,394
6Neuberger Berman Group LLC$84.2M3,861,403
7AMERICAN CENTURY COMPANIES INC$67.9M3,113,578
8DIMENSIONAL FUND ADVISORS LP$60.6M2,776,516
9GEODE CAPITAL MANAGEMENT, LLC$50.8M2,326,457
10Greenhouse Funds LLLP$49.5M2,268,079

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Frequently Asked Questions

How many institutional investors hold OII?

As of Q1 2025, 283 institutional investors report holding OII (Oceaneering International, Inc.) in their 13F filings.

What percentage of Oceaneering International, Inc. is owned by institutions?

Institutional investors hold approximately 98.6% of Oceaneering International, Inc.'s float as reported in SEC 13F filings.

Which hedge fund owns the most OII?

The largest institutional holder of OII is BlackRock, Inc. with $362.8M in shares.

Are institutions buying or selling OII?

This quarter, 55 institutions opened new positions in OII and 40 closed their positions.

What is 13F institutional ownership?

SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.

How often is institutional ownership data updated?

13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.