Oceaneering Ownership | Who Owns Oceaneering?
Oceaneering Ownership Summary
Oceaneering is owned by 94.92% institutional investors, 1.95% insiders, and 3.13% retail investors. Blackrock is the largest institutional shareholder, holding 15.65% of OII shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 5.97% of its assets in Oceaneering shares.
OII Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Oceaneering | 94.92% | 1.95% | 3.13% |
| Sector | Energy Stocks | 14085.81% | 13.99% | -13999.79% |
| Industry | Oil & Gas Equipment & Services Stocks | 47.70% | 12.52% | 39.79% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock | 15.81M | 15.65% | $374.10M |
| Blackrock funding, inc. /de | 15.67M | 15.58% | $388.28M |
| Vanguard group | 12.18M | 12.12% | $301.91M |
| Brown advisory | 7.70M | 7.66% | $190.86M |
| State street | 4.43M | 4.41% | $109.82M |
| Earnest partners | 4.02M | 3.99% | $99.53M |
| American century companies | 3.64M | 3.62% | $90.27M |
| Neuberger berman group | 3.54M | 3.52% | $87.71M |
| Dimensional fund advisors lp | 3.29M | 3.27% | $81.43M |
| Greenhouse funds lllp | 2.49M | 2.48% | $61.75M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Keating investment counselors | 357.97K | 2.53% | $8.87M |
| Greenhouse funds lllp | 2.49M | 2.26% | $61.75M |
| West tower group | 27.00K | 1.94% | $669.06K |
| Sagefield capital lp | 509.62K | 1.41% | $12.63M |
| Goehring & rozencwajg associates | 466.06K | 1.39% | $11.55M |
| Old west investment management | 238.10K | 1.35% | $5.90M |
| Aristotle capital boston | 843.79K | 1.08% | $20.91M |
| Sheets smith investment management | 47.46K | 1.05% | $1.24M |
| Ranger investment management | 595.97K | 1.03% | $14.77M |
| Sir capital management | 272.40K | 0.61% | $6.75M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Balyasny asset management | 1.36M | 0.04% | 1.23M |
| Goldman sachs group | 1.43M | 0.00% | 496.59K |
| Jpmorgan chase | 763.91K | 0.00% | 371.59K |
| Brown advisory | 7.70M | 0.25% | 356.63K |
| Tudor investment corp et al | 491.93K | 0.02% | 333.67K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Congress asset management co /ma | - | - | -1.79M |
| Sourcerock group | - | - | -1.29M |
| Hennessy advisors | - | - | -1.28M |
| Fil | - | - | -796.58K |
| Franklin resources | 702.75K | 0.00% | -533.45K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Sir capital management | 272.40K | 0.61% | 272.40K | $6.75M |
| Norges bank | 238.40K | 0.00% | 238.40K | $6.22M |
| Summittx capital | 226.80K | 0.23% | 226.80K | $5.62M |
| Axa investment managers | 130.22K | 0.01% | 130.22K | $3.23M |
| Bridgeway capital management | 98.51K | 0.05% | 98.51K | $2.44M |
Sold Out
| Holder | Change |
|---|---|
| Harbour investments | -6.00 |
| Newsquare capital | -9.00 |
| Global financial private client | -9.00 |
| Allspring global investments | -13.00 |
| Nelson, van denburg & campbell wealth management group | -20.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 291 | 0.34% | 95,452,859 | -0.45% | 94 | 1.04% | 147 | -8.70% | 99 | - |
| Jun 30, 2025 | 288 | -0.69% | 95,645,355 | -0.39% | 95 | 1.05% | 160 | 7.38% | 98 | -9.26% |
| Mar 31, 2025 | 287 | -1.37% | 95,995,193 | -4.49% | 95 | 0.96% | 148 | -8.07% | 108 | 17.39% |
| Dec 31, 2024 | 286 | 9.58% | 100,472,902 | -0.17% | 99 | 1.00% | 159 | 29.27% | 89 | -9.18% |
| Sep 30, 2024 | 260 | 8.79% | 100,639,707 | 0.57% | 99 | 1.01% | 122 | 1.67% | 98 | 24.05% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 5.98M | 5.97% | - |
| Vanguard Total Stock Mkt Idx Inv | 3.19M | 3.18% | -101.70K |
| Vanguard US Total Market Shares ETF | 3.18M | 3.15% | 3.78K |
| Avantis US Small Cap Value ETF | 2.93M | 2.92% | 6.12K |
| Vanguard Small Cap Index | 2.44M | 2.44% | -15.56K |
| Neuberger Berman Genesis Inv | 2.34M | 2.33% | -173.55K |
| iShares Russell 2000 ETF | 2.30M | 2.30% | - |
| Harbor Small Cap Value Instl | 1.67M | 1.66% | -85.06K |
| Vanguard Small Cap Growth Index Inv | 1.37M | 1.37% | -6.95K |
| Hennessy Cornerstone Mid Cap 30 Inv | 1.28M | 1.26% | 158.80K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Sep 02, 2025 | MURPHY PAUL B JR | - | Sell | $242.50K |
| Aug 27, 2025 | Curtis Alan R | SVP and CFO | Sell | $361.47K |
| May 22, 2025 | Beachy Karen H | - | Sell | $100.38K |
| Nov 07, 2024 | GRANATO LEONARDO P | SVP, IMDS | Sell | $56.24K |
| Sep 10, 2024 | Beachy Karen H | - | Sell | $75.70K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | - | 2 |
| 2025 Q2 | - | 1 |
| 2025 Q1 | - | - |
| 2024 Q4 | - | 1 |
| 2024 Q3 | - | 4 |
OII Ownership FAQ
Try Tickergate Pro Free
Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)
Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis
Discover trending investment themes
Find your next best investment
Research stocks using tools