OCEANEERING INTERNATIONAL INC OII
CIK 0000073756 · CUSIP 675232102
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $326.49M 15,757,230 shares | 0.01% | -879.13K(-5.3%)Reduced | SEC filing ↗ Aug 12, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $256.75M 12,391,524 shares | 0.00% | +29.98K(+0.2%)Added | SEC filing ↗ Aug 11, 2025 | ▾ |
| 03 | BROWN ADVISORY INC CIK 1345929 · View history | $152.20M 7,345,637 shares | 0.20% | +799.72K(+12.2%)Added | SEC filing ↗ Aug 13, 2025 | ▾ |
| 04 | STATE STREET CORP CIK 93751 · View history | $99.68M 4,810,834 shares | 0.00% | -38.71K(-0.8%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 05 | EARNEST PARTNERS LLC CIK 1102578 · View history | $87.43M 4,219,384 shares | 0.39% | +1.99K(0.0%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 06 | NEUBERGER BERMAN GROUP LLC CIK 1465109 · Amended · View history | $75.03M 3,621,247 shares | 0.06% | -240.16K(-6.2%)Reduced | SEC filing ↗ Aug 25, 2025 | ▾ |
| 07 | AMERICAN CENTURY COMPANIES INC CIK 748054 · View history | $69.83M 3,370,206 shares | 0.04% | +256.63K(+8.2%)Added | SEC filing ↗ Aug 12, 2025 | ▾ |
| 08 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $66.05M 3,187,618 shares | 0.02% | +411.10K(+14.8%)Added | SEC filing ↗ Aug 12, 2025 | ▾ |
| 09 | Greenhouse Funds LLLP CIK 1626220 · View history | $51.63M 2,491,803 shares | 2.16% | +223.72K(+9.9%)Added | SEC filing ↗ Aug 13, 2025 | ▾ |
| 10 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $46.61M 2,248,864 shares | 0.00% | -77.59K(-3.3%)Reduced | SEC filing ↗ Aug 8, 2025 | ▾ |
| 11 | LOOMIS SAYLES & CO L P CIK 312348 · View history | $39.91M 1,926,047 shares | 0.05% | -142.66K(-6.9%)Reduced | SEC filing ↗ Aug 13, 2025 | ▾ |
| 12 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $28.36M 1,368,598 shares | 0.00% | +37.30K(+2.8%)Added | SEC filing ↗ Aug 12, 2025 | ▾ |
| 13 | Balyasny Asset Management L.P. CIK 1218710 · View history | $28.22M 1,361,917 shares | 0.06% | +1.23M(+916.6%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 14 | ROYAL BANK OF CANADA CIK 1000275 · Amended · View history | $28.19M 1,360,656 shares | 0.01% | +121.31K(+9.8%)Added | SEC filing ↗ Nov 21, 2025 | ▾ |
| 15 | VAN ECK ASSOCIATES CORP CIK 869178 · View history | $25.78M 1,244,136 shares | 0.03% | -239.17K(-16.1%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 16 | FRANKLIN RESOURCES INC CIK 38777 · View history | $25.61M 1,236,193 shares | 0.01% | -92.97K(-7.0%)Reduced | SEC filing ↗ Aug 12, 2025 | ▾ |
| 17 | NORTHERN TRUST CORP CIK 73124 · View history | $23.79M 1,148,091 shares | 0.00% | -55.80K(-4.6%)Reduced | SEC filing ↗ Aug 13, 2025 | ▾ |
| 18 | FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ CIK 1009016 · View history | $23.50M 1,134,244 shares | 0.14% | +149.70K(+15.2%)Added | SEC filing ↗ Jul 17, 2025 | ▾ |
| 19 | MORGAN STANLEY CIK 895421 · View history | $21.77M 1,050,683 shares | 0.00% | +10.40K(+1.0%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 20 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $19.24M 928,792 shares | 0.00% | +162.20K(+21.2%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
Showing 20 / 289 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 289 reporting institutions.
This page includes 20 of 289 reporting institutions. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 289 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"675232102","quarter":"2025Q2","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.