OIS Oil States International Inc.
Oil States International Inc. (OIS) Institutional Ownership
What the institutions did with OIS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 6.8M | 12.3% |
| First Eagle Investment Management, LLC | 4.0M | 7.2% |
| DIMENSIONAL FUND ADVISORS LP | 3.0M | 5.4% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.4M | 4.4% |
| AMERICAN CENTURY COMPANIES INC | 2.2M | 4.0% |
| ACADIAN ASSET MANAGEMENT LLC | 2.0M | 3.7% |
| D. E. Shaw & Co., Inc. | 2.0M | 3.6% |
| STATE STREET CORP | 2.0M | 3.6% |
| AQR CAPITAL MANAGEMENT LLC | 1.7M | 3.1% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.6M | 2.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.4M | 2.6% |
| TWO SIGMA INVESTMENTS, LP | 1.4M | 2.6% |
| KENNEDY CAPITAL MANAGEMENT LLC | 1.3M | 2.3% |
| MORGAN STANLEY | 1.2M | 2.2% |
| Qube Research & Technologies Ltd | 1.1M | 2.0% |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 1.1M | 2.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.1M | 2.0% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 840.2K | 1.5% |
| ALGERT GLOBAL LLC | 814.0K | 1.5% |
| MILLENNIUM MANAGEMENT LLC | 667.8K | 1.2% |
| FEDERATED HERMES, INC. | 651.7K | 1.2% |
| PANAGORA ASSET MANAGEMENT INC | 650.3K | 1.2% |
| UBS Group AG | 646.0K | 1.2% |
| Trexquant Investment LP | 602.9K | 1.1% |
| FMR LLC | 558.5K | 1.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| First Eagle Investment Management, LLC | Increased | 2.0M | 4.0M | +2.0M |
| Driehaus Capital Management LLC | Sold Out | 1.3M | 0 | -1.3M |
| Qube Research & Technologies Ltd | Increased | 198.5K | 1.1M | +923.9K |
| ALGERT GLOBAL LLC | Increased | 14.2K | 814.0K | +799.8K |
| MARSHALL WACE, LLP | Reduced | 932.8K | 241.6K | -691.1K |
| JPMORGAN CHASE & CO | Reduced | 821.9K | 174.2K | -647.7K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 3.5M | 3.0M | -515.7K |
| BlackRock, Inc. | Increased | 6.3M | 6.8M | +508.7K |
| JANE STREET GROUP, LLC | Sold Out | 454.2K | 0 | -454.2K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | 721.4K | 279.0K | -442.4K |
| TWO SIGMA INVESTMENTS, LP | Increased | 1.1M | 1.4M | +371.5K |
| Squarepoint Ops LLC | Increased | 30.1K | 399.7K | +369.6K |
| AMERICAN CENTURY COMPANIES INC | Increased | 1.8M | 2.2M | +364.9K |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | 2.4M | 2.0M | -310.1K |
| SEI INVESTMENTS CO | Reduced | 441.7K | 143.2K | -298.5K |
| FMR LLC | Increased | 266.6K | 558.5K | +291.9K |
| STATE STREET CORP | Increased | 1.7M | 2.0M | +247.4K |
| Pacer Advisors, Inc. | Sold Out | 243.9K | 0 | -243.9K |
| FEDERATED HERMES, INC. | Increased | 414.1K | 651.7K | +237.6K |
| KENNEDY CAPITAL MANAGEMENT LLC | Increased | 1.1M | 1.3M | +212.7K |
| UBS Group AG | Reduced | 853.5K | 646.0K | -207.5K |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | Reduced | 222.8K | 34.8K | -188.0K |
| HRT FINANCIAL LP | Reduced | 244.5K | 83.6K | -160.9K |
| GOLDMAN SACHS GROUP INC | Reduced | 702.1K | 542.4K | -159.6K |
| Informed Momentum Co LLC | Sold Out | 153.9K | 0 | -153.9K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.