Oil States International Inc
Ownership
Ownership Structure
Who owns Oil States International Inc (OIS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 92.0% of the shares are freely tradable; institutional investors hold 92.0%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 11.30 | 6,818,282 | +8.1 | 06/30/2026 |
| Arnhold & S. Bleichroeder Advisers, LLC | 6.65 | 4,011,354 | +96.3 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 4.98 | 3,006,491 | -14.6 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.01 | 2,418,106 | +0.0 | 06/30/2026 |
| American Century Companies Inc | 3.67 | 2,213,177 | +19.7 | 06/30/2026 |
| Acadian Asset Management LLC | 3.39 | 2,042,288 | -13.2 | 06/30/2026 |
| D. E. Shaw & Co LP | 3.35 | 2,017,956 | -6.9 | 06/30/2026 |
| State Street Corp | 3.28 | 1,980,909 | +14.3 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Avantis US Small Cap Value ETF | 3.36 | 2,024,874 | +0.1 | 09/30/2026 |
| First Eagle Small Cap Opportunity I | 3.32 | 2,005,598 | +0.0 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Potter Robert L | Director | 228,211 | 2,190,826 $ | Sep 30, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 30, 2026 | Potter Robert L | Director | Other | 1,572 | 7.95 | 12,497 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.