Oil States International, Inc
OIS- Exchange
- NYSE
- Industry
- Oil & Gas Field Machinery & Equipment
- SEC CIK
- 0001121484
No open-market purchases or sales by Oil States International, Inc insiders were filed in the last 90 days; 200 institutions reported holding it in 13F filings for Q2 2026, worth $428.5M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Oil States International, Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 219
- +41 vs. Q4 2025
- Shares held
- 54.3M
- +7.82M (+16.8%) vs. Q4 2025
- Total value
- $631.3M
- +$316.8M (+100.7%) vs. Q4 2025
- New holders
- 60
- 76 more added
- Sold out
- 19
- 57 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting OIS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 200 | $428.5M |
| Q1 2026 | 219 | $631.3M |
| Q4 2025 | 182 | $345.5M |
| Q3 2025 | 159 | $321.9M |
| Q2 2025 | 152 | $277.5M |
| Q1 2025 | 157 | $262.4M |
| Q4 2024 | 150 | $248.4M |
| Q3 2024 | 154 | $227.2M |
| Q2 2024 | 149 | $234.2M |
| Q1 2024 | 173 | $347.7M |
| Q4 2023 | 181 | $403.4M |
| Q3 2023 | 175 | $479.0M |
| Q2 2023 | 173 | $428.5M |
| Q1 2023 | 171 | $477.2M |
| Q4 2022 | 158 | $433.0M |
| Q3 2022 | 164 | $221.7M |
| Q2 2022 | 164 | $309.1M |
| Q1 2022 | 165 | $400.9M |
| Q4 2021 | 145 | $268.3M |
| Q3 2021 | 147 | $344.8M |
| Q2 2021 | 150 | $433.4M |
| Q1 2021 | 146 | $305.7M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Oil States International, Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| UBS Group AG | 853,474 | $9.93M | 0.00% | +343,594+67.4% | Added |
| Marshall Wace, LLP | 932,772 | $10.9M | 0.01% | +932,772 | New |
| Hotchkis & Wiley Capital Management LLC | 1,001,051 | $11.7M | 0.04% | −702,850−41.2% | Reduced |
| Two Sigma Investments, LP | 1,073,304 | $12.5M | 0.01% | +475,587+79.6% | Added |
| Kennedy Capital Management, Inc. | 1,078,399 | $12.6M | 0.27% | −374,135−25.8% | Reduced |
| Charles Schwab Investment Management Inc | 1,131,609 | $13.2M | 0.00% | −15,394−1.3% | Reduced |
| Driehaus Capital Management LLC | 1,328,078 | $15.5M | 0.11% | +1,328,078 | New |
| Morgan Stanley | 1,350,160 | $15.7M | 0.00% | +368,321+37.5% | Added |
| Geode Capital Management, LLC | 1,357,790 | $15.8M | 0.00% | +35,163+2.7% | Added |
| Vanguard Portfolio Management LLC | 1,636,824 | $19.1M | 0.00% | +1,636,824 | New |
| State Street Corp | 1,733,499 | $20.2M | 0.00% | +283,812+19.6% | Added |
| AQR Capital Management LLC | 1,824,715 | $21.2M | 0.01% | +44,171+2.5% | Added |
| American Century Companies Inc | 1,848,308 | $21.5M | 0.01% | +233,176+14.4% | Added |
| First Eagle Investment Management, LLC | 2,043,709 | $23.8M | 0.04% | −537,965−20.8% | Reduced |
| D. E. Shaw & Co., Inc. | 2,167,272 | $25.2M | 0.02% | −481,836−18.2% | Reduced |
| Acadian Asset Management LLC | 2,352,385 | $27.4M | 0.04% | −86,237−3.5% | Reduced |
| Vanguard Capital Management LLC | 2,417,559 | $28.1M | 0.00% | +2,417,559 | New |
| Dimensional Fund Advisors LP | 3,522,143 | $41.0M | 0.01% | +89,456+2.6% | Added |
| BlackRock, Inc. | 6,309,631 | $73.4M | 0.00% | −348,182−5.2% | Reduced |
| Thomist Capital Management, LP | 0 | $0 | 0.00% | −288,084−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −203,355−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −89,197−100.0% | Sold out |
| Bailard, Inc. | 0 | $0 | 0.00% | −45,000−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −38,422−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −20,335−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −19,901−100.0% | Sold out |
| Keebeck Alpha, LP | 0 | $0 | 0.00% | −11,801−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −11,443−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −10,308−100.0% | Sold out |
| New York State Teachers Retirement System | 0 | $0 | 0.00% | −5,291−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −1,847−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −1,772−100.0% | Sold out |
| Investors Research Corp | 0 | $0 | 0.00% | −900−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −650−100.0% | Sold out |
| Advisor Group Holdings, Inc. | 0 | $0 | 0.00% | −250−100.0% | Sold out |
| Optima Capital LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| North Star Investment Management Corp. | 0 | $0 | 0.00% | −73−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −46−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Brandywine Global Investment Management, LLC | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |