Oil States InternationalOIS
13F holders, Q1 2026 (March 31)217holders +36
56new positions
18sold out
8famous investors
$11.63avg. 13F price*
At the end of Q1 2026, 217 institutions reported holding Oil States International Inc. (OIS) in their 13F filings, up 36 from Q4 2025. 56 opened new positions and 18 sold out. The largest holders were BlackRock, Inc. ($73.4M), Dimensional Fund Advisors LP ($41.0M) and Vanguard Capital Management LLC ($28.1M). 8 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Oil States International Inc.
- Filed as
- OIL STS INTL INC (Q1 2026)
- CUSIP
- 678026105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 56 | $52.7M |
| Exits | 18 | $3.7M |
All 13F filers, Q4 2025 → Q1 2026: 10,135,791 shares bought and 6,657,981 shares sold, net +3,477,810 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 217 holders
| BlackRock, Inc. | 0.00% | Reduce -5.2% | 6,309,631 | $73.4M |
| Dimensional Fund Advisors LP | 0.01% | Add +2.6% | 3,522,143 | $41.0M |
| Vanguard Capital Management LLC | 0.00% | — | 2,417,559 | $28.1M |
| Acadian Asset Management LLC | 0.04% | Reduce -3.5% | 2,352,385 | $27.4M |
| D. E. Shaw & Co. | 0.02% | Reduce -18.2% | 2,167,272 | $25.2M |
| First Eagle Investment Management, LLC | 0.04% | Reduce -20.8% | 2,043,709 | $23.8M |
| American Century Companies Inc. | 0.01% | Add +14.4% | 1,848,308 | $21.5M |
| AQR Capital Management | 0.01% | Add +2.5% | 1,824,715 | $21.2M |
| State Street Corp. | 0.00% | Add +19.6% | 1,733,499 | $20.2M |
| Vanguard Portfolio Management LLC | 0.00% | — | 1,636,824 | $19.1M |
| Geode Capital Management, LLC | 0.00% | Add +2.7% | 1,357,790 | $15.8M |
| Morgan Stanley | 0.00% | Add +37.5% | 1,350,160 | $15.7M |
| Driehaus Capital Management LLC | 0.11% | New | 1,328,078 | $15.5M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -1.3% | 1,131,609 | $13.2M |
| Kennedy Capital Management LLC | 0.27% | Reduce -25.8% | 1,078,399 | $12.6M |
| Two Sigma Investments, LP | 0.01% | Add +79.6% | 1,073,304 | $12.5M |
| Hotchkis & Wiley Capital Management LLC | 0.04% | Reduce -41.3% | 1,001,051 | $11.7M |
| Marshall Wace, LLP | 0.01% | New | 932,772 | $10.9M |
| UBS Group AG | 0.00% | Add +67.4% | 853,474 | $9.9M |
| Bridgeway Capital Management, LLC | 0.20% | Reduce -8.8% | 832,905 | $9.7M |
| JPMorgan Chase & Co. | 0.00% | Reduce -24.4% | 821,868 | $9.5M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +69.5% | 721,401 | $8.4M |
| Millennium Management | 0.01% | Add +5587.1% | 704,411 | $8.2M |
| Goldman Sachs Group Inc. | 0.00% | Add +44.4% | 702,085 | $8.2M |
| Trexquant Investment LP | 0.05% | Add +70.9% | 551,183 | $6.4M |
| Panagora Asset Management Inc. | 0.02% | Reduce -19.1% | 539,920 | $6.3M |
| Northern Trust Corp. | 0.00% | Add +4.8% | 461,591 | $5.4M |
| Ameriprise Financial Inc. | 0.00% | Reduce -27.7% | 456,119 | $5.3M |
| Jane Street Group, LLC | 0.01% | Add +213.0% | 454,245 | $5.3M |
| Sei Investments Co. | 0.00% | Add +197.6% | 441,725 | $5.1M |
| Federated Hermes, Inc. | 0.01% | Add +6.1% | 414,123 | $4.8M |
| Empowered Funds, LLC | 0.03% | New | 402,205 | $4.7M |
| Franklin Resources Inc. | 0.00% | Add +181.3% | 395,901 | $4.6M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 365,048 | $4.2M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Add +305.0% | 361,554 | $4.2M |
| Hara Capital LLC | 1.96% | Reduce -2.9% | 336,828 | $3.9M |
| Bank of New York Mellon Corp | 0.00% | Reduce -10.2% | 324,428 | $3.8M |
| Invesco Ltd. | 0.00% | Add +112.3% | 311,490 | $3.6M |
| Russell Investments Group, Ltd. | 0.00% | Add +5.7% | 309,464 | $3.6M |
| Deutsche Bank AG | 0.00% | Reduce -2.1% | 301,566 | $3.5M |
| Massachusetts Financial Services Co. | 0.00% | Reduce -21.8% | 299,371 | $3.5M |
| Gendell Jeffrey L | 0.05% | Reduce -80.9% | 298,317 | $3.5M |
| FMR LLC | 0.00% | Add +14.0% | 266,603 | $3.1M |
| HRT Financial LP | 0.01% | Add +1014.8% | 244,517 | $2.8M |
| Pacer Advisors, Inc. | 0.01% | New | 243,924 | $2.8M |
| State Board of Administration of Florida Retirement System | 0.00% | Reduce -41.8% | 222,793 | $2.6M |
| LSV Asset Management | 0.01% | Reduce -2.4% | 216,400 | $2.5M |
| Qube Research & Technologies Ltd | 0.00% | Reduce -27.9% | 198,511 | $2.3M |
| Fisher Asset Management | 0.00% | Reduce -6.0% | 198,305 | $2.3M |
| Raymond James Financial Inc. | 0.00% | Add +5.1% | 193,930 | $2.3M |
| State of Wisconsin Investment Board | 0.00% | Reduce -15.8% | 160,815 | $1.9M |
| Creative Planning | 0.00% | Add +49.8% | 157,809 | $1.8M |
| O'shaughnessy Asset Management, LLC | 0.01% | New | 157,731 | $1.8M |
| Los Angeles Capital Management LLC | 0.01% | Add +332.0% | 155,815 | $1.8M |
| Ieq Capital, LLC | 0.01% | Add +4.1% | 154,598 | $1.8M |
| Informed Momentum Co LLC | 0.21% | New | 153,896 | $1.8M |
| T. Rowe Price Associates Inc. | 0.00% | Add +11.6% | 129,982 | $1.5M |
| Campbell & CO Investment Adviser LLC | 0.09% | Reduce -21.1% | 129,947 | $1.5M |
| Vanguard Global Advisers, LLC | 0.00% | — | 129,727 | $1.5M |
| Nuveen, LLC | 0.00% | Reduce -39.0% | 126,152 | $1.5M |
| Prudential Financial Inc. | 0.00% | Reduce -70.9% | 115,896 | $1.3M |
| Y-Intercept (Hong Kong) Ltd | 0.02% | New | 104,723 | $1.2M |
| Susquehanna International Group, LLP | 0.00% | Add +219.1% | 99,890 | $1.2M |
| Assenagon Asset Management S.A. | 0.00% | No change | 99,684 | $1.2M |
| Rhumbline Advisers | 0.00% | Reduce -3.2% | 95,417 | $1.1M |
| Engineers Gate Manager LP | 0.01% | Add +519.9% | 93,777 | $1.1M |
| Bank of America Corp. | 0.00% | Reduce -30.7% | 92,836 | $1.1M |
| Jacobs Levy Equity Management, Inc. | 0.00% | Add +14.2% | 92,804 | $1.1M |
| Stifel Financial Corp. | 0.00% | Reduce -13.7% | 90,982 | $1.1M |
| Wedge Capital Management L L P | 0.02% | Reduce -36.6% | 90,526 | $1.1M |
| BNP Paribas Financial Markets | 0.00% | Add +341.5% | 87,951 | $1.0M |
| WINTON GROUP Ltd | 0.04% | Add +23.1% | 87,927 | $1.0M |
| Cwm, LLC | 0.00% | Add +15.1% | 87,926 | $1.0M |
| Mariner, LLC | 0.00% | Add +44.8% | 86,237 | $1.0M |
| Citigroup Inc. | 0.00% | Add +53.6% | 85,186 | $992K |
| Principal Financial Group Inc. | 0.00% | Reduce -28.2% | 85,105 | $991K |
| JB Capital Partners LP | 0.17% | No change | 85,000 | $989K |
| Martingale Asset Management L P | 0.02% | New | 76,328 | $888K |
| Counterpoint Mutual Funds LLC | 0.13% | New | 73,084 | $851K |
| Point72 Asset Management | 0.00% | New | 70,343 | $819K |
| Integrated Quantitative Investments LLC | 0.14% | New | 64,681 | $753K |
| Victory Capital Management Inc. | 0.00% | Reduce -13.5% | 64,113 | $746K |
| Barclays PLC | 0.00% | Reduce -66.6% | 62,995 | $733K |
| ExodusPoint Capital Management, LP | 0.01% | New | 62,017 | $722K |
| Cambria Investment Management, L.P. | 0.04% | New | 58,712 | $683K |
| Gotham Asset Management | 0.00% | New | 57,963 | $675K |
| Hillsdale Investment Management Inc. | 0.02% | Add +7.3% | 57,500 | $669K |
| Magnetar Financial LLC | 0.01% | New | 52,722 | $614K |
| STRS Ohio | 0.00% | Reduce -40.1% | 51,900 | $604K |
| State of Wyoming | 0.07% | Add +9.1% | 51,607 | $601K |
| Royal Bank of Canada | 0.00% | Reduce -37.0% | 49,536 | $576K |
| Harvest Investment Services, LLC | 0.10% | New | 48,320 | $562K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Add +19.6% | 49,998 | $560K |
| Cerity Partners LLC | 0.00% | Add +51.9% | 45,498 | $530K |
| Quantinno Capital Management LP | 0.00% | Add +15.7% | 45,227 | $526K |
| Inspire Investing, LLC | 0.03% | New | 44,309 | $516K |
| Citadel Advisors | 0.00% | Reduce -66.9% | 42,482 | $494K |
| Man Group plc | 0.00% | Reduce -37.5% | 41,311 | $481K |
| Mercer Global Advisors Inc. | 0.00% | Add +28.2% | 40,774 | $475K |
| Boothbay Fund Management, LLC | 0.01% | New | 36,532 | $425K |
"% of holder's portfolio" is OIS's weight in each manager's 13F, not the share of Oil States International Inc. the manager owns.