OIL STATES INTERNATIONAL INC (OIS) Institutional Ownership Changes & 13F Activity
OIL STATES INTERNATIONAL INC (OIS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Qube Research & Technologies Ltd, Ameriprise Financial Inc, Two Sigma Investments, Lp, Squarepoint Ops Llc, and Sei Investments Co.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Sell | -25 | -0.2% | 15,448 | $123.74K | Q2 2026 | Sep 09, 2026 |
| Citadel Advisors Llc | Buy | +32,494 | +76.5% | 74,976 | $600.56K | Q2 2026 | Sep 02, 2026 |
| Corient Private Wealth Llc | Buy | +12,120 | — | 12,120 | $97.08K | Q2 2026 | Aug 27, 2026 |
| First Eagle U.S. Value | Sell | -38,032 | -1.9% | 2,005,677 | $16.07M | Q2 2026 | Aug 24, 2026 |
| California State Teachers Retirement System | Sell | -2,265 | -74.2% | 788 | $6.31K | Q2 2026 | Aug 24, 2026 |
| Assenagon Asset Management S.A. | Sell | -74,356 | -74.6% | 25,328 | $202.88K | Q2 2026 | Aug 21, 2026 |
| Mercer Global Advisors Inc | Sell | -1,878 | -4.6% | 38,896 | $311.56K | Q2 2026 | Aug 19, 2026 |
| Empowered Funds, Llc | Buy | +7,332 | +1.8% | 409,537 | $3.28M | Q2 2026 | Aug 17, 2026 |
| Public Employees Retirement System Of Ohio | Sell | -421 | -2.4% | 16,810 | $134.65K | Q2 2026 | Aug 17, 2026 |
| Qube Research & Technologies Ltd | Buy | +923,875 | +465.4% | 1,122,386 | $8.99M | Q2 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Buy | +459,434 | — | 459,434 | $3.68M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +371,472 | +34.6% | 1,444,776 | $11.57M | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Buy | +369,621 | +1228.6% | 399,706 | $3.20M | Q2 2026 | Aug 14, 2026 |
| Sei Investments Co | Sell | -298,518 | -67.6% | 143,207 | $1.15M | Q2 2026 | Aug 14, 2026 |
| Kennedy Capital Management Llc | Buy | +212,741 | +19.7% | 1,291,140 | $10.34M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +197,254 | — | 197,254 | $1.58M | Q2 2026 | Aug 14, 2026 |
| Hrt Financial Lp | Sell | -160,923 | -65.8% | 83,594 | $669.00K | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Sell | -159,643 | -22.7% | 542,442 | $4.34M | Q2 2026 | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | Sell | -149,316 | -6.9% | 2,017,956 | $16.16M | Q2 2026 | Aug 14, 2026 |
| Hotchkis & Wiley Capital Management Llc | Buy | +99,150 | +9.9% | 1,100,201 | $8.81M | Q2 2026 | Aug 14, 2026 |
| Cambria Investment Management, L.P. | Buy | +93,762 | +159.7% | 152,474 | $1.22M | Q2 2026 | Aug 14, 2026 |
| Aqr Capital Management Llc | Sell | -87,805 | -4.8% | 1,736,910 | $13.91M | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Sell | -75,118 | -75.2% | 24,772 | $198.42K | Q2 2026 | Aug 14, 2026 |
| Man Group Plc | Buy | +72,499 | +175.5% | 113,810 | $911.62K | Q2 2026 | Aug 14, 2026 |
| Boothbay Fund Management, Llc | Buy | +70,294 | +192.4% | 106,826 | $855.68K | Q2 2026 | Aug 14, 2026 |
| Aquatic Capital Management Llc | Buy | +69,563 | — | 69,563 | $557.20K | Q2 2026 | Aug 14, 2026 |
| Brevan Howard Capital Management Lp | Buy | +61,707 | +225.4% | 89,088 | $713.60K | Q2 2026 | Aug 14, 2026 |
| State Of Wisconsin Investment Board | Buy | +59,416 | +36.9% | 220,231 | $1.76M | Q2 2026 | Aug 14, 2026 |
| Trexquant Investment Lp | Buy | +51,749 | +9.4% | 602,932 | $4.83M | Q2 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Buy | +48,419 | +68.8% | 118,762 | $951.28K | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about OIS activity
Which institutional owners are buying OIS?
Institutional owners buying OIS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in OIS activity?
"Buy" means an investor increased their reported position in OIS compared to the prior reporting period. This reflects growing exposure to OIL STATES INTERNATIONAL INC (OIS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in OIS increasing?
Institutional interest in OIS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related OIS Institutional Insights
- OIS Overview
- OIS 13F Institutional Holders
- OIS Top Institutional Shareholders
- Energy Sector Institutional Ownership
- Energy Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Energy Stocks By Institutional Investors
- Most Sold Energy Stocks By Institutional Investors
- OIS Insider Trading & SEC Form 4 Activity
- OIS Articles
- Top Institutional Investor Stock Rankings