PATTERSON-UTI ENERGY INC (PTEN) Stock Institutional Trading Activity
PATTERSON-UTI ENERGY INC (PTEN) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q1 2026), investors with some of the largest reported share count changes include Kahn Brothers Group, Sequoia Financial Advisors, Renaissance Technologies LLC, Atlantic Investment Management, and Third Point. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.
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- PATTERSON-UTI ENERGY INC (PTEN) stock institutional ownership
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| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q4 2015 | Kahn Brothers Group | Sell | -18,730 | 1,069,841 | $16,133,202 |
| Q4 2015 | Renaissance Technologies LLC | Sell | -1,316,400 | 210,738 | $3,178 |
| Q3 2015 | Kahn Brothers Group | Buy | 68,680 | 1,088,571 | $14,303,822 |
| Q3 2015 | Renaissance Technologies LLC | Buy | 1,126,600 | 1,527,138 | $20,067 |
| Q2 2015 | Kahn Brothers Group | Buy | 40,068 | 1,019,891 | $19,189,249 |
| Q2 2015 | Renaissance Technologies LLC | Sell | -623,100 | 400,538 | $7,536 |
| Q1 2015 | Kahn Brothers Group | Buy | 89,214 | 979,823 | $18,396,177 |
| Q1 2015 | Fairfax Financial Holdings | Buy | 13,000 | 25,000 | $469 |
| Q4 2014 | Kahn Brothers Group | Buy | 264,355 | 890,609 | $14,775,204 |
| Q4 2014 | Renaissance Technologies LLC | Buy | 923,900 | 1,023,638 | $16,982 |
| Q3 2014 | Kahn Brothers Group | Sell | -277,500 | 626,254 | $20,372,043 |
| Q2 2014 | Kahn Brothers Group | Sell | -414,838 | 903,754 | $31,577,165 |
| Q2 2014 | Fairfax Financial Holdings | Sell | -5,000 | 12,000 | $419 |
| Q2 2014 | Renaissance Technologies LLC | Sell | -793,296 | 99,738 | $3,485 |
| Q1 2014 | Kahn Brothers Group | Sell | -89,688 | 1,318,592 | $41,772,995 |
| Q1 2014 | Fairfax Financial Holdings | Sell | -2,000 | 17,000 | $538 |
| Q1 2014 | Renaissance Technologies LLC | Buy | 608,796 | 893,034 | $28,291 |
| Q4 2013 | Kahn Brothers Group | Sell | -562,200 | 1,408,280 | $35,657,650 |
| Q4 2013 | Donald Smith & Co. | Buy | 60 | 275,973 | $6,988 |
| Q3 2013 | Kahn Brothers Group | Buy | 30,600 | 1,970,480 | $42,128,862 |
| Q3 2013 | Renaissance Technologies LLC | Sell | -1,048,700 | 284,238 | $6,077 |
| Q3 2013 | Donald Smith & Co. | Sell | -92 | 275,913 | $5,899 |
| Q2 2013 | Kahn Brothers Group | Buy | 1,939,880 | 1,939,880 | $37,546,378 |
| Q2 2013 | Fairfax Financial Holdings | Buy | 19,000 | 19,000 | $368 |
| Q2 2013 | Renaissance Technologies LLC | Buy | 1,332,938 | 1,332,938 | $25,799 |
| Q2 2013 | Donald Smith & Co. | Buy | 276,005 | 276,005 | $5,342 |
Frequently asked questions about PTEN activity
Which institutional owners are buying PTEN?
Institutional owners buying PTEN 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 PTEN activity?
"Buy" means an investor increased their reported position in PTEN compared to the prior reporting period. This reflects growing exposure to PATTERSON-UTI ENERGY INC (PTEN) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in PTEN increasing?
Institutional interest in PTEN 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.