HALLIBURTON CO (HAL) Stock Institutional Trading Activity
HALLIBURTON CO (HAL) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Hancock Classic Value, Cullen Value Fund, Renaissance Technologies LLC, Dodge & Cox Stock Fund, and Sequoia Financial Advisors. 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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- HALLIBURTON CO (HAL) stock institutional ownership
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| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q2 2017 | Causeway Capital Management | Buy | 3,145,390 | 5,377,262 | $229,663 |
| Q1 2017 | Hancock Classic Value | Sell | -1,680,540 | 763,105 | $37,552 |
| Q1 2017 | Causeway Capital Management | Buy | 606,528 | 2,231,872 | $125,998 |
| Q1 2017 | Renaissance Technologies LLC | Buy | 1,312,000 | 2,922,895 | $143,836 |
| Q1 2017 | Tweedy, Browne Co All Funds (US) | Sell | -59,567 | 3,507,794 | $172,619 |
| Q4 2016 | Renaissance Technologies LLC | Buy | 503,500 | 1,610,895 | $87,133 |
| Q4 2016 | Causeway Capital Management | Sell | -978,787 | 1,625,344 | $102,778 |
| Q4 2016 | Hancock Classic Value | Sell | -681,497 | 2,443,645 | $132,177 |
| Q4 2016 | Tweedy, Browne Co All Funds (US) | Sell | -538,893 | 3,567,361 | $192,959 |
| Q3 2016 | Causeway Capital Management | Buy | 867,404 | 2,604,131 | $131,468 |
| Q3 2016 | Hancock Classic Value | Sell | -511,131 | 3,125,142 | $140,256 |
| Q3 2016 | Tweedy, Browne Co All Funds (US) | Sell | -1,004,323 | 4,106,254 | $184,289 |
| Q2 2016 | Renaissance Technologies LLC | Buy | 567,700 | 1,107,395 | $50,154 |
| Q2 2016 | Brave Warrior Advisors | Sell | -4,842,845 | 1,619,013 | $73,325 |
| Q2 2016 | Causeway Capital Management | Buy | 1,736,727 | 1,736,727 | $90,040 |
| Q2 2016 | Hancock Classic Value | Buy | 101,688 | 3,636,273 | $164,687 |
| Q2 2016 | Tweedy, Browne Co All Funds (US) | Sell | -6,683 | 5,110,577 | $231,458 |
| Q1 2016 | Renaissance Technologies LLC | Sell | -148,100 | 539,695 | $19,278 |
| Q1 2016 | Hancock Classic Value | Buy | 3,529,535 | 3,534,585 | $126,255 |
| Q1 2016 | Tweedy, Browne Co All Funds (US) | Sell | -215,103 | 5,117,260 | $182,789 |
| Q1 2016 | Brave Warrior Advisors | Sell | -37,051 | 6,461,858 | $230,818 |
| Q4 2015 | Muhlenkamp & Co | Sell | -900 | 100,000 | $3,404 |
| Q4 2015 | Tweedy, Browne Co All Funds (US) | Buy | 35,635 | 5,332,363 | $181,514 |
| Q4 2015 | Brave Warrior Advisors | Sell | -711,221 | 6,498,909 | $221,223 |
| Q4 2015 | Viking Global Investors | Buy | 6,667,076 | 6,667,076 | $226,947 |
| Q4 2015 | ValueAct Holdings | Sell | -20,645,265 | 16,504,295 | $561,806 |
| Q3 2015 | Muhlenkamp & Co | Sell | -9,350 | 100,900 | $3,567 |
| Q3 2015 | Renaissance Technologies LLC | Sell | -1,219,000 | 687,795 | $24,314 |
| Q3 2015 | Tweedy, Browne Co All Funds (US) | Sell | -16,095 | 5,296,728 | $187,239 |
| Q3 2015 | Brave Warrior Advisors | Buy | 1,462,173 | 7,210,130 | $254,878 |
Frequently asked questions about HAL activity
Which institutional owners are buying HAL?
Institutional owners buying HAL 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 HAL activity?
"Buy" means an investor increased their reported position in HAL compared to the prior reporting period. This reflects growing exposure to HALLIBURTON CO (HAL) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in HAL increasing?
Institutional interest in HAL 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.