ATMOS ENERGY CORP (ATO) Stock Institutional Trading Activity


ATMOS ENERGY CORP (ATO) 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 Renaissance Technologies LLC, Sequoia Financial Advisors, Cullen Value Fund, Hancock Classic Value, and Meritage Group. 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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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2019Renaissance Technologies LLCSell-9,10081,100$8,348
Q4 2018Renaissance Technologies LLCSell-114,10490,200$8,363
Q3 2018Renaissance Technologies LLCSell-85,896204,304$19,186
Q1 2018Renaissance Technologies LLCBuy600290,200$24,446
Q4 2017Renaissance Technologies LLCBuy116,100289,600$24,874
Q3 2017Renaissance Technologies LLCBuy12,900173,500$14,546
Q2 2017Renaissance Technologies LLCBuy11,600160,600$13,322
Q1 2017Renaissance Technologies LLCBuy33,600149,000$11,770
Q4 2016Renaissance Technologies LLCBuy80,300115,400$8,557
Q2 2016Renaissance Technologies LLCSell-351,00035,100$2,854
Q1 2016Renaissance Technologies LLCBuy12,700386,100$28,672
Q4 2015Renaissance Technologies LLCBuy80,900373,400$23,539
Q3 2015Renaissance Technologies LLCBuy113,300292,500$17,018
Q2 2015Renaissance Technologies LLCBuy1,800179,200$9,189
Q1 2015Renaissance Technologies LLCSell-342,400177,400$9,810
Q4 2014Renaissance Technologies LLCBuy345,400519,800$28,974
Q3 2014Renaissance Technologies LLCBuy131,200174,400$8,319
Q1 2014Renaissance Technologies LLCBuy27,70043,200$2,036
Q3 2013Renaissance Technologies LLCBuy15,50015,500$660

Frequently asked questions about ATO activity

  • Which institutional owners are buying ATO?

    Institutional owners buying ATO 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 ATO activity?

    "Buy" means an investor increased their reported position in ATO compared to the prior reporting period. This reflects growing exposure to ATMOS ENERGY CORP (ATO) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ATO increasing?

    Institutional interest in ATO 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.