(AC) Stock Institutional Trading Activity


(AC) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q2 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC. 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
Q2 2025Renaissance Technologies LLCSell-20024,400$915,000
Q4 2024Renaissance Technologies LLCBuy10024,600$842,784
Q3 2024Renaissance Technologies LLCSell-20024,500$867,790
Q2 2024Renaissance Technologies LLCBuy80024,700$840,294
Q1 2024Renaissance Technologies LLCBuy3,59723,900$782
Q4 2023Renaissance Technologies LLCBuy3,10320,303$725
Q3 2023Renaissance Technologies LLCBuy3,00017,200$628
Q2 2023Renaissance Technologies LLCBuy60014,200$503
Q1 2023Renaissance Technologies LLCBuy10013,600$503
Q4 2022Renaissance Technologies LLCSell-70013,500$567
Q3 2022Renaissance Technologies LLCSell-1,30014,200$522
Q2 2022Renaissance Technologies LLCSell-12,00015,500$555
Q1 2022Renaissance Technologies LLCBuy10027,500$1,153
Q4 2021Renaissance Technologies LLCSell-6,60027,400$1,178
Q3 2021Renaissance Technologies LLCSell-5,60034,000$1,272
Q2 2021Renaissance Technologies LLCBuy3,02539,600$1,539
Q1 2021Renaissance Technologies LLCSell-2,92536,575$1,312
Q4 2020Renaissance Technologies LLCSell-3,30039,500$1,387
Q3 2020Renaissance Technologies LLCBuy4,00042,800$1,546
Q2 2020Renaissance Technologies LLCSell-2,60038,800$1,424
Q1 2020Renaissance Technologies LLCBuy2,50041,400$1,267
Q4 2019Renaissance Technologies LLCBuy4,80038,900$1,525
Q3 2019Renaissance Technologies LLCBuy8,10034,100$1,214
Q2 2019Renaissance Technologies LLCBuy8,10026,000$972
Q1 2019Renaissance Technologies LLCBuy5,80017,900$708
Q4 2018Renaissance Technologies LLCSell-14,33112,100$426
Q3 2018Renaissance Technologies LLCSell-7,76926,431$1,125
Q1 2018Renaissance Technologies LLCSell-36,80034,200$1,281
Q4 2017Renaissance Technologies LLCSell-20,60071,000$2,421
Q3 2017Renaissance Technologies LLCSell-11,40091,600$3,270

Frequently asked questions about AC activity

  • Which institutional owners are buying AC?

    Institutional owners buying AC 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 AC activity?

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

  • Is institutional interest in AC increasing?

    Institutional interest in AC 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.