(CWST) Stock Institutional Trading Activity


(CWST) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q3 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
Q4 2017Renaissance Technologies LLCBuy333,9003,211,600$73,931
Q3 2017Renaissance Technologies LLCBuy232,7582,877,700$54,101
Q2 2017Renaissance Technologies LLCBuy322,6002,644,942$43,403
Q1 2017Renaissance Technologies LLCBuy622,3812,322,342$32,768
Q4 2016Renaissance Technologies LLCBuy420,6191,699,961$21,097
Q3 2016Renaissance Technologies LLCBuy482,7001,279,342$13,177
Q2 2016Renaissance Technologies LLCBuy86,942796,642$6,254
Q1 2016Renaissance Technologies LLCSell-137,542709,700$4,755
Q4 2015Renaissance Technologies LLCBuy298,642847,242$5,067
Q3 2015Renaissance Technologies LLCBuy71,800548,600$3,182
Q2 2015Renaissance Technologies LLCBuy271,700476,800$2,675
Q1 2015Renaissance Technologies LLCBuy118,800205,100$1,128
Q4 2014Renaissance Technologies LLCBuy52,80086,300$349
Q3 2014Renaissance Technologies LLCSell-26,94833,500$129
Q1 2014Renaissance Technologies LLCSell-69,29460,448$309
Q4 2013Renaissance Technologies LLCSell-10,929129,742$753
Q3 2013Renaissance Technologies LLCBuy89,595140,671$809
Q2 2013Renaissance Technologies LLCBuy51,07651,076$220

Frequently asked questions about CWST activity

  • Which institutional owners are buying CWST?

    Institutional owners buying CWST 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 CWST activity?

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

  • Is institutional interest in CWST increasing?

    Institutional interest in CWST 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.