(CPK) Stock Institutional Trading Activity


(CPK) 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
Q3 2014Renaissance Technologies LLCBuy86,650250,850$10,450
Q2 2014Renaissance Technologies LLCBuy11,000164,200$11,712
Q1 2014Renaissance Technologies LLCBuy13,600153,200$9,676
Q4 2013Renaissance Technologies LLCBuy3,900139,600$8,379
Q3 2013Renaissance Technologies LLCBuy8,500135,700$7,123
Q2 2013Renaissance Technologies LLCBuy127,200127,200$6,550

Frequently asked questions about CPK activity

  • Which institutional owners are buying CPK?

    Institutional owners buying CPK 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 CPK activity?

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

  • Is institutional interest in CPK increasing?

    Institutional interest in CPK 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.