Insiders are generally long-term investors due to restriction in making short-term profits. In contrast, wealth management institutions always have short-term investment. Wall St. Watchdog reveals information regarding the insiders and institutions which recently decreased stock shares of Cablevision Systems Corporation (NYSE:CVC).

SEC data indicate that these institutions significantly reduced their stock shares of Cablevision Systems Corporation in Q3 2011:

• LUXOR CAPITAL GROUP, LP: On 06/30/2011, held 4,145,172 shares, worth $103,173,331. On 09/30/2011, held 0 shares.
• JANA PARTNERS LLC: On 06/30/2011, held 2,391,723 shares, worth $59,529,985. On 09/30/2011, held 0 shares.
• MIURA GLOBAL MANAGEMENT, LLC: On 06/30/2011, held 2,050,000 shares, worth $51,024,500. On 09/30/2011, held 0 shares.
• THIRD POINT LLC: On 06/30/2011, held 2,000,000 shares, worth $49,780,000. On 09/30/2011, held 0 shares.
• HIGHFIELDS CAPITAL MANAGEMENT LP: On 06/30/2011, held 1,661,085 shares, worth $41,344,406. On 09/30/2011, held 0 shares.

About the company: Cablevision Systems Corporation provides telecommunications and entertainment services. The Company has operations in multimedia delivery, subscription cable television services, championship professional sports teams, and national television program networks.

Competitors to Watch: Comcast Corporation (NASDAQ:CMCSA), Time Warner Cable Inc. (NYSE:TWC), Mediacom Communications Corp. (NASDAQ:MCCC), Time Warner Inc. (NYSE:TWX), Charter Communications, Inc. (NASDAQ:CHTR), DISH Network Corp. (NASDAQ:DISH), The Walt Disney Company (NYSE:DIS), Liberty Global Inc. (NASDAQ:LBTYA), and China Cablecom Hldgs. Ltd. (NASDAQ:CABL).

(Note: Data regarding Cablevision Systems Corporation’s stock holdings are sourced from whalewisdom.com. All data are assumed to be accurate.)

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