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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1053112	Cablevision Systems Corp	CVC	Cable & Other Pay Television Services (4841)	112776686

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1250684	Hank Ratner	1111 Stewart Avenue Bethpage NY 11714	Vice Chairman	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Cablevision Ny Group Class A Common Stock	Acquisiton	2010-03-12	125,675	$8.47	594,796	No	4	M	Direct
Cablevision Ny Group Class A Common Stock	Disposition	2010-03-12	125,575	$24.00	469,221	No	4	S	Direct
Cablevision Ny Group Class A Common Stock	Disposition	2010-03-12	100	$24.01	469,121	No	4	S	Direct
Cablevision Ny Group Class A Common Stock	Acquisiton	2010-03-12	23,818	$4.52	492,939	No	4	M	Direct
Cablevision Ny Group Class A Common Stock	Disposition	2010-03-12	23,818	$24.09	469,121	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Cablevision Ny Group Class A Common Stock	Stock Options (Right to Buy)	Disposition	2010-03-12	125,675	$0.00	125,675	$8.47
Cablevision Ny Group Class A Common Stock	Stock Appreciation Rights	Disposition	2010-03-12	23,818	$0.00	23,818	$4.52

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
537,400	2009-03-05	2014-09-05	No	4	M	Direct
0	2000-05-31	2010-05-31	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Cablevision Ny Group Class A Common Stock	5,591	Indirect	401(k)
Cablevision Ny Group Class A Common Stock	159	Indirect	By Son

Footnotes

Includes restricted shares.
This stock option was previously reported at an exercise price of $10.24, but has been adjusted to reflect dividends.
This stock appreication right was previously reported at an exercise price of $16.06, but has been adjusted to reflect dividends.
Reporting Person disclaims beneficial ownership of these securities and this report shall not be deemed to be an admission that Reporting Person is the beneficial owner of such securities.
Exercise of options under the Employee Stock Plan, exempt under Rule 16b-3.
Exercise of stock appreciation rights under the Employee Stock Plan, exempt under Rule 16b-3.