SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Atwood Edward C.

(Last)

(First)

(Middle)

1111 STEWART AVENUE

(Street)

BETHPAGE

11714

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
05/24/2011

3. Issuer Name and Ticker or Trading Symbol
CABLEVISION SYSTEMS CORP /NY [ CVC ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Cablevision NY Group Class A Common Stock	83,381	D⁽¹⁾
Cablevision NY Group Class A Common Stock	365,770	I⁽²⁾	by Trust

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Option (Right to Buy)	⁽³⁾	10/01/2014	Cablevision NY Group Class A Common Stock	2,000	$8.65	D
Option (Right to Buy)	⁽³⁾	11/08/2015	Cablevision NY Group Class A Common Stock	2,000	$12.82	D

Explanation of Responses:

1. Includes restricted shares and shares held jointly with spouse.

2. Securities held in trust for the benefit of his spouse. He disclaims beneficial ownership of these securities and this report shall not be deemed to be an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

3. Options granted under the Company's Employee Stock Plan. All the options are vested and exercisable as of the date of this filing.

	Edward C. Atwood	05/31/2011
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.