Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
MOORE NICHOLAS G
  2. Issuer Name and Ticker or Trading Symbol
NETWORK APPLIANCE INC [NTAP]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
24520 BELLA LADERA
3. Date of Earliest Transaction (Month/Day/Year)
11/17/2006
(Street)

LOS ALTOS HILLS, CA 94024
4. If Amendment, Date 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
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 11/17/2006   M   10,000 A $ 16.78 10,000 D  
Common Stock 11/17/2006   S   10,000 D $ 39.75 0 D  
Common Stock 11/17/2006   M   5,000 A $ 20.61 5,000 I by Lmtd Ptnrshp (1)
Common Stock 11/17/2006   M   5,000 A $ 20.61 10,000 I by Lmtd Ptnrshp (1)
Common Stock 11/17/2006   S   10,000 D $ 39.75 0 I by Lmtd Ptnrshp (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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 control number. SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Non-Qualified Stock Option (right to buy) $ 16.78 11/17/2006   M     10,000   (2) 04/08/2012 Common Stock 10,000 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 20.61 11/17/2006   M     5,000   (3) 09/01/2014 Common Stock 5,000 $ 0 5,000 I by Lmtd Ptnrshp (4)
Non-Qualified Stock Option (right to buy) $ 20.61 11/17/2006   M     5,000   (3) 09/01/2014 Common Stock 5,000 $ 0 0 I by Lmtd Ptnrshp (4)

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
MOORE NICHOLAS G
24520 BELLA LADERA
LOS ALTOS HILLS, CA 94024
  X      

Signatures

 By: Janice Mahoney by Power of Attorney For: Nicholas G. Moore   11/20/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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).
(1) Shares held by The Moore Family Ventures,, LP, a limited partnership of which the reporting person is General Partner.
(2) The option shares are immediately exercisable as of the grant date and shall initially be unvested and subject to repurchase by the corporation at the exercise price per share. Optionee shall acquire a vested interest in the option shares, and the corporation's repurchase right shall accordingly lapse, with respect to 25,000 shares upon the optionee's completion of one year of service as a member of the corporation's Board of Directors measured from the grant date; and the balance of the shares in a series of three successive equal annual installments upon optionee's completion of each year of Board service over the three-year period measure from the first anniversay of the grant date.
(3) Option is immediately exercisable, but any shares purchased under the option will be subject to repurchase by the Company at the option exercise price paid per share, upon the Optionee's cessation of Board service prior to vesting in those shares. The shares will vest upon the Optionee's continuation in Board service through the day immediately preceding the next Annual Stockholders Meeting following the grant date.
(4) Option held by The Moore Family Ventures, LP, a limited partnership of which the reporting person is General Partner.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.