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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
HITZ DAVID
  2. Issuer Name and Ticker or Trading Symbol
NETWORK APPLIANCE INC [NTAP]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Executive Vice President
(Last)
(First)
(Middle)
495 EAST JAVA DRIVE
3. Date of Earliest Transaction (Month/Day/Year)
12/01/2005
(Street)

SUNNYVALE, CA 94089
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 12/01/2005   S(1)   25,000 D $ 29.4003 (2) 4,662,250 I by Trust2 (3)
Common Stock               26,273 D  
Common Stock               200 I by Trust (4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
HITZ DAVID
495 EAST JAVA DRIVE
SUNNYVALE, CA 94089
      Executive Vice President  

Signatures

 By: Janice Mahoney by Power of Attorney For: David Hitz   12/01/2005
**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) The sale(s) reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on April 1, 2005.
(2) The sale prices for the reported transactions were in a range of $29.07 to $29.685 per share.
(3) Shares held in trust by David Hitz, Trustee to the Sundance Trust UTA 1/17/02. The reporting person continues to report beneficial ownership of all the issuers common stock held by the trust but disclaims beneficial ownership except to the extent of his pecuniary interest therein.
(4) Shares held in trust by The XYZZY 2000 Charitable Remainder Trust, David Hitz, Trustee. The reporting person continues to report beneficial ownership of all the issuers common stock held by the trust but disclaims beneficial ownership except to the extent of his pecuniary interest therein.
 
Remarks:
Amount of Non-Derivative Securities Beneficially Owned by Direct Ownership includes 318 shares acquired under Network Appliance, Inc. Employee Stock Purchase Plan on November 30, 2005.

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