Sec Form 4 Filing - LEONE DOUGLAS M @ ARUBA NETWORKS, INC. - 2012-05-25

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 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: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person LEONE DOUGLAS M 2. Issuer Name and Ticker or Trading Symbol ARUBA NETWORKS, INC. [ ARUN] 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) SEQUOIA CAPITAL, 3000 SAND HILL ROAD, BLDG 4, #250 3. Date of Earliest Transaction (MM/DD/YY) 05/25/2012 (Street) MENLO PARK, CA94025 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 05/25/2012 S 327,377 D $ 13.7223 ( 1 ) 641,918 I By Partnership ( 3 ) Common Stock 05/29/2012 S 305,921 D $ 13.8748 ( 2 ) 335,997 I By Partnership ( 3 ) Common Stock 05/25/2012 S 14,423 D $ 13.7223 ( 1 ) 28,282 I By Partnership ( 4 ) Common Stock 05/29/2012 S 13,479 D $ 13.8748 ( 2 ) 14,803 I By Partnership ( 4 ) Common Stock 4,943 D Common Stock 250,362 I By Trust ( 5 ) Common Stock 250,363 I By Trust ( 5 )

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 LEONE DOUGLAS M SEQUOIA CAPITAL 3000 SAND HILL ROAD, BLDG 4, #250 MENLO PARK, CA94025 X Signatures By: Jeannette Bjoernsen Attorney-in-Fact For: Douglas Leone 05/30/2012 Signature of Reporting Person Date

Explanation of Responses:

( 1 )These trades occurred within the price range of $13.60 through $13.82. The reported price is the weighted average price for all trades within this range. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4. ( 2 )These trades occurred within the price range of $13.63 through $14.03. The reported price is the weighted average price for all trades within this range. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4. ( 3 )Shares held directly by Sequoia Capital US Growth Fund IV ("SC Growth Fund IV"). The Reporting Person is a Managing Director of SCGF GenPar Ltd. ("SCGF GenPar"). SCGF GenPar is the general partner of SCGF IV Management LP, which is the general partner of SC Growth Fund IV. By virtue of these relationships, Mr. Leone may be deemed to share voting and dispositive power with respect to the shares owned by SC Growth Fund IV. Mr. Leone disclaims beneficial ownership of the securities held by SC Growth Fund IV except to the extent of his pecuniary interest therein. ( 4 )Shares held directly by Sequoia Capital USGF Principals Fund IV ("SC USGF Principals Fund IV"). The Reporting Person is a Managing Director of SCGF GenPar. SCGF GenPar is the general partner of SCGF IV Management LP, which is the general partner of SC USGF Principals Fund IV. By virtue of these relationships, Mr. Leone may be deemed to share voting and dispositive power with respect to the shares owned by SC USGF Principals Fund IV. Mr. Leone disclaims beneficial ownership of the securities held by SC USGF Principals Fund IV except to the extent of his pecuniary interest therein. ( 5 )Mr. Leone disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.

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 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).

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.