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 * ZUK NIR   2. Issuer Name and Ticker or Trading Symbol Palo Alto Networks Inc [PANW] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) CTO (Last) (First) (Middle) C/O PALO ALTO NETWORKS INC., 3000 TANNERY WAY 3. Date of Earliest Transaction (Month/Day/Year) 10/20/2017 (Street) SANTA CLARA, CA 95054 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 10/20/2017   A   13,886 (1) A $ 0 1,527,586 D   Common Stock 10/20/2017   A   13,886 (2) A $ 0 1,541,472 D   Common Stock 10/20/2017   D   5,878 (3) D $ 0 1,535,594 D   Common Stock 10/20/2017   F(4)   1,308 D $ 149.61 1,534,286 D   Common Stock               44,976 I See footnote (5) Common Stock               250,000 I See footnote (6)

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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
ZUK NIR C/O PALO ALTO NETWORKS INC. 3000 TANNERY WAY SANTA CLARA, CA 95054	X		CTO

Signatures

/s/ Jeff True, Attorney-in-Fact for Nir Zuk		10/24/2017
**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)	Each share is represented by a restricted stock unit ("RSU"). One-sixteenth (1/16th) of the RSUs will vest on January 20, 2018 and one-sixteenth (1/16) of the RSUs will vest quarterly thereafter, subject to the Reporting Person continuing to be a Service Provider through each vesting date.
(2)	Each share is represented by a performance-based restricted stock unit ("PSU"). The number of shares reported is at the target award amount. The Reporting Person may potentially earn from 50% to 120% of the target based on the achievement, if any, of the performance criteria at the end of the performance period. The actual award earned shall be determined upon certification by the Issuer's Compensation Committee. If earned, the eligible PSUs would vest according to the vesting schedule set forth above in footnote (1).
(3)	Represents the forfeiture of previously reported performance stock awards granted to the Reporting Person that were eligible to vest based on the certified achievement of certain performance objectives.
(4)	This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock awards and performance-based restricted stock awards.
(5)	Shares are held by the Zuk 2015 GRAT dated June 17, 2015, for which the Reporting Person serves as a trustee.
(6)	Shares are held by the Zuk 2017 GRAT dated March 29, 2017, for which the Reporting Person serves as a trustee.

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.