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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1. Name and Address of Reporting Person * MCLAUGHLIN MARK D   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 _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O PALO ALTO NETWORKS INC., 3000 TANNERY WAY 3. Date of Earliest Transaction (Month/Day/Year) 10/01/2018 (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 10/01/2018   M   40,000 A $ 10.77 227,248 (1) D   Common Stock 10/01/2018   S(2)   9,890 D $ 225.09 (3) 217,358 D   Common Stock 10/01/2018   S(2)   16,084 D $ 226.399 (4) 267,248 D   Common Stock 10/01/2018   S(2)   9,789 D $ 227.36 (5) 267,248 D   Common Stock 10/01/2018   S(2)   4,237 D $ 228.224 (6) 187,248 D   Common Stock               103,849 I See footnote (7) Common Stock               51,911 I See footnote (8)

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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

Employee Stock Option (right to buy)

$ 10.77

10/01/2018

M

40,000

(9)

09/29/2021

Common Stock

40,000

$ 0

438,024

D

Reporting Owners

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

Signatures

/s/ Jeff True, Attorney-in-Fact for Mark D. McLaughlin		10/03/2018
**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)	Reflects the contribution of shares to The McLaughlin Revocable Living Trust.
(2)	The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
(3)	This sale price represents the weighted average sale price of the shares sold ranging from $224.74 to $225.72 per share. 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 Form 4.
(4)	This sale price represents the weighted average sale price of the shares sold ranging from $225.90 to $226.89 per share. 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 Form 4.
(5)	This sale price represents the weighted average sale price of the shares sold ranging from $226.91 to $227.87 per share. 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 Form 4.
(6)	This sale price represents the weighted average sale price of the shares sold ranging from $227.98 to $228.91 per share. 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 Form 4.
(7)	Shares are held by The McLaughlin Revocable Living Trust, for which the Reporting Person serves as a trustee.
(8)	Shares are held by The Mark D. McLaughlin 2017 Annuity Trust ("McLaughlin GRAT I"), for which the Reporting Person serves as a trustee.
(9)	The shares subject to the option are fully vested and exercisable.

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