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 * BENCHMARK CAPITAL MANAGEMENT CO IV LLC   2. Issuer Name and Ticker or Trading Symbol POTBELLY CORP [PBPB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 2480 SAND HILL ROAD, SUITE 200 3. Date of Earliest Transaction (Month/Day/Year) 10/09/2013 (Street) MENLO PARK, CA 94025 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ 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 10/09/2013   C   1,000,000 A (1) 1,000,000 (2) I See footnote (2) Common Stock 10/09/2013   C   404,941 A (3) 1,404,941 (2) I See footnote (2) Common Stock 10/09/2013   C   149,737 A (4) 1,554,678 (2) I See footnote (2) Common Stock 10/09/2013   C   18,479 A (5) 1,573,157 (2) I See footnote (2) Common Stock 10/09/2013   C   25,000 A (6) 1,598,157 (2) I See footnote (2)

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

Series B Preferred Stock

$ 0 (1)

10/09/2013

C

1,000,000

09/18/2002

(1)

Common Stock

1,000,000 (2)

$ 0

0

I

See footnote (2)

Series C Preferred Stock

$ 0 (3)

10/09/2013

C

401,481

10/08/2003

(3)

Common Stock

404,941 (2)

$ 0

0

I

See footnote (2)

Series D Preferred Stock

$ 0 (4)

10/09/2013

C

145,833

03/23/2005

(4)

Common Stock

149,737 (2)

$ 0

0

I

See footnote (2)

Series E Preferred Stock

$ 0 (5)

10/09/2013

C

17,857

02/13/2006

(5)

Common Stock

18,479 (2)

$ 0

0

I

See footnote (2)

Series F Preferred Stock

$ 0 (6)

10/09/2013

C

25,000

12/29/2008

(6)

Common Stock

25,000 (2)

$ 0

0

I

See footnote (2)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
BENCHMARK CAPITAL MANAGEMENT CO IV LLC 2480 SAND HILL ROAD SUITE 200 MENLO PARK, CA 94025		X
BENCHMARK FOUNDERS FUND IV LP 2480 SAND HILL RD. #200 MENLO PARK, CA 94025		X
BENCHMARK FOUNDERS FUND IV A LP 2480 SAND HILL RD. #200 MENLO PARK, CA 94025		X
BENCHMARK FOUNDERS FUND IV-B LP 2480 SAND HILL RD. #200 MENLO PARK, CA 94025		X
BENCHMARK CAPITAL PARTNERS IV LP 2480 SAND HILL RD. #200 MENLO PARK, CA 94025		X
HARVEY KEVIN 2480 SAND HILL ROAD SUITE 200 MENLO PARK, CA 94025		X
SPURLOCK STEVEN M 3820 SAND HILL ROAD SUITE 200 MENLO PARK, CA 94025		X
GURLEY J WILLIAM 3820 SAND HILL ROAD SUITE 200 MENLO PARK, CA 94025		X
KAGLE ROBERT 3820 SAND HILL ROAD SUITE 200 MENLO PARK, CA 94025		X
DUNLEVIE BRUCE 2480 SAND HILL ROAD SUITE 200 MENLO PARK, CA 94025		X

Signatures

/s/Steven M. Spurlock, as Managing Member of Benchmark Capital Management Co. IV, LLC		10/11/2013
**Signature of Reporting Person		Date
/s/Steven M. Spurlock, as Managing Member of Benchmark Capital Management Co. IV, LLC, the General Partner of Benchmark Capital Partners IV, L.P.		10/11/2013
**Signature of Reporting Person		Date
/s/Steven M. Spurlock, as Managing Member of Benchmark Capital Management Co. IV, LLC, as the General Partner of Benchmark Founders' Fund IV, L.P.		10/11/2013
**Signature of Reporting Person		Date
/s/Steven M. Spurlock, as Managing Member of Benchmark Capital Management Co. IV, LLC, as the General Partner of Benchmark Founders' Fund IV-A, L.P.		10/11/2013
**Signature of Reporting Person		Date
/s/Steven M. Spurlock, as Managing Member of Benchmark Capital Management Co. IV, LLC, as the General Partner of Benchmark Founders' Fund IV-B, L.P.		10/11/2013
**Signature of Reporting Person		Date
/s/Steven M. Spurlock, by power of attorney for Kevin R. Harvey		10/11/2013
**Signature of Reporting Person		Date
/s/Steven M. Spurlock, by power of attorney for Bruce W. Dunlevie		10/11/2013
**Signature of Reporting Person		Date
/s/Steven M. Spurlock, by power of attorney for J. William Gurley		10/11/2013
**Signature of Reporting Person		Date
/s/Steven M. Spurlock, by power of attorney for Robert C. Kagle		10/11/2013
**Signature of Reporting Person		Date
/s/Steven M. Spurlock		10/11/2013
**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 Series B Preferred Stock automatically converted into Potbelly Corporation ("Potbelly") common stock on a 1-to-1 basis upon the closing of Potbelly's initial public offering and did not have an expiration date.
(2)	Represents shares held by Benchmark Capital Partners IV, L.P., as nominee for Benchmark Capital Partners IV, L.P., Benchmark Founders' Fund IV, L.P., Benchmark Founders' Fund IV-A, L.P., Benchmark Founders' Fund IV-B, L.P. and related individuals (collectively, the "Benchmark Funds"). Benchmark Capital Management Co. IV, L.L.C. ("BCMC IV") is the general partner of Benchmark Capital Partners IV, L.P. and BCMC IV's managing members are Bruce W. Dunlevie, J. William Gurley, Kevin R. Harvey, Robert C. Kagle and Steven Spurlock. These individuals may be deemed to beneficially own the shares held by the Benchmark Funds. Each of these individuals disclaims beneficial ownership of such shares except to the extent of such individuals pecuniary interest therein.
(3)	The Series C Preferred Stock automatically converted into Potbelly common stock on a 1-to-1.0086 basis upon the closing of Potbelly's initial public offering and did not have an expiration date.
(4)	The Series D Preferred Stock automatically converted into Potbelly common stock on a 1-to-1.0268 basis upon the closing of Potbelly's initial public offering and did not have an expiration date.
(5)	The Series E Preferred Stock automatically converted into Potbelly common stock on a 1-to-1.0348 basis upon the closing of Potbelly's initial public offering and did not have an expiration date.
(6)	The Series F Preferred Stock automatically converted into Potbelly common stock on a 1-to-1 basis upon the closing of Potbelly's initial public offering and did not have an expiration date.
Remarks: Bruce W. Dunlevie, J. William Gurley, Kevin R. Harvey, Robert C. Kagle and Steven M. Spurlock are the managing members of Benchmark Capital Management Co IV, L.L.C., which serves as general partner to Benchmark Capital Partners IV, L.P., Benchmark Founders' Fund IV, Benchmark Founders Fund IV-A, L.P. and Benchmark Founders Fund IV-B, L.P. and may be deemed to share voting and investment power over the shares beneficially held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of any securities (except to the extent of such person's or entity's pencuniary interest in such securities) other than any securities being reported herein as being directly owned by such person or entity. The filing of this report is not an admission that any Reporting Person is the beneficial owners of these shares for purposes of Section 16 or for any other purpose.

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