POTBELLY CORP

CUSIP: 73754Y100 Class: Common Stock

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

Note: Option positions (PUT/CALL) are excluded.

Q4 2017
Shares 3,528 Value ($000) $43 Avg Close — Range —
Q2 2015
Shares 1,721 Value ($000) $21 Avg Close — Range —
Q1 2015
Shares 465 Value ($000) $6 Avg Close — Range —
Q4 2014
Shares 14,014 Value ($000) $180 Avg Close — Range —