POTBELLY CORP

CUSIP: 73754Y100 Class: Common Stock

ALGERT GLOBAL LLC's Holding History (CIK: 0001275218)

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

Q2 2017
Shares 15,330 Value ($000) $176 Avg Close — Range —
Q1 2017
Shares 174,600 Value ($000) $2,427 Avg Close — Range —
Q4 2016
Shares 170,684 Value ($000) $2,202 Avg Close — Range —
Q3 2016
Shares 147,299 Value ($000) $1,831 Avg Close — Range —
Q2 2016
Shares 10,400 Value ($000) $130 Avg Close — Range —