BALLARD PWR SYS INC NEW

CUSIP: 58586108 Class: Common Stock

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q2 2016
Shares 3,863 Value ($000) $5 Avg Close — Range —
Q4 2014
Shares 93,813 Value ($000) $186 Avg Close — Range —
Q2 2014
Shares 27,013 Value ($000) $111 Avg Close — Range —
Q1 2014
Shares 44,097 Value ($000) $194 Avg Close — Range —