HYDROGENICS CORP NEW

CUSIP: 448883207 Class: COM

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

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

Q1 2019
Shares 3,541 Value ($000) $28 Avg Close — Range —
Q4 2018
Shares 2,600 Value ($000) $13 Avg Close — Range —
Q3 2018
Shares 2,600 Value ($000) $19 Avg Close — Range —
Q2 2018
Shares 2,600 Value ($000) $20 Avg Close — Range —
Q4 2016
Shares 3,700 Value ($000) $16 Avg Close — Range —