GENMARK DIAGNOSTICS INC

CUSIP: 372309104 Class: COM

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

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

Q1 2021
Shares 1,288 Value ($000) $31 Avg Close — Range —
Q4 2020
Shares 21,008 Value ($000) $307 Avg Close — Range —
Q2 2020
Shares 18,249 Value ($000) $268 Avg Close — Range —
Q4 2016
Shares 300 Value ($000) $4 Avg Close — Range —
Q3 2015
Shares 4,900 Value ($000) $39 Avg Close — Range —
Q2 2015
Shares 788 Value ($000) $7 Avg Close — Range —
Q3 2013
Shares 2,250 Value ($000) $27 Avg Close — Range —
Q2 2013
Shares 3,350 Value ($000) $35 Avg Close — Range —