ALIGN TECHNOLOGY INC

CUSIP: 16255101 Class: COM

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

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

Q1 2016
Shares 3,240 Value ($000) $236 Avg Close — Range —
Q3 2015
Shares 640 Value ($000) $36 Avg Close — Range —
Q2 2015
Shares 1,940 Value ($000) $122 Avg Close — Range —
Q2 2014
Shares 66 Value ($000) $4 Avg Close — Range —
Q4 2013
Shares 14,912 Value ($000) $852 Avg Close — Range —
Q3 2013
Shares 91 Value ($000) $4 Avg Close — Range —