VASCO DATA SEC INTL INC

CUSIP: 92230Y104 Class: COM

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

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

Q4 2017
Shares 1,005 Value ($000) $14 Avg Close — Range —
Q3 2017
Shares 1,205 Value ($000) $15 Avg Close — Range —
Q1 2017
Shares 3,640 Value ($000) $49 Avg Close — Range —
Q3 2016
Shares 2,272 Value ($000) $40 Avg Close — Range —
Q1 2016
Shares 3,434 Value ($000) $53 Avg Close — Range —
Q4 2015
Shares 6,554 Value ($000) $110 Avg Close — Range —
Q4 2014
Shares 2,106 Value ($000) $59 Avg Close — Range —
Q3 2014
Shares 1,482 Value ($000) $28 Avg Close — Range —
Q2 2013
Shares 3,972 Value ($000) $33 Avg Close — Range —