VASCO DATA SEC INTL INC

CUSIP: 92230Y104 Class: COM

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q4 2014
Shares 411,711 Value ($000) $11,614 Avg Close — Range —
Q3 2013
Shares 426,500 Value ($000) $8,010 Avg Close — Range —