NATIONAL INSTRS CORP

CUSIP: 636518102 Class: Common Stock

ArrowMark Colorado Holdings LLC's Holding History (CIK: 0001483859)

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

Q3 2014
Shares 254,398 Value ($000) $7,869 Avg Close — Range —
Q2 2014
Shares 344,398 Value ($000) $11,155 Avg Close — Range —
Q1 2014
Shares 344,398 Value ($000) $9,881 Avg Close — Range —
Q4 2013
Shares 354,398 Value ($000) $11,348 Avg Close — Range —
Q3 2013
Shares 354,398 Value ($000) $10,962 Avg Close — Range —