NATIONAL INSTRS CORP

CUSIP: 636518102 Class: Common Stock

HIGHLAND CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0000860486)

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

Q1 2018
Shares 14,388 Value ($000) $728 Avg Close — Range —
Q2 2017
Shares 7,277 Value ($000) $293 Avg Close — Range —