NATIONAL INSTRS CORP

CUSIP: 636518102 Class: Common Stock

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q1 2018
Shares 15,447 Value ($000) $781 Avg Close — Range —
Q4 2017
Shares 15,447 Value ($000) $644 Avg Close — Range —