NATIONAL INSTRS CORP

CUSIP: 636518102 Class: Common Stock

Capital Research Global Investors's Holding History (CIK: 0001422848)

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

Q3 2017
Shares 220,000 Value ($000) $9,277 Avg Close — Range —
Q2 2017
Shares 220,000 Value ($000) $8,848 Avg Close — Range —
Q2 2016
Shares 548,333 Value ($000) $15,024 Avg Close — Range —
Q1 2016
Shares 822,000 Value ($000) $24,750 Avg Close — Range —
Q4 2015
Shares 1,687,264 Value ($000) $48,408 Avg Close — Range —
Q3 2015
Shares 1,687,264 Value ($000) $46,889 Avg Close — Range —
Q2 2015
Shares 1,687,264 Value ($000) $49,707 Avg Close — Range —
Q1 2015
Shares 2,553,528 Value ($000) $81,815 Avg Close — Range —
Q4 2014
Shares 3,062,264 Value ($000) $95,206 Avg Close — Range —
Q3 2014
Shares 3,132,764 Value ($000) $96,896 Avg Close — Range —
Q2 2014
Shares 3,132,764 Value ($000) $101,470 Avg Close — Range —
Q1 2014
Shares 3,132,764 Value ($000) $89,879 Avg Close — Range —