NATIONAL INSTRS CORP

CUSIP: 636518102 Class: Common Stock

GREAT LAKES ADVISORS, LLC's Holding History (CIK: 0001078013)

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

Q1 2022
Shares 5,250 Value ($000) $213 Avg Close — Range —
Q4 2021
Shares 5,269 Value ($000) $230 Avg Close — Range —
Q3 2021
Shares 5,405 Value ($000) $212 Avg Close — Range —
Q2 2021
Shares 11,398 Value ($000) $482 Avg Close — Range —
Q1 2021
Shares 11,825 Value ($000) $511 Avg Close — Range —
Q4 2020
Shares 8,807 Value ($000) $387 Avg Close — Range —
Q3 2020
Shares 226,943 Value ($000) $8,102 Avg Close — Range —
Q2 2020
Shares 193,504 Value ($000) $7,491 Avg Close — Range —
Q1 2020
Shares 8,917 Value ($000) $295 Avg Close — Range —
Q4 2019
Shares 281,576 Value ($000) $11,922 Avg Close — Range —
Q3 2019
Shares 279,348 Value ($000) $11,730 Avg Close — Range —
Q2 2019
Shares 269,173 Value ($000) $11,302 Avg Close — Range —
Q1 2019
Shares 274,044 Value ($000) $12,156 Avg Close — Range —
Q4 2018
Shares 315,609 Value ($000) $14,322 Avg Close — Range —
Q3 2018
Shares 256,471 Value ($000) $12,395 Avg Close — Range —
Q2 2018
Shares 276,350 Value ($000) $11,601 Avg Close — Range —
Q1 2018
Shares 274,722 Value ($000) $13,893 Avg Close — Range —
Q4 2017
Shares 165,619 Value ($000) $6,895 Avg Close — Range —
Q3 2017
Shares 142,719 Value ($000) $6,018 Avg Close — Range —
Q2 2017
Shares 104,112 Value ($000) $4,187 Avg Close — Range —
Q1 2017
Shares 88,064 Value ($000) $2,867 Avg Close — Range —
Q4 2016
Shares 75,725 Value ($000) $2,334 Avg Close — Range —
Q1 2015
Shares 8,331 Value ($000) $267 Avg Close — Range —