NATIONAL INSTRS CORP

CUSIP: 636518102 Class: Common Stock

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q3 2023
Shares 1,167 Value ($000) $0 Avg Close — Range —
Q2 2023
Shares 798 Value ($000) $0 Avg Close — Range —
Q1 2023
Shares 6,920 Value ($000) $0 Avg Close — Range —
Q2 2022
Shares 8,829 Value ($000) $275 Avg Close — Range —
Q4 2021
Shares 923 Value ($000) $40 Avg Close — Range —
Q1 2021
Shares 373 Value ($000) $16 Avg Close — Range —
Q2 2019
Shares 146 Value ($000) $6 Avg Close — Range —
Q4 2018
Shares 19,338 Value ($000) $877 Avg Close — Range —
Q3 2018
Shares 183 Value ($000) $8 Avg Close — Range —
Q1 2018
Shares 88 Value ($000) $4 Avg Close — Range —
Q4 2017
Shares 202 Value ($000) $8 Avg Close — Range —
Q1 2017
Shares 17,227 Value ($000) $560 Avg Close — Range —