NATIONAL INSTRS CORP

CUSIP: 636518102 Class: Common Stock

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q3 2023
Shares 89,921 Value ($000) $5,361 Avg Close — Range —
Q2 2023
Shares 72,771 Value ($000) $4,177 Avg Close — Range —
Q1 2023
Shares 9,800 Value ($000) $514 Avg Close — Range —