NATIONAL INSTRS CORP

CUSIP: 636518102 Class: Common Stock

WATER ISLAND CAPITAL LLC's Holding History (CIK: 0001222765)

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

Q3 2023
Shares 737,438 Value ($000) $43,966 Avg Close — Range —
Q2 2023
Shares 959,494 Value ($000) $55,075 Avg Close — Range —
Q1 2023
Shares 21,750 Value ($000) $1,140 Avg Close — Range —