ON SEMICONDUCTOR CORP

Ticker: ON CUSIP: 682189105 Class: EQTY

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

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

Q4 2025

Shares 13,652 Value ($000) $739 Avg Close $51.30 Range $44.56 - $57.52

Q3 2025

Shares 13,652 Value ($000) $673 Avg Close $52.63 Range $46.35 - $63.63

Q2 2025

Shares 13,652 Value ($000) $716 Avg Close $43.47 Range $31.04 - $55.01

Q3 2015

Shares 15,249 Value ($000) $143 Avg Close $10.16 Range $8.40 - $11.86

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	13,652	$739	$51.30	$44.56 - $57.52
Q3 2025	13,652	$673	$52.63	$46.35 - $63.63
Q2 2025	13,652	$716	$43.47	$31.04 - $55.01
Q3 2015	15,249	$143	$10.16	$8.40 - $11.86