ON SEMICONDUCTOR CORP

Ticker: ON CUSIP: 682189105 Class: EQTY

THORNBURG INVESTMENT MANAGEMENT INC's Holding History (CIK: 0001145020)

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

Q4 2013

Shares 1,215,998 Value ($000) $10,020 Avg Close $7.29 Range $6.80 - $8.35

Q3 2013

Shares 1,950,318 Value ($000) $14,255 Avg Close $7.67 Range $7.16 - $8.50

Q2 2013

Shares 1,855,318 Value ($000) $14,991 Avg Close $8.02 Range $7.18 - $8.73

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2013	1,215,998	$10,020	$7.29	$6.80 - $8.35
Q3 2013	1,950,318	$14,255	$7.67	$7.16 - $8.50
Q2 2013	1,855,318	$14,991	$8.02	$7.18 - $8.73