ON SEMICONDUCTOR CORP

Ticker: ON CUSIP: 682189105 Class: EQTY

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q1 2021

Shares 13,064 Value ($000) $544 Avg Close $38.38 Range $32.32 - $42.38

Q3 2019

Shares 272,795 Value ($000) $5,241 Avg Close $19.23 Range $16.65 - $22.36

Q2 2019

Shares 513,041 Value ($000) $10,369 Avg Close $20.66 Range $17.31 - $23.54

Q1 2019

Shares 427,594 Value ($000) $8,796 Avg Close $20.63 Range $15.57 - $23.35

Q4 2018

Shares 634,503 Value ($000) $10,475 Avg Close $17.29 Range $14.55 - $20.06

Q3 2018

Shares 280,176 Value ($000) $5,164 Avg Close $21.37 Range $18.06 - $24.31

Q2 2018

Shares 659,563 Value ($000) $14,665 Avg Close $24.17 Range $21.45 - $26.38

Q1 2018

Shares 756,670 Value ($000) $18,508 Avg Close $24.12 Range $20.21 - $27.10

Q1 2014

Shares 400,000 Value ($000) $3,760 Avg Close $8.98 Range $7.82 - $9.75

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	13,064	$544	$38.38	$32.32 - $42.38
Q3 2019	272,795	$5,241	$19.23	$16.65 - $22.36
Q2 2019	513,041	$10,369	$20.66	$17.31 - $23.54
Q1 2019	427,594	$8,796	$20.63	$15.57 - $23.35
Q4 2018	634,503	$10,475	$17.29	$14.55 - $20.06
Q3 2018	280,176	$5,164	$21.37	$18.06 - $24.31
Q2 2018	659,563	$14,665	$24.17	$21.45 - $26.38
Q1 2018	756,670	$18,508	$24.12	$20.21 - $27.10
Q1 2014	400,000	$3,760	$8.98	$7.82 - $9.75