ADVANCED ENERGY INDS

Ticker: AEIS CUSIP: 007973100 Class: EQTY

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

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

Q1 2021

Shares 24,899 Value ($000) $2,719 Avg Close $106.37 Range $94.43 - $123.14

Q4 2020

Shares 46,575 Value ($000) $4,517 Avg Close $83.47 Range $60.49 - $102.42

Q3 2020

Shares 55,975 Value ($000) $3,523 Avg Close $68.49 Range $55.94 - $80.68

Q2 2020

Shares 46,975 Value ($000) $3,185 Avg Close $58.43 Range $40.98 - $73.97

Q1 2020

Shares 48,475 Value ($000) $2,351 Avg Close $62.27 Range $32.74 - $76.98

Q4 2019

Shares 59,175 Value ($000) $4,213 Avg Close $61.03 Range $51.01 - $70.87

Q3 2019

Shares 20,775 Value ($000) $1,192 Avg Close $52.96 Range $45.67 - $59.59

Q2 2019

Shares 21,475 Value ($000) $1,208 Avg Close $52.55 Range $46.29 - $58.16

Q1 2019

Shares 8,400 Value ($000) $417 Avg Close $47.67 Range $39.98 - $52.29

Q4 2018

Shares 8,200 Value ($000) $352 Avg Close $43.68 Range $38.00 - $52.42

Q2 2018

Shares 51,300 Value ($000) $2,980 Avg Close $62.01 Range $56.13 - $67.88

Q1 2018

Shares 73,400 Value ($000) $4,690 Avg Close $67.77 Range $60.29 - $76.49

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	24,899	$2,719	$106.37	$94.43 - $123.14
Q4 2020	46,575	$4,517	$83.47	$60.49 - $102.42
Q3 2020	55,975	$3,523	$68.49	$55.94 - $80.68
Q2 2020	46,975	$3,185	$58.43	$40.98 - $73.97
Q1 2020	48,475	$2,351	$62.27	$32.74 - $76.98
Q4 2019	59,175	$4,213	$61.03	$51.01 - $70.87
Q3 2019	20,775	$1,192	$52.96	$45.67 - $59.59
Q2 2019	21,475	$1,208	$52.55	$46.29 - $58.16
Q1 2019	8,400	$417	$47.67	$39.98 - $52.29
Q4 2018	8,200	$352	$43.68	$38.00 - $52.42
Q2 2018	51,300	$2,980	$62.01	$56.13 - $67.88
Q1 2018	73,400	$4,690	$67.77	$60.29 - $76.49