MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

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

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

Q1 2022

Shares 6,306 Value ($000) $3,063 Avg Close $422.77 Range $340.68 - $499.27

Q4 2021

Shares 6,552 Value ($000) $3,232 Avg Close $500.08 Range $444.81 - $561.94

Q3 2021

Shares 6,659 Value ($000) $3,227 Avg Close $440.15 Range $351.70 - $504.81

Q2 2021

Shares 6,850 Value ($000) $2,558 Avg Close $340.03 Range $291.31 - $382.48

Q1 2021

Shares 7,199 Value ($000) $2,543 Avg Close $351.26 Range $290.78 - $392.28

Q1 2018

Shares 3,000 Value ($000) $347 Avg Close $111.03 Range $96.61 - $119.53

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2022	6,306	$3,063	$422.77	$340.68 - $499.27
Q4 2021	6,552	$3,232	$500.08	$444.81 - $561.94
Q3 2021	6,659	$3,227	$440.15	$351.70 - $504.81
Q2 2021	6,850	$2,558	$340.03	$291.31 - $382.48
Q1 2021	7,199	$2,543	$351.26	$290.78 - $392.28
Q1 2018	3,000	$347	$111.03	$96.61 - $119.53