MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q4 2016

Shares 128,315 Value ($000) $10,513 Avg Close $74.44 Range $69.57 - $81.67

Q3 2016

Shares 126,995 Value ($000) $10,223 Avg Close $68.33 Range $60.21 - $75.04

Q2 2016

Shares 125,855 Value ($000) $8,598 Avg Close $60.38 Range $55.33 - $65.50

Q1 2016

Shares 119,560 Value ($000) $7,609 Avg Close $54.76 Range $50.58 - $59.11

Q4 2015

Shares 98,095 Value ($000) $6,250 Avg Close $56.88 Range $45.12 - $63.43

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2016	128,315	$10,513	$74.44	$69.57 - $81.67
Q3 2016	126,995	$10,223	$68.33	$60.21 - $75.04
Q2 2016	125,855	$8,598	$60.38	$55.33 - $65.50
Q1 2016	119,560	$7,609	$54.76	$50.58 - $59.11
Q4 2015	98,095	$6,250	$56.88	$45.12 - $63.43