ULTRA CLEAN HLDGS INC

Ticker: UCTT CUSIP: 90385V107 Class: Common Stock

Laurion Capital Management LP's Holding History (CIK: 0001390202)

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

Q4 2019

Shares 10,900 Value ($000) $256 Avg Close $20.22 Range $13.94 - $24.24

Q1 2018

Shares 13,800 Value ($000) $266 Avg Close $21.09 Range $16.29 - $27.20

Q4 2017

Shares 30,700 Value ($000) $709 Avg Close $25.63 Range $18.86 - $34.59

Q2 2017

Shares 14,323 Value ($000) $269 Avg Close $20.12 Range $14.93 - $26.21

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	10,900	$256	$20.22	$13.94 - $24.24
Q1 2018	13,800	$266	$21.09	$16.29 - $27.20
Q4 2017	30,700	$709	$25.63	$18.86 - $34.59
Q2 2017	14,323	$269	$20.12	$14.93 - $26.21