ULTRA CLEAN HLDGS INC

Ticker: UCTT CUSIP: 90385V107 Class: Common Stock

Paloma Partners Management Co's Holding History (CIK: 0001103882)

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

Q1 2021

Shares 8,715 Value ($000) $506 Avg Close $46.05 Range $31.59 - $59.42

Q4 2020

Shares 14,052 Value ($000) $438 Avg Close $27.90 Range $21.08 - $37.02

Q4 2019

Shares 18,823 Value ($000) $442 Avg Close $20.22 Range $13.94 - $24.24

Q4 2017

Shares 14,912 Value ($000) $345 Avg Close $25.63 Range $18.86 - $34.59

Q3 2017

Shares 61,911 Value ($000) $1,896 Avg Close $23.64 Range $18.41 - $30.92

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	8,715	$506	$46.05	$31.59 - $59.42
Q4 2020	14,052	$438	$27.90	$21.08 - $37.02
Q4 2019	18,823	$442	$20.22	$13.94 - $24.24
Q4 2017	14,912	$345	$25.63	$18.86 - $34.59
Q3 2017	61,911	$1,896	$23.64	$18.41 - $30.92