BRUKER CORP

Ticker: BRKR CUSIP: 116794108 Class: Common Stock

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

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

Q4 2019

Shares 5,690 Value ($000) $290 Avg Close $46.66 Range $41.25 - $51.17

Q3 2019

Shares 8,370 Value ($000) $368 Avg Close $43.88 Range $38.48 - $50.32

Q2 2019

Shares 5,840 Value ($000) $292 Avg Close $41.22 Range $36.02 - $50.05

Q1 2016

Shares 378,555 Value ($000) $10,600 Avg Close $23.95 Range $20.07 - $28.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	5,690	$290	$46.66	$41.25 - $51.17
Q3 2019	8,370	$368	$43.88	$38.48 - $50.32
Q2 2019	5,840	$292	$41.22	$36.02 - $50.05
Q1 2016	378,555	$10,600	$23.95	$20.07 - $28.11