BRUKER CORP

Ticker: BRKR CUSIP: 116794108 Class: Common Stock

GW&K Investment Management, LLC's Holding History (CIK: 0001082917)

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

Q4 2019

Shares 125,281 Value ($000) $6,386 Avg Close $46.66 Range $41.25 - $51.17

Q3 2019

Shares 131,398 Value ($000) $5,772 Avg Close $43.88 Range $38.48 - $50.32

Q2 2019

Shares 92,411 Value ($000) $4,616 Avg Close $41.22 Range $36.02 - $50.05

Q1 2019

Shares 93,395 Value ($000) $3,590 Avg Close $35.27 Range $27.37 - $39.36

Q4 2018

Shares 108,593 Value ($000) $3,233 Avg Close $30.80 Range $25.50 - $34.08

Q3 2018

Shares 114,823 Value ($000) $3,841 Avg Close $32.10 Range $27.53 - $35.05

Q2 2018

Shares 116,946 Value ($000) $3,396 Avg Close $29.59 Range $27.38 - $31.73

Q1 2018

Shares 117,692 Value ($000) $3,521 Avg Close $31.56 Range $28.19 - $35.47

Q4 2017

Shares 118,164 Value ($000) $4,055 Avg Close $31.81 Range $28.73 - $35.47

Q3 2017

Shares 83,211 Value ($000) $2,476 Avg Close $27.93 Range $26.16 - $29.35

Q2 2017

Shares 84,359 Value ($000) $2,433 Avg Close $24.94 Range $21.13 - $29.11

Q1 2017

Shares 86,891 Value ($000) $2,027 Avg Close $22.71 Range $20.49 - $24.54

Q4 2016

Shares 87,696 Value ($000) $1,857 Avg Close $21.11 Range $18.90 - $22.69

Q3 2016

Shares 102,381 Value ($000) $2,319 Avg Close $22.08 Range $20.59 - $24.43

Q2 2016

Shares 104,408 Value ($000) $2,374 Avg Close $25.69 Range $20.96 - $28.71

Q1 2016

Shares 92,214 Value ($000) $2,582 Avg Close $23.95 Range $20.07 - $28.11

Q4 2015

Shares 63,641 Value ($000) $1,545 Avg Close $19.94 Range $15.15 - $24.23

Q3 2015

Shares 64,101 Value ($000) $1,053 Avg Close $18.66 Range $15.57 - $20.87

Q2 2015

Shares 63,001 Value ($000) $1,286 Avg Close $19.40 Range $17.30 - $21.43

Q1 2015

Shares 64,791 Value ($000) $1,197 Avg Close $18.19 Range $17.24 - $19.26

Q4 2014

Shares 63,641 Value ($000) $1,249 Avg Close $18.48 Range $16.57 - $20.21

Q3 2014

Shares 54,536 Value ($000) $1,010 Avg Close $20.52 Range $17.69 - $23.91

Q2 2014

Shares 42,151 Value ($000) $1,023 Avg Close $20.84 Range $18.95 - $23.94

Q1 2014

Shares 35,531 Value ($000) $810 Avg Close $20.94 Range $18.30 - $23.43

Q4 2013

Shares 31,231 Value ($000) $617 Avg Close $18.83 Range $17.04 - $20.48

Q3 2013

Shares 26,146 Value ($000) $540 Avg Close $18.35 Range $14.80 - $20.27

Q2 2013

Shares 23,416 Value ($000) $378 Avg Close $16.60 Range $15.08 - $18.41

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	125,281	$6,386	$46.66	$41.25 - $51.17
Q3 2019	131,398	$5,772	$43.88	$38.48 - $50.32
Q2 2019	92,411	$4,616	$41.22	$36.02 - $50.05
Q1 2019	93,395	$3,590	$35.27	$27.37 - $39.36
Q4 2018	108,593	$3,233	$30.80	$25.50 - $34.08
Q3 2018	114,823	$3,841	$32.10	$27.53 - $35.05
Q2 2018	116,946	$3,396	$29.59	$27.38 - $31.73
Q1 2018	117,692	$3,521	$31.56	$28.19 - $35.47
Q4 2017	118,164	$4,055	$31.81	$28.73 - $35.47
Q3 2017	83,211	$2,476	$27.93	$26.16 - $29.35
Q2 2017	84,359	$2,433	$24.94	$21.13 - $29.11
Q1 2017	86,891	$2,027	$22.71	$20.49 - $24.54
Q4 2016	87,696	$1,857	$21.11	$18.90 - $22.69
Q3 2016	102,381	$2,319	$22.08	$20.59 - $24.43
Q2 2016	104,408	$2,374	$25.69	$20.96 - $28.71
Q1 2016	92,214	$2,582	$23.95	$20.07 - $28.11
Q4 2015	63,641	$1,545	$19.94	$15.15 - $24.23
Q3 2015	64,101	$1,053	$18.66	$15.57 - $20.87
Q2 2015	63,001	$1,286	$19.40	$17.30 - $21.43
Q1 2015	64,791	$1,197	$18.19	$17.24 - $19.26
Q4 2014	63,641	$1,249	$18.48	$16.57 - $20.21
Q3 2014	54,536	$1,010	$20.52	$17.69 - $23.91
Q2 2014	42,151	$1,023	$20.84	$18.95 - $23.94
Q1 2014	35,531	$810	$20.94	$18.30 - $23.43
Q4 2013	31,231	$617	$18.83	$17.04 - $20.48
Q3 2013	26,146	$540	$18.35	$14.80 - $20.27
Q2 2013	23,416	$378	$16.60	$15.08 - $18.41