COMPASS MINERALS INTL INC

Ticker: CMP CUSIP: 20451N101 Class: Common Stock

LOOMIS SAYLES & CO L P's Holding History (CIK: 0000312348)

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

Q4 2018

Shares 256,366 Value ($000) $10,688 Avg Close $43.49 Range $31.88 - $56.95

Q3 2018

Shares 276,531 Value ($000) $18,583 Avg Close $53.24 Range $48.77 - $57.91

Q2 2018

Shares 281,465 Value ($000) $18,507 Avg Close $53.77 Range $47.64 - $57.33

Q1 2018

Shares 266,470 Value ($000) $16,068 Avg Close $53.63 Range $45.47 - $60.97

Q4 2017

Shares 270,061 Value ($000) $19,512 Avg Close $53.16 Range $50.45 - $58.03

Q3 2017

Shares 273,853 Value ($000) $17,773 Avg Close $52.24 Range $47.01 - $55.89

Q2 2017

Shares 250,029 Value ($000) $16,327 Avg Close $51.48 Range $48.29 - $53.91

Q1 2017

Shares 198,647 Value ($000) $13,478 Avg Close $58.33 Range $50.29 - $64.38

Q4 2016

Shares 203,614 Value ($000) $15,953 Avg Close $57.67 Range $53.18 - $62.97

Q3 2016

Shares 200,832 Value ($000) $14,801 Avg Close $54.44 Range $50.92 - $57.62

Q2 2016

Shares 202,669 Value ($000) $15,036 Avg Close $56.40 Range $49.77 - $60.87

Q1 2016

Shares 207,887 Value ($000) $14,731 Avg Close $52.78 Range $48.71 - $56.62

Q4 2015

Shares 181,581 Value ($000) $13,668 Avg Close $59.61 Range $52.17 - $63.00

Q3 2015

Shares 163,403 Value ($000) $12,806 Avg Close $59.53 Range $56.23 - $62.65

Q2 2015

Shares 151,254 Value ($000) $12,424 Avg Close $63.39 Range $59.23 - $68.67

Q1 2015

Shares 125,086 Value ($000) $11,659 Avg Close $65.22 Range $60.90 - $68.52

Q4 2014

Shares 91,738 Value ($000) $7,966 Avg Close $60.85 Range $55.96 - $66.04

Q3 2014

Shares 82,748 Value ($000) $6,974 Avg Close $63.23 Range $59.25 - $68.53

Q2 2014

Shares 52,969 Value ($000) $5,071 Avg Close $63.15 Range $57.57 - $67.35

Q1 2014

Shares 39,632 Value ($000) $3,270 Avg Close $57.46 Range $53.12 - $61.48

Q4 2013

Shares 8,432 Value ($000) $675 Avg Close $51.71 Range $48.78 - $56.70

Q3 2013

Shares 1,783 Value ($000) $136 Avg Close $54.32 Range $43.88 - $62.76

Q2 2013

Shares 1,783 Value ($000) $151 Avg Close $57.41 Range $51.74 - $61.58

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	256,366	$10,688	$43.49	$31.88 - $56.95
Q3 2018	276,531	$18,583	$53.24	$48.77 - $57.91
Q2 2018	281,465	$18,507	$53.77	$47.64 - $57.33
Q1 2018	266,470	$16,068	$53.63	$45.47 - $60.97
Q4 2017	270,061	$19,512	$53.16	$50.45 - $58.03
Q3 2017	273,853	$17,773	$52.24	$47.01 - $55.89
Q2 2017	250,029	$16,327	$51.48	$48.29 - $53.91
Q1 2017	198,647	$13,478	$58.33	$50.29 - $64.38
Q4 2016	203,614	$15,953	$57.67	$53.18 - $62.97
Q3 2016	200,832	$14,801	$54.44	$50.92 - $57.62
Q2 2016	202,669	$15,036	$56.40	$49.77 - $60.87
Q1 2016	207,887	$14,731	$52.78	$48.71 - $56.62
Q4 2015	181,581	$13,668	$59.61	$52.17 - $63.00
Q3 2015	163,403	$12,806	$59.53	$56.23 - $62.65
Q2 2015	151,254	$12,424	$63.39	$59.23 - $68.67
Q1 2015	125,086	$11,659	$65.22	$60.90 - $68.52
Q4 2014	91,738	$7,966	$60.85	$55.96 - $66.04
Q3 2014	82,748	$6,974	$63.23	$59.25 - $68.53
Q2 2014	52,969	$5,071	$63.15	$57.57 - $67.35
Q1 2014	39,632	$3,270	$57.46	$53.12 - $61.48
Q4 2013	8,432	$675	$51.71	$48.78 - $56.70
Q3 2013	1,783	$136	$54.32	$43.88 - $62.76
Q2 2013	1,783	$151	$57.41	$51.74 - $61.58