COMPASS MINERALS INTL INC

Ticker: CMP CUSIP: 20451N101 Class: Common Stock

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q3 2021

Shares 204,821 Value ($000) $13,190 Avg Close $62.54 Range $54.26 - $68.27

Q2 2021

Shares 179,277 Value ($000) $10,624 Avg Close $62.42 Range $54.73 - $67.43

Q1 2021

Shares 175,198 Value ($000) $10,988 Avg Close $59.57 Range $53.04 - $65.79

Q4 2020

Shares 241,608 Value ($000) $14,912 Avg Close $57.09 Range $49.77 - $61.48

Q3 2020

Shares 246,600 Value ($000) $14,636 Avg Close $50.16 Range $41.98 - $55.64

Q2 2020

Shares 237,278 Value ($000) $11,567 Avg Close $41.66 Range $30.71 - $50.05

Q1 2020

Shares 359,648 Value ($000) $13,836 Avg Close $48.21 Range $31.47 - $58.31

Q4 2019

Shares 352,716 Value ($000) $21,502 Avg Close $49.59 Range $45.73 - $54.07

Q3 2019

Shares 140,343 Value ($000) $7,928 Avg Close $46.24 Range $40.75 - $51.26

Q2 2019

Shares 150,405 Value ($000) $8,265 Avg Close $46.99 Range $43.48 - $50.69

Q1 2019

Shares 212,773 Value ($000) $11,568 Avg Close $42.46 Range $32.98 - $48.11

Q4 2018

Shares 166,441 Value ($000) $6,939 Avg Close $43.49 Range $31.88 - $56.95

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2021	204,821	$13,190	$62.54	$54.26 - $68.27
Q2 2021	179,277	$10,624	$62.42	$54.73 - $67.43
Q1 2021	175,198	$10,988	$59.57	$53.04 - $65.79
Q4 2020	241,608	$14,912	$57.09	$49.77 - $61.48
Q3 2020	246,600	$14,636	$50.16	$41.98 - $55.64
Q2 2020	237,278	$11,567	$41.66	$30.71 - $50.05
Q1 2020	359,648	$13,836	$48.21	$31.47 - $58.31
Q4 2019	352,716	$21,502	$49.59	$45.73 - $54.07
Q3 2019	140,343	$7,928	$46.24	$40.75 - $51.26
Q2 2019	150,405	$8,265	$46.99	$43.48 - $50.69
Q1 2019	212,773	$11,568	$42.46	$32.98 - $48.11
Q4 2018	166,441	$6,939	$43.49	$31.88 - $56.95