WARRIOR MET COAL INC

Ticker: HCC CUSIP: 93627C101 Class: Common Stock

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

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

Q4 2017

Shares 318,654 Value ($000) $8,014 Avg Close $25.10 Range $18.56 - $30.49

Q3 2017

Shares 632,343 Value ($000) $14,904 Avg Close $22.96 Range $17.02 - $27.62

Q2 2017

Shares 641,550 Value ($000) $10,990 Avg Close $17.37 Range $15.10 - $19.08

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	318,654	$8,014	$25.10	$18.56 - $30.49
Q3 2017	632,343	$14,904	$22.96	$17.02 - $27.62
Q2 2017	641,550	$10,990	$17.37	$15.10 - $19.08