May 9 (Reuters) - Ritchie Bros. Auctioneers Inc RBA.TO :
* RITCHIE BROS. REPORTS FIRST QUARTER 2019 RESULTS
* Q1 EARNINGS PER SHARE $0.17
* Q1 REVENUE $303.4 MILLION VERSUS REFINITIV IBES ESTIMATE OF $281.7 MILLION
* Q1 EARNINGS PER SHARE ESTIMATE $0.19 -- REFINITIV IBES DATA
* INVENTORY SALES REVENUE INCREASED 56% TO $131.1 MILLION IN Q1 2019, COMPARED TO $84.2 MILLION IN Q1 2018