Exhibit 99.1

Joint Filer Information

Name of Joint Filer:	Thompson Dean
Address of Joint Filer:	c/o Avista Capital Partners
	65 East 55th Street 18th Floor
	New York, NY  10022
Relationship of Joint Filer to Issuer:	10% Owner; Director; Officer (Executive Chairman)
Issuer Name and Ticker or Trading Symbol:	Avista Healthcare Public Acquisition Corp. [AHPA]
Date of Earliest Transaction Required To be Reported (Month/Day/Year):	12/10/2018
Designated Filer:	David Burgstahler

Name of Joint Filer:	David Burgstahler
Address of Joint Filer:	c/o Avista Capital Partners
	65 East 55th Street 18th Floor
	New York, NY  10022
Relationship of Joint Filer to Issuer:	10% Owner; Director; Officer (President and Chief Executive Officer)
Issuer Name and Ticker or Trading Symbol:	Avista Healthcare Public Acquisition Corp. [AHPA]
Date of Earliest Transaction Required To be Reported (Month/Day/Year):	12/10/2018
Designated Filer:	David Burgstahler