13G Filing: Blue Mountain Capital and Avista Healthcare Public Acquisiton Corp (AHPA)

NAMES OF
REPORTING PERSONS

BlueMountain Capital
Management, LLC

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP (see instructions)

(a)  ☐        (b)  ☒

SEC USE ONLY

CITIZENSHIP OR PLACE OF
ORGANIZATION

Delaware, United States of America

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

0

SHARED VOTING POWER

2,040,718

SOLE DISPOSITIVE POWER

0

SHARED DISPOSITIVE POWER

2,040,718

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,040,718

CHECK IF THE AGGREGATE AMOUNT IN ROW
(9) EXCLUDES CERTAIN SHARES (see instructions)

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (9)

6.6% (1)

TYPE OF REPORTING PERSON (see
instructions)

IA