13D Filing: Blue Mountain Capital and Ocean Rig UDW Inc.

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

SOURCE OF FUNDS (See
instructions)

SC

CHECK IF DISCLOSURE OF LEGAL
PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)

☐

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

9,846,060

SOLE DISPOSITIVE POWER

0

SHARED DISPOSITIVE POWER

9,846,060

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

9,846,060

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

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (11)

10.9% (1)

TYPE OF REPORTING PERSON (See
instructions)

IA