CDK Global (CDK): Sachem Head Capital Dumps More Shares

NAME OF
REPORTING PERSON

Sachem Head Capital Management LP

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP

(a)  ¨        (b)  x

SEC USE ONLY

SOURCE OF FUNDS

    OO

CHECK BOX IF DISCLOSURE OF LEGAL
PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)    ¨

CITIZENSHIP OR PLACE OF
ORGANIZATION

    Delaware

Number of

shares

beneficially

owned by

each

reporting

person

with

SOLE VOTING POWER

    0

SHARED VOTING POWER

    6,732,959

SOLE DISPOSITIVE POWER

    0

SHARED DISPOSITIVE POWER

    6,732,959

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

    6,732,959

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (11) EXCLUDES CERTAIN SHARES    ¨

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (11)

    4.3% (1)

TYPE OF REPORTING PERSON

    IA