13G Filing: Cephalon Inc and Ignyta Inc. (NASDAQ:RXDX)

CUSIP No. 451731103

NAMES OF
REPORTING PERSONS

Cephalon, Inc. (Cephalon)

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP

(a)  ☐        (b)  ☒

SEC USE ONLY

CITIZENSHIP OR PLACE OF
ORGANIZATION

Delaware

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

2,066,071 shares, except that Teva Pharmaceutical Industries Limited (Teva),
the parent company of Cephalon, may be deemed to have sole power to vote these shares.

SHARED VOTING POWER

See response to row 5.

SOLE DISPOSITIVE POWER

2,066,071 shares, except that Teva, of which Cephalon is an indirect wholly-owned
subsidiary, may be deemed to have sole power to dispose of these shares.

SHARED DISPOSITIVE POWER

See response to row 7.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,066,071

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (9) EXCLUDES CERTAIN SHARES  ☐

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW 9

4.95%

TYPE OF REPORTING PERSON

CO