ARIAD Pharmaceuticals, Inc.
|
(Name of Issuer)
|
Common Stock, $0.001 par value
|
(Title of Class of Securities)
|
04033A100
|
(CUSIP Number)
|
Mark DiPaolo
General Counsel
Sarissa Capital Management LP
660 Steamboat Road, 3rd Floor
Greenwich, CT 06830
203-302-2330
With a copy to:
Russell Leaf
Willkie Farr & Gallagher LLP
787 Seventh Avenue
New York, New York 10019
212-728-8000
|
(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)
|
October 21, 2013
|
(Date of Event which Requires Filing of this Statement)
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CUSIP No. 04033A100
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Page 2 of 10 Pages
|
1
|
NAME OF REPORTING PERSON OR
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Sarissa Capital Management LP
|
|||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) o
(b) o
|
||
3
|
SEC USE ONLY
|
|||
4
|
SOURCE OF FUNDS
WC
|
|||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
|
o | ||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
|
|||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
|
7
|
SOLE VOTING POWER
|
||
8
|
SHARED VOTING POWER
11,517,148
|
|||
9
|
SOLE DISPOSITIVE POWER
|
|||
10
|
SHARED DISPOSITIVE POWER
11,517,148
|
|||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
11,517,148
|
|||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES:
|
o | ||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
6.22%
|
|||
14
|
TYPE OF REPORTING PERSON
PN
|
CUSIP No. 04033A100
|
Page 3 of 10 Pages
|
1
|
NAME OF REPORTING PERSON OR
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Alexander J. Denner
|
|||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) o
(b) o
|
||
3
|
SEC USE ONLY
|
|||
4
|
SOURCE OF FUNDS
WC
|
|||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
|
o | ||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
United States
|
|||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
|
7
|
SOLE VOTING POWER
|
||
8
|
SHARED VOTING POWER
11,517,148
|
|||
9
|
SOLE DISPOSITIVE POWER
|
|||
10
|
SHARED DISPOSITIVE POWER
11,517,148
|
|||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
11,517,148
|
|||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES:
|
o | ||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
6.22%
|
|||
14
|
TYPE OF REPORTING PERSON
IN
|
CUSIP No. 04033A100
|
Page 4 of 10 Pages
|
1
|
NAME OF REPORTING PERSON OR
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Sarissa Capital Offshore Master Fund LP
|
|||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) o
(b) o
|
||
3
|
SEC USE ONLY
|
|||
4
|
SOURCE OF FUNDS
WC
|
|||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
|
o | ||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
Cayman Islands
|
|||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
|
7
|
SOLE VOTING POWER
4,622,984
|
||
8
|
SHARED VOTING POWER
|
|||
9
|
SOLE DISPOSITIVE POWER
4,622,984
|
|||
10
|
SHARED DISPOSITIVE POWER
|
|||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
4,622,984
|
|||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES:
|
o
|
||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
2.50%
|
|||
14
|
TYPE OF REPORTING PERSON
PN
|
CUSIP No. 04033A100
|
Page 5 of 10 Pages
|
1
|
NAME OF REPORTING PERSON OR
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Sarissa Capital Domestic Fund LP
|
|||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) o
(b) o
|
||
3
|
SEC USE ONLY
|
|||
4
|
SOURCE OF FUNDS
WC
|
|||
5
|
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)
|
o | ||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
|
|||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
|
7
|
SOLE VOTING POWER
6,894,164
|
||
8
|
SHARED VOTING POWER
|
|||
9
|
SOLE DISPOSITIVE POWER
6,894,164
|
|||
10
|
SHARED DISPOSITIVE POWER
|
|||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
6,894,164
|
|||
12
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES:
|
o
|
||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
3.72%
|
|||
14
|
TYPE OF REPORTING PERSON
PN
|
CUSIP No. 04033A100
|
Page 6 of 10 Pages
|
CUSIP No. 04033A100
|
Page 7 of 10 Pages
|
Name of Reporting Person
|
Date of Transaction
|
Amount of Securities
|
Price Per Share ($)
|
Sarissa Domestic
|
October 9, 2013
|
1,197,200
|
4.98
|
Sarissa Domestic
|
October 10, 2013
|
108,896
|
5.47
|
Sarissa Domestic
|
October 11, 2013
|
1,267,884
|
4.54
|
Sarissa Domestic
|
October 14, 2013
|
239,440
|
4.31
|
Sarissa Domestic
|
October 15, 2013
|
419,020
|
4.11
|
Sarissa Domestic
|
October 16, 2013
|
299,300
|
4.10
|
Sarissa Domestic
|
October 17, 2013
|
299,300
|
4.45
|
Sarissa Domestic
|
October 18, 2013
|
1,556,360
|
2.77
|
Sarissa Domestic
|
October 21, 2013
|
1,102,039
|
2.80
|
Sarissa Domestic
|
October 22, 2013
|
404,725
|
3.13
|
Sarissa Offshore
|
October 9, 2013
|
802,800
|
4.98
|
Sarissa Offshore
|
October 10, 2013
|
73,022
|
5.47
|
Sarissa Offshore
|
October 11, 2013
|
850,198
|
4.54
|
Sarissa Offshore
|
October 14, 2013
|
160,560
|
4.31
|
Sarissa Offshore
|
October 15, 2013
|
280,980
|
4.11
|
Sarissa Offshore
|
October 16, 2013
|
200,700
|
4.10
|
Sarissa Offshore
|
October 17, 2013
|
200,700
|
4.45
|
Sarissa Offshore
|
October 18, 2013
|
1,043,640
|
2.77
|
Sarissa Offshore
|
October 21, 2013
|
738,989
|
2.80
|
Sarissa Offshore
|
October 22, 2013
|
271,395
|
3.13
|
CUSIP No. 04033A100
|
Page 8 of 10 Pages
|
CUSIP No. 04033A100
|
Page 9 of 10 Pages
|
Dated: October 29, 2013
|
|
SARISSA CAPITAL MANAGEMENT LP
|
|
By:
|
/s/ Seth Platt
|
Name: Seth Platt
|
|
Title: Chief Operating Officer & Chief Compliance Officer
|
|
SARISSA CAPITAL DOMESTIC FUND LP
By: Sarissa Capital Fund GP LP, its general partner
|
|
By:
|
/s/ Seth Platt
|
Name: Seth Platt
|
|
Title: Authorized Person
|
|
SARISSA CAPITAL OFFSHORE MASTER FUND LP
By: Sarissa Capital Offshore Fund GP LLC, its general partner
|
|
By:
|
/s/ Seth Platt
|
Name: Seth Platt
|
|
Title: Authorized Person
|
|
/s/ Alexander J. Denner
|
|
Alexander J. Denner
|
CUSIP No. 04033A100
|
Page 10 of 10 Pages
|
Name
|
Position
|
Alexander J. Denner, Ph.D.
|
Chief Investment Officer
|
Richard Mulligan, Ph.D.
|
Senior Managing Director
|
Mayu Sris
|
Managing Director
|
Mark DiPaolo
|
General Counsel
|
Seth Platt
|
Chief Operating Officer and
|
Chief Compliance Officer
|
SARISSA CAPITAL MANAGEMENT LP
|
|
By:
|
/s/ Seth Platt
|
Name: Seth Platt
|
|
Title: Chief Operating Officer & Chief Compliance Officer
|
|
SARISSA CAPITAL DOMESTIC FUND LP
By: Sarissa Capital Fund GP LP, its general partner
|
|
By:
|
/s/ Seth Platt
|
Name: Seth Platt
|
|
Title: Authorized Person
|
|
SARISSA CAPITAL OFFSHORE MASTER FUND LP
By: Sarissa Capital Offshore Fund GP LLC, its general partner
|
|
By:
|
/s/ Seth Platt
|
Name: Seth Platt
|
|
Title: Authorized Person
|
|
/s/ Alexander J. Denner
|
|
Alexander J. Denner
|