FORM 4
[ X ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Protopapas Anna 		2. Issuer Name and Ticker or Trading Symbol

ARIAD PHARMACEUTICALS INC [ ARIA ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

C/O ARIAD PHARMACEUTICALS, INC., 125 BINNEY STREET 		3. Date of Earliest Transaction (MM/DD/YYYY)

2/16/2017
(Street)

CAMBRIDGE, MA 02142
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   2/16/2017     D    41910   D   (1) (2) 0   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy)   $8.87   2/16/2017     D         75000      (3)   (3) Common Stock   75000.0   $0   0   D    
Stock Option (Right to Buy)   $4.91   2/16/2017     D         25000      (3)   (3) Common Stock   25000.0   $0   0   D    
Stock Option (Right to Buy)   $23.82   2/16/2017     D         25000      (3)   (3) Common Stock   25000.0   $0   0   D    

Explanation of Responses:
( 1)  Pursuant to the Agreement and Plan of Merger, dated as of January 8, 2017 (the "Merger Agreement"), between the Company, Takeda Pharmaceutical Company Limited ("Takeda") and Kiku Merger Co., Inc. ("Purchaser"), on February 16, 2017, Merger Sub was merged with and into the Company, with the Company continuing as the surviving corporation and a wholly owned subsidiary of Parent (the "Merger"). Pursuant to the Merger Agreement, at the effective time of the Merger, each share of common stock, par value $0.001 per share, of the Company (each, a "Share") was converted into the right to receive $24.00 in cash.
( 2)  The number of Shares reported includes 5,508 unvested restricted Shares subject to a lapsing right of repurchase by the Company (each, a "Restricted Share") and 12,500 Shares underlying unvested restricted stock units (each, an "RSU"). By virtue of the Merger and without any required action on the part of the holder thereof, all vesting conditions and restrictions applicable to each Restricted Share lapsed and each Restricted Share was converted automatically into the right to receive $24.00 in cash. In addition, pursuant to the Merger Agreement, each RSU outstanding immediately prior to the consummation of the Merger automatically and without any required action on the part of its holder became fully vested and was converted immediately prior to, and contingent upon, the consummation of the Merger into a vested right to receive a lump-sum cash payment in an amount equal to $24.00 for each Share underlying the RSU, less any required withholding taxes.
( 3)  Pursuant to the Merger Agreement, each option outstanding immediately prior to the consummation of the tender offer by Takeda and Purchaser to acquire all the outstanding Shares for $24.00 in cash (the "Offer"), whether vested or unvested, automatically became fully vested and was canceled as of immediately prior to, and contingent upon, the consummation of the Offer in exchange for the right to receive a lump-sum cash payment in the amount of the Option Consideration, if any, less any required withholding taxes, with respect to such Option. "Option Consideration" means, with respect to any Option, an amount equal to the product of (i) the number of Shares issuable under such Option multiplied by (ii) the excess of (x) $24.00 over (y) the exercise price payable in respect of each Share issuable under such Option; provided, however, that the Option Consideration for each Option with an exercise price equal to or greater than $24.00 shall be $0.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Protopapas Anna
C/O ARIAD PHARMACEUTICALS, INC.
125 BINNEY STREET
CAMBRIDGE, MA 02142 		X



Signatures
Karen E. Needham, under power of attorney dated 04/09/2016 2/17/2017
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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