Ownership Submission
FORM 4
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

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Abdul-Wahab Umari
  2. Issuer Name and Ticker or Trading Symbol
IDERA PHARMACEUTICALS, INC. [IDRA]
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 IDERA PHARMACEUTICALS, INC., 167 SIDNEY STREET
3. Date of Earliest Transaction (Month/Day/Year)
05/07/2013
(Street)

CAMBRIDGE, MA 02139
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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 05/07/2013   P   2,600,000 A $ 0 0 (4) I See Footnotes (4) (5)
Common Stock 05/07/2013   P   2,400,000 A $ 0 0 (4) I See Footnotes (4) (6)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction 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
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(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
Warrants $ 0.61 05/07/2013   A   1,000,000   05/07/2013 05/07/2018 Common Stock 1,000,000 $ 0 0 (1) I See Footnotes (1) (4)
Warrants $ 0.79 05/07/2013   A   575,758   05/07/2013 06/01/2014 Common Stock 575,758 $ 0 0 (1) I See Footnotes (1) (4)
Warrants $ 0.79 05/07/2013   A   313,341   05/07/2013 06/01/2014 Common Stock 313,341 $ 0 0 (2) I See Footnotes (2) (4)
Warrants $ 0.79 05/07/2013   A   110,901   05/07/2013 06/01/2014 Common Stock 110,901 $ 0 0 (3) I See Footnotes (3) (4)
Warrants $ 0.47 05/07/2013   P   2,600,000   05/07/2013 05/07/2018 Common Stock 2,600,000 $ 0 0 (4) I See Footnotes (4) (5)
Warrants $ 0.47 05/07/2013   P   2,400,000   05/07/2013 05/07/2018 Common Stock 2,400,000 $ 0 0 (6) I See Footnotes (4) (6)

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Abdul-Wahab Umari
C/O IDERA PHARMACEUTICALS, INC.
167 SIDNEY STREET
CAMBRIDGE, MA 02139
  X      

Signatures

 /s/ Abdul-Wahab Umari   05/17/2013
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) On May 7, 2013, upon the consummation of a public offering of the Issuer (the "Offering"), Pillar Pharmaceuticals I, L.P. ("Pillar I"), of which Pillar Invest Corporation ("Pillar GP") is the general partner, acquired, directly from the Issuer, warrants to purchase up to 1,575,758 shares of common stock (the "Pillar I Shares") of the Issuer.
(2) On May 7, 2013, upon the consummation of the Offering, Pillar Pharmaceuticals II, L.P. ("Pillar II"), of which Pillar GP is the general partner, acquired, directly from the Issuer, warrants to purchase up to 313,341 shares of common stock (the "Pillar II Shares") of the Issuer.
(3) On May 7, 2013, upon the consummation of the Offering, Participations Besancon ("Besancon"), a fund advised by Pillar GP, acquired, directly from the Issuer, warrants to purchase up to 110,901 shares of common stock (the "Besancon Warrants").
(4) Abdul-Wahab Umari is a director of Pillar GP and serves as the representative of a Pillar I, Pillar II, Pillar III and Pillar GP on the Issuer's board of directors. Mr. Umari disclaims Section 16 beneficial ownership of the Pillar I Shares, Pillar II Shares, Pillar III Shares, Besancon Warrants and Besancon Shares and this report shall not be deemed an admission that he is the beneficial owners of any such securities, except to the extent of his pecuniary interest therein, if any, by virtue of his ownership interest in Pillar GP. As of the date hereof, Mr. Umari owns directly 46,117 shares of common stock of the Issuer.
(5) On May 7, 2013, upon the consummation of the Offering, Pillar Pharmaceuticals III, L.P. ("Pillar III"), of which Pillar GP is the general partner, acquired, in the Offering, 2,600,000 shares of common stock and warrants to purchase up to 2,600,000 shares of common stock (the "Pillar III Shares") of the Issuer.
(6) On May 7, 2013, upon the consummation of the Offering, Participations Besancon acquired, in the Offering, 2,400,000 shares of common stock and warrants to purchase up to 2,400,000 shares of common stock (the "Besancon Shares").

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