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CUSIP No. 45168K306
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13G/A
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Page
4
of 6 Pages
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This Schedule 13G/A (#2), the Schedule 13G/A (#1) filed February 20, 2020, and the
initial Schedule 13G filed September 4, 2018, collectively, (the Schedule 13G) relate to shares of Common Stock, $0.001 par value per share (the Common Stock), of Idera Pharmaceuticals, Inc.,
a Delaware corporation (the Issuer).
Castellina Ventures Ltd. (Castellina) is a
limited company organized under the laws of the British Virgin Islands whose principal business address and principal office address is 325 Waterfront Drive, Omar Hodge Building, 2nd Floor, Wickhams Cay, Road Town, Tortola, British Virgin
Islands. The Ballaison Trust is the sole shareholder of Castellina (The Ballaison Trust).
The Ballaison Trust
is a trust established under the laws of New Zealand whose principal business address and principal office address is 14, rue de la Corraterie, PO Box 5209, CH-1211 Geneva 11. Edward Martin-Du Pan and Yves Bruderlein are the trustees of The Ballaison Trust. The Ballaison Trust was established for the principal purpose of holding and preserving assets for the benefit of its beneficiaries.
Item 1(a). Name of Issuer:
Idera Pharmaceuticals,
Inc.
Item 1(b). Address of Issuers Principal Executive Offices:
505 Eagleview Blvd., Suite 212, Exton, Pennsylvania 19341
Item 2(a). Name of Person Filing:
(i) Castellina
Ventures Ltd. and (ii) The Ballaison Trust
Item 2(b). Address of Principal Business Office or, if None, Residence:
The address of the principal business office of the Reporting Persons:
Rue de la Corraterie 14
PO Box 5209
1211 Geneva 11
Item 2(c). Citizenship:
Castellina is a limited company organized under the laws of the British Virgin Islands
The Ballaison Trust is a trust formed under the laws of New Zealand
Item 2(d). Title of Class of Securities:
Common Stock, par value $0.001 per share
Item 2(e).
CUSIP Number:
45168K306
Item 3.
Not Applicable.