UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16
under the Securities Exchange Act of 1934
For the month of April, 2011.
Commission File Number 001-13896
(Translation of registrants name into English)
Treasury Building, Lower Grand Canal Street, Dublin 2, Ireland
(Address of principal executive offices)
Indicate by check mark whether the registrant files or will file annual reports under cover of
Form 20-F or Form 40-F:
Form 20-F þ Form 40-F o
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by
Regulation S-T Rule 101(b)(1):
Yes o No þ
Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if
submitted solely to provide an attached annual report to security holders.
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by
Regulation S-T Rule 101(b)(7):
Yes o No þ
Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if
submitted to furnish a report or other document that the registrant foreign private issuer must
furnish and make public under the laws of the jurisdiction in which the registrant is incorporated,
domiciled or legally organized (the registrants home country), or under the rules of the home
country exchange on which the registrants securities are traded, as long as the report or other
document is not a press release, is not required to be and has not been distributed to the
registrants security holders, and, if discussing a material event, has already been the subject of
a Form 6-K submission or other Commission filing on EDGAR.
Indicate by check mark whether by furnishing the information contained in this Form, the
registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b)
under the Securities Exchange Act of 1934.
Yes o No þ
If Yes is marked, indicate below the file number assigned to the registrant in connection
with Rule 12g3-2(b):
This Report of Foreign Issuer on Form 6-K is incorporated by
reference into the Post-Effective Amendments on Forms F-3 and S-8
to the Registration Statement on Form F-3 of Elan Corporation, plc
(Registration No. 333-100252), and the Registration Statements on
Form S-8 of Elan Corporation, plc (Registration Nos. 333-100556,
333-07361, 333-121021, 333-135184, 333-135185 and 333-154573).