Correction of the voting right notification of October 9, 2008 (published on October 14, 2008): On April

AIXTRON AG / Release of five announcements according to Article 21, Section 1, 24 of the WpHG [the German Securities Trading Act] (share)

Release of a Voting Rights announcement, transmitted by DGAP - a company of
EquityStory AG.
The issuer is solely responsible for the content of this announcement.
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Correction of the voting right notification of October 9, 2008 (published
on October 14, 2008):
On April 30, 2009, OppenheimerFunds Inc., Centennial, CO, USA informed us
according to Article 21, Section 1, 24 of the WpHG that via shares its
Voting Rights on AIXTRON AG, Aachen, Deutschland, ISIN: DE000A0WMPJ6, WKN:
A0WMPJ, exceeded the 3% limit of the Voting Rights on October 02, 2008 and
then amounted to 3.12% (this corresponds to 2833430 Voting Rights).
According to Article 22, Section 1, Sentence 1, No. 6 of the WpHG, 3.12% of
the Voting Rights (this corresponds to 2833430 Voting Rights) were to be
attributed to the company.

Correction of the voting right notification of October 9, 2008 (published
on October 10, 2008):
On April 30, 2009, Massachusetts Mutual Life Insurance Company,
Springfield, Massachusetts, USA informed us according to Article 21,
Section 1, 24 of the WpHG that via shares its Voting Rights on AIXTRON AG,
Aachen, Deutschland, ISIN: DE000A0WMPJ6, WKN: A0WMPJ, exceeded the 3% limit
of the Voting Rights on October 02, 2008 and then amounted to 3.12% (this
corresponds to 2833430 Voting Rights).
According to Article 22, Section 1, Sentence 1, No. 6, Sentence 2 of the
WpHG, 3.12% of the Voting Rights (this corresponds to 2833430 Voting
Rights) were to be attributed to the company.

Voting rights notification:
On April 30, 2009, Oppenheimer Acquisition Corp., Centennial, CO, USA has
informed us according to Article 21, Section 1, 24 of the WpHG that via
shares its Voting Rights on AIXTRON AG, Aachen, Deutschland, ISIN:
DE000A0WMPJ6, WKN: A0WMPJ, have exceeded the 3% limit of the Voting Rights
on October 02, 2008 and now amount to 3.12% (this corresponds to 2833430
Voting Rights).
According to Article 22, Section 1, Sentence 1, No. 6, Sentence 2 of the
WpHG, 3.12% of the Voting Rights (this corresponds to 2833430 Voting
Rights) were to be attributed to the company.

Voting rights notification:
On April 30, 2009, MassMutual Holding LLC., Springfield, Massachusetts, USA
has informed us according to Article 21, Section 1, 24 of the WpHG that via
shares its Voting Rights on AIXTRON AG, Aachen, Deutschland, ISIN:
DE000A0WMPJ6, WKN: A0WMPJ, have exceeded the 3% limit of the Voting Rights
on October 02, 2008 and now amount to 3.12% (this corresponds to 2833430
Voting Rights).
According to Article 22, Section 1, Sentence 1, No. 6, Sentence 2 of the
WpHG, 3.12% of the Voting Rights (this corresponds to 2833430 Voting
Rights) were to be attributed to the company.

Voting rights notification:
On April 30, 2009, Oppenheimer Global Opportunities Fund, Centennial, CO,
USA has informed us according to Article 21, Section 1, 24 of the WpHG that
via shares its Voting Rights on AIXTRON AG, Aachen, Deutschland, ISIN:
DE000A0WMPJ6, WKN: A0WMPJ, have exceeded the 3% limit of the Voting Rights
on October 03, 2008 and now amount to 3.05% (this corresponds to 2766276
Voting Rights).

06.05.2009  Financial News transmitted by DGAP
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Language:     English
Issuer:       AIXTRON AG
              Kackertstr. 15-17
              52072 Aachen
              Deutschland
Internet:     www.aixtron.com
 
End of News                                     DGAP News-Service
 
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