Form 6-K AIXTRON SE For: Apr 02

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April 2, 2015 11:42 AM EDT

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16 of the
Securities Exchange Act of 1934

Commission File No. 000-51196

For the month of April 2015

AIXTRON SE
(Translation of registrant’s name into English)

Dornkaulstr. 2
52134 Herzogenrath
Germany
(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 ⊠

Form 40-F ⃞

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ⃞

No ⊠

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): N/A

Notification of voting rights pursuant to Art. 25a, Sec. 1 WpHG
We received the following notification pursuant to Art. 25a, Sec. 1 WpHG on
March 30, 2015:

1. Listed company:
AIXTRON SE
Dornkaulstraße 2, 52134 Herzogenrath, Germany

2. Notifier:
Credit Suisse Group AG, Zurich, Switzerland

3. Triggering event: Falling below threshold

4. Threshold(s) crossed or reached: 5%

5. Date at which the threshold is crossed or reached: 25.03.2015

6. Total amount of voting rights: 4.95% (equals 5574652 voting rights)
calculated from the following total number of voting rights issued:
112694555

7. Detailed information on the voting rights proportion:

Voting rights proportion based on financial/other instruments pursuant to
Art. 25a, Sec. 1 WpHG: 0.61% (equals 687382 voting rights) thereof held
indirectly: 0.61% (equals 687382 voting rights)

Voting rights proportion based on financial/other instruments pursuant to
Art. 25 WpHG: 3.19% (equals 3595229 voting rights) thereof held indirectly:
3.19% (equals 3595229 voting rights)

Voting rights pursuant to Art. 21, 22 WpHG: 1.15% (equals 1292041 voting
rights)

8. Detailed information on financial/other instruments pursuant to Art.
25a, Sec. 1 WpHG:

Chain of controlled undertakings: Credit Suisse AG, Credit Suisse
Investments (UK), Credit Suisse Investment Holdings (UK), Credit Suisse
Securities (Europe) Limited

ISIN or name/description of the financial/other instrument: Equity Swap,
Cash Settlement
Maturity:
Expiration date: 05.05.2015

ISIN or name/description of the financial/other instrument: Equity Swap,
Cash Settlement
Maturity:
Expiration date: 14.05.2015

ISIN or name/description of the financial/other instrument: Equity Swap,
Cash Settlement
Maturity:
Expiration date: 05.06.2015

ISIN or name/description of the financial/other instrument: Equity Swap,
Cash Settlement
Maturity:
Expiration date: 08.07.2015

ISIN or name/description of the financial/other instrument: Equity Swap,
Cash Settlement
Maturity:
Expiration date: 08.02.2016

ISIN or name/description of the financial/other instrument: Equity Swap,
Cash Settlement
Maturity:
Expiration date: 03.05.2016

ISIN or name/description of the financial/other instrument: Equity Swap,
Cash Settlement
Maturity:
Expiration date: 05.05.2016

ISIN or name/description of the financial/other instrument: Equity Swap,
Cash Settlement
Maturity:
Expiration date: 02.06.2016

ISIN or name/description of the financial/other instrument: Equity Swap,
Cash Settlement
Maturity:
Expiration date: 04.10.2016

ISIN or name/description of the financial/other instrument: Equity Swap,
Cash Settlement
Maturity:
Expiration date: 03.01.2017

ISIN or name/description of the financial/other instrument: Equity Swap,
Cash Settlement
Maturity:
Expiration date: 02.02.2017

ISIN or name/description of the financial/other instrument: Equity Swap,
Cash Settlement
Maturity:
Expiration date: 28.04.2017

Furthermore we received the following notification pursuant to Art. 25a,
Sec. 1 WpHG on March 30, 2015: