ADVA Optical Networking SE: Notification in accordance with section 26 paragraph 1 WpHG

ADVA Optical Networking SE / Notification in accordance with section 26 paragraph 1 WpHG . Processed and transmitted by Thomson Reuters ONE. The issuer is solely responsible for the content of this announcement.

We have received the following notifications of voting rights pursuant to section 21 paragraph 1
of the German Securities Trading Act (WpHG) on June 5^th, 2013:

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Part 1 of 3
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Notification pursuant to section 21 paragraph 1 WpHG

1. Listed company:
ADVA Optical Networking SE
Maerzenquelle 1-3, 98617 Meiningen-Dreissigacker, Germany

2. Notifier: ING Investment Management Belgium S.A., Brussels, Belgium  

3. Triggering event: Exceeding threshold

4. Threshold (s) crossed or reached: 3%

5. Date at which the threshold is crossed or reached: May 3, 2013

6. Voting rights:
Total amount: 3.002% (1435512 voting rights)
Held indirectly: 3.002% (1435512 voting rights)
attributable to the notifier pursuant to section 22 paragraph 2 WpHG.

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Part 2 of 3
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Notification pursuant to section 21 paragraph 1 WpHG

1. Listed company:
ADVA Optical Networking SE
Maerzenquelle 1-3, 98617 Meiningen-Dreissigacker, Germany

2. Notifier: ING Fund Management B.V, Den Haag, The Netherlands

3. Triggering event: Exceeding threshold

4. Threshold (s) crossed or reached: 3%

5. Date at which the threshold is crossed or reached: May 3, 2013

6. Voting rights:
Total amount: 3.002% (1435512 voting rights)
Held indirectly: 1.91% (914515 voting rights)
attributable to the notifier pursuant to section 22 paragraph 2 WpHG.

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Part 3 of 3
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Notification pursuant to section 21 paragraph 1 WpHG

1. Listed company:
ADVA Optical Networking SE
Maerzenquelle 1-3, 98617 Meiningen-Dreissigacker, Germany

2. Notifier: ING Investment Management Luxembourg S.A., Luxembourg, Luxembourg

3. Triggering event: Exceeding threshold

4. Threshold (s) crossed or reached: 3%

5. Date at which the threshold is crossed or reached: May 3, 2013

6. Voting rights:
Total amount: 3.002% (1435512 voting rights)
Held indirectly: 1.09% (520997 voting rights)
attributable to the notifier pursuant to section 22 paragraph 2 WpHG.

ADVA Optical Networking SE
Maerzenquelle 1-3, 98617 Meiningen-Dreissigacker, Germany
t [phone], f [phone]
[e-mail] (mailto:[e-mail]), www.advaoptical.com (./../../../../../../%5C%5Cwww.advaoptical.com)
Let's ADVANCE

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(ii) they are solely responsible for the content, accuracy and originality of the
information contained therein.

Source: ADVA Optical Networking SE via Thomson Reuters ONE

HUG#1707832

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ADVA Optical Networking SE
Campus Martinsried, Fraunhoferstr. 9a Martinsried/Munich Germany

WKN: 510300;ISIN: DE0005103006;
Listed: Freiverkehr in Hanseatische Wertpapierbörse zu Hamburg,
Freiverkehr in Börse Berlin,
Freiverkehr in Börse Düsseldorf,
Freiverkehr in Bayerische Börse München,
Freiverkehr in Niedersächsische Börse zu Hannover,
Prime Standard in Frankfurter Wertpapierbörse,
Regulierter Markt in Frankfurter Wertpapierbörse;