Notification in accordance with section 26 paragraph 1 WpHG with the objective of Europe-wide distribution

ADVA Optical Networking SE / Notification in accordance with section 26 paragraph 1 WpHG with the objective of Europe-wide distribution . Processed and transmitted by NASDAQ OMX Corporate Solutions. 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 August 27, 2015:

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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: Source Markets PLC, Dublin 2, Ireland

3. Triggering event: Above threshold

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

5. Date at which the threshold is crossed or reached: August 25, 2015

6. Voting rights:

Total amount: 3.05% (1482272 voting rights)

Held directly: 3.05% (1482272 voting rights)

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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: Source Holdings Limited, Georgetown, Grand Cayman, Cayman Islands

3. Triggering event: Above threshold

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

5. Date at which the threshold is crossed or reached: August 25, 2015

6. Voting rights:

Total amount: 3.05% (1482272 voting rights)

Held indirectly: 3.05% (1482272 voting rights)

attributable to the notifier of Source Markets PLC, pursuant to section 22 paragraph 1, sentence 1 no. 6 WpHG in connection with sentence 2

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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: Source Investment Management Limited, Dublin 2, Ireland

3. Triggering event: Above threshold

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

5. Date at which the threshold is crossed or reached: August 25, 2015

6. Voting rights:

Total amount: 3.05% (1482272 voting rights)

Held indirectly: 3.05% (1482272 voting rights)

attributable to the notifier of Source Markets PLC, pursuant to section 22 paragraph 1, sentence 1 no. 6 WpHG

ADVA Optical Networking SE
Maerzenquelle 1-3, 98617 Meiningen-Dreissigacker, Germany
t +49 3693 450 0, f +49 3963 450 499
investor-relations@advaoptical.com, www.advaoptical.com
Let's ADVANCE

This announcement is distributed by NASDAQ OMX Corporate Solutions on behalf of NASDAQ OMX Corporate Solutions clients.
The issuer of this announcement warrants that they are solely responsible for the content, accuracy and originality of the information contained therein.
Source: ADVA Optical Networking SE via Globenewswire

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