STOCK MARKET INFORMATION

Exchanges and indices where Iberdrola is listed

On which markets are stocks listed?

Shares in Iberdrola are admitted for trading on Stock Exchanges in Madrid, Barcelona, Bilbao and Valencia, and are traded via the Automated Quotation System (Continuous Market). In New York it is listed as an ADR "American Depositary Receipt, (www.adrbnymellon.com ), and the shares of Avangrid Inc. at the NYSE. In addition, thanks to its stake in Neonergia External link, opens in new window. (of which it controls 50% + 1 share), it is also present on the São Paulo Stock Exchange B3 External link, opens in new window..

On which stock market indices is the share listed?

Iberdrola is listed on over 65 stock market indices at national, European and global level, including: IBEX-35, DOW JONES EUROSTOXX 50 (made up of the 50 most relevant securities in the euro zone), DOW JONES STOXX GLOBAL 1800 (comprising the 1,800 leading companies in the markets of Europe, Asia-Pacific and the Americas) and DOW JONES SUSTAINABILITY INDEX (which classifies the companies with the best sustainable profile).

Iberdrola's ADR program

"American Depositary Receipt" (ADR) is a US negotiable certificate that represents the underlying securities of a non-US company (Iberdrola). These certificates are issued in US dollars and have the same rights as the ordinary shares they represent. In addition, ADR dividends are paid in US dollars.

Each Iberdrola ADR represents four (4) ordinary shares in Iberdrola.

In the case of Iberdrola, the ADR program is Level 1, which means that they are not negotiable on an organized market, but are negotiated OTC ("over-the-counter") through the bank sponsoring the program (Bank of New York Mellon). For any question related to the ADRs, please contact:

Broker Desk for Institutional Investors

New York (Rick Maehr):
Direct tel.: +1 212 815 2275
adrdesk@bnymellon.com

London (Mark Lewis):
Direct tel.: +44 (0)20 7964 6089
mark.lewis@bnymellon.com

Contact Details for all Depositary Receipt Holders and Owners

Regular mail:
BNY Mellon
P.O. Box 505000
Louisville, KY 40233-5000

Overnight mail:
BNY Mellon
462 South 4th Street - Suite 1600
Louisville, KY 40202

E-mail:
shrrelations@cpushareownerservices.com

Telephone inquiries:
From US tel.: 888 269 2377
Outside US tel.: +1 201 680 6825