Company: BCDRF
Filing Date: 2025-02-28
Form Type: 20-F
Source: 0000891478-25-000054
Chunk: 1

Company: Banco Santander, S.A.
Filing Date: 2025-02-28
Form: 20-F
Chunk 1
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     | SAN28H         |     | New York Stock Exchange                   |
| 5.439% Senior Preferred Fixed Rate Notes due 2031                                                                                                |     | SAN31A         |     | New York Stock Exchange                   |
| 8.000% Non-Step-Up Non-Cumulative Contingent Convertible Perpetual Preferred Tier 1 Securities                                                   |     | SANP5          |     | New York Stock Exchange                   |
| Senior Non Preferred Callable Floating Rate Notes due 2028                                                                                       |     | SAN28E         |     | New York Stock Exchange                   |
| 5.552% Senior Non Preferred Callable Fixed-to-Fixed Rate Notes due 2028                                                                          |     | SAN28F         |     | New York Stock Exchange                   |
| 5.538% Senior Non Preferred Callable Fixed-to-Fixed Rate Notes due 2030                                                                          |     | SAN30B         |     | New York Stock Exchange                   |
| 5.565% Senior Non Preferred Fixed Rate Notes due 2030                                                                                            |     | SAN30C         |     | New York Stock Exchange                   |
| 6.033% Senior Non Preferred Fixed Rate Notes due 2035                                                                                            |     | SAN35          |     | New York Stock Exchange                   |

*Banco Santander Shares are not listed for trading, but are only listed in connection with the registration of the American Depositary Shares, pursuant to requirements of the New York Stock Exchange.

<div align='center'>Securities registered or to be registered pursuant to Section 12(g) of the Act: None (Title of Class)

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act: None (Title of Class)</div>

Indicate the number of outstanding shares of each of the issuer’s classes of capital stock or common stock as of the close of business covered by the annual report: 15,152,492,322shares

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒ No ☐

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. Yes ☐ No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the