Banco Santander (SAN) reports $13.35B in 901 holdings on 13F

Rhea-AI Filing Summary

Banco Santander, S.A. filed a Form 13F reporting its institutional holdings as of the reporting period. The filing lists 901 holdings with a total value of $13,354,746,042 and names 5 other included managers. The report was signed by Ruben Navajo on 02-10-2026.

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

OMB APPROVAL

OMB Number:			3235-0006
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hours per response:			23.8

Report for the Calendar Year or Quarter Ended: 12-31-2025

Check here if Amendment		Amendment Number:
This Amendment (Check only one.):		is a restatement.
		adds new holdings entries.

Institutional Investment Manager Filing this Report:
Name:	Banco Santander, S.A.
Address:	Ciudad Grupo Santander
	Boadilla del Monte
	Madrid, U3 28660
Form 13F File Number:	028-04177
CRD Number (if applicable):
SEC File Number (if applicable):	001-12518

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name:		Ruben Navajo
Title:		Head of Group Accounting
Phone:		034-615900262
Signature, Place, and Date of Signing:
/s/ Ruben Navajo			Madrid, U3	02-10-2026
[Signature]			[City, State]	[Date]

Report Type (Check only one.):
X	13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
	13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
	13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

Form 13F Summary Page
	Report Summary:
	Number of Other Included Managers:		5
	Form 13F Information Table Entry Total:		901
	Form 13F Information Table Value Total:		13,354,746,042
			(round to nearest dollar)

List of Other Included Managers:
Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
[If there are no entries in this list, state "NONE" and omit the column headings and list entries.]
	No.	Name	Form 13F File No.	CRD No. (if applicable)	SEC File No. (if applicable)	CIK
	1	Banco Santander International SA	028-17923			0001697263
	2	Banco Santander International	028-17917			0001697453
	3	SAM Investment Holdings, S.L.	028-18759			0001739361
	4	Grupo Empresarial Santander, S.L.	028-20720			0001844952
	5	Banco Santander Mexico S.A., Institucion de Banca Multiple, Grupo Financiero Santander Mexico	028-17978			0001698287

FAQ

What does Banco Santander's Form 13F disclose for SAN?

The Form 13F discloses institutional holdings totaling $13,354,746,042 across 901 reported positions. It also lists 5 other included managers related to this filing and is signed by Ruben Navajo on 02-10-2026.

How many holdings did Banco Santander report in the 13F filing?

Banco Santander reported 901 entries in its Form 13F information table. The summary page explicitly states the Form 13F information table entry total as 901 and the aggregated table value as $13,354,746,042.

Who signed Banco Santander's 13F and when was it signed?

The report is signed by Ruben Navajo, listed as Head of Group Accounting. The signature block shows the place as Madrid and the signing date as 02-10-2026 on the form cover page.

Does the 13F filing list other managers alongside Banco Santander?

Yes, the summary lists 5 other included managers by name, including Banco Santander International SA and Banco Santander Mexico S.A. each with their Form 13F file numbers provided on the summary page.

What total value do the reported holdings represent in the 13F?

The Form 13F summary page reports a total information table value of $13,354,746,042, rounded to the nearest dollar, representing the aggregate market value of the reported holdings in the filing.