Banco Santander discloses $16.1B in US equity holdings

Banco Santander, S.A. filed a Form 13F holdings report as an institutional investment manager.

Rhea-AI Filing Summary

Banco Santander, S.A. filed a Form 13F holdings report as an institutional investment manager. The filing states a Form 13F information table covering 929 securities positions with an aggregate reported value of $16,078,007,699, rounded to the nearest dollar. The report consolidates positions for five other included managers, including Banco Santander International entities and several affiliated investment and holding companies.

Key Figures

Form 13F Information Table Value Total: $16,078,007,699 Form 13F Information Table Entry Total: 929 Number of Other Included Managers: 5

3 metrics

Form 13F Information Table Value Total $16,078,007,699 Aggregate value of all reportable holdings, rounded to nearest dollar

Form 13F Information Table Entry Total 929 Total number of securities positions reported

Number of Other Included Managers 5 Affiliated managers consolidated under Banco Santander’s report

Key Terms

Form 13F, Institutional Investment Manager, 13F HOLDINGS REPORT, Other Included Managers

4 terms

Form 13F regulatory

"Form 13F Information Table Value Total: 16,078,007,699"

A Form 13F is a quarterly filing that large investment managers must submit to disclose their holdings in publicly traded stocks and certain other securities. It acts like a peek into the portfolios of big investors, helping other market participants see what large players are buying or selling and offering clues about investment trends, crowded trades, and potential market impact.

Institutional Investment Manager regulatory

"The institutional investment manager filing this report"

13F HOLDINGS REPORT regulatory

"Report Type (Check only one.) X | 13F HOLDINGS REPORT."

Other Included Managers financial

"Number of Other Included Managers: | 5"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Banco Santander (SAN) report in its latest Form 13F filing?

Banco Santander reported a Form 13F holdings report covering 929 positions with an aggregate reported value of $16,078,007,699, rounded to the nearest dollar, on behalf of itself and affiliated managers.

How many securities positions did Banco Santander (SAN) disclose on its Form 13F?

Banco Santander disclosed 929 securities positions in its Form 13F information table. This number represents the total entries listed in the report’s information table for its and affiliated managers’ reportable holdings.

What is the total reported value of Banco Santander’s (SAN) 13F portfolio?

The total reported value of Banco Santander’s Form 13F information table is $16,078,007,699. This figure is rounded to the nearest dollar and represents the aggregate value of all reportable positions included in the filing.

How many other included managers are consolidated in Banco Santander’s (SAN) Form 13F?

The Form 13F lists 5 other included managers consolidated under Banco Santander’s report. These include entities such as Banco Santander International and several affiliated investment and holding companies.

What type of Form 13F report did Banco Santander (SAN) submit?

Banco Santander submitted a 13F HOLDINGS REPORT. This means all of the Form 13F-reportable holdings for the reporting manager and its included managers are presented in this single filing, rather than being reported elsewhere.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/29/2026 - 06:19 AM EDT Learn about SEC filing dates

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
Estimated average burden
hours per response:			23.8

Report for the Calendar Year or Quarter Ended: 06-30-2026

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	07-28-2026
[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:		929
	Form 13F Information Table Value Total:		16,078,007,699
			(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