Company · Ownership research

Banco Santander, S.A. SAN

CIK 0000891478 · CUSIP 05964H105

Insider tradingInitial holdingsInstitutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 05964H105 (SAN), not CUSIP 05964H905 (SAN), CUSIP 05964H955 (SAN), CUSIP E19790109 (BCDRF), and does not merge CUSIPs.

This page lists the top 20 of 429 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	Fisher Asset Management, LLC CIK 850529 · View history	$859.90M 128,343,210 shares	0.37%	-9.93M(-7.20%)Reduced	SEC filing ↗ May 14, 2025	▾
02	Mondrian Investment Partners LTD CIK 1317724 · View history	$255.37M 38,115,296 shares	4.37%	-5.39M(-12.40%)Reduced	SEC filing ↗ May 13, 2025	▾
03	MORGAN STANLEY CIK 895421 · View history	$187.14M 27,931,646 shares	0.01%	-1.08M(-3.70%)Reduced	SEC filing ↗ May 15, 2025	▾
04	FMR LLC CIK 315066 · Amended · View history	$169.97M 25,369,239 shares	0.01%	+3.42M(+15.60%)Added	SEC filing ↗ Nov 5, 2026	▾
05	GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history	$115.42M 17,226,474 shares	0.02%	-191.12K(-1.10%)Reduced	SEC filing ↗ May 16, 2025	▾
06	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$99.89M 14,909,545 shares	0.08%	+1.24M(+9.00%)Added	SEC filing ↗ May 14, 2025	▾
07	Chevy Chase Trust Holdings, LLC CIK 1462020 · View history	$79.57M 11,875,594 shares	0.25%	+2.77M(+30.50%)Added	SEC filing ↗ Apr 23, 2025	▾
08	NORTHERN TRUST CORP CIK 73124 · View history	$76.77M 11,457,741 shares	0.01%	+682.48K(+6.30%)Added	SEC filing ↗ May 13, 2025	▾
09	BlackRock, Inc. CIK 2012383 · View history	$74.96M 11,187,752 shares	0.00%	+1.06M(+10.50%)Added	SEC filing ↗ May 2, 2025	▾
10	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$73.20M 10,925,108 shares	0.02%	-299.73K(-2.70%)Reduced	SEC filing ↗ May 13, 2025	▾
11	TODD ASSET MANAGEMENT LLC CIK 1071483 · View history	$58.99M 8,803,879 shares	1.39%	-92.31K(-1.00%)Reduced	SEC filing ↗ May 12, 2025	▾
12	CIBC Private Wealth Group LLC CIK 1298088 · View history	$53.49M 9,285,923 shares	0.11%	-1.27M(-12.00%)Reduced	SEC filing ↗ May 14, 2025	▾
13	Optiver Holding B.V. CIK 1859606 · View history	$38.84M 5,797,293 shares	1.50%	+3.95M(+213.90%)Added	SEC filing ↗ May 15, 2025	▾
14	TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY CIK 714142 · View history	$36.38M 5,429,260 shares	0.33%	0(0.00%)Unchanged	SEC filing ↗ May 5, 2025	▾
15	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$22.11M 3,299,880 shares	0.01%	-107.23K(-3.10%)Reduced	SEC filing ↗ May 13, 2025	▾
16	BARCLAYS PLC CIK 312069 · Amended · View history	$19.20M 2,865,477 shares	0.01%	+2.19M(+327.40%)Added	SEC filing ↗ Mar 17, 2026	▾
17	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$19.00M 2,835,507 shares	0.00%	+180.16K(+6.80%)Added	SEC filing ↗ May 15, 2025	▾
18	CITIGROUP INC CIK 831001 · View history	$15.74M 2,349,567 shares	0.01%	+1.48M(+170.60%)Added	SEC filing ↗ May 12, 2025	▾
19	JPMORGAN CHASE & CO CIK 19617 · View history	$14.77M 2,204,594 shares	0.00%	+155.86K(+7.60%)Added	SEC filing ↗ May 12, 2025	▾
20	BNP PARIBAS FINANCIAL MARKETS CIK 1166588 · View history	$13.45M 2,007,339 shares	0.01%	+2.00M(+18,746.50%)Added	SEC filing ↗ May 14, 2025	▾

Showing 20 / 429 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

429

Cancelled or null records excluded

Disclosed shares

397,820,907

Not deduplicated across managers

Disclosed value

$2.66B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Banco Santander, S.A. · Q1 2025

Explore all 429 reporting institutions.

This page includes 20 of 429 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 429 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_institutional_holdings
{"action":"holders","cusip":"05964H105","quarter":"2025Q1","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.