Filer Snapshot

Banco Santander, S.A.

CIK 0000891478. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Company

Total filings

46

Latest filing

08 May 2026

Industry

Commercial Banks, Nec

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: 13F-HR for Q1 2026. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

Largest parsed holding

BSBR

$3.08B reported value

Open holding

13D/G large stake

AGRO

31 Mar 2025 · 1.9% ownership

Open 13D/G

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Source: SEC Form 13F

13F-HR filed on 08 May 2026 for CIK 0000891478.

View source filing
Ownership signals CIK-linked ownership evidence from parsed SEC filings. 1 signal
Parsed SEC ownership signals

Parsed SEC ownership coverage

These bars compare filing-backed value available in each disclosure family. Read them as separate lenses, not as one combined ownership total.

13F portfolio$12.4B

Quarterly institutional holdings reported on Form 13F; not total AUM.

Forms 3/4/5 positions$10.78B

Reporting-owner positions with enough filing detail to estimate value.

Latest reported 13F value

13F
$12.4B

Reported market value from the latest parsed Form 13F information table; this is not total assets under management.

Source: SEC Form 13FScope: U.S.-listed equity holdings

Forms 3/4/5 position value

3/4/5
$10.78B

Estimated from parsed Forms 3/4/5 when filings include enough share and price data.

Source: Forms 3/4/5Confidence: Estimated when price data is available

Largest 13F holdings

13F
BSBR MSFT FER NVDA TTE
+15 moreAAPL AMZN GLD GOOGL RACE META GOOG JPM SPY AVGO VOO LLY XOM QQQM NFLX

Largest symbols in the latest parsed Form 13F information table.

Freshness: Latest parsed 13F period

Largest linked holdings

Largest issuer positions linked to this CIK across parsed 13F, 13D/G, and Forms 3/4/5 records.

SC

Largest 13F holdings

Largest symbols in the latest parsed Form 13F information table.

BSBR MSFT FER NVDA TTE AAPL AMZN GLD
+12 moreGOOGL RACE META GOOG JPM SPY AVGO VOO LLY XOM QQQM NFLX

Largest active 13G stakes

Passive or institutional large-stake positions disclosed in parsed Schedule 13G filings.

AGRO
How to read these SEC ownership signals
  • Read each filing family separately: Form 13F, Schedules 13D/G, and Forms 3/4/5 answer different SEC disclosure questions and should not be blended into one ownership total.
  • Use 13F values for visible U.S.-listed equity portfolios, 13D/G rows for large beneficial-owner stakes, and Forms 3/4/5 rows for reporting-owner positions and transactions.
  • Open the linked research path when you need the filing, CIK, issuer, CUSIP, date, or source trail behind a value.
At a glance Names, identifiers, and filing context for this profile. 2 identity fields
Business address
Ciudad Grupo Santander, Boadilla Del Monte, Madrid, Spain, 28660
EDGAR profile Static EDGAR fields kept behind disclosure so the main profile stays readable. 3 profile fields available
Incorporated in
Spain
Fiscal year end
31 December
Former names on EDGAR
BANCO SANTANDER SA (to 25 Sep 2007), BANCO SANTANDER CENTRAL HISPANO SA (to 25 Sep 2007)

Filer intelligence

What SEC filings say about Banco Santander, S.A.

A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.

Quick read

  • Latest parsed 13F shows $12.4B across 470 reported holdings for Q1 2026.
  • Largest parsed 13F holding: BSBR at $3.08B.
  • 1 recent 13D/G stake row found; top row is AGRO at 1.9% ownership.
  • Forms 3/4/5 show insider context for SC worth $10.78B.

SEC source mix

Counts show available parsed rows, not one combined ownership total.

XML parsed
13F portfolio 470 rows

Quarterly institutional portfolio holdings.

Open
13D/G stakes 1 rows

Beneficial ownership and large-stake disclosures.

Open
Forms 3/4/5 1 rows

Officer, director, and 10% owner holdings or transactions.

Open

Top parsed 13F holdings

Visual share of the latest parsed 13F portfolio. Values are reported market value, not a recommendation.

Q1 2026 - 08 May 2026

Top 5 concentration

42%

Share of latest parsed 13F value represented by the visible holdings below.

Top 5 reported value

$5.19B

Compared with $12.4B total 13F value.

Top 5 net change

+$153.2M

Position-value change inside the visible top holdings only.

13F concentration map

A simple visual split of the latest parsed 13F portfolio.

Largest add: MSFT · Largest trim: META

BSBR MSFT FER NVDA TTE Other holdings

BSBR

24.9%

Banco Santander Brasil S A

$3.08B

MSFT

5.5%

Microsoft Corp

$679.75M

FER

4.7%

Ferrovial Se

$584.44M

NVDA

3.7%

Nvidia Corporation

$459.7M

TTE

3.1%

Totalenergies Se

$379.31M

13D/G large-stake context

AGRO

31 Mar 2025 · Common Shares, par value $1.50 per share

1.9%

Forms 3/4/5 insider context

SC

27 Jan 2022 · 10% owner

$10.78B

Latest update

What changed recently for Banco Santander, S.A.

New filing available

Latest 13F period: Q1 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

08 May 2026

Page type

Filer profile

Latest period

Q1 2026

Institutional portfolio context was refreshed from a 13F filing filed on 08 May 2026.

Benchmark Context

Benchmark context for this company

Banco Santander, S.A. has a source-backed company facts view where you can compare the latest reported metrics with its own recent history and with peer rankings for the same metric.

Compared with

Start on the facts page for period-to-period context, then open a metric ranking when you want to compare the same reported fact across other SEC-reporting companies.

Why this is notable

Latest 13F period: Q1 2026. That gives you a fresh baseline before you compare this company with peers.

  • Latest company facts filing date: 27 Feb 2026.
  • Peer comparisons stay conservative: same metric, compatible units, latest valid company row only.
  • Open the facts page first if you want the cleanest path to verification.

Benchmark context is only shown where the app has enough comparable SEC-backed data to keep the interpretation honest.

SEC filing record

CIK 0000891478 filing coverage

Start with this filing record, then use the linked ownership pages when parsed 13F, 13D/G, Forms 3/4/5, or facts data exists for this CIK.

SEC filings
46
First seen
14 Feb 2017
Latest filing
08 May 2026
Entity
Company

Industry context: Commercial Banks, Nec.

Latest Filings

Showing the latest 12 of 46 SEC filings for Banco Santander, S.A..

13F-HR

13F-HR filing

Filing date
08 May 2026
Reporting date
31 Mar 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR/A

13F-HR/A filing

Filing date
05 Mar 2026
Reporting date
30 Jun 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
20-F

20-F filing

Filing date
27 Feb 2026
Reporting date
31 Dec 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
13 Feb 2026
Reporting date
31 Dec 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
12 Nov 2025
Reporting date
30 Sep 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
01 Aug 2025
Reporting date
30 Jun 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
09 May 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
09 May 2025
Reporting date
31 Mar 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
20-F

20-F filing

Filing date
28 Feb 2025
Reporting date
31 Dec 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
07 Feb 2025
Reporting date
31 Dec 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
SCHEDULE 13G

SCHEDULE 13G filing

Filing date
06 Feb 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
13F-HR

13F-HR filing

Filing date
12 Nov 2024
Reporting date
30 Sep 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
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