Banco Santander, S.A.

SIMPLEX TRADING, LLC SAN

Report date

3/31/2026

Quarter

2026 Q1

Filed

5/14/2026

Shares

14,008

Value ($000)

158

Weight

0.0%

2019 Q4 - 2026 Q1 (23 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2026 Q1	5/14/2026	158	0.0%	14,008	3/31/2026
2025 Q2	8/5/2025	1,166	0.0%	140,540	6/30/2025
2025 Q1	5/12/2025	310	0.0%	46,318	3/31/2025
2024 Q4	2/11/2025	109	0.0%	23,986	12/31/2024
2024 Q3	11/8/2024	66	0.0%	13,010	9/30/2024
2024 Q2	7/25/2024	111	0.0%	24,139	6/30/2024
2023 Q4	2/2/2024	235	0.0%	56,818	12/31/2023
2023 Q3	11/1/2023	226	0.0%	60,252	9/30/2023
2023 Q2	8/4/2023	87	0.0%	23,618	6/30/2023
2023 Q1	4/27/2023	129	0.0%	35,195	3/31/2023
2022 Q4	2/2/2023	1,101	0.0%	373,485	12/31/2022
2022 Q3	11/4/2022	925	0.0%	399,009	9/30/2022
2022 Q2	8/3/2022	832	0.0%	297,232	6/30/2022
2022 Q1	5/2/2022	831	0.0%	245,920	3/31/2022
2021 Q4	2/23/2022	1,357	0.0%	412,527	12/31/2021
2021 Q3	10/28/2021	1,002	0.0%	253,130	9/30/2021
2021 Q2	8/12/2021	989	0.0%	253,130	6/30/2021
2021 Q1	4/26/2021	900	0.0%	262,646	3/31/2021
2020 Q4	2/2/2021	0	0.0%	187,694	12/31/2020
2020 Q3	10/14/2020	316	0.0%	170,912	9/30/2020
2020 Q2	7/13/2020	365	0.0%	151,811	6/30/2020
2020 Q1	4/29/2020	21	0.0%	9,106	3/31/2020
2019 Q4	2/5/2020	98	0.0%	23,722	12/31/2019