BANCO SANTANDER SA ADR is a security (CUSIP 05964H905) tracked across SEC portfolio filings. 6 institutional managers reported $19.6M on Form 13F as of 2026-03-31.
| Manager | Location | Value | Shares |
|---|---|---|---|
| Optiver Holding B.V. | AMSTERDAM, P7 | $8.0M | — |
| WATER ISLAND CAPITAL LLC | New York, NY | $7.7M | — |
| GROUP ONE TRADING, L.P. | CHICAGO, IL | $2.2M | — |
| SIMPLEX TRADING, LLC | CHICAGO, IL | $1.3M | — |
| IMC-Chicago, LLC | CHICAGO, IL | $389K | — |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |