SpacDeskSantander US Capital Markets LLC
7 SPAC IPOs underwritten · 7 as left lead · 5 active
Santander US Capital Markets LLC, the U.S. investment banking arm of Spain-based Santander Group, began underwriting SPAC transactions in 2024 and has since served as left lead bookrunner on all seven of its blank-check mandates. The firm operates across equity capital markets, debt capital markets, and advisory services for corporate and institutional clients. Of its seven SPAC mandates, one deal has closed while five remain active and in process, making Santander US Capital Markets LLC one of the more consistently engaged bulge-bracket-affiliated underwriters to enter the blank-check space in the current cycle. To access complete filing data, deal timelines, and underwriter league tables, sign up for a free account at SpacDesk.
| SPAC | Sponsor | IPO Size | Role | Status | IPO Date | Target |
|---|---|---|---|---|---|---|
| MTNE CH4 Natural Solutions Acquisition Corp | — | $300.0M | Lead | Searching | 2026-05-04 | — |
| KRAQW KRAKacquisition Corp | NCTK Sponsor LLC | $342.4M | Lead | Searching | 2026-01-29 | — |
| SBXE SilverBox Corp V | — | $240.0M | Lead | Liquidated | 2025-12-03 | — |
| ALUB-WT Alussa Energy Acquisition Corp. II | Alussa Energy Sponsor II LLC | $287.5M | Lead | Searching | 2025-11-13 | — |
| SDHIR Siddhi Acquisition Corp (Cayman Islands) | Siddhi Sponsor LLC | $276.0M | Lead | Combo Announced | 2025-04-01 | — |
| BACQ Inflection Point Acquisition Corp. IV | — | $250.0M | Lead | Closed | 2024-11-01 | Merlin, Inc. |
| SBXD SilverBox Corp IV | — | $200.0M | Lead | Combo Announced | 2024-08-16 | Parataxis Holdings |
Underwriter data extracted from S-1 and S-1/A prospectus cover sheets filed with the SEC. Role classification (left lead, co-manager) based on syndicate position order. Trust size reflects declared trust at IPO.