Who Owns ALPEX ACQUISITION CORP (ALPXU)? -- Institutional Holders (2026-06-30)

3 institutions reported holding $12.3M of ALPEX ACQUISITION CORP (ALPXU) in SEC 13F filings for 2026-06-30. Largest institutional holders: MIZUHO SECURITIES USA LLC ($5.6M), RiverPark Advisors, LLC ($4.8M), Calamos Advisors LLC ($2.0M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1MIZUHO SECURITIES USA LLC$5.6M558,604New
2RiverPark Advisors, LLC$4.8M475,000New
3Calamos Advisors LLC$2.0M200,000New

Source: SEC Form 13F filings · as of 2026-06-30