22 institutions reported holding $5.4M of KEYSTONE ACQUISITION 31 (KEYYW) in SEC 13F filings for 2026-06-30. Largest institutional holders: BOOTHBAY FUND MANAGEMENT, LLC ($2.5M), Harraden Circle Investments, LLC ($399,460), GLAZER CAPITAL, LLC ($294,000), Linden Advisors LP ($292,765), METEORA CAPITAL, LLC ($244,888). Source: SEC Form 13F.
来源:SEC 13F 申报文件 · 截至 2026-06-30