399 institutions reported holding $1.74B of EOS ENERGY ENTERPRISES INC (EOSE) in SEC 13F filings for 2026-06-30. Largest institutional holders: BlackRock, Inc. ($159.5M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($131.1M), VANGUARD GROUP INC ($124.7M), CITADEL ADVISORS LLC ($112.6M), TWO SIGMA INVESTMENTS, LP ($80.6M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30