Eos Energy Enterprises, Inc. (EOSE) Institutional Ownership

Ownership Summary

Eos Energy Enterprises, Inc. (NASDAQ:EOSE) showed up in the 13F filings of 313 institutional investors as of December 2025.

• These investors held 66.4% of outstanding shares in December 2025, up from 58.0% in September 2025.
• They increased total shares held in Eos Energy Enterprises by 21.49% from the prior quarter, while the number of investors in EOSE increased 101.94% year over year.
• During the quarter, 213 of these 313 funds increased positions in EOSE, 85 reduced exposure, and 15 held steady.
• The aggregate institutional position in Eos Energy Enterprises amounted to 180.37Mn shares as of December 2025, up by 31.91Mn shares quarter on quarter, and up 99.29Mn shares year over year.
• As of December 31, 2025, BlackRock, Inc. held the largest stake in Eos Energy Enterprises with 24.08Mn shares, accounting for 8.87% of total shares outstanding.
• Top purchasers of EOSE stock for the quarter ending December 2025 included VANGUARD CAPITAL MANAGEMENT LLC (14.84Mn), TWO SIGMA INVESTMENTS, LP (8.72Mn), MARSHALL WACE, LLP (6.43Mn), Crystal Cove Asset Management, LLC (4.3Mn), CITADEL ADVISORS LLC (3.64Mn).
• The biggest sellers of Eos Energy Enterprises for the quarter ending December 2025 included Electron Capital Partners, LLC (6.86Mn), JANE STREET GROUP, LLC (1.85Mn), SIMPLEX TRADING, LLC (1.26Mn), FMR LLC (1.11Mn), Barclays Plc (832.31K).
• Eos Energy Enterprises's 10 largest shareholders as of December 2025 include BlackRock, Inc. (24.08Mn), DRIEHAUS CAPITAL MANAGEMENT LLC (14.87Mn), VANGUARD CAPITAL MANAGEMENT LLC (14.84Mn), TWO SIGMA INVESTMENTS, LP (14.07Mn), State Street Corp (8.02Mn), GEODE CAPITAL MANAGEMENT, LLC (7.81Mn), MARSHALL WACE, LLP (6.61Mn), SUSQUEHANNA INTERNATIONAL GROUP, LLP (6.35Mn), CITADEL ADVISORS LLC (6.1Mn), Electron Capital Partners, LLC (5.38Mn) per Business Quant data.