Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in EOSE held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 24.1M | $119.5M | +2.8% | 9.237% | 0.00% |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 20.4M | $101.2M | -9.9% | 7.825% | 0.01% |
| 3 | TWO SIGMA INVESTMENTS, LP | 15.0M | $74.4M | +140.0% | 5.753% | 0.06% |
| 4 | DRIEHAUS CAPITAL MANAGEMENT LLC | 14.9M | $73.8M | +4.2% | 5.703% | 0.54% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 14.8M | $73.6M | β | 5.690% | 0.00% |
| 6 | STATE STREET CORP | 8.0M | $39.8M | +4.3% | 3.075% | 0.00% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 7.8M | $38.8M | +8.4% | 2.996% | 0.00% |
| 8 | MARSHALL WACE, LLP | 6.6M | $32.8M | +3529.4% | 2.536% | 0.04% |
| 9 | Caption Management, LLC | 5.9M | $29.5M | β | 2.277% | 0.28% |
| 10 | Crystal Cove Asset Management, LLC | 5.8M | $28.8M | β | 2.230% | 34.65% |
| 11 | Electron Capital Partners, LLC | 5.4M | $26.7M | -12.1% | 2.063% | 1.20% |
| 12 | Walleye Trading LLC | 4.9M | $24.2M | -20.2% | 1.872% | 0.06% |
| 13 | STIFEL FINANCIAL CORP | 4.1M | $20.5M | -2.3% | 1.587% | 0.02% |
| 14 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | 3.4M | $17.1M | +1451.2% | 1.321% | 0.07% |
| 15 | GROUP ONE TRADING, L.P. | 3.0M | $14.9M | +139.3% | 1.153% | 0.49% |
| 16 | MILLENNIUM MANAGEMENT LLC | 3.0M | $14.8M | β | 1.146% | 0.01% |
| 17 | MORGAN STANLEY | 3.0M | $14.7M | -9.4% | 1.135% | 0.00% |
| 18 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.8M | $14.1M | β | 1.090% | 0.00% |
| 19 | Marex Group plc | 2.8M | $13.7M | β | 1.058% | 0.04% |
| 20 | GOLDMAN SACHS GROUP INC | 2.7M | $13.5M | +99.3% | 1.045% | 0.00% |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.6M | $13.1M | +6.8% | 1.009% | 0.00% |
| 22 | TUDOR INVESTMENT CORP ET AL | 2.5M | $12.6M | +154.4% | 0.977% | 0.04% |
| 23 | NORTHERN TRUST CORP | 2.5M | $12.4M | +5.5% | 0.955% | 0.00% |
| 24 | VANGUARD FIDUCIARY TRUST CO | 2.2M | $11.1M | β | 0.860% | 0.00% |
| 25 | CAPITAL FUND MANAGEMENT S.A. | 2.2M | $11.0M | β | 0.853% | 0.06% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in EOSE β a direct measure of their conviction.
Filings activity in EOSE during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 299 | 4.2% | 68.59% | 84.71 pp | $1.08B | 55% |
| Q4 2025 | 312 | +20% | 153.30% | +22.17 pp | $2.42B | +17% |
| Q3 2025 | 259 | +23% | 131.13% | +83.47 pp | $2.07B | +175% |
| Q2 2025 | 211 | +21% | 47.66% | +25.28 pp | $753M | +113% |
| Q1 2025 | 175 | +14% | 22.38% | 4.52 pp | $354M | 17% |
| Q4 2024 | 153 | +28% | 26.90% | +15.23 pp | $425M | +130% |
| Q3 2024 | 120 | 0.8% | 11.67% | +1.87 pp | $184M | +19% |
| Q2 2024 | 121 | β | 9.80% | β | $155M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying EOSE stock.
Based on Q1 2026 13F filings, institutional ownership of Eos Energy Enterprises, Inc. stands at 68.6%, held across 299 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of EOSE, with approximately 24,083,779 shares worth $0.12B as of Q1 2026.
Yes β 3 widely-followed marquee investors appear among the top 25 institutional holders of EOSE, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, TWO SIGMA INVESTMENTS, LP, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for EOSE is 46 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
74 institutions opened new positions in EOSE during Q1 2026, while 87 fully exited. 30 added to existing positions and 195 trimmed.
EOSE institutional ownership fell by 84.71 percentage points quarter-over-quarter, with a net change of -13 holders.
The top 10 institutions account for 56.5% of all reported 13F value in EOSE, and the top 25 account for 78.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Eos Energy Enterprises, Inc. (EOSE) Institutional Ownership