EOSENasdaqMiscellaneous Electrical Machinery, Equipment & SuppliesFiscal year ends December 31Also trades as EOSEW
Eos Energy Enterprises, Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 5, 2026
$1.81−0.01 (-0.55%)
Close on Oct 19, 2026
- Market cap
- $615.04M
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
228M
Shares held, 13F filers
Institutional holders
348
77 new, 43 sold out
Net institutional buying
22M
In Q2 2026
Insider trades, 12 months
6 buys · 23 sales
Net sold $17.28M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Legal & General Group Plc | 2,899,961 | 5.40% | 13G (passive) amendment | Dec 31, 2021 |
| BlackRock, Inc. | 25,903,425 | 7.60% | 13G (passive) amendment | Jun 30, 2026 |
| Cerberus Capital Management II, L.P. | 175,829,986 | 32.60% | 13D (active) amendment | Aug 4, 2026 |
| Vanguard Capital Management | 17,239,505 | 5.07% | 13G (passive) | Mar 31, 2026 |
| CCM Denali Equity Holdings GP, LLC | 159,587,654 | 32.00% | 13D (active) amendment | May 12, 2026 |
| G1 Execution Services, LLC | 15,168,902 | 5.80% | 13G (passive) | Jun 30, 2025 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of EOSE | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 27,130,305 | – | $159.53M | +3,046,526 | 0.00% |
| Vanguard Capital Management LLC | 15,021,392 | – | $88.33M | +185,955 | 0.00% |
| Hudson Bay Capital Management LP | 13,683,634 | – | $80.46M | New | 0.22% |
| Driehaus Capital Management LLC | 13,556,010 | – | $79.71M | −1,313,160 | 0.46% |
| Two Sigma Investments, LP | 12,783,883 | – | $75.17M | −1,290,118 | 0.05% |
| State Street Corp | 10,154,935 | – | $59.71M | +2,137,005 | 0.00% |
| Susquehanna International Group, Llp | 9,683,190 | – | $56.94M | +3,332,709 | 0.00% |
| Geode Capital Management, LLC | 8,894,922 | – | $52.31M | +1,082,028 | 0.00% |
| Electron Capital Partners, LLC | 6,681,859 | – | $39.29M | +1,302,198 | 1.57% |
| Morgan Stanley | 5,313,829 | – | $31.25M | +2,353,045 | 0.00% |
| Stifel Financial Corp | 4,418,639 | – | $25.98M | +280,084 | 0.02% |
| Crystal Cove Asset Management, LLC | 4,285,181 | – | $25.20M | −13,306 | 27.49% |
| UBS Group AG | 3,908,447 | – | $22.98M | +2,010,974 | 0.00% |
| Legal & General Group Plc | 3,899,815 | – | $22.93M | +2,854,116 | 0.00% |
| Graham Capital Management, L.P. | 3,566,446 | – | $20.97M | New | 0.38% |
| Citadel Advisors LLC | 3,310,130 | – | $19.46M | −2,790,642 | 0.00% |
| Vanguard Portfolio Management LLC | 3,289,703 | – | $19.34M | +446,895 | 0.00% |
| Northern Trust Corp | 2,906,986 | – | $17.09M | +417,041 | 0.00% |
| Charles Schwab Investment Management Inc | 2,831,969 | – | $16.65M | +200,898 | 0.00% |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 2,573,001 | – | $15.13M | +1,204,500 | 0.02% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|
| Q2 2026 | 348 | 228M | 77 / 135 | 102 / 43 | 64M | 41M |
| Q1 2026 | 318 | 206M | 75 / 137 | 77 / 72 | 82M | 33M |
| Q4 2025 | 322 | 176M | 97 / 123 | 85 / 45 | 56M | 34M |
| Q3 2025 | 276 | 154M | 91 / 87 | 65 / 29 | 46M | 26M |
| Q2 2025 | 215 | 133M | 73 / 86 | 35 / 34 | 60M | 16M |
| Q1 2025 | 177 | 89M | 47 / 61 | 40 / 24 | 18M | 9M |
| Q4 2024 | 155 | 80M | 53 / 45 | 29 / 23 | 30M | 9M |
| Q3 2024 | 126 | 59M | 39 / 28 | 30 / 39 | 18M | 16M |
| Q2 2024 | 127 | 59M | 30 / 42 | 29 / 36 | 17M | 42M |
| Q1 2024 | 133 | 85M | 20 / 44 | 43 / 21 | 8M | 19M |
| Q4 2023 | 135 | 96M | 25 / 56 | 31 / 26 | 38M | 11M |
| Q3 2023 | 136 | 68M | 32 / 41 | 38 / 15 | 12M | 11M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of EOSE | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 10,773,248 | – | $63.35M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 8,955,818 | – | $52.66M | 0.06% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 3,897,114 | – | $22.92M | 0.02% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 3,767,320 | – | $12.73M | 0.04% | Jul 31, 2026 |
| iShares Russell 2000 Growth ETF | 3,156,406 | – | $18.56M | 0.12% | Jun 30, 2026 |
| Bridge Builder Small/Mid Cap Growth Fund | 2,535,193 | – | $14.91M | 0.13% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 1,677,427 | – | $14.14M | 0.03% | May 31, 2026 |
| Vanguard Russell 2000 Index Fund | 1,586,319 | – | $13.37M | 0.08% | May 31, 2026 |
| Schwab U.S. Small-Cap ETF | 1,554,793 | – | $13.11M | 0.06% | May 31, 2026 |
| Driehaus Small Cap Growth Fund | 1,407,970 | – | $8.28M | 0.51% | Jun 30, 2026 |
| Janus Henderson Small/Mid Cap Growth Alpha ETF | 1,159,917 | – | $3.92M | 0.37% | Jul 31, 2026 |
| State Street(R) SPDR(R) S&P Kensho Clean Power ETF | 1,043,027 | – | $6.13M | 2.46% | Jun 30, 2026 |
| State Street(R) SPDR(R) S&P Kensho New Economies Composite ETF | 963,405 | – | $5.66M | 0.20% | Jun 30, 2026 |
| Invesco WilderHill Clean Energy ETF | 958,242 | – | $3.24M | 0.77% | Jul 31, 2026 |
| First Trust NASDAQ Clean Edge Green Energy Index Fund | 840,909 | – | $4.94M | 0.59% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | Latest filing |
|---|---|---|---|
| Joe Mastrangelo | Chief Executive Officer, Director | 2,308,704 | Sep 16, 2026 |
| Sumeet Puri | Chief Accounting Officer | 280,195 | Sep 16, 2026 |
| Alessandro Lagi | Chief Financial Officer | 12,114 | Aug 26, 2026 |
| Michelle Buczkowski | Chief Commercial Officer | 61,827 | Aug 26, 2026 |
| Nathan Kroeker | Chief Commercial Officer | 904,471 | Aug 6, 2026 |
| Marie Batz Martin | Chief Legal Officer | – | Jul 15, 2026 |
| Michael W. Silberman | Chief Legal Officer | 298,277 | Jun 30, 2026 |
| Eric M. Javidi | Chief Financial Officer | – | Mar 19, 2025 |
| Haiyan Song | Director | 15,000 | Sep 15, 2026 |
| Claude Demby | Director | 157,400 | Aug 6, 2026 |
| CCM Frontier Power USA Holdings GP, LLC | Director, 10% owner | – | Aug 6, 2026 |
| Marian Walters | Director | 176,634 | Aug 6, 2026 |
| Joseph Nigro | Director | 41,723 | Aug 6, 2026 |
| Alexander Dimitrief | Director | 280,673 | Aug 6, 2026 |
| David Urban | Director | 97,767 | Aug 6, 2026 |
| GP Manager LLC Cerberus | Director, 10% owner | – | Aug 6, 2026 |
| CCM Frontier JV Holdco, LLC | Director, 10% owner | – | Aug 6, 2026 |
| CCM Frontier Power USA Holdings, LP | Director, 10% owner | – | Aug 6, 2026 |
| Jeffrey S. Bornstein | Director | 145,306 | Aug 6, 2026 |
| Jeff McNeil | Director | 349,562 | Jun 9, 2026 |
| Gregory S. Nixon | Director | 23,111 | Jun 9, 2026 |
| Nathaniel Fick | Director | – | Apr 3, 2026 |
| Russell Monoki Stidolph | Director | 2,518,416 | Dec 8, 2025 |
| Cerberus Capital Management II, L.P. | Director, 10% owner | 7 | Jan 27, 2025 |
| CCM Denali Equity Holdings, LP | Director, 10% owner | 0 | Jan 27, 2025 |
| CCM Denali Equity Holdings GP, LLC | Director, 10% owner | – | Jan 27, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Joe Mastrangelo Chief Executive Officer, Director | Sep 16, 2026 | Sale(10b5-1 plan) | −250,000 | $3.92 | $980.00K | 2,308,704 |
| Sumeet Puri Chief Accounting Officer | Sep 16, 2026 | Sale(10b5-1 plan) | −43,750 | $3.92 | $171.50K | 280,195 |
| Joe Mastrangelo Chief Executive Officer, Director | Sep 14, 2026 | Award | +500,000 | – | – | 2,558,704 |
| Sumeet Puri Chief Accounting Officer | Sep 14, 2026 | Option exercise | +87,500 | – | – | 323,945 |
| Haiyan Song Director | Sep 14, 2026 | Buy | +5,000 | $3.84 | $19.20K | 15,000 |
| Haiyan Song Director | Sep 11, 2026 | Buy | +10,000 | $3.95 | $39.50K | 10,000 |
| Sumeet Puri Chief Accounting Officer | Sep 9, 2026 | Sale(10b5-1 plan) | −34,167 | $4.13 | $141.11K | 236,445 |
| Sumeet Puri Chief Accounting Officer | Sep 5, 2026 | Option exercise | +68,333 | – | – | 270,612 |
| Sumeet Puri Chief Accounting Officer | Jul 28, 2026 | Sale(10b5-1 plan) | −29,167 | $3.36 | $98.00K | 202,279 |
| Nathan Kroeker Chief Commercial Officer | Jul 28, 2026 | Sale(10b5-1 plan) | −110,417 | $3.36 | $371.00K | 887,527 |
| Joe Mastrangelo Chief Executive Officer, Director | Jul 27, 2026 | Sale | −159,154 | $3.61 | $574.55K | 1,947,586 |
| Sumeet Puri Chief Accounting Officer | Jul 25, 2026 | Option exercise | +58,334 | – | – | 231,446 |
| Nathan Kroeker Chief Commercial Officer | Jul 25, 2026 | Option exercise | +220,834 | – | – | 997,944 |
| Joe Mastrangelo Chief Executive Officer, Director | Jul 25, 2026 | Option exercise | +333,334 | – | – | 2,106,740 |
| Alexander Dimitrief Director | Jul 21, 2026 | Option exercise | +17,897 | $5.48 | $98.08K | 269,296 |
| Alexander Dimitrief Director | Jul 21, 2026 | Option exercise | +1,377 | $5.48 | $7.55K | 11,377 |
| Joe Mastrangelo Chief Executive Officer, Director | Jul 21, 2026 | Option exercise | +111,118 | $5.48 | $608.93K | 2,058,704 |
| Marian Walters Director | Jul 21, 2026 | Option exercise | +11,407 | $5.48 | $62.51K | 171,634 |
| Claude Demby Director | Jul 21, 2026 | Option exercise | +1,825 | $5.48 | $10.00K | 157,400 |
| Michelle Buczkowski Chief Administration Officer | Jul 21, 2026 | Option exercise | +2,585 | $5.48 | $14.17K | 61,827 |
| Jeffrey S. Bornstein Director | Jul 21, 2026 | Option exercise | +9,558 | $5.48 | $52.38K | 143,806 |
| Joseph Nigro Director | Jul 21, 2026 | Option exercise | +2,773 | $5.48 | $15.20K | 41,723 |
| Nathan Kroeker Chief Commercial Officer | Jul 21, 2026 | Option exercise | +16,944 | $5.48 | $92.85K | 904,471 |
| David Urban Director | Jul 21, 2026 | Option exercise | +12,185 | $5.48 | $66.77K | 97,767 |
| Nathan Kroeker CCO and Interim CFO | Jul 7, 2026 | Sale(10b5-1 plan) | −79,309 | $4.68 | $371.17K | 777,110 |
| Joe Mastrangelo Chief Executive Officer, Director | Jul 6, 2026 | Tax withholding | −121,245 | $5.06 | $613.50K | 1,773,406 |
| Joe Mastrangelo Chief Executive Officer, Director | Jul 5, 2026 | Option exercise | +254,304 | – | – | 1,894,651 |
| Nathan Kroeker CCO and Interim CFO | Jul 5, 2026 | Option exercise | +105,008 | – | – | 856,419 |
| Nathan Kroeker CCO and Interim CFO | Jul 3, 2026 | Option exercise | +53,610 | – | – | 751,411 |
| Nathan Kroeker CCO and Interim CFO | Jun 30, 2026 | Sale(10b5-1 plan) | −35,289 | $5.86 | $206.79K | 697,801 |
| Sumeet Puri Chief Accounting Officer | Jun 30, 2026 | Sale(10b5-1 plan) | −8,823 | $5.86 | $51.70K | 173,112 |
| Michelle Buczkowski Chief Administration Officer | Jun 30, 2026 | Sale(10b5-1 plan) | −11,469 | $5.87 | $67.32K | 59,242 |
| Michael W. Silberman Chief Legal Officer | Jun 30, 2026 | Sale(10b5-1 plan) | −14,998 | $5.87 | $88.04K | 298,277 |
| Joe Mastrangelo Chief Executive Officer, Director | Jun 30, 2026 | Tax withholding | −60,703 | $6.09 | $369.68K | 1,640,347 |
| Nathan Kroeker CCO and Interim CFO | Jun 26, 2026 | Option exercise | +70,578 | – | – | 733,090 |
| Sumeet Puri Chief Accounting Officer | Jun 26, 2026 | Option exercise | +17,645 | – | – | 181,935 |
| Michelle Buczkowski Chief Administration Officer | Jun 26, 2026 | Option exercise | +22,938 | – | – | 70,711 |
| Michael W. Silberman Chief Legal Officer | Jun 26, 2026 | Option exercise | +29,996 | – | – | 313,275 |
| Joe Mastrangelo Chief Executive Officer, Director | Jun 26, 2026 | Option exercise | +130,570 | – | – | 1,701,050 |
| Joe Mastrangelo Chief Executive Officer, Director | Jun 12, 2026 | Tax withholding | −116,646 | $6.06 | $706.87K | 1,570,480 |
| Joe Mastrangelo Chief Executive Officer, Director | Jun 12, 2026 | Option exercise | +200,000 | $1.34 | $268.00K | 1,687,126 |
| Marian Walters Director | Jun 2, 2026 | Option exercise | +1,782 | – | – | 160,227 |
| Joseph Nigro Director | Jun 2, 2026 | Option exercise | +3,565 | – | – | 38,950 |
| Marian Walters Director | May 28, 2026 | Sale | −30,000 | $9.18 | $275.40K | 158,445 |
| Marian Walters Director | May 28, 2026 | Option exercise | +30,000 | $1.18 | $35.40K | 188,445 |
| Marian Walters Director | May 20, 2026 | Option exercise | +22,319 | $1.18 | $26.34K | 180,764 |
| Marian Walters Director | May 20, 2026 | Sale | −22,319 | $7.20 | $160.70K | 158,445 |
| David Urban Director | May 19, 2026 | Option exercise | +23,111 | – | – | 85,582 |
| Jeffrey S. Bornstein Director | May 19, 2026 | Option exercise | +30,815 | – | – | 146,574 |
| Jeffrey S. Bornstein Director | May 19, 2026 | Returned to company | −12,326 | $6.88 | $84.80K | 134,248 |
| Gregory S. Nixon Director | May 19, 2026 | Award | +23,111 | – | – | 23,111 |
| Gregory S. Nixon Director | May 19, 2026 | Returned to company | −9,244 | $6.88 | $63.60K | 13,867 |
| Jeff McNeil Director | May 19, 2026 | Option exercise | +23,111 | – | – | 122,290 |
| Marian Walters Director | May 19, 2026 | Option exercise | +7,681 | $1.18 | $9.06K | 143,015 |
| Marian Walters Director | May 19, 2026 | Option exercise | +23,111 | – | – | 158,445 |
| Marian Walters Director | May 19, 2026 | Sale | −7,681 | $7.07 | $54.30K | 135,334 |
| Claude Demby Director | May 19, 2026 | Option exercise | +23,111 | – | – | 164,819 |
| Claude Demby Director | May 19, 2026 | Returned to company | −9,244 | $6.88 | $63.60K | 155,575 |
| Alexander Dimitrief Director | May 19, 2026 | Option exercise | +26,963 | – | – | 262,184 |
| Alexander Dimitrief Director | May 19, 2026 | Returned to company | −10,785 | $6.88 | $74.20K | 251,399 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Silberman Michael Former Officer | Sep 22, 2026 | 114,650 | $467.26K | Sep 22, 2026 | RSU Vesting |
| Sumeet Puri Officer | Sep 16, 2026 | 43,750 | $181.56K | Sep 16, 2026 | RSU Vesting |
| Joe Mastrangelo Officer, Director | Sep 16, 2026 | 250,000 | $1.04M | Sep 16, 2026 | RSU Vesting |
| Nathan Kroeker Former Officer | Sep 16, 2026 | 165,625 | $687.34K | Sep 16, 2026 | RSU Vesting |
| Michael W. Silberman Former Officer | Sep 16, 2026 | 109,375 | $453.91K | Sep 16, 2026 | RSU Vesting |
| Sumeet Puri Officer | Sep 9, 2026 | 34,167 | $142.82K | Sep 9, 2026 | RSU Vesting |
| Nathan Kroeker Officer | Jul 28, 2026 | 110,417 | $378.73K | Jul 28, 2026 | RSU Vesting |
| Michael W. Silberman Former Officer | Jul 28, 2026 | 72,917 | $250.11K | Jul 28, 2026 | RSU Vesting |
| Sumeet Puri Officer | Jul 28, 2026 | 29,167 | $100.04K | Jul 28, 2026 | RSU Vesting |
| Nathan Kroeker Officer | Jul 7, 2026 | 79,309 | $412.41K | Jul 7, 2026 | RSU Vesting |
| Sumeet Puri Officer | Jun 30, 2026 | 8,823 | $52.85K | Jun 30, 2026 | RSU Vesting |
| Michael W. Silberman Officer | Jun 30, 2026 | 14,998 | $89.84K | Jun 30, 2026 | RSU Vesting |
| Nathan Kroeker Officer | Jun 30, 2026 | 35,289 | $211.38K | Jun 30, 2026 | RSU Vesting |
| Michelle Buczkowski Officer | Jun 30, 2026 | 11,469 | $68.70K | Jun 30, 2026 | RSU Vesting |
| Walters Marian Officer | May 28, 2026 | 30,000 | $275.40K | May 28, 2026 | Stock Option Exercise |