Eos Energy Enterprises, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Stidolph Russell Monoki | — | Option Exercise | 30,788 | $14.43 | $444,271 | 395,143 | Dec 5, 2025 |
| DIMITRIEF ALEXANDER | — | Option Exercise | 18,473 | $14.43 | $266,565 | 237,925 | Dec 5, 2025 |
| Bornstein Jeffrey S | — | Sale | 8,000 | $15.75 | $126,000 | — | Dec 5, 2025 |
| McNeil Jeff | — | Gift | 16,000 | — | — | 99,179 | Dec 4, 2025 |
| Walters Marian | — | Tax Withholding | 16,933 | $15.75 | $266,695 | 135,334 | Dec 4, 2025 |
| Puri Sumeet | Chief Accounting Officer | Sale | 20,501 | $6.98 | $143,097 | 184,290 | Sep 8, 2025 |
| Walters Marian | — | Sale | 50,000 | $7.90 | $395,000 | 133,794 | Sep 3, 2025 |
| DIMITRIEF ALEXANDER | — | Sale | 45,000 | $6.00 | $270,000 | 219,452 | Aug 4, 2025 |
| Mastrangelo Joe | Chief Executive Officer | Option Exercise | 333,333 | — | — | 1,569,893 | Jul 29, 2025 |
| Kroeker Nathan | CCO and Interim CFO | Option Exercise | 220,833 | — | — | 711,887 | Jul 29, 2025 |
| Silberman Michael W | General Counsel | Option Exercise | 145,833 | — | — | 307,237 | Jul 29, 2025 |
| Puri Sumeet | Chief Accounting Officer | Option Exercise | 58,333 | — | — | 153,957 | Jul 29, 2025 |
| Kroeker Nathan | CCO and Interim CFO | Sale | 24,124 | $5.21 | $125,686 | 538,308 | Jul 8, 2025 |
| Mastrangelo Joe | Chief Executive Officer | Sale | 127,152 | $4.92 | $625,588 | 1,236,560 | Jul 5, 2025 |
| Mastrangelo Joe | Chief Executive Officer | Sale | 270,384 | $6.86 | $1,854,834 | 1,109,409 | May 16, 2025 |
| Kroeker Nathan | Chief Commercial Officer | Sale | 152,856 | $6.86 | $1,048,592 | 403,815 | May 16, 2025 |
| Silberman Michael W | General Counsel | Sale | 100,943 | $6.86 | $692,469 | 161,404 | May 16, 2025 |
| Puri Sumeet | Chief Accounting Officer | Sale | 36,173 | $6.86 | $248,147 | 95,624 | May 16, 2025 |
| McNeil Jeff | — | Option Exercise | 78,947 | — | — | 115,179 | May 14, 2025 |
| Nigro Joseph | — | Option Exercise | 35,385 | — | — | 35,385 | May 14, 2025 |
| Walters Marian | — | Option Exercise | 78,947 | — | — | 183,794 | May 14, 2025 |
| Urban David | — | Option Exercise | 46,221 | — | — | 46,221 | May 14, 2025 |
| DIMITRIEF ALEXANDER | — | Option Exercise | 92,105 | — | — | 264,452 | May 14, 2025 |
| Demby Claude | — | Disposition | 31,579 | $6.94 | $219,158 | 141,708 | May 14, 2025 |
| Stidolph Russell Monoki | — | Option Exercise | 105,263 | — | — | 406,460 | May 14, 2025 |
| Bornstein Jeffrey S | — | Option Exercise | 105,263 | — | — | 190,192 | May 14, 2025 |
| Mastrangelo Joe | Chief Executive Officer | Option Exercise | 470,000 | — | — | 1,379,793 | May 8, 2025 |
| Kroeker Nathan | Chief Commercial Officer | Option Exercise | 311,375 | — | — | 556,671 | May 8, 2025 |
| Silberman Michael W | General Counsel | Option Exercise | 205,625 | — | — | 262,347 | May 8, 2025 |
| Puri Sumeet | Chief Accounting Officer | Option Exercise | 82,250 | — | — | 131,797 | May 8, 2025 |
| Kroeker Nathan | Chief Financial Officer | Option Exercise | 100,000 | — | — | 285,811 | Jan 23, 2025 |
| Silberman Michael W | General Counsel | Option Exercise | 83,333 | — | — | 83,333 | Jan 22, 2025 |
| Bornstein Jeffrey S | — | Sale | 132,720 | $2.63 | $349,054 | 7,999 | Sep 12, 2024 |
| CCM Denali Equity Holdings, LP | — | Disposition | 7 | — | — | — | Sep 10, 2024 |
| Puri Sumeet | Chief Accounting Officer | Tax Withholding | 18,786 | $2.33 | $43,771 | 49,547 | Sep 5, 2024 |
| Cerberus Capital Management II, L.P. | — | Award / Grant | 7 | — | — | 7 | Aug 29, 2024 |
| DIMITRIEF ALEXANDER | — | Purchase | 1,000 | $1.87 | $1,870 | 170,347 | Aug 16, 2024 |
| DIMITRIEF ALEXANDER | — | Purchase | 2,000 | $1.68 | $3,360 | 169,347 | Aug 13, 2024 |
| Mastrangelo Joe | Chief Executive Officer | Purchase | 52,800 | $1.43 | $75,504 | 909,793 | Aug 9, 2024 |
| Mastrangelo Joe | Chief Executive Officer | Option Exercise | 254,304 | — | — | 972,676 | Jul 5, 2024 |
| Kroeker Nathan | Chief Financial Officer | Tax Withholding | 41,321 | $1.92 | $79,336 | 185,811 | Jul 5, 2024 |
| Kroeker Nathan | Chief Financial Officer | Option Exercise | 53,610 | — | — | 143,220 | Jul 3, 2024 |
| Bornstein Jeffrey S | — | Option Exercise | 32,328 | — | — | 114,929 | Apr 30, 2024 |
| Demby Claude | — | Option Exercise | 32,328 | — | — | 94,340 | Apr 30, 2024 |
| McNeil Jeff | — | Option Exercise | 36,232 | — | — | 36,232 | Apr 30, 2024 |
| Stidolph Russell Monoki | — | Option Exercise | 32,328 | — | — | 301,197 | Apr 30, 2024 |
| Zibelman Audrey Ann | — | Option Exercise | 32,328 | — | — | 104,897 | Apr 30, 2024 |
| Walters Marian | — | Option Exercise | 32,328 | — | — | 104,847 | Apr 30, 2024 |
| DIMITRIEF ALEXANDER | — | Option Exercise | 32,328 | — | — | 167,347 | Apr 30, 2024 |
| DIMITRIEF ALEXANDER | — | Purchase | 5,000 | $1.13 | $5,650 | 10,000 | Mar 8, 2024 |